Self regulating Pressure Control Valve - Self-operated control valve - Electric control valve,pneumatic control valve-China control valve manufacturer

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SHANGHAI HUIXUAN VALVE

Tel:+86-17717520739

Email：info@shxvalve.com

Address: NO.720, Suide Road, Jiading District,Shanghai, China.

Self regulating Pressure Control Valve

Model：ZZY

Port size：DN20~300, NPS 3/4〞~ 12〞
Pressure：PN16 ~ 25 CLASS 150/300LB
Medium：Water,oil,steam,gas
Temperature :-40～450℃
Body material：WCB LCB CF8 CF3 CF8M CF3M
Connection：Flange
Position type：
Characteristic：Quick open
Voltage：No
Other：Different standard is optional

Self regulating Pressure Control Valve Feature
Self regulating Pressure control valve can change differential pressure and flow before and after the valve to keep the pressure before (or after) the valve at a constant level, using the self energy of the medium to be controlled as the power source, without external power. It features flexible action, good seal property and low fluctuation of the pressure set point. It's widely used for the automatic control of the pressure-reducing stabilization and pressure-relief stabilization for the gases, liquid and steam.

Self regulating Pressure Control Valve has other advantages as smart and accurate regulating,taking up small space and simple operation and Self regulating Pressure Control Valve is widely used in the pressure control of gas,steam or water in petroleum, chemical, electric power, metallurgy, food, textile, machinery, civil construction industry.

Self regulating Pressure Control Valve is designed and manufactured according to the standard of AMSE/API/BS/DIN/GB
Self regulating Pressure Control Valve Pressure adjusting range
Self regulating Pressure Control Valve Structure

Self regulating Pressure 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
Control valve stem	2Cr13/17-4PH/304/316/316L
Diaphragm Cover	Normal:Q235,Special:304
Diaphragm	NBR with reinforced polyester fabric
Spring	Normal:60Si2Mn,Special:50CrVa

Self regulating Pressure Control Valve parameter

Nominal diameter DN(mm)	20	25	32	40	50	65	80	100	125	150	200	250	300
Coefficient(KV)	5	8	12.5	20	32	50	80	125	160	320	450	630	900
Rated stroke(mm)	8		10		12	15	18	20	30	40	45	60	65
Nominal diameter DN(mm)	20
The seat diameter DN(mm)	2	3	4	5	6	7		8	9	10	12	15	20
Coefficient(KV)	0.02	0.08	0.12	0.20	0.32	0.5		0.80	1.20	1.80	2.80	4.0	5
Nominal pressure	MPa		1.6，2.5，4.0，6.4(6.3)/2.0，5.0，11.0
	Bar		16，25，40，64(63)/20，50，110
	Lb		ANSI：Class150、Class300、Class600
pressure range KPa	15～50、40～80、60～100、80～140、120～180、160～220、200～260、 240～300、280～350、330～400、380～450、430～500、480～560、540～620、 600～700、680～800、780～900、880～1000、900～1200、1000～1500、 1200～1600、1300～1800、1500～2100、
Flow characteristic	Quick opening
Adjust the accuracy	±5-10(％)
Working TemperatureT(℃)	-60～350(℃) 350～550(℃)
Leakage	Class IV；Class VI

Self regulating Pressure Control Valve Outline dimension

Nominal diameter DN(mm)			20	25	32	40	50	65	80	100	125	150	200	250	300
B			383		512		603	862		1023	1380		1800	2000	2200
L(Pn16、25、40)			150	160	180	200	230	290	310	350	400	480	600	730	850
L(PN64)			230		260		300	340	380	430	500	550	650	775	900
pressure range KPa	15～140	H	475		520		540	710		780	840		880	940	950
		A	280		308
	120～300	H	455		500		520	690		760	800		870	900	950
		A	230
	280～500	H	450		490		510	680		750	790		860	890	940
		A	176					194		280
	480～1000	H	445		480			670	740	780	780		850	880	930
		A	176					194			280
Weight (Kg) (PN16)			26		37		42	72	90	112	130	169	285	495	675

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