Pneumatic Diaphragm Control Valve

single-seated control valves are suitable for all general applications over a wide range of pressure drops and temperatures where flow rate is fairly small,The compact valve body,having S-shape flow passage that features low pressure loss,allows a large flow capacity,rangebility,and high accuracy flow characteristics which comply with the IEC standards.

The valve plugs are availabie in a wide range of CV values,The seat leakage performance performance complies with the ANSI standards,The valve is actuated by a new compact and powerful diaphragm actuator loaded with multiple springs.

Main Performance

   Valve size:20,25mm

   Pressure rating:JIS 10K,20K,30K,40K,ANSI CLASS 150,300,600 PN1.6,4.0,6.4

   End connection:Flanged end:RF and RJ, welded end:SW

   Seat leakage:metal seat:ANSI Class IV,soft seat:ANSI Class VI

Hysteresis error:3%FS(without positioner),1%FS(with positioner)

Linearity:±5%FS(without positioner), ±1%FS(with positioner)

Note:The V-Teflon packing is used

Type		Straight-through, single seated, cast globe valve
Normal size		G1/2”~250mm
Pressure rating		ANSI Class 125~2500; PN 1.6~32 MPa *
Rated CV value		0.005~820
End connections		Flanged：FF、RF、RJ、TG、MFM Welded end： SW（40～50mm）；BW（65～250mm）
Body & Bonnet Material		SCPH2/WCB,SCPH21/WC6,SCS13A/CF8,SCS14A/CF8M,SCS16A/CF3M,Ti and other alloy steels .etc.
Trim Material		SUS304,SUS304+Stellite,SUS316,SUS316+Stellite,SUS304L,SUS316L,Monel, Hastelloy C .etc.
Fluid Temperature		－196～＋566℃
Rangeability		50∶1
Flow characteristics		Linear,EQ%
Seat Leakage	Metal seat	Rated Cv0.01% ANSI Class IV
	Soft seat	Bubble-tight ANSI Class VI
Actuator		HA Pneumatic Diaphragm type VA/VP Cylinder piston type EIL Electronic type M8 Intelligent type