China 2022 China New Design Self Operated Pressure Control Valve – Nitrogen micro pressure self operated regulator valve – Hoyee factory and manufacturers

2022 China New Design Self Operated Pressure Control Valve – Nitrogen micro pressure self operated regulator valve – Hoyee

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2022 China New Design Self Operated Pressure Control Valve – Nitrogen micro pressure self operated regulator valve – Hoyee Detail:

Product feature

ZZV series Self-operated differential pressure Control valve
The micro gas pressure regulator nitrogen valve is part of ZZDG/X nitrogen sealing device is mainly used for the contents control of nitrogen gas pressure regulator at the top of the tank to protect the consents of the tank from being nitrite and the safety of the tank.

Nitrogen seal device is composed of ZZDG gas pressure regulator and ZZDX nitrogen valve two major components. The gas pressure regulator consists of a pressure controller and a ZMQ-K single-seat shut-off valve. When the pressure inside the tank rises to set pressure, nitrogen valve will open quickly and release the excess pressure in the tank.

When the pressure in the tank drops, gas pressure regulator will open and fill in the tank with nitrogen valve. Due to the pressure control valve must be used in the pressure below 0.1MPa, if the site pressure is high, must install ZZDG-type gas pressure regulator to reduce the pressure to below 0.1MPa. Nominal pressure is 0.1MPa, the pressure can be set by sub-section, form 0.5KPa to below 66KPa, medium temperature≤80℃.

ZZV series self operated differential pressure control valve material list

No	Component	Common Material
1	Cover	2Cr13
2	Spring seat	45
3	Spring	60Si2Mn
4	Tray	1Cr18Ni9Ti
5	Diaphragm	NBR
6	Small diaphragm	oil resistant rubber
7	Valve plug	PTFE
8	Valve seat	1Cr18Ni9Ti
9	Valve body	ZG230-450 ZG1Cr18Ni9Ti

Self-operated differential pressure Control valve technical parameter

Nominal diameter(mm)		20	25	32	40	50	65	80	100
Rated flow coefficient KV	ZZCP/ZZVP	7	11	20	30	48	75	120	190
	ZZCN					53	83
Rated stroke(mm)		8	8	10	10	12	15	20	25
Nominal pressure PN(Mpa)		0.10 1.0
Differential pressure range(Kpa)		0.5~5.5 5~10 9~14 13~19 18~24 22~28 26~33 31~38 36~44 42~51 49~58 56~66 64~78 76~90 88~100
Medium temperature		≤80
Adjust accuracy		≤10
Allowable leakage(l/h)	ZZCP/ZZVP	Metal seal10-4 X Valve capacity rating（IV class） Soft seal IV class
	ZZCN	5X10-4X Valve capacity rating（III class）

Piston type self operated regulator structure drawing

micro pressure valve

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