Zjhl Pneumatic Film Cage Type Regulating Valve/Pneumatic Sleeve Regulating Valve

Basic Info.

Model NO.	ZJHL
Material	Stainless Steel
Type	Cage Type
Port of Ningbo	Class IV (Standard, Metal Seat)
Body Type	Straight Through, Angle, Z Shape
Pressure	Normal Pressure
Use	Adjust
Transport Package	Wooden Box
Specification	DN15-DN500
Trademark	xc
Origin	China
HS Code	8481804090
Production Capacity	10000

Product Description

Pneumatic cage type control valve overview
ZJHL pneumatic film cage valve is mainly designed to reduce the noise of compressible fluid, in order to adapt to the gas throttling diffusion and expansion, the sleeve is provided with many symmetrical holes to reduce the pressure drop, the fluid channel is streamlined, the spool adopts the pressure balance structure, the valve cage window curve to determine the flow characteristics of the valve, There is also a guide wing to improve the smooth flow of fluid around the sleeve, so the pressure drop loss is small, the flow rate is large, the noise is small.
Pneumatic cage type regulating valve features
Pneumatic cage type regulating valve sealing surface is composed of a metal sealing surface between the valve core and the seat, and a non-metallic elastic sealing structure between the valve cover and the valve cage, non-metallic structure using graphite gasket, its elasticity and high temperature resistance has been greatly improved! Good dynamic stability, low noise, air defense, suitable for the control of high pressure differential fluid of various temperatures.
Pneumatic cage type regulating valve parameters

Valve body
Form	Straight through cast ball valve
Nominal diameter	25. 32. 40. 50. 65. 80. 100. 125. 150. 200. 250. 300mm
Nominal pressure	PN16, 40, 64bar
Flange standard	JB/T79.1-94, 79.2-94, etc
Materials	Cast steel (ZG230450), stainless steel (ZGICr18Ni9Ti, ZGICr18Ni12M02Ti), etc
Upper valve cover	Standard: - 17-230 ºC heat type: 230-450 ºC low temperature type: 60-196 ºC bellows seal type: - 40-350 ºC
Valve cover form	Bolt press type
Packing	V-shaped PTFE packing, asbestos packing containing impregnated polytetrafluoroethylene packing, asbestos textile packing, graphite packing
Structural form	Cage regulating valve

Valve inner assembly
Spool type	Pressure balanced spool
Flow characteristics	Equal percentage characteristics and linear characteristics
Materials	Stainless steel, stainless steel castello alloy, titanium and corrosion resistant table gold, etc.

Pneumatic cage type regulator valve actuator

Executive mechanism
Type	ZHA/B multi-spring film actuator
Model number	ZHA/B-22	ZHA/B-23	ZHA/B-34	ZHA/B-45	ZHA/B-56
Effective area cm2	350	350	560	900	1400
Stroke mm	10. 16	25	40	40, 60	100
Spring range KPa	20-100 (standard), 20-60, 60-100, 40-200, 80-240
Diaphragm material	Butadiene rubber clip nylon cloth, ethylene propylene rubber clip nylon cloth
Air supply pressure	140-400KPa
Air source interface	RC1/4"
Ambient temperature	- 30-70 ºC

Valve action form

Air-close type (B) - Valve position open when air is lost (FO); Air open (K) - valve position closed when air is lost (FC)

Accessories

Positioner, air filter pressure reducer, position keeping valve, travel switch, valve position transfer, hand wheel mechanism, etc