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Worm Gear Operated Flange Butterfly Valve

  • Size Range:2~88"(DN50~DN2200)
  • Pressure:PN10, PN16, Class150
  • Body Materials:Cast Iron, Ductile Iron, WCB , Stainless Steel
  • Seat Materials:NBR, EPDM, VITON, PTFE
  • Disc Materials:Ductile Iron, WCB, CF8,CF8M, Al-bronze C958
  • End Connection: Wafer

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Worm gear operated flange butterfly valve Features

●Single Eccentric Disc-Shaft
●Anti-Blow Out Stem
●Bi-Directional
●Fire safe Design
●Low Friction Body Seat
●Zero Leakage



 

Adoptive Standards
Valve Design: API 609, MSS SP-67
Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1
Pressure Test: API 598
Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16
Top Flange: ISO5211
Standards 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: 1.1 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

·         ● Drilling Rigs

·         ● Paper Industry

·         ● Gas Plant

·         ● Sugar Industry

·         ● Cooling Water Circulation

·         ● Breweries

·         ● Heating & Air Conditioning

·         ● Chemical Industry

·         ● Pneumatic Conveyors

·         ● Waste Effluent Treatment Plant


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