Butterfly Valves

Product Details:

Pneumatic Resilient Wafer & Lug Type Butterfly Valve
Manufacturer of Pneumatic Actuator Operated Ecotech full Lug CI Body & S.G. Iron / CF8 / CF8M Disc Type PN 10 Butterfly Bonded Valve with NBR Rubber Moulded.
Inflatable Seated with Replaceable Seat Pneumatic Butterfly Valve
Replaceable Seat Pneumatic Butterfly Valve
Pneumatic Piston Actuator Butterfly Valve
Pneumatic Cement Butterlfy Valve
Teflon Sleeve Butterfly Valve
Pneumatic Wafer & Lug Type Butterfly Valve
Replaceable Muffler Butterfly Valve
Wafer Type Butterfly Valve
Double Flange Butterfly Valve
Wafer Type Damper Valve
Double Flange Damper Valve
FEP / PFA Lined Butterfly Valve
"PTFE SLEEVE" Disc Butterfly Valve
"UPVC" Butterfly Valve
Double Eccentric Butterfly Valve
Double Eccentric Double Flange Butterfly Valve 150#
Double Eccentric Butterfly Valve 300# & 600#
Spherical Disc Valve
"Metal Seated" Spherical Disc Valve
"Triple" Off – Set Butterfly Valve
Pharma Butterfly Valve
Double Flange MS Fabricated Butterfly Valve
Aluminium Butterfly Valve
Centric Butterfly Valve
Lug Type centric Butterfly Valve
Wafer Type centric Butterfly Valve
pneumatic actuated butterfly valves
pneumatically controlled butterfly valves, which are used to control the flow of a media remotely. They can have either a lug or wafer connection style. Based on the actuator design (single or double acting) the actuator will open and close the butterfly valve with compressed air (single acting uses a spring to either open or close the valve). The butterfly valve has a disc that rotates with the actuator to open or close the butterfly valve. The butterfly valve design allows for good sealing properties, durability, and reliability for your application. Pneumatic actuators are a reliable solution and often used to control larger valves than electric actuators at a lower investment cost. There are various housings, seals, and sizes of pneumatically controlled butterfly valves to allow you to find the right one for your application.

Product Details:

Electrically Actuated Butterfly Valves
A range of butterfly valves supplied completely assembled with electric actuators which are small, lightweight and compact in design but still offering high output torques. All valve and actuator packages are tested and issued with certification confirming the actuators functionality before despatch.

Type
Multi-Flange Wafer • ISO 5211 Mount • Electrically Operated
Size & Connections: DN50 to DN300 • Wafer – Between BS4504 PN6/10/16, ANSI150, JIS10K & BS Flanges
Duty: Water
Materials: Epoxy Coated Cast/Ductile Iron Body • Stainless Steel Disc • EPDM Lined
Pressure Rating: 25-250mm PN16 • 300mm PN10
Temperature: -10°C to 120°C
Compliance & Approvals: WRAS (CBF10/J9) • Length to EN558-1 Series 20 • Actuator Functionality Certificate

Electrically Actuated (Spring Return) Wafer Butterfly Valve, EPDM Lined – WRAS Approved
WRAS approved general purpose butterfly valve with an EPDM liner, offering a long life with low maintenance. Supplied completely assembled

Electrically Actuated (Spring Return) Wafer Butterfly Valve, EPDM Lined – WRAS Approved
Electrically Actuated Wafer Flange Butterfly Valve – NBR Lined

A wafer pattern butterfly valve with a ductile iron body, aluminum bronze disc and an NBR liner suitable for a wide variety of isolation duties.

Electrically Actuated Wafer Flange Butterfly Valve – EPDM Lined

A wafer pattern butterfly valve with a ductile iron body, stainless steel disc and an EPDM liner suitable for water duties.

Electrically Actuated Lugged Butterfly Valve, EPDM Lined – WRAS Approved

WRAS approved general purpose butterfly valve with an EPDM liner, offering a long life with low maintenance.

Electrically Actuated Stainless Steel Wafer Butterfly Valve, PTFE Lined

A butterfly valve with a stainless steel body and disc and PTFE liner makes this valve a cost-effective solution for a wide variety of isolation duties.

Electrically Actuated Marine Quality Wafer Butterfly Valve

A wafer pattern butterfly valve with a ductile iron body, stainless steel or aluminum bronze disc and options of an NBR, EPDM or Viton liner suitable for a wide variety of isolation duties.

Electrically Actuated Marine Quality Double Flange Butterfly Valve

A double flange pattern butterfly valve with a ductile iron body, stainless steel or aluminum bronze disc and options of an NBR, EPDM or Viton liner suitable for a wide variety of isolation duties.

 Electrically Actuated Marine Quality Lugged Butterfly Valve

A lugged pattern butterfly valve with a ductile iron body, stainless steel or aluminum bronze disc and options of an NBR, EPDM or Viton liner suitable for a wide variety of isolation duties.

Countries:
Kyrgyzstan, Nepal, Bhutan, Laos, Myanmar, Thailand, Vietnam, Spratley, Brunei, Malaysia, Combodia, Singapore, Indonesia, Est Timor, Australia, Niue, Samoa, Wallis and futuna, Fiji, New Caledonia, Samoa, Tokelau, Kiribati, Tuvalu, Solomon, Nauru, Papua New Gunea, Micronesia, Palau, Micronesia, Guam, Marshall, Northern Maniana, Philippines, Taiwan, South Korea, North Korea, Japan, Sri Lanka, Maldives, Afghanistan, Uzbekistan, Tajikistan, Kazakhstan, Mongolia, Russia.
Indonesia, Malaysia, South Africa, Ghana, Nigeria, Senegal, Egypt, Turkey, Benin, Burkina Faso, Cape Verde, Cote d'Ivoire (Ivory Coast), Gambiav, Guinea, Guinea-Bissau, Liberia, Mali, Mauritania, Niger, Saint Helena, Sierra Leone, Sao Tome and Principe
Togo, Algeria, Libya, Morocco, Tunisia, South Sudan, Sudan, Western Sahara (Territory).

Product Details:

4Matic valves offers unique triple sealing system for shaft sealing eliminates any fugitive emission or secondary leakage.

4Matic valves offers Self lubricated PTFE lined bearings for both drive end and non-drive end shaft ensures minimum bearing friction torque.

4Matic valves offer Seat liner extending on to the flange contact faces, eliminates the need for separate flange gaskets during installation.

4Matic valves offers Controlled compression of the gasket face to offer optimum sealing & prevent gasket face crushing failure.

4Matic valves offers Bi-directional valve with tight shut off sealing capability to hold vacuum to rated pressure in either direction.

4Matic valves offers excellent adaptability for actuated operation through standardized top flange mounting dimensions for actuator fitment.

4Matic valve offers Suitability for ON /OFF as well as throttling duties.

4Matic valves offers Choice of seat and disc materials to suit media conditions and service requirements.

4Matic valves offers Adaptability to fit between companion flanges of all popular flange standards for the wafer style body.

4Matic valves offers Possibility of lower seat rating to obtain reduced operating torque and extended seat life for low operating pressures.

4Matic valves offers Valves of DN 250 and higher are provided with bottom thrust bearings.

4Matic valves offers Valves of DN 600 and higher are provided with additional top shaft sealing and guide brush.

Countries:
Kyrgyzstan, Nepal, Bhutan, Laos, Myanmar, Thailand, Vietnam, Spratley, Brunei, Malaysia, Combodia, Singapore, Indonesia, Est Timor, Australia, Niue, Samoa, Wallis and futuna, Fiji, New Caledonia, Samoa, Tokelau, Kiribati, Tuvalu, Solomon, Nauru, Papua New Gunea, Micronesia, Palau, Micronesia, Guam, Marshall, Northern Maniana, Philippines, Taiwan, South Korea, North Korea, Japan, Sri Lanka, Maldives, Afghanistan, Uzbekistan, Tajikistan, Kazakhstan, Mongolia, Russia.
Indonesia, Malaysia, South Africa, Ghana, Nigeria, Senegal, Egypt, Turkey, Benin, Burkina Faso, Cape Verde, Cote d'Ivoire (Ivory Coast), Gambiav, Guinea, Guinea-Bissau, Liberia, Mali, Mauritania, Niger, Saint Helena, Sierra Leone, Sao Tome and Principe
Togo, Algeria, Libya, Morocco, Tunisia, South Sudan, Sudan, Western Sahara (Territory).

Product Details:

Ductile Iron Butterfly Valves for water applications.

Butterfly valve Seat Construction

Stoppage of flow is accomplished by the valve disk sealing against a seat that is on the inside diameter periphery of the valve body. Many Butterfly valves have an elastomeric seat against which the disk seals. Other Butterfly valves have a seal ring arrangement that uses a clamp-ring and backing-ring on a serrated edged rubber ring. This design prevents extrusion of the O-rings.

In early designs, a metal disk was used to seal against a metal seat. This arrangement did not provide a leak-tight closure, but did provide sufficient closure in some applications (i.e., water distribution lines).

Butterfly valve Body Construction

Butterfly valve body construction varies. The most economical is the wafer type that fits between two pipeline flanges. Another type, the lug wafer design, is held in place between two pipe flanges by bolts that join the two flanges and pass through holes in the valve's outer casing. Butterfly valves are available with conventional flanged ends for bolting to pipe flanges, and in a threaded end construction.

Product Details:

4Matic offers Manual (Gear / Handle) Centric Disc Wafer Type Butterfly Valve, engineered for multiple On/Off Operations.
Wafer Butterfly Valve C95800 Aluminum Bronze

 

Now the triple offset butterfly valve is the most widely use type butterfly valve,the sealing face of the disc is ellipse not round,the shape of the sealing face is dissymmetry.so for many kinds of the process pipeline,no matter on-off valve or adjusting valve,you can use it rest assured if you choose the right type,and cost effective.

 
General Characteristic
 
•Pressure class according to ANSI 150, ANSI 300,ANSI 600,ANSI 900 AND
 PN10,PN16,PN25,PN40,PN100,PN160
 
•Size from DN50-DN3000
 
•Drive method: Lever,Hand wheel,electrical,hydraulic,pneumatic actuator
 
•Temperature range up to 815C
 
•Metal seating,laminated seal and seat made of stainless steel.
 
•Anti blow-out shaft API609
 

•Material can be steel casting,stainless steel ,special steel ect.

Product Details:

4Matic High Performance Valves SPECIFICATIONS

SIZE RANGE: 2 1/2" - 66" (65mm - 2000mm)

BODY STYLE: Wafer, Lug and Double Flanged

TEMPERATURE RANGE: -20°F to 500°F (-29°C to 600°C)

PRESSURE RATINGS: ASME Class 150, 300 and 600

SHUTOFF RATING: Zero Leakage

BODY MATERIALS: Carbon Steel, Stainless Steel, Nickel Aluminum Bronze

DISC MATERIALS: Stainless Steel, Nickel Aluminum Bronze

STEM MATERIALS: Stainless Steel, Monel K500

SEAT MATERIALS: Standard - RTFE with Resilient Energizer, PTFE with Resilient Energizer Fire Safe - RTFE and Inconel with Resilient Energizer

APPLICATIONS: High Pressure, High Temperature, Critical Service.

Countries:
Kyrgyzstan, Nepal, Bhutan, Laos, Myanmar, Thailand, Vietnam, Spratley, Brunei, Malaysia, Combodia, Singapore, Indonesia, Est Timor, Australia, Niue, Samoa, Wallis and futuna, Fiji, New Caledonia, Samoa, Tokelau, Kiribati, Tuvalu, Solomon, Nauru, Papua New Gunea, Micronesia, Palau, Micronesia, Guam, Marshall, Northern Maniana, Philippines, Taiwan, South Korea, North Korea, Japan, Sri Lanka, Maldives, Afghanistan, Uzbekistan, Tajikistan, Kazakhstan, Mongolia, Russia.
Indonesia, Malaysia, South Africa, Ghana, Nigeria, Senegal, Egypt, Turkey, Benin, Burkina Faso, Cape Verde, Cote d'Ivoire (Ivory Coast), Gambiav, Guinea, Guinea-Bissau, Liberia, Mali, Mauritania, Niger, Saint Helena, Sierra Leone, Sao Tome and Principe
Togo, Algeria, Libya, Morocco, Tunisia, South Sudan, Sudan, Western Sahara (Territory).

Product Details:

4Matic supply valves, actuators and associated equipment from locations worldwide. We hold the world’s largest stock of valves and can supply these valves from stock on a fast turnaround, tested and packaged to your requirements. Our in-house engineering team are experts in valve modification and recertification and have the ability to change the design and specification of valves to suit your requirements.

Butterfly valves

A Butterfly valve is a quarter-turn rotational motion valve, that is used to stop, regulate, and start flow.

Butterfly valves are easy and fast to open. A 90° rotation of the handle provides a complete closure or opening of the valve. Large Butterfly valves are usually equipped with a so-called gearbox, where the handwheel by gears is connected to the stem. This simplifies the operation of the valve, but at the expense of speed.

Product Details:

• Material : PVC, CPVC, PP, PVDF
• Size : 1½” – 8”; 63mm – 225mm ; DN50 – DN200
• Standard : ANSI, DIN, JIS
• Joint End : Flanges
• Working Pressure: 150 PSI
• Operating Temperature : PVC (0~55???); CPVC and PP (0~95???)
• Valve body color : PVC (Dark Gray), CPVC (Light Gray), PP (Light Yellow)

Product Details:

• Size also available from 40mm to 2000mm.
• 4Matic Butterfly valve incorporates the optimum design features to provide long trouble free service in the field. This general purpose soft seated Butterfly valve has a fully rubber lined single piece body with centric disc construction and is available in wafer type body pattern. 

Product Details:

A butterfly valve is from a family of valves called quarter-turn valves. In operation, the valve is fully open or closed when the disc is rotated a quarter turn. The "butterfly" is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. 4Matic offers Manual (Gear / Handle) Centric Disc Wafer Type Butterfly Valve, engineered for multiple On/Off Operations.

Product Details:

• Size also available 40mm to 600mm. 
• PTFE Cast Steel Butterfly Design and Manufacture: API609, ASME B16.34
• Face to face (end to end): API 609, ASME B16.10
• Flanged connection: ANSI B16.5 / Class 150#
• Test and inspection: API 598,
• Wall thickness: API 600
• Body Material: Cast Iron (CI) + PTFE Lining, SG Iron+ PTFE Lining, A216-WCB (Carbon Steel)+ PTFE Lining, A217-WC6 (1-1/4Cr-1/2Mo)+ PTFE Lining, A217-WC9 (2-1⁄4Cr–1Mo)+ PTFE Lining, A217-C5 (5Cr–1⁄2Mo)+ PTFE Lining, A217-C12 (9Cr–1Mo), A352-LCB (Carbon Steel), A352-LCC (Carbon Steel)
• All valves are designed to comply with the requirements of ASME B16.34, and the ASME as well as customers' requirements as applicable.

Quality Assurance (QA):

• Every step from procurement through production, welding, assembly, testing, and packaging is in accordance with quality programs and procedures (ASME Section III manual and ISO 9001:2015 manual).

Quality Control (QC):

• The QC is responsible for all aspects of quality, from receiving of material to control of machining, welding, nondestructive examination, assembly, pressure testing, cleaning, painting, and packaging.
• Pressure Testing:
• Each valve is pressure tested in accordance with ASME B16.34, API 598, or special customers' requirements as applicable.

Actuators:

• Handle / Gear Operated, Electric Actuator Operated, Cylinder Operated, Pneumatic Actuator Operated and Chain Wheel Operated options

Product Details:

• Size also available from 40 mm to 2000 mm big size also available on request.
• 4Matic high performance Triple Eccentric Butterfly Valves are complete metal to metal seated valves suitable for both throttling and positive isolation applications. These valves are capable of bi-directional flow control, zero leakage, low fugitive emissions, steam-based applications (up to 550°C) and for cryogenic applications (down to -196°C).

Seat Disk and Stem of a Butterfly valve

The stem and disk for a Butterfly valve are separate pieces. The disk is bored to receive the stem. Two methods are used to secure the disk to the stem so that the disk rotates as the stem is turned. In the first method, the disk is bored through and secured to the stem with bolts or pins. The alternate method involves boring the disk as before, then shaping the upper stem bore to fit a squared or hex-shaped stem. This method allows the disk to "float" and seek its center in the seat. Uniform sealing is accomplished and external stem fasteners are eliminated. This method of assembly is advantageous in the case of covered disks and in corrosive applications.

In order for the disk to be held in the proper position, the stem must extend beyond the bottom of the disk and fit into a bushing in the bottom of the valve body. One or two similar bushings are along the upper portion of the stem as well. These bushings must be either resistant to the media being handled or sealed so that the corrosive media cannot come into contact with them.

Stem seals are accomplished either with packing in a conventional stuffing box or by means of O-ring seals. Some valve manufacturers, particularly those specializing in the handling of corrosive materials, place a stem seal on the inside of the valve so that no material being handled by the valve can come into contact with the valve stem. If a stuffing box or external O-ring is employed, the fluid passing through the valve will come into contact with the valve stem.

Typical applications of Butterfly valves

A Butterfly valve can be used in many different fluid services and they perform well in slurry applications. The following are some typical applications of Butterfly valves:

• Cooling water, air, gases, fire protection etc.
• Slurry and similar services
• Vacuum service
• High-pressure and high-temperature water and steam services

Advantages of Butterfly valves

• Compact design requires considerably less space, compared to other valves
• Light in weight
• Quick operation requires less time to open or close
• Available in very large sizes
• Low-pressure drop and high-pressure recovery

Disadvantages of Butterfly valves

• Throttling service is limited to low differential pressure
• Cavitation and choked flow are two potential concerns
• Disc movement is unguided and affected by flow turbulence

Product Details:

This is a new range of 4Matic butterfly valves of the double eccentricity type with "bubble tight" seal, designed for heavy duty service, especially as regards shipbuilding and petrochemical sectors.

Above all it is ideal for shut-off and/or flow control of aggressive fluids or gases.

ductile iron; carbon steel ; stainless steel aluminium bronze or electrically.

Such valves are manufactured according to the most up-to date design criteria, thereby offering maximum guarantee of correct operation and minimum maintenance.

A Butterfly valve can be used in many different fluid services and they perform well in slurry applications. The following are some typical applications of Butterfly valves:

• Cooling water, air, gases, fire protection etc.
• Slurry and similar services
• Vacuum service
• High-pressure and high-temperature water and steam services

Light in weight

• Quick operation requires less time to open or close
• Available in very large sizes
• Low-pressure drop and high-pressure recovery

Installation instructions from a supplier of Butterfly valves:

The valve is designed for using between all types of Flat or Raised Face flanges.
DO NOT USE FLANGE GASKETS. The Butterfly valve design liminates the need for gaskets. For proper installation, the space between flanges must be sufficient to permit valve insertion without disturbing the flange seal. Note that the diac sealing edge is in line with the flat of the shaft. Rotate the stem to position the disc within the body, place the valve between flanges and hand-tighten the bolts.
SLOWLY OPEN the valve counterclockwise to check for adequate disc clearance.
RETURN THE DISC TO 10% OPEN POSITION & cross tighten all bolts, again check for adequate disc clearance.

 The majority of all problems with Butterfly valves in the field are directly related to poor installation procedures. For this reason, it is wise to consider best-practice when laying out pipe-work and installing the valve itself.

The seat in a resilient-seated Butterfly valve usually extends around to both faces of the valve. As a result, no gaskets are required as these seats serve the function of a gasket. The seat material which extends past the face is compressed during installation and flows toward the centre of the valve seat. Any change in this configuration due to improper installation directly affects the pressure rating and seating/unseating torques.

Unlike most valve types, the Butterfly valve's disc actually extends beyond the face of the valve body at given angles of opening (say, 30° or more) when installed between flanges. Therefore, it is very important before installation to ensure that the disc is able to freely turn and enter the flanges and pipe-work.

Store indoors, preferably with ambient temperatures between 5°C and 30°C.

• Open and close the valves every 3 months.
• Ship and store valves so that no heavy loads are applied to the bodies.

Valve Location

• Butterfly valves should be installed if possible a minimum of 6 pipe diameters from other line elements, i.e. elbows, pumps, valves, etc. Sometimes this is not feasible, but it is important to achieve as much distance as possible.
• Where the Butterfly valve is connected to a check valve or pump, keep enough space between them to ensure the disc does not interfere with the adjacent equipment.

Valve Orientation

As a rule of thumb, Butterfly valves be installed with the stem in the vertical position with the actuator mounted vertically directly above it, however, there are some applications where the stem should be horizontal. The .pdf file below tells you why the stem somtimes must be positioned horizontally.

Product Details:

Lined Butterfly Valve

• Extensive field research and engineering have developed this state-of-the-art design which provides excellent shutoff protection (bubble-tight shutoff) and high Cv values.
• The resilient seated butterfly valve is crafted in a variety of materials such as PTFE, PFA, Stainless Steel and special alloys to fit a wide range of customer requirements. Our products, precision manufacturing and exceptional quality remain the keys to a proven record of long service life.
• Seal Capsule
• (Secondary Seal) This seal capsule fully isolates the valve body and stem from the line media. The Seal Capsule is made of a virgin PTFE enclosing the internal energizer. The capsule fits into grooves in the upper and lower disc hubs. When compressed between the disc and seat during assembly, the capsule becomes energized, exerting both upward and downward pressure on disc and seat surfaces.
• Kyrgyzstan, Nepal, Bhutan, Laos, Myanmar, Thailand, Vietnam, Spratley, Brunei, Malaysia, Combodia, Singapore, Indonesia, Est Timor, Australia, Niue, Samoa, Wallis and futuna, Fiji, New Caledonia, Samoa, Tokelau, Kiribati, Tuvalu, Solomon, Nauru, Papua New Gunea, Micronesia, Palau, Micronesia, Guam, Marshall, Northern Maniana, Philippines, Taiwan, South Korea, North Korea, Japan, Sri Lanka, Maldives, Afghanistan, Uzbekistan, Tajikistan, Kazakhstan, Mongolia, Russia.Indonesia, Malaysia, South Africa, Ghana, Nigeria, Senegal, Egypt, Turkey, Benin, Burkina Faso, Cape Verde, Cote d'Ivoire (Ivory Coast), Gambiav, Guinea, Guinea-Bissau, Liberia, Mali, Mauritania, Niger, Saint Helena, Sierra Leone, Sao Tome and Principe
• Togo, Algeria, Libya, Morocco, Tunisia, South Sudan, Sudan, Western Sahara (Territory).

Product Details:

4Matic offers Damper Butterfly Valves, Manual Gear Operated Valves, Electrical Actuator Operated Damper Butterfly Valve, and Pneumatic Operated Damper Butterfly Valve. 

Product Details:

Size also available from 50 mm to 2200mm To cater the variegated needs of our esteemed customers, we are highly engaged in offering a wide array of Wafer Type Resilient Seated Butterfly Valve.

Details:

• Integrally Moulded seat liner on the body, which ensures excellent dimensional stability & guaranteed seat tightness
• Seat Liner Extending on the contact faces ensures perfect sealing and eliminates the need for separate flange gaskets.
• Narrow land disc ensures perfect sealing with least operating torque requirement.
• A fully universal body design ensures fitting of the valve between companion flanges of all popular standards (Viz: ANSI, BS, DIN, JIS, Is etc.)
• The notch disc & band lever ensures locking of the valve in 8 intermediate positions in addition to close and open position. Hand lever can be locked through pad lever.
• A truly line size body bone to ensure maximum flow capacity with the lowest pressure drop.

Technical Description For Resilient Seated Butterfly Valve:

• SEAT : NITRILE / EPDM / VITON / HYPALON / SILICON / NEOPRENE
• SHAFT : AISI 410 / AISI 304 / AISI 316 / AISI 316L
• BEARRING BUSH : METAL BUSH PTFE COATED
• BUSH : PTFE (TEFLON)
• 'O'- RING : NITRILE / EPDM / VITON / HYPALON / SILICON / NEOPRENE
• DOWEL PIN : M.S / AISI 410 / AISI 304 / AISI 316 / AISI 316L
• BOTTOM PIN : AISI 410 / AISI 304 / AISI 316 / AISI 316L

BODY:

• ASTM A 126 GRADE B (GRY IRON)
• ASTM A 216 GRADE WCB (CAST STEEL)
• ASTM A 536 GRADE 65-45-12 (DUCTILE IRON)
• ASTM A 351 GRADE CF8/CF8M/CF3M/CD4MCuN

DISC:

• ASTM A 126 GRADE B (GRY IRON) POWDER COATED
• ASTM A 216 GRADE WCB (CAST STEEL) POWDER COATED
• ASTM A 536 GRADE 65-45-12 (DUCTILE IRON) POWDER COATED
• ASTM A 351 GRADE CF8/CF8M/CF3M/CD4MCuN

To cater the variegated needs of our esteemed customers, we are highly engaged in offering a wide array of Wafer Type Resilient Seated Butterfly Valve.

Details:

• Integrally Moulded seat liner on the body, which ensures excellent dimensional stability & guaranteed seat tightness
• Seat Liner Extending on the contact faces ensures perfect sealing and eliminates the need for separate flange gaskets.
• Narrow land disc ensures perfect sealing with least operating torque requirement.
• A fully universal body design ensures fitting of the valve between companion flanges of all popular standards (Viz: ANSI, BS, DIN, JIS, Is etc.)
• The notch disc & band lever ensures locking of the valve in 8 intermediate positions in addition to close and open position. Hand lever can be locked through pad lever.
• A truly line size body bone to ensure maximum flow capacity with the lowest pressure drop.

Technical Description For Resilient Seated Butterfly Valve:

• SEAT : NITRILE / EPDM / VITON / HYPALON / SILICON / NEOPRENE
• SHAFT : AISI 410 / AISI 304 / AISI 316 / AISI 316L
• BEARRING BUSH : METAL BUSH PTFE COATED
• BUSH : PTFE (TEFLON)
• 'O'- RING : NITRILE / EPDM / VITON / HYPALON / SILICON / NEOPRENE
• DOWEL PIN : M.S / AISI 410 / AISI 304 / AISI 316 / AISI 316L
• BOTTOM PIN : AISI 410 / AISI 304 / AISI 316 / AISI 316L

BODY:

• ASTM A 126 GRADE B (GRY IRON)
• ASTM A 216 GRADE WCB (CAST STEEL)
• ASTM A 536 GRADE 65-45-12 (DUCTILE IRON)
• ASTM A 351 GRADE CF8/CF8M/CF3M/CD4MCuN

DISC:

• ASTM A 126 GRADE B (GRY IRON) POWDER COATED
• ASTM A 216 GRADE WCB (CAST STEEL) POWDER COATED
• ASTM A 536 GRADE 65-45-12 (DUCTILE IRON) POWDER COATED
• ASTM A 351 GRADE CF8/CF8M/CF3M/CD4MCuN

Product Details:

The butterfly valve has been in use since the late 18th century. James Watt used a butterfly valve in his steam engine prototypes. With advances in material manufacturing and technology, butterfly valves could be made smaller and withstand more-extreme temperatures. After World War II, synthetic rubbers were used in the sealer members, allowing the butterfly valve to be used in many more industries. In 1969 James E. Hemphill patented an improvement to the butterfly valve, reducing the hydrodynamic torque needed to change the output of the valve.

Principle of operation
Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they cost less than other valve designs, and are lighter weight so they need less support. The disc is positioned in the center of the pipe. A rod passes through the disc to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, so it induces a pressure drop, even when open.

A butterfly valve is from a family of valves called quarter-turn valves. In operation, the valve is fully open or closed when the disc is rotated a quarter turn. The "butterfly" is a metal disc mounted on a solid stem. When the valve is closed, the disc is turned so that it completely blocks off the passageway. When the valve is fully open, the disc is rotated a quarter turn so that it allows an almost unrestricted passage of the fluid. The valve may also be opened incrementally to throttle flow.

There are different kinds of butterfly valves, each adapted for different pressures and different usage. The zero-offset butterfly valve, which uses the flexibility of rubber, has the lowest pressure rating. The high-performance double offset butterfly valve, used in slightly higher-pressure systems, is offset from the centre line of the disc seat and body seal (offset one), and the centre line of the bore (offset two). This creates a cam action during operation to lift the seat out of the seal resulting in less friction than is created in the zero offset design and decreases its tendency to wear. The valve best suited for high-pressure systems is the triple offset butterfly valve. In this valve the disc seat contact axis is offset, which acts to virtually eliminate sliding contact between disc and seat. In the case of triple offset valves the seat is made of metal so that it can be machined such as to achieve a bubble tight shut-off when in contact with the disc.

Types
Concentric butterfly valves – this type of valve has a resilient rubber seat with a metal disc.

Doubly-eccentric butterfly valves (high-performance butterfly valves or double-offset butterfly valves) – different type of materials is used for seat and disc.

Triply-eccentric butterfly valves (triple-offset butterfly valves) – the seats are either laminated or solid metal seat design.

Wafer-style butterfly valve
The wafer style butterfly valve is designed to maintain a seal against bi-directional pressure differential to prevent any backflow in systems designed for unidirectional flow. It accomplishes this with a tightly fitting seal; i.e., gasket, o-ring, precision machined, and a flat valve face on the upstream and downstream sides of the valve.

Lug-style butterfly valve
Lug-style valves have threaded inserts at both sides of the valve body. This allows them to be installed into a system using two sets of bolts and no nuts. The valve is installed between two flanges using a separate set of bolts for each flange. This setup permits either side of the piping system to be disconnected without disturbing the other side.

Product Details:

4Matic offers Electric Actuator Operated Valve.
Types of Butterfly valves

Butterfly valves has a short circular body, a round disc, metal-to-metal or soft seats, top and bottom shaft bearings, and a stuffing box. The construction of a Butterfly valve body varies. A commonly used design is the wafer type that fits between two flanges. Another type, the lug wafer design, is held in place between two flanges by bolts that join the two flanges and pass through holes in the valve's outer casing. Butterfly valves are even available with flanged, threaded and butt welding ends, but they are not often applied.

Butterfly valves possess many advantages over gate, globe, plug, and ball valves, especially for large valve applications. Savings in weight, space, and cost are the most obvious advantages. The maintenance costs are usually low because there are a minimal number of moving parts and there are no pockets to trap fluids.

Butterfly valves are especially well-suited for the handling of large flows of liquids or gases atrelatively low pressures and for the handling of slurries or liquids with large amounts ofsuspended solids.

Butterfly valves are built on the principle of a pipe damper. The flow control element is a disk of approximately the same diameter as the inside diameter of the adjoining pipe, which rotates on either a vertical or horizontal axis. When the disk lies parallel to the piping run, the valve is fully opened. When the disk approaches the perpendicular position, the valve is shut. Intermediate positions, for throttling purposes, can be secured in place by handle-locking devices.

Product Details:

• Size Range :1.1/2" - 80" (40 - 2000mm)

• Body Materials:Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel

• Temperature Range:-62degreeF to 500degreeF (-52degreeC to 260degreeC)

• Stem Materials - Stainless Steel

• Pressure Ratings:ASME Class 150, 300, 600, EN 1092, PN10, PN16, PN25, PN40, PN63, PN100

• Seat: MaterialsNBR,BUNA-N, EPDM,PTFE, FKM,VITON Polyurethane with Resilient Energizer
• Shutoff RatingZero Leakage,Bidirectional Bubble-tight

• Disc Materials: Ductile Iron, Aluminum Bronze, Stainless Steel,Duplex Stainless Steel, Super Austenitic Stainless Steel, Hastelloy, Monel"

• Body Style: Wafer, Lug and Double Flanged

• Design Standard:ASME B16.34, ASME VIII , API 609 Category A,IS:13095 / BS EN 593"

• Testing Standard: API 598,MSS SP-61, API 598, EN 12266-1

• Flange Drilling: ASME B16.5, EN 1092,ASME B16.1 Class 125, ASME B16.5 Class 150, ASME B16.47

• Testing Standard:API 598

• Certifications: Bureau Veritas, CE/PED, (CCS), DNV,"Bureau Veritas, CE/PED, DNV, Fire-Test Standard API 607 6th Edition, NSF/ANSI 61-2008 (Potable Water), SIL"

• Face to Face: ISO 5752 , API 609 Category A, EN 558 Series 20

• Fugitive Emissions: ISO 15848-1, API 641

• Applications: Wastewater, Seawater, Water, other liquids and gases

• Operation: Hand lever,Worm gear,Pneumatic / Electric actuator operation-optional

Product Details:

• Butterfly valves intended for low pressure gas lines and air lines. The lightweight construction with the narrow wafer body enables easy fitment of these valves in ducts, manifolds and exhaust lines without additional support or strengthening of pipe lines.
• These valves are primarily intended for low – pressure large volume gas / air flow control applications. The absence of seat substantially reduces the valve operating torque requirements and makes the valve very effective for flow control / regulation duties. This is an ideal choice for furnace air flow and combustion control applications.
• Even though the body is designed for a maximum pressure of 2.5 bar the maximum shut off pressure is limited to 0.5 bar only .The disc flap is held in position by a stub shaft with an axial locking arrangement provided on the top shaft. The top shaft sealing is through stuffing box type gland sealing arrangement, which is field adjustable.
• Damper valves can be made from different types of steel — most commonly carbonized, galvanized, or stainless. They can also be constructed from plastic and/or aluminum. There is also a wide variety of shapes and sizes of damper valves available to suit different applications across a broad range of industries. From the model that keeps smoggy outside air from entering the cabin of a passenger car to the heavy duty industrial version used to prevent chemical plant explosions, damper valves serve the vital purpose of keeping air systems clean, safe, and functioning properly. Two types of damper valves commonly used in the oil, gas, and chemical industries are blade style dampers and butterfly style dampers.

Blade Dampers

• Blade dampers, or louvered dampers, rely on slats or “blades” to dictate the direction of air or gas travel. The slats are stacked horizontally and can be adjusted to restrict airflow to a certain area. This way, air can be directed out of a facility while simultaneously preventing outside air from entering. There are many industrial applications for blade dampers and they are commonly used in manufacturing a wide variety of materials including steel, cement, chemicals, iron, pharmaceuticals, and food products.

Butterfly Dampers

• Butterfly dampers are usually lighter and cheaper than blade style dampers and have only one slat (sometimes called a “wafer””) as opposed to the multi-slat configuration of the louvered style valve. They control the flow of air or gas using a pipe system. A circular metal piece rotates on a vertical axis, opening and closing to start or stop the flow. This kind of valve is often used in safety applications such as fire prevention and environmental compliance systems. Such butterfly dampers can be outfitted with sensors that will automatically close and stop incoming air flow if smoke or poisonous gas is detected. Fire prevention damper valves detect rising heat levels and subsequently close off to minimize the spreading of fire and smoke.
• Kyrgyzstan, Nepal, Bhutan, Laos, Myanmar, Thailand, Vietnam, Spratley, Brunei, Malaysia, Combodia, Singapore, Indonesia, Est Timor, Australia, Niue, Samoa, Wallis and futuna, Fiji, New Caledonia, Samoa, Tokelau, Kiribati, Tuvalu, Solomon, Nauru, Papua New Gunea, Micronesia, Palau, Micronesia, Guam, Marshall, Northern Maniana, Philippines, Taiwan, South Korea, North Korea, Japan, Sri Lanka, Maldives, Afghanistan, Uzbekistan, Tajikistan, Kazakhstan, Mongolia, Russia.
• Indonesia, Malaysia, South Africa, Ghana, Nigeria, Senegal, Egypt, Turkey, Benin, Burkina Faso, Cape Verde, Cote d'Ivoire (Ivory Coast), Gambiav, Guinea, Guinea-Bissau, Liberia, Mali, Mauritania, Niger, Saint Helena, Sierra Leone, Sao Tome and Principe
• Togo, Algeria, Libya, Morocco, Tunisia, South Sudan, Sudan, Western Sahara (Territory).

Product Details:

Product Overview

 

·  Flanged connections sizes 3”-144”

·  Mechanical joint end connections in sizes 4”- 48”

·  Wafer design 4" - 12"

·  150B and 250B AWWA classes

· Seat on disc design allows for field adjustment/replacement without the need for special tools or epoxies

·  Suitable for Water/Wastewater, Power, Process Industries - Air and Liquid Applications

·  Shut-Off Service, Modulating Service, Buried/Plant Service, Pump Control, Flow Control, Isolation

·  Manufactured under a certified ISO 9001 quality system

Features

·  Body - Cast Iron/Ductile Iron Construction with ANSI Flanges, Mechanical Joint Ends or ANSI/ISO Wafer

·  Body Seat - 360^o Uninterrupted Ring of SS316 stainless steel

·  Disc - Ductile Iron to withstand impacts from flow and pressure transients

·  Resilient Seat - Design proven over 30 years. seat on disc, easy field adjustable/replaceable in all sizes

· Shaft - AWWA C504 Diameters. Through-Shaft for 3”-24” sizes. Available in larger sizes.

·  Tangential Taper Pins - design for greatest strength and rigidity

·  Shaft Seal - V-Type packing for self-adjusting and wear compensating

·  Sleeve Bearings - Self-Lubricated for low friction and long life

·  Thrust Bearing - Bronze bearings to precisely center the disc

Product Details:

SS High Performance Butterfly Valve

Design and Manufacture: API609, ASME B16.34

Face to face (end to end): API 609, ASME B16.10

Flanged connection: ANSI B16.5

Butt welded end: ANSI B16.25

Test and inspection: API 598

Wall thickness: API 600

All valves are designed to comply with the requirements of ASME B16.34, and the ASME as well as customers' requirements as applicable.

Body Material:

A216-WCB (Carbon Steel), A217-WC6 (1-1/4Cr-1/2Mo), A217-WC9 (2-1⁄4Cr–1Mo), A217-C5 (5Cr–1⁄2Mo), A217-C12 (9Cr–1Mo), A352-LCB (Carbon Steel), A352-LCC (Carbon Steel), A351-CF8M (18Cr–9Ni–2Mo), A351-CF3M (18Cr–9Ni–2Mo)

Actuators:

Worm Gear, Electric, Cylinder, Pneumatic, Hydraulic, Handwheel, Chain wheels

Quality Assurance (QA):

Every step from procurement through production, welding, assembly, testing, and packaging is in accordance with quality programs and procedures (ASME Section III manual and ISO 9001 manual).

Quality Control (QC):

The QC is responsible for all aspects of quality, from receiving of material to control of machining, welding, nondestructive examination, assembly, pressure testing, cleaning, painting, and packaging.

Pressure Testing:

Each valve is pressure tested in accordance with ASME B16.34, API 598, or special customers' requirements as applicable.

Product Details:

• Body Available in Wafer, Flanged,
• Size available upto 2000mm
• Body Seat 360° uninterrupted body seat with no shaft penetration insures leak free performance. Type 316 Stainless Steel provides long life and corrosion free mating surface for resilient seat.
• Ductile Iron provides strength and rigidity to withstand dynamic forces from flow and pressure transients. The added strength allows the disc design to have a smaller cross section providing improved headloss characteristic.
• Rubber Seat Special formulated elastomers for chemical resistance and long cycle life. The 360° resilient seat is uninterrupted for positive seating.
• Shaft Stainless Steel shafts meet AWWA C504 diameter requirements. Through-shafts provided standard on sizes 3”- 24” and available on 30” and larger when specified.
• Tangential Taper Pins: Stainless Steel Taper Pins with lock nut and O-ring seal utilize tangential forces of the taper pin and lock nut to provide the most secure method available of locking the disc to the shaft.
• Retention System proven dependability Seating System is easily adjusted and field replaceable. All seat hardware is Type 316 Stainless Steel.
• The traveling nut design provides characterized closure during the last half of travel. Exclusive externally adjustable stops are rated to 450 ftlbs of input torque. Standard FA10 motor mounting flange provides ease of automation.
• Shaft Seal is a self-adjusting/wear compensating V-Type packing. Packing is easily replaced without removal of the valve from the line.
• Sleeve Bearings Low friction bearings are self-lubricating and non-corrosive, for a long, trouble-free life.
• Thrust Bearing Factory-set bronze thrust bearing assures proper centering of valve disc. Thrust bearings are field adjustable in sizes 30” and larger.

Product Details:

4Maitc Aluminum Bronze resilient seated butterfly valve is specifically designed for onshore and offshore fire protection where the applicable The series  designed to withstand high line velocities and pressure.

Size Range

2 - 12" (50 - 300mm)

Body Materials

Ductile Iron, Carbon Steel, Nickel Aluminum Bronze

Temperature Range

0F to 212F (-18C to 100C)

Stem Materials

Stainless Steel, 17-4PH Stainless Steel, Monel K500

Pressure Ratings

285 psi (20 Bar)

Seat Materials

Bonded BUNA-N

Shutoff Rating

Bidirectional Bubble-tight

Disc Materials

316 Stainless Steel, Monel K500, Nickel Aluminum Bronze

Body Style

Lug

Flange Drilling

PN10, PN16, PN25, ASME Class 150

Testing Standard

API 598, EN 12266-1

Certifications

D.O.T. 54

Face to Face

API 609 Category A, EN 558 Series 20

Applications

High Pressure Industrial and Marine Dead-End service,
On-Shore and Off-Shore Fire Protection