ZJHP Pneumatic Diaphragm Control Valve

ZJHP - Pneumatic diaphragm single seat control valve

Advantage: small size, light, large flow, large rangeability

Application: used to clean medium with low leakage requirement and low differential pressure.

Nominal dimension (mm)		20				25	40		50	65	80	100	150		200	250	300
Seat diameter (mm)		10	12	15	20	25	32	40	50	65	80	100	125	150	200	250	300
Flow Kv	Linear	1.8	2.8	4.4	6.9	11	17.6	27.5	44	69	110	176	275	400	630	940	1200
Flow Kv	Equal percentage	1.6	2.5	4	6.3	10	16	25	40	63	100	160	250	360	570	850	1050
Rangeability		30:1 ; 50:1
Nominal pressure		1.6, 4.0, 6.4MPa
Core type		Single seat plunger type
Flow characteristic		Linear, equal percentage
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.