ZJHM Pneumatic cage control valve

ZJHM Pneumatic cage control valve Product introduction

　ZJHM Pneumatic cage control valve is suitable for the place where has flash vaporization and cavitations generated by the high differential pressure, solid cages and prevent the control valve body from the damage of flash vaporization and cavitations. The fluid channel is streamlined by S shape with low ressure loss, high capacity, wide regulating range. The plug features big guiding area and good vibration resistance. ZJHM Pneumatic cage control valve is equipped with mult-spring diaphragm actuator and compact in structure as well as big in output force.

ZJHM Pneumatic cage control valve feature:

Body type	straight through casting globe type
Spool type:	balanced cage guided sleeve type
Nominal size:	DN20~200,、 NPS 3/4〞~ 8〞
Nominal pressure:	PN16 ~ 100、 CLASS 150LB ~ 600LB
Connection: flange:	FF、RF、MF、RTJ
Welding:	SW、BW
Flange dimension:	According to to IEC 60534
ZJHM Pneumatic cage control valve bonnnet 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.

ZJHM Pneumatic cage 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

ZJHM Pneumatic cage 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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