ZJHP Pneumatic single seat control valve

ZJHP Pneumatic single seat control valve Product introduction

　ZJHP Pneumatic single seat control valve adopts single sealing surface spool structure, applicable for low pressure difference and low leakage requirement. ZJHP Pneumatic single seat control valve adopts double sealing surface spool structure, applicable for low leakage requirement. The body channel is streamlined by S shape with low pressure loss, high capacity,wide regulating range, and high accuracy in flow characteristics. The plug features with guiding area and good vibration resistance. ZJHP Pneumatic single seat control valve is equipped with mult-spring diaphragm actuator and compact in structure as well as big in output force. ZJHP Pneumatic single seat control valve is designed to control a broad variety of fluids, like steam, water, most of the medium and gases.

ZJHP Pneumatic single seat control valve can be widely used in controlling the medium like gas, liquid, steam and so on, and keep the working value like the pressure, flow rate, temperature, liquid level at the specific value, especially suit for the working condition of small allowable leakage and small differential pressure.

ZJHP Pneumatic single seat control valve feature:

Body type	straight through casting globe type
Spool type:	single seated globe type
Nominal size:	DN15~300,、 NPS 1/2〞~ 12〞
Nominal pressure:	PN16 ~ 40、 CLASS 150LB ~ 300LB
Connection: flange:	FF、RF、MF、RTJ
Welding:	SW、BW
Flange dimension:	According to to IEC 60534
Pneumatic single seat control valve Bonnet type:	Ⅰ:standard type（-20℃~230℃） Ⅱ:Radiator type: （-45℃~ high than 230℃ occasion） Ⅲ:Low temperature extended type（-196℃~ -45℃） Ⅳ:Bellow seal type Ⅴ:Warm insulation Jacket type
Packing:	V type PFTE packing, flex. graphite packing, etc.
Gasket:	Metal graphite packing
Actuator:	Pneumatic: multi-spring diaphragm actuator, piston type actuator.

ZJHP Pneumatic single seat control valve material:

Component name	Control Valve Material
Body/Bonnet	WCB/WCC/WC6/CF8/CF8M/CF3M
Valve spool/Seat	304/316/316L(overlaying stellite alloy)
Packing	Normal:-196～150℃ is PTFE,RTFE,>230℃ is flexible graphite
Gasket	Normal:Stainless steel with flexible graphite,Special:Metal tooth type gasket
Diaphragm Cover	Normal:Q235,Special:304
Diaphragm	NBR with reinforced polyester fabric
Spring	Normal:60Si2Mn,Special:50CrVa
Control valve stem	2Cr13/17-4PH/304/316/316L

ZJHP Pneumatic single seat control valve technical specification

Body Size(mm)		20	25	32	40	50	65	80	100	125	150	200
CV	Linear	6.9	11	17.6	27.5	44	69	110	176	275	440	690
CV	Equal-Percent	6.9	10	16	25	40	63	100	160	250	400	630
Rate Travel		16		25			40			60
Diaphragm Piece Effective Area		280		400			600			1000

Body Size(mm)		250	300	350
CV	Linear	1000	1650	2160
	Equal-Percent	900	1500	2000
Rate Travel		100	100	100
Diaphragm Piece Effective Area		1600
Nominal Pressure (MPa)		MPa		1.6, 2.5, 4.0, 6.4(6.3)/2.0, 5.0, 11.0, 15.0
		Bar		16, 25, 40, 64(63)/20, 50, 110, 150
		Lb		ANSI: Class150, Class300, Class600, Class900
Inherent Flow Characteristic		(Enqual-Percentage), (Linear)
Inherent Adjust Rate (R)		50
Spring Signal Range (KPa)		20~100，40~200，80~240
Air Pressure (MPa)		0.14/0.25/0.3
Temperature （℃）	Normal Temp	-20~200, -40~250,-60~250
	Radiator	-40~450, -60~450
	High Temp	450~560(High Temperature Material)
	Low Temp	D0: -60~-100, D1: -100~-200, D2: -200~-250
	Cutting-Off	-40~150(PTFE-PTFE), -60~200(PTFE-Reinforced PTFE)

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