Butterfly Valve Manufacturers / Suppliers

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Table of Contant

• -----> Wafer Type Butterfly Valves
• -----> Lug Type Butterfly Valves
• -----> High Performance Butterfly Valves
• -----> Seatless Butterfly Damper
• -----> Double Flanged Centric Disc Butterfly Valves
• -----> Double Flanged Valves
• -----> Stainless Steel Butterfly Valve
• -----> Alloy Steel Butterfly Valve
• -----> Carbon Steel Butterfly Valve
• -----> Hastelloy Butterfly Valve
• -----> Alloy 20 Butterfly Valve
• -----> Nickel 200/201 Butterfly Valve
• -----> Monel® Butterfly Valve
• -----> Duplex Steel Butterfly Valve
• -----> 254 Smo Butterfly Valve
• -----> 904l Stainless Steel Butterfly Valve
• -----> Inconel Butterfly Valve
• -----> Titanium Butterfly Valve
• -----> Brass Butterfly Valve
• -----> Copper Butterfly Valve
• -----> Brand Butterfly Valves
• -----> Project Reference
• -----> Butterfly Valves price
• -----> We Export
• -----> Butterfly Valves Ready Stock Available
• -----> Enquiry For Butterfly Valve
• -----> Contact for Butterfly Valve

 

BUTTERFLY VALVE MANUFACTURERS IN INDIA

A Butterfly Valve is a valve which can be used for isolating or regulating flow. The closing mechanism takes the form of a disc. Operation is similar to that of a Ball Valve, which allows for quick shut off. Butterfly Valves are generally favored because they are lower in cost to other valve designs as well as being lighter in weight, meaning less support is required.

Citizen Metal Wafer Type Butterfly Valve have been developed with extensive application, design and manufacturing expertise.Our High Performance Slim-Seal, Concentric design Butterfly Valves are reliable, maintenance free shutoff with permanently gas-tight seal with an integrally moulded or replaceable elastomer body liner. In our Butterfly Valve Wafer Body Design we are providing two nos. flange locating holes for sizes up to 12 and from size 14 and above 04 nos. for easy alignment of valve during installation. Flange locating hole confirm to as per ANSI B 16.5 Class 125 & Class 150 / BS 10 Table D, E, F / PN 6, PN 10, PN 16 or other international standard. We are also providing  High performance Butterfly Valves with Full-Lugs type body design with raised faces and flanged ends connection, Double Flanged Centric Disc Rubber lined Butterfly Valves, Seatless Butterfly Dampers.

Our Slim Seal design Butterfly Valves body seat mechanism have a very low torque, tight shut off with zero leakage, compact actuator selection, and long life smooth easy operation. The slim-seal, center disc design valves are widely available with different combination of body, seat & disc materials to satisfy the need of most industrial application.

Specifications of Butterfly Valves

• Valve Design : Wafer Type Butterfly Valves/ Lug Type Butterfly Valves/ High Performance Butterfly Valves / Seatless Butterfly Damper / Double Flanged Centric Disc Butterfly Valves / Double Flanged Valves
• Operations : Lever Operated / Gear Operated / Electrical / Pneumatic / Hydraulic Actuator
• Mounting Pad /Top Flange Drilling  : As per ISO 5211 Part II

Butterfly Valve – Specifications

DESIGN	Wafer
TYPE	Soft Seated Offset- Series 230 Metal To Metal- Series 240 Sleeved- Series 250
SIZE	50 to 900 mm (2” to 36”)
RATING	150#
FLOW CHARACTERISTIC.	Throttling, On-Off.
MATERIALS BODY	Cast Iron, Carbon Steel, Stainless Steel etc.
VANE	Carbon Steel ,Stainless Steel.
BODY SLEEVE	Neoprene, Nitrile, PTFE, EPDM, Silicon, Butyl, Viton etc.
SOFT SEAT	PTFE.
GLAND PACKING	PTFE V Rings upto 180° C Grafoil upto 400° C.
ACTUATOR FORM	Diaphragm, Rotary, Electric.
ACTUATOR TYPE	Scotch
DIAPHRAGM	Nitrile / Neoprene
SPRING RANGE	3 – 15 Psig (0.2 – 1.0 Kg/cm²) 6 – 30 Psig (0.4 – 2.0 Kg/cm²)
AIR SUPPLY	20 – 35 Psig (1.4 – 2.5 Kg/cm²)
AIR CONNECTION	1/ 4” or 1/ 2” NPT
ACCESSORIES OPTIONAL	Valve Positioner – Pneumatic, Electro Pneumatic, Smart, Airset, Solenoid Valve, Air Lock, Volume Booster Limit Switches- Micro/Proximity with Dome Indicator. Top or Side Mounted Handwheel Limit Stops

Butterfly Valve – Design Features

• Compact & simple design, low cost and maintenance free.
• Very high Cv to body size ratio.
• Reliable smooth operation and flow control with assured product quality.
• Bubble tight shut off, leakage Class – VI.
• Rangeability of 33:1 in the control range.
• Flow characteristic throttling for modulating duty.
• Choice of Replaceable Linear/Moulded Lining.

Quality And Performance Guarantee

• Produced with Quality Systems accredited to ISO 9001: 2008 by Bureau Veritas.
• Full material certification available for all major component Parts.
• Full guarantee on design and Performance.
• All testing are performed to the requirements of ANSI B16.34.

Salient Features of Butterfly Valves

• Concentric, Slim-Seal Design
• Greater Sealing Capacity
• Soft Seat Design and Wafer Design
• Lower Torque with any fluid
• Permanently tight closure
• Bi-Directional Valve
• Optimum operation under Vacuum Condition
• Suitable for On-off as well as Throttling Service
• Materials for almost all media
• Short Face To Face Dimension
• Long Service Life, Smooth and Easy Operation
• Maintenance Free Version
• Less Weight, Easy To Install

Special Options for Butterfly Valves

• Off Set Disc Design Butterfly Valve for high pressure & temperature service.
• Moulded / Replaceable Seat option
• Gear / Pneumatic Rotary Actuator Operated
• P.T.F.E. (PFA/FEP) Lined Butterfly Valve
• Flanged End, Butterfly Valve
• Damper Type Butterfly Valve for High Temperature Air Service
• Off Set Disc Design Butterfly Valve for high pressure & temperature service
• Tailor Made Valve

Application

• Water Treatment Plant
• Paper Industry
• Sugar Industry
• Breweries
• Chemical Industry
• Waste Effluent Treatment Plant
• Drilling Rigs
• Gas Plant
• Cooling Water Circulation
• Heating & Air Conditioning
• Pneumatic Conveyors
• Compressed Air

Wafer Type Butterfly Valves

General Purpose Rubber Lined Butterfly Valves

Citizen Metal Butterfly Valves are designed to meet the demanding requirements of the general utility valve market with the HVAC segment in particular. Our 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.
The body liner which also functions as the soft seat, comes in either a replaceable version or an integrally molded (bonded) version and offers 100 % bi-directional sealing against vacuum to rated pressure of PN 10 or PN 16.The wafer style body has universal design to fit between pipe flanges of almost all popular flange standards.
Our Butterfly Valves are generally supplied with manual hand lever or gear operated, depending on valve size. We are also offering Butterfly Valves with either Pneumatic, Hydraulic or Electrical actuator operated for automation as per clients requirement.

WAFER TYPE BUTTERFLY VALVE PN16	INVESTMENT CASTING WAFER TYPE BUTTERFLY VALVE	WAFER TYPE BUTTERFLY VALVE PN16
WAFER TYPE EXTENDED STEM (2500MM) NYLON COATED DISC BUTTERFLY VALVE	NYLON COATED DISC BUTTERFLY VALVE AS PER ISO MOUTING PAD EASY TO MOUNT ACTUATOR, GEAR BOX	WAFER TYPE GEAR OPERATED BUTTERFLY VALVE

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Technical Specifications

• Valve Type : Centric Disc Design Butterfly valve with a single piece Rubber lined body
• Body Type : Short Wafer
• Seat Type : Replaceable for sizes 50 NB to 600 NB , PN 10 rating. Bonded seat for sizes 40 to 1200 NB for all applicable ratings.
• End Connection : Wafer sandwiched
• Size Range : 40 NB to 1200 NB
• Pressure Rating : 40 NB to 600 NB-PN16 (maximum) , 650 NB to 1200 NB-PN10 (maximum)
• Operating Temperature Range : -500 C to 2000 C (depending on MOC)
• Seat Leakage : Tight Shut Off
• Operation : Lever / Gear operated, Pneumatic/ Hydraulic/ Electrical Actuator operated

Conformity Codes and Standard

Design and Manufacturing Standard : API 609 category A/BS 5155/MSS SP-67
Testing Standard : BS 6755-I / API 598
Face to Face : Short wafer as per ISO 5752 Tab 5 & API 609 category A
Top Flange Drilling : ISO 5211 part II
Flange standard conformity : ANSI 150, DIN PN6 / PN10 /PN16 , JIS 5K / 10K / 16K BS 10 Tab D & E, IS 6392 NP 0.6 / 1.0 / 1.6 For sizes  650 ANSI B 16.47 Class 150 Series A / BS 3293 Class 150 and Series B / API 605

Material Of Construction

1. Body : CI / SGI / WCB / CF8 / CF8M
2. Disc : SGI / WCB / CF8 / CF8M
3. Seat : EPDM / Viton / Nitrile / Neoprene / Hypalon / Silicon
4. Shaft : AISI410 / SS 316 SH

Standard Test 

1. Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.
2. Seat Test: 1.5 times the working pressure with water.
3. Function / Operation Test: At the time of final inspection, each valve and its actuator (Flow-Control Lever / Gear / Pneumatic Actuator), under goes a complete operating test (Open/Close). This test carried out without pressure and at ambient temperature. It ensures the correct operation of the valve / actuator assembly with accessories such as solenoid valve, limit switches, air filter regulator etc.
4. Special Test: On request, any other test can be carried out according to special instruction by client.

Key Features Of Wafer Type Butterfly Valve

• Unique triple sealing system for shaft sealing, eliminates any fugitive emission or secondary leakage.
• Self lubricated PTFE lined bearings for both drive end and non-drive end shaft ensures minimum bearing friction torque.
• Seat liner extending on to the flange contact faces, eliminates the need for separate flange gaskets during installation.
• Controlled compression of the gasket face to offer optimum sealing & prevent gasket face crushing failure.
• Bi-directional valve with tight shut off sealing capability to hold vacuum to rated pressure in either direction.
• Excellent adaptability for actuated operation through standardized top flange mounting dimensions for actuator fitment.
• Suitability for ON /OFF as well as throttling duties.
• Choice of seat and disc materials to suit media conditions and service requirements.
• Adaptability to fit between companion flanges of all popular flange standards for the wafer style body.
• Possibility of lower seat rating to obtain reduced operating torque and extended seat life for low operating pressures.

Lug Type Butterfly Valves

General Purpose Rubber Lined Butterfly Valves

Citizen Metal Lug Type 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 a centric disc construction and is available in wafer lugged style body pattern to ensure precise location in pipeline.
The body liner which also functions as the soft seat, come either in a replaceable version or an integrally molded (bonded) version and offers 100 % bi-directional sealing against vacuum to rated pressures of PN 10 or PN 16. The lugged version with threaded holes can be used as end of line valves or terminal end valves.
Our Butterfly Valves are generally supplied with manual hand lever or gear operated, depending on valve size. We are also offering Butterfly Valves with either Pneumatic, Hydraulic or Electrical actuator operated for automation as per clients requirement.

Standard Test 

1. Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.
2. Seat Test: 1.5 times the working pressure with water.
3. Function / Operation Test: At the time of final inspection, each valve and its actuator (Flow-Control Lever / Gear / Pneumatic Actuator), under goes a complete operating test (Open/Close). This test carried out without pressure and at ambient temperature. It ensures the correct operation of the valve / actuator assembly with accessories such as solenoid valve, limit switches, air filter regulator etc.
4. Special Test: On request, any other test can be carried out according to special instruction by client.

LUG TYPE BUTTERFLY VALVE

LUG TYPE GEAR OPERATED BUTTERFLY VALVE

Technical Specifications

• Valve Type : Centric Disc Design Butterfly valve with a single piece Rubber lined body
• Body Type :  Wafer Lugged
• Seat Type : Replaceable for sizes 50 NB to 600 NB ,  PN 10 rating. Bonded seat for sizes 40 to 1200 NB for all applicable ratings.
• End Connection : Wafer Lugged
• Size Range : 40 NB to 1200 NB
• Pressure Rating : 40 NB to 600 NB-PN16 (maximum) , 650 NB to 1200 NB-PN10 (maximum)
• Operating Temperature Range : -500 C to 2000 C (depending on MOC)
• Seat Leakage : Tight Shut Off
• Operation : Lever / Gear operated, Pneumatic/ Hydraulic/ Electrical Actuator operated

Conformity Codes and Standard

Design and Manufacturing Standard : API 609 category A/BS 5155/MSS SP-67
Testing Standard : BS 6755-I / API 598
Face to Face : Short wafer lugged as per ISO 5752 Tab 5 & API 609 category A
Top Flange Drilling : ISO 5211 part II
Flange standard conformity : ANSI 150, DIN PN6 / PN10 /PN16 , JIS 5K / 10K / 16K BS 10 Tab D & E, IS 6392 NP 0.6 / 1.0 / 1.6 For sizes   650 ANSI B 16.47 Class 150 Series A / BS 3293 Class 150 and Series B / API 605

Material Of Construction

1. Body : CI / SGI / WCB / CF8 / CF8M
2. Disc : SGI / WCB / CF8 / CF8M
3. Seat : EPDM / Viton / Nitrile / Neoprene / Hypalon / Silicon
4. Shaft : AISI410 / SS 316 SH

Key Features Of Lug Type Butterfly Valve

• Unique triple sealing system for shaft sealing, eliminates any fugitive emission or secondary leakage.
• Self  lubricated PTFE lined bearings for both drive end and non-drive end shaft ensures minimum bearing friction torque.
• Seat liner extending on to the flange contact faces, eliminates the need for separate flange gaskets during installation.
• Controlled compression of the gasket face to offer optimum sealing & prevent gasket face crushing failure.
• Bi-directional valve with tight shut off sealing capability to hold vacuum to rated pressure in either direction.
• Excellent adaptability for actuated operation through standardised top flange mounting dimensions for actuator fitment.
• Suitability for ON /OFF as well as throttling duties.
• Choice of seat and disc materials to suit media conditions and service requirements.
• The lugged wafer pattern ensures precise self  centering of valve between mating flanges.
• Possibility of lower seat rating to obtain reduced operating torque and extended seat life for low operating pressures.

High Performance Butterfly Valves

The ultimate in high performance Butterfly valves, Citizen Metal High Performance Butterfly Valves series incorporates the ‘state of the art’ valve technology to out perform the competition. The double offset disc design nearly eliminates the seating wear due to the camming action of the disc during closing. The mechanical stopper provided on the valve body ensures precise valve closing every time to ensure specified seat tightness. The disc has a spherical profile and comes out of contact with seat in the initial opening itself.

The valve is available with three distinctly different seat design versions, viz. Soft seated, Fire safe and Metal to Metal seated with wafer or wafer lugged body option. The valve has excellent throttling characteristics with good low flow control capability, which offers an inherently higher rangeability.

This feature of High Performance Butterfly Valves series makes them ideal for the flow control / modulating duties. An adjustable gland box type shaft sealing arrangement permits on line adjustment of the packing to ensure zero leakage. The fire safe version, High Performance Butterfly Valve model has been fire tested and certified as per the requirements API 607 standard.
Our Butterfly Valves are generally supplied with manual hand lever or gear operated, depending on valve size. We are also offering Butterfly Valves with either Pneumatic, Hydraulic or Electrical actuator operated for automation as per clients requirement.

Key Features Of High Performance Butterfly Valve

• Double offset disc design with a spherical profile seat eliminates seat wear and ensures perfect sealing every time.
• Availability of wafer lugged body with through drilled or threaded holes
• Available in 3 distinctly different seat version viz. PTFE seat, Fire Safe seat and Metal to Metal seated.
• Self- lubricated drive end and non-drive end bearings for Soft Seated and Fire Safe models and galling free metal bearing for Metal to Metal versions.
• Stuffing box type gland sealing to enable field adjustment of shaft sealing.
• Gland packing standardized on graph oil rings (non-asbestos) to offer widest operating temperature range coupled with excellent media resistance.
• Metal seat standardized on Inconel 625 material to offer maximum temperature resistance and minimum seat deformation.
• Option of seat material for soft seated version in virgin PTFE or filled PTFE.
• Seat removal without disconnecting of shaft and disc.
• Split ring type thrust pad provided for the drive end shaft prevents axial movement of the disc as well as ensures the required ‘anti-static’ feature for the valve.

HIGH PERFORMANCE GEAR OPERATED BUTTERFLY VALVE

HIGH PERFORMANCE LEVER OPERATED BUTTERFLY VALVE

Technical Specifications

• Construction Type : Double offset Disc Design High Performance Butterfly valve
• Valve Model :  Fire Safe / Soft Seated / Metal to Metal
• Body Type and End Connection  : Wafer sandwiched or Wafer lugged
• Size Range : 80 NB to 600 NB
• Pressure Rating : ANSI 300#
• Operating Temperature Range : -500 C to 2000 C  for Soft Seated and Fire Safe Design ,  -500 C to 6000 C for Metal to Metal
• Operation : Lever / Gear operated, Pneumatic/ Hydraulic/ Electrical Actuator operated

Conformity Codes and Standard

Design and Manufacturing Standard : API 609 category B
Pressure and Temperature Rating : ANSI B 16.34
Testing Standard : API 598 / ANSI / FCI 70-2
Face to Face : API 609 category B / ANSI B 16.10
Top Flange Drilling : ISO 5211 part II
Fire Safe Testing  : API 607
Flange standard conformity : ANSI B 16.5 Class 150 & Class 300

Material Of Construction

1. Body : WCB / CF8 / CF8M
2. Disc :  WCB / CF8 / CF8M
3. Seat :  PTFE / Glass filled PTFE
4. Shaft : AISI410 / SS 316 SH

Seatless Butterfly Damper

Butterfly dampers, offered by Citizen Metal are essentially seatless 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.
Our 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. Butterfly Damper 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.
Our Butterfly Valves are generally supplied with manual hand lever or gear operated, depending on valve size. We are also offering Butterfly Valves with either Pneumatic, Hydraulic or Electrical actuator operated for automation as per clients requirement.

WAFER TYPE DAMPER VALVE

Technical Specifications

• Construction Type : Centric Disc, Seatless Butterfly damper
• Body Type : Narrow wafer single piece
• End Connection  : Wafer, sandwiched between flanges
• Size Range : 40 NB to 1200 NB
• Maximum Operating Pressure  : 0.5 bar (maximum)
• Operating Temperature Range : -250 C to 6000 C (depending on MOC)
• Operation : Lever / Gear operated, Pneumatic/ Hydraulic/ Electrical Actuator operated

Conformity Codes and Standard

Actuator Mounting Bracket  : ISO 5211 Part II
Testing Standard : API 598/ ANSI / FCI : 70-2 (Class II )
Flange standard conformity : ANSI 150,DIN PN 6 /10,BS 10 Table D

Material Of Construction

1. Body : WCB / CF8 / CF8M
2. Disc : CS-IS 2062 / SS 304 / SS 316
3. Shaft : AISI410 / SS 316 SH

Key Features Of Seatless Butterfly Damper

• Lightweight design suitable for mounting in ducts, exhaust lines and ventilation pipes.
• Very low operating torque due to seatless construction.
• Ideal for flow control / modulating duties in low pressure gas lines.
• Very low pressure drop in open condition.
• Wide operating temperature range to cater to exhaust & flue gas control lines.
• Zero external leak due to the stuffing box type gland sealing arrangement.
• Perfect adaptability for manual or actuated applications.

Double Flanged Centric Disc Butterfly Valves

Double Flanged Centric Disc Rubber Lined Butterfly Valves

The most sought after design by desalination plants and utility installations, Citizen Metal Double Flanged Centric Disc Butterfly Valve represents the state of the art rubber lined Flanged double valve, meeting all the user industry requirements.

The double flanged body pattern ensures precise installation in pipeline, and can be used as an end to the line valve if required. the unique feature of this valve, is its ability for lined pipes, due to negligible disc protrusion beyond the body laying length. The universal square top shaft on valves upto 200 NB, enables easy change over from hand lever operation to actuated operation when required.
Our Butterfly Valves are generally supplied with manual hand lever or gear operated, depending on valve size. We are also offering Butterfly Valves with either Pneumatic, Hydraulic or Electrical actuator operated for automation as per clients requirement.

DOUBLE FLANGED CENTRIC DISC RUBBER LINED BUTTERFLY VALVE

Technical Specifications

• Valve Type : Centric Disc Design lined Flanged end Butterfly valve
• Body Type : Double Flanged Short
• Seat Type : Integrally Bonded with body ID
• End Connection : Flanged Ends (Double Flanged)
• Size Range : 50 NB to 600 NB
• Pressure Rating : PN6, PN10 & PN16
• Operating Temperature Range : -200 C to 1300 C (depending on MOC)
• Seat Leakage : Tight Shut Off
• Operation : Lever / Gear operated, Pneumatic/ Hydraulic/ Electrical Actuator operated

Conformity Codes and Standard

Design and Manufacturing Standard : EN 593 (BS 5155)/ API 609/ IS 13095
Testing Standard : API 598 / EN 12266 Part 1 (BS 6755 Pt 1)
Face to Face : Double flanged Short Pattern to EN593 (BS5155) / API 609, IS 13095 /ISO 5752 series-13 / EN 558-1 series-13
Top Flange Drilling : ISO 5211
Flange standard conformity : ASME B16.5 #150, en 1092 or BD4504-PN6/PN10/PN16/AWWAC207CLASS-B&D

Material Of Construction

1. Body : CI / SGI / WCB
2. Disc : SGI / WCB / CF8 / CF8M
3. Seat : EPDM / Nitrile / Neoprene / Hypalon
4. Shaft : AISI410 / SS 316 SH
5. Bearing : Steel + PTFE or SS316 + PTFE

Key Features Of Double Flanged Centric Disc Butterfly Valve

• Fully rubber lined body, with lining extending upto the flange contact face to make gasket free sealing.
• Ideal valve for installation with lined pipes, since the disc chord interference with pipe ID is negligible.
• Controlled compression of the gasket face offers optimum sealing and prevents gasket face crushing.
• Unique triple sealing system, for shaft sealing to ensure zero secondary leakage.
• Self lubricated PTFE lined bearings, for both drive end and non-drive end shafts, ensures minimum bearing friction.
• Bi-directional tight shut off sealing from vacuum to rated pressure.
• Excellent adaptability for actuated operation through standardized ISO top flange.
• Universal top square shaft enabling direct actuator fitment, after removal of Hand lever, for sizes upto 200 NB.
• Choice of seat and disc materials to suit media and operating conditions.
• Enables installation close to other pipe fittings, without disc interference.
• Preferred design for desalination plants, municipal water supply and Effluent plants.
• Adjustable bottom thrust pad / bearing for 250 NB and higher to take care of axial thrust loading.
• 600 NB/650 NB size provided with “O Ring holder” type drive end shaft sealing arrangement for extra reliability.

Double Flanged Valves

Citizen Metal double flanged range of valves are double eccentric design butterfly valves. These are available in cast as well as fully fabricated design. The face to face dimensions can be either as per BS (Series BC & BF) or as AWWA (Series AC & AF).These valves incorporate a double offset disc design, which practically eliminates any seat wear. The fully replaceable seat provided on the disc periphery is field replaceable and is capable of achieving bi-directional sealing. The rubber seat  seals against a St. Steel seat ring integrally welded with the body.
Our Butterfly Valves are generally supplied with manual hand lever or gear operated, depending on valve size. We are also offering Butterfly Valves with either Pneumatic, Hydraulic or Electrical actuator operated for automation as per clients requirement.

Key Features Of Double Flanged Butterfly Valve

• Perfectly machined stainless steel seat ring with specially designed sealing profile of the rubber ensures continued tight shut off sealing and makes it an ideal choice for the flow isolation and shut off duties.
• The double offset disc design ensures minimal seat wear and provides excellent throttling capabilities, which makes it an ideal choice for flow control duties.
• Adjustable mechanical stopper provided on Valve body ensures precise closing of the disc without over/under travel.
• Actuator (operator) mounting flange standardized to ISO 5211 with provision of locational spigot, ensures direct mounting of actuators and gear boxes without any radical loading of shafts.
• Both Drive end and non drive end shafts are fully blowout proof and guided by self lubricated bush bearings.
• Axial thrust bearing provided on valves, ensures precise positioning of the disc and prevents unequal loading of the valve seat. It also enables installation of valve in any orientation if required.
• Special shaft sealing arrangement ensure zero fugitive emission and enables field replacement of shaft sealing elements.
• The seat (sealing element) provided on the disc is fully field replaceable and ensures optimum seating / unseating torque.
• A choice of seat materials makes the valve suitable for gas or liquid services with a host of applications.

DOUBLE FLANGED GEAR OPERATED BUTTERFLY VALVE

DOUBLE FLANGED GEAR OPERATED BUTTERFLY VALVE

Technical Specifications

• Valve Type : Flanged End Double Offset Disc Butterfly Valve Of Cast  Construction
• Body Type :  Flanged Short Body
• Body Seat :  SS Ring welded to Valve Body / SS Ring Bolted to Valve Body
• Disc Type : Double Offset mounted on stub shafts
• Disc Seat : Replaceable ‘O’ Ring clammed on Disc
• Shafts Spindle : Stub Shafts, Blow out Proof
• Size Range : 65 NB to 1800 NB
• Pressure Rating : PN 2.5, PN6, PN10 & PN16
• Operating Temperature Range : 00 C to 1800 C
• Seat Leakage : Tight Shut Off
• Operation : Lever / Gear operated, Pneumatic/ Hydraulic/ Electrical Actuator operated

Conformity Codes and Standard

Testing Standard : EN 12266 PT-1 / BS 6755 / API 598 ; AWWA C504
Face to Face : SHORT SERIES AS PER EN 593 / BS 5155, SERIES 13 AS PER EN 588-1, SHORT AS PER ISO 5752 TAB-4 ; AWWA C504
Top Flange Drilling : ISO 5211
Flange standard conformity : EN 1092-1 & 2, BS4504 / IS6392 / ANSI B16.47, ANSI B16,1 / AWWA C207

Material Of Construction

1. Body : CI / SGI / WCB / CF8 / CF8M
2. Disc Seat : NBR, EDPM, SILICON, VITON
3. Body Seat : STAINLESS STEEL SS304 / SS316  OR AISI 410
4. Clamping Ring : CARBON STEEL IS2062 GR.B, STAINLESS STEEL SS304, SS316
5. Shaft : AISI410 / SS 316 SH
6. Shaft Bearing : SELF LUBRICATING (STEEL + PTFE) OPTIONALLY BRONZE / AL. BRONZE

Note : Specifications and Dimensions are subject to change without prior notice

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Butterfly Valves Materials