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Butterfly
Valve |
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Center Rubber Lined Butterfly Valve Manufacturer
Replaceable Sleeve Type Butterfly Valve Manufacturers
Concentric, Slim-Seal Design Butterfly Valve Manufacturer
Flangeless, Wafer, Sandwich Type Butterfly Valve Manufacturers
Wafer / Lug / Double Flanged Type Butterfly Valve Manufacturer
Damper Type Butterfly Valve Manufacturer & Exporter India |
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Dharmi Engineers Wafer Type Butterfly Valve have been developed with extensive application, design and manufacturing expertise. Dharmi Engineers 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. Dharmi Engineers Butterfly Body having 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. Dharmi Engineers High performance butterfly valves are also available with Full-Lugs type body with raised faces and flanged ends connection on request.
Dharmi Engineers Butterfly Valve, Wafer Type, Slim-Seal design, maintenance free shutoff. This butterfly valves excess other conventional valves such as gate valve and globe valves in all aspects, especially in terms of light weight, less number of component, no flange gaskets required and economical operation and maintenance costs.
Dharmi Engineers 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.
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Rubber Lined
(Moulded/Bonded Seat) Butterfly Valve
Slim Seal, Center Disc Design,
Wafer Type, Flangeless, Sandwich Type
Manual Flow-Control Lever Operated
Size Range – 40NB to 600NB |
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Wafer
Type, Center Disc, Rubber Lined Butterfly Valve, Rating PN
10/PN16 |
Lever Operated
40mm To 300mm
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Gear
Operated
200mm to 450mm
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Gear
Operated
500mm to 800mm
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Pneumatic
Operated
40mm To 300mm
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Electrical
Operated
40mm To 300mm
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Lug Type Body, Center Disc, Rubber Lined Butterfly Valve,
Rating PN 10/PN16 |
Lever Operated
40mm To 300mm
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Gear
Operated
200mm to 600mm
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Double Flanged End, Center Disc, Rubber Lined Butterfly
Valve, Rating PN 10 |
Lever Operated
40mm To 300mm
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Gear
Operated
200mm to 600mm
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Eccentric Disc (Off-Set Disc) Double Flanged End Butterfly
Valve, Rating PN 10 |
Gear
Operated
350mm to 1600mm
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Wafer
Type, Butterfly Valve, Flow Control Hand Lever Operated,
Center Disc, Slim-Seal Design |
Lug
Type Butterfly Valve, Flow Control Hand Lever Operated, Center
Disc, Slim-Seal Design |
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PTFE
Lined Butterfly Valve, Flow Control Hand Lever Operated,
Center Disc Design |
Double
Flange Butterfly Valve, Gear Operated |
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| Pneumatic
Actuator Operated Butterfly Valve |
Electrical
Actuator Operated Butterfly Valve |
 
700NB
(28") Size Double Flanged End Butterfly Valve |
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Butterfly
Valve
Operation : |
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Dharmi Engineers Butterfly Valves are generally supplied with manual hand lever operation up to 10” and above gear unit operated. Dharmi Engineers also offering Butterfly Valves with either Pneumatic or Electrical actuator operated for automation.
We also manufacturer of Gear Operated Butterfly Valve, Pneumatic
Actuated Butterfly Valves, Pneumatic Actuator Operated
Rubberlined Butterfly Valves, Double Acting Actuator Operated
Center Disc Butterfly Valve, Single Acting Spring Return Actuator
Operated Wafer Type Butterfly Valve, Electrical Actuator
Operated Butterfly Valve, Motorized Butterfly Valve, Remote Operated
Butterfly Valve, On-Off Butterfly Valve, Butterfly Control Valve,
Modulating Type Butterfly Valve, We can do provide any of automation
in Butterfly Valve. We have more then 14 years of experience
industrial process system field automation. Butterfly Valve can also
available with accessories like Gear Box, Solenoid Valve, Air Filter
Regulator, Silence, Manual Override, Valve Positioners, Relay etc.
Accessories
for Butterfly Valves:
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Pneumatic
Actuators: |
| Type -
Double / Single Acting (Spring Return) Quarter Turn |
| Body -
Extruded Aluminium, Hard Anodized (Stainless Steel
Body also available on Request |
| Pinion -
Steel |
| Piston
wiht Rack - Aluminium |
| End Cover
- Aluminium |
| Piston
Seal - NBR |
| Piston
Bearing - Polyacetal |
| Spring -
Spring Steel Grade 3 (For Spring Return Actuator) |
| Strok
Adjustment Screw - S.S. 304 |
| Air
Connection - 1/4" BSP Female (1/2" for
above 2000Nm) |
| Torque
Capacity Range - 5Nm To 3000 Nm |
| Suitalbe
for up to 8 Bar Air Pressure |
| ISO 5211
Mounting Pad |
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Gear Box: |
| Type -
Worm Gear, Quarter Turn, + 10 Deg. Adustable |
| Body
Housing - ASTM A 126 GR. B (Epoxy Coated) |
| Cover -
ASTM A 126 GR. B (Epoxy Coated) |
| Worm Wheel
- S.G. Iron |
| Worm -
Alloy Steel |
| Input
Shaft - Alloy Steel |
| Bearing
Bush - Brass |
| Greese
Nipple - Steel |
| Fastners -
ASTM A 193 GR. B7 / A 194 GR. 2H |
| Grease -
Lithon 2 |
| Hand Wheel
- C.S. Fabricated (Epoxy Coated) |
| Torque
Capacity Range - 50Nm To 25000 Nm |
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Manual Override Gear Box: |
| Application
- In Case of Failure of Air/Electric to Operate
Valve |
| Type -
Worm Gear, Quarter Turn, + 10 Deg. Adustable |
| Body
Housing - ASTM A 126 GR. B / Aluminium / Ductile
Iron |
| Cover -
ASTM A 126 GR. B / Aluminium / Ductile Iron |
| Worm Wheel
- S.G. Iron |
| Worm -
Alloy Steel |
| Input
Shaft - Alloy Steel |
| Bearing
Bush - Brass |
| Greese
Nipple - Steel |
| Fastners -
ASTM A 193 GR. B7 / A 194 GR. 2H |
| Grease -
Lithon 2 |
| Hand Wheel
- C.S. Fabricated (Epoxy Coated) |
| Torque
Capacity Range - 50Nm To 5000 Nm |
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AFR - Air Filter Regulator: |
| Body
Material - Aluminium Die Cast |
| Connection
Size - 1/4" |
| Filter
Element Size - 5, 25, 50 Micron |
| Filter
Element Material - Polycarbonate |
| Range - 0
to 17.5 Kg./Cm2 |
| Maximum
Operating Temperature - 80 Deg. C. |
| Drain -
Manual |
| Mounting -
Back Side |
| Mounting -
Back Side |
| Outlet -
Adjustable Type |
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Limit Switches (Weather / Explosion
Proof): |
| Housing -
Aluminium Die Cast Powder Coated |
| Cable Entry
- 1/2" / 3/4" NPT |
| Fasteners -
Strainlesss Steel |
| Temperature
- (-) 20 Deg. C, to (+) 80 Deg. C. |
| Swithches -
Micro OR Cylindrical Inductive Proximity Sensor |
| Shatterproof
Polycarbonate Dom for On/Off Indication |
| Bracket -
C.S. Powder Coated (S.S. available on request) |
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Namur Solenoid Valve: |
| Type - 5 x
2 Way (for Double Acting)/3 x 2 (for Single Acting) |
| Body -
Aluminium Anodized (Brass/S.S. on request) |
| End
Connection Size - 1/4" BSP |
| Air Supply
- Up to 8 Kg./Cm2 |
| Coil
Voltage - 220 V. / 110 V. / 24 V. AC / DC |
| Enclosure -
Weather Proof / Flame Proof / Explosion Proof |
| Seal - NBR |
| Life - 60
Milion Cycle |
| Manual
Override Provided |
| Temperature
- (-) 20 Deg. C, to (+) 70 Deg. C. |
| Large
Exchause for Fast operation of Valve |
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Others:
Silencer, Air Lock Relay, Tubing &
Fittings (PU/Brass/Copper/SS 304-316) |
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Butterfly
Valve Salient
Features : |
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Concentric, Slim-Seal Design
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Greater Sealing Capacity
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Soft Seat Design
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Lower Torque with any fluid
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Permanently tight closure
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Bi-Directional Valve
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Optimum operation under Vacuum Condition
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Suitable for On-off as well as Throttling Service
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Materials for almost all media
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Short Face To Face Dimension
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Wafer Design Body
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Long Service Life
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Smooth, Easy Operation
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Maintenance Free Version
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Less Weight, Easy To Install
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Butterfly
Valve Design
& Testing International Standard : |
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Valve Design
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BS 5155 / API 609 |
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Pressure Testing
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BS 6755-I / API 598 |
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Face To Face
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ANSI B 16.10 |
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Flange Drilling
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ANSI B 16.5 / BS 10 Table / DIN / IS / JIS Std. |
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Pressure Rating
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PN 10 / PN 16 |
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Leakage Class
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Class VI (Zero Leakage) |
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Size Range
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40NB to 600NB |
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Operation
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Up to 250NB Flow-Control Lever Operated
and above Gear Operated. On special request Gear
Operation also available from 80NB size. |
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Butterfly
Valve Special
Options : |
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Off Set Disc Design Butterfly Valve for high pressure & temperature service.
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Moulded / Replaceable Seat option
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Gear / Pneumatic Rotary Actuator Operated
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P.T.F.E. (PFA/FEP) Lined Butterfly Valve
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Flanged End, Butterfly Valve
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Damper Type Butterfly Valve for High Temperature Air Service
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Off Set Disc Design Butterfly Valve for high pressure & temperature service
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Tailor Made Valve
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Butterfly
Valve Material
of Construction : |
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Disc |
Seat (Liner) |
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Cast Iron to ASTM A 126 Class B
IS 210 GR. FG 200 / 220 / 260
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Ductile Iron to ASTM A 536 Grade 65-45-12
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Cast Carbon Steel to ASTM A 216 GR. WCB
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Stainless Steel to ASTM A 351 GR. CF 8 / 8M / 3 / 3M
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Aluminium Bronze ASTM B 148-C95400
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Nylon Coating on C.I. / D.I. / WCB / S.S. Disc Material
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EPDM / Neoprene / Hypalon ® / Nitrile Rubber / Buna-N
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RubberEncapsulated on C.I. / D.I. / WCB / S.S. Disc Material
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P.T.F.E. (PFA / FEP) Lined on C.I. / D.I. / WCB / S.S. Disc Material
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EPDM
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EPDM Food Grade
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Buna – N
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Black Nitrile
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Neoprene
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Hypalon
®
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Silicon
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Viton
®
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P.T.F.E.
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Body
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Stem
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Cast Iron to ASTM A 126 Class B
IS 210 GR. FG 200 / 220 / 260
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Ductile Iron to ASTM A 536 Grade 65-45-12
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Cast Carbon Steel to ASTM A 216 GR. WCB
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Stainless Steel to ASTM A 351 GR. CF 8 / 8M / 3 / 3M
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AISI 410 (S.S. 410 – 13% Cr. Steel)
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AISI 304 (S.S. 304)
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AISI 316 (S.S. 316)
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AISI 304L (S.S. 304L)
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AISI 316L (S.S. 316L)
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Carbon Steel to BS 970
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Butterfly Valve Standard Test : |
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Body Test |
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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. |
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Seat Test |
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1.5 times the working pressure with water. |
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Function / Operation Test |
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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. |
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Special Test |
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On request, any other test can be carried out according to special instruction by client |
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Butterfly Valve Applications : |
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Water Treatment Plant
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Paper Industry
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Sugar Industry
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Breweries
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Chemical Industry
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Waste Effluent Treatment Plant
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Drilling Rigs
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Gas Plant
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Cooling Water Circulation
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Heating & Air Conditioning
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Pneumatic Conveyors
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Compressed Air
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Please specify below details at the time of enquiries/orders: |
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Types of Valve
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Pressure Rating Class
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Valve Size
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Type of End Connection
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Material of Construction
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Disc Material
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Rubber
Seat Material
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Flow
Medium (Service)
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Design
Pressure
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Operating
(Working) Pressure
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Design
Temperature
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Operating (Working) Temperature
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Type of Operation Manual / Pne. / Ele. Etc.
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Wide Range of Industrial Butterfly Valve Manufacturers and Exporters |
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Cast Iron Butterfly Valve
Manufacturer
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Cast Carbon Steel Butterfly Valve Manufacturers
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Cast Stainless Steel Butterfly Valve
Exporter
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Slim-Seal Design Butterfly Valve
Supplier
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Rubber lined Butterfly Valve
Stockiest
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P.T.F.E. lined Butterfly Valve Manufacturer
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Wafer Type Butterfly Valve Manufacturers
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Damper type Butterfly Valve
Exporter
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High Performance Butterfly Valve Manufacturer
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Center Disc Butterfly Valve
Manufacturers
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Off-Set Disc Butterfly Valve
Exporter
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Gear operated Butterfly Valve
Supplier
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Pneumatic operated Butterfly Valve
Stockiest
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Electrical operated Butterfly Valve Manufacturer
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Zero Leakage Butterfly Valve Manufacturers
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Double Flange TYpe Butterfly Valve Manufacturer
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Recent
Execute Butterfly Valve Purchase Order |
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Date: 26/10/2012 -
Double Flanged End Butterfly Valve supply for LPG
Plant. Butterfly Double Flanged End Valve Specification - Body -
C.S. (Fabricated), Disc - ASTM A 351 GR. CF
8M (SS 316), Seat - EPDM, Stem - S.S. 316, Operation - Gear Operated, Pressure Rating - PN
10. |
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Date: 05/08/2012 -
Butterfly Valve supply for Cement Plant, Water & Air
Application. Butterfly Valve Specification - Body - Cast Iron, Disc - ASTM A 351 GR. CF
8 (SS 304), Seat - EPDM, Stem - S.S. 304, Operation - Flow
Control Lever Operated, Pressure Rating - PN 10, Quanatity -
180 Piece.
All Valves are going to installed in new expansion project
of India's top leading cement plant. |
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Date:
30/06/2012 - Butterfly Valve supply for
Desalination Plant, Sea Water Application. Butterfly Valve
Specification - Body - Cast Iron, Disc - ASTM A 351 GR. CF
3M (SS 316L), Seat - EPDM, Stem - S.S. 316L, Operation -
Gear Operated. Hand Wheel & Gear Shaft made from S.S.
316L to perform better long time against corrosion climate.
All Valves are going to installed in Desalination Plant
which earlier supplied by M/s. Thermex Limited. |
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Date:
21/04/2012 - Butterfly Valve supply for Chemical
Plant. Butterfly Valve Specification - Body - ASTM A 216 Gr.
WCB (Cast Carbon Steel), Disc - ASTM A 351 GR. CF 8M (SS
316), Seat - EPDM, Stem - S.S. 316, Operation - Gear
Operated. All Valves are going to installed in Chemical
Process Line at EXPORT (Kingdom of Saudia Arbia) Client.
Customer is Middle East leading chemical manufacturer and
blender preparer of antioxidants and polymer additives.
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Butterfly
Valve in READY-STOCK / Fastest Delivery |
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