Self-operated Pressure Control Valve

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Self-operated Pressure Control Valve

Size： DN15~DN300

Pressure: PN1.6Mpa, PN4.0Mpa, PN6.4Mpa

End connection: RF, RTJ

Material: WCB, WC6, LCB, CF8, CF8M, CF3M, LCB,904L, 316Ti, A105, F304,F316, Duplex stainless steel, Monel, Hastelloy, (Special Materials on Request)

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Description

Features

1.With pressure balancing function and high sensitivity

2.Low noise, reliable performance, and maintenance free

3.Adopting standard modular design

4.Multiple combination controls can be achieved through assembly component

Self-operated pressure control valve consist of a control valve, an actuator, and a spring for setting pressure.Suitable for non-corrosive liquids, gases, and steam, and can be used for pressure control either upstream (when the upstream pressure increases, the control valve opens) or downstream (when the downstream pressure increases, the control valve closes) in the system pipeline. It is widely used in the petroleum, chemical, power, metallurgy, medicine, food, textile, machinery, and HVAC industries.

Technical specification and performance

Nominal diameter (mm)		DN15, DN20, DN25,DN32, DN40, DN50,DN65, DN80, DN100, DN125, DN150,DN200, DN250,DN300
Nominal pressure (Mpa)		PN1.6, PN4.0, PN6.4
Flange standards		JB/T79.1-94 , 79.4-94 etc
Body material		WCB, WC6, LCB, CF8, CF8M, CF3M, LCB,904L, 316Ti, A105, F304,F316, Duplex stainless steel, Monel, Hastelloy, (Special Materials on Request)
Spool	Hard sealing	Stainless steel (1Cr18ni9Ti, 1Cr18Ni12MoTm)
	Soft sealing	Stainless steel embedded with rubber
Pressure balancing		Stainless steel bellows
Flow characteristics		Quick open
Operating Temperature		-20~80℃ -20~350℃

Actuator

Pressure setting ranges(KPa)	15~50;40~80;60~100;80~140;120~180;160~220;200~260;240~300;280~350;300-400;380-450;430-500;480-560;540-620;600-700;680-800;780-900;880-1000;950-1500;1000-2500
Diaphragm cover material	steel plate zinc coating
Diaphragm material	Nitrile rubber, ethylene propylene rubber, fluorinated rubber, oil-resistant rubber

Performance

Set value deviation		±5%
Allowable leakage( under specified test conditions)	Soft sealing	Single seat: ≤10-4 rated capacity of the valve; Double seat, sleeve: 5×10-3 rated capacity of the valve
	Hard sealing	DN15~150 10bubble/min	DN65~125 20bubble/min	DN150~250 40bubble/min	DN300 60bubble/min