ZJHY Pneumatic Diaphragm Small Flow Control Valve

ZJHY - Pneumatic diaphragm small flow control valve

Advantage: small size, light, simple installation and maintenance

Application: used to regulating small flow with liquid, vapor etc.

Nominal dimension (mm)	G1/2'			G3/4'
Seat diameter (mm)	1.5*	3	4	5	6	7	8	9
Flow coefficient Kv	0.0025	0.08	0.12	0.20	0.32	0.50	0.80	1.00
Rangeability	30:1
Nominal pressure	6.4, 1.0 MPa
Valve core	Single seat plunger type
Valve body	1Cr18Ni9Ti、316、316L, corrosion resisting alloy
Valve seat	1Cr18Ni9Ti、316、316L, corrosion resisting alloy
Packing	PTFE, flexible graphite
Diaphragm	NBR
Flow characteristics	Linear
Action type	Pneumatic to open, pneumatic to close
Working temperature	Ordinary model:-40~230°C, Radiation model:230~450°C, Special ordering:450~600°C
Flange standard	JB78-59, JB79/59, JB/T79.1-94, JB79.2-94, ANSI, JIS, DIN
Actuator	ZHA/B type multi spring pneumatic actuator
Available parts	Positioner, solenoid valve, air filter pressure reducing valve, limit switch, valve location feedback device, emergency reaction device, hand wheel etc.