DIAPHGRAM TYPE CONTROL VALVE-410

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DIAPHGRAM TYPE CONTROL VALVE-410

The Diaphragm Valve is essentially a simple pinch clamp, closed by pressing a flexible diaphragm against transverse weir, when fully closed, the diaphragm seats against the weir providing a leak tight closure. The diaphragm valves are recommended for handling sticky and viscous fluids, slurries and highly corrosive and hazardous substances and other hard to handle mediums or where tight closure is prime factor. It is the most ideal valve to handle fluids that require high purity and should remain free from contamination. The Diaphragm Valve is a simple pinch type valve and of low pressure type because of large area of diaphragm and is extensively used for both On/Off and throttling services and finds its application in Waste & Water Treatment Plants, Filtration Plants, Chlorination Plants etc.
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DESIGN Confirm to BS – 5156
BODY TYPE Weir ( Rubber Lined – Series 410 )
( Unlined – Series 430 )
( PFA Lined – Series 440 )
VALVE SIZE 15mm to 200mm ( 1/ 2” to 8” )
END CONNECTION ANSI B 16.1Class 150
BODY MATERIAL Cast Iron ( IS 210 grade FG 200 )
Cast Steel, Other alloys on request.
LINING MATERIAL Ebonite, PVDF, PFA, PP, EPDM,Glass etc.
LINING HARDNESS Ebonite-95° ± 5 Shore A
Natural/Neo Rubber-55° ± 5 Shore A
PTFE-Rockwell/Shore R100 D78 or
D62 Glasslining & FRP-Parcol Parcol 40 Respectively.
LINING THICKNESS 15 to 65 mm Valve – 3.0 mm
80 to 100 mm Valve – 3.5 mm
125 to 150 mm Valve – 4.0 mm
200 to 300 mm Valve – 5.0 mm
PTFE Coating Thickness – 800 micron,
Glass Lining – 1.5mm.
BODY DIAPHRAGM Neoprene, PTFE Backed with Neoprene Butyl, Viton, Hyplon, Nitrile, EPDM.
LEAKAGE RATE As per ANSI B 16.104 Class VI (100% Leak tight.)
TEMPERATURE – 30°C to 80°C
FLOW CHARACTERISTICS. On/Off, Throttling
TESTING STANDARD BS 6755 Part – I
ACTUATOR TYPE Diaphragm or Motorised or Cylinder
ACTUATOR ACTION Direct Acting – Normally Open ( Air to Close ) Reverse Acting – Normally Close ( Air to Open)
SPRING RANGE 3 – 6 Psig Direct Actuator
18 – 30 Psig Reverse Actuator
AIR SUPPLY 40-50 PSIG (2.8-3.5 Kg/cm²)
AIR CONNECTION 1/ 4” or 1/ 2” NPT
ACCESSORIES
OPTIONAL		 Top or Side Mounted Handwheel, Limit Switches
Airset, Valve Positioner etc.
  • It is a full bore straight through, give high flow performance with minimum turbulence, while giving 100% leak tight closure.
  • Perfect sealing and longer diaphragm life due to weir design.
  • Valve is self cleaning with no pockets, recesses, corners, grooves or sharp edges in the direction of flow.