Butterfly Valve Manufacturer, Wafer Type Center Disc Rubber Lined Butterfly Valve Manufacturer

Butterfly Valve
High Performance Butterfly Valve

Center Rubber Lined Butterfly Valve
Replaceable Sleeve Type Butterfly Valve
Concentric, Slim-Seal Design Butterfly Valve
Flangeless, Wafer, Sandwich Type Butterfly Valve
Wafer / Lug / Double Flanged Type Butterfly Valve
Damper Type Butterfly Valve

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.

VALVE OPERATION:
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.
Salient Features:
• Concentric, Slim-Seal Design
• Greater Sealing Capacity
• Soft Seat 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
• Wafer Design Body
• Long Service Life
• Smooth, Easy Operation
• Maintenance Free Version
• Less Weight, Easy To Install

Design & Testing International Standard:
Valve Design : BS 5155 / API 609
Pressure Testing : BS 6755-I / API 598
Face To Face : ANSI B 16.10
Flange Drilling : ANSI B 16.5 / BS 10 Table / DIN / IS / JIS Std.
Pressure Rating : PN 10 / PN 16
Leakage Class : Class VI (Zero Leakage)
Size Range : 40NB to 600NB
Operation : Up to 250NB Flow-Control Lever Operated
and above Gear Operated. On special request Gear
Operation also available from 80NB size.

Special Options:
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

Material of Construction:
Body
☼ Cast Iron to ASTM A 126 Class B
IS 210 GR. FG 200 / 220 / 260
☼ Ductile Iron to ASTM A 536 Grade 65-45-12.
☼ Cast Carbon Steel to ASTM A 216 GR. WCB.
☼ Stainless Steel to ASTM A 351 GR. CF 8 / 8M / 3 / 3M

Disc
☼ Cast Iron to ASTM A 126 Class B.
IS 210 GR. FG 200 / 220 / 260..
☼ Ductile Iron to ASTM A 536 Grade 65-45-12
☼ Cast Carbon Steel to ASTM A 216 GR. WCB
☼ Stainless Steel to ASTM A 351 GR. CF 8 / 8M / 3 / 3M.
☼ Aluminium Bronze ASTM B 148-C95400
☼ Nylon Coating on C.I. / D.I. / WCB / S.S. Disc Material
☼ EPDM / Neoprene / Hypalon ® / Nitrile Rubber / Buna-N Rubber
Encapsulated on C.I. / D.I. / WCB / S.S. Disc Material
☼ P.T.F.E. (PFA / FEP) Lined on C.I. / D.I. / WCB / S.S. Disc Material

Stem
☼ AISI 410 (S.S. 410 – 13% Cr. Steel)
☼ AISI 304 (S.S. 304)
☼ AISI 316 (S.S. 316)
☼ AISI 304L (S.S. 304L)
☼ AISI 316L (S.S. 316L)
☼ Carbon Steel to BS 970..

Seat (Liner)
☼ EPDM
☼ EPDM Food Grade
☼ Buna – N
☼ Black Nitrile
☼ Neoprene
☼ Hypalon ®
☼ Silicon
☼ Viton ®
☼ P.T.F.E.

Standard Test:
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.

Seat Test
1.5 times the working pressure with water.

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.

Special Test
On request, any other test can be carried out according to special instruction by client

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

_________________
Contact Name: Bhavesh B Panchal
Company Name: Dharmi Engineers
Email: Info@dharmiengineers.com
Tel: 919427068323
Fax:
Street Address: B/89 Ishvarlila
Park, Jamfalwadi, B/h. Shakriba
Party Plot, Nr. Ctm Cross Road,
Ahmedabad – 3882449. Gujarat, India