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Self-Operated Pressure Control Valve

Self-Operated Pressure Control Valve
Price: Negotiable/Piece
Trade Terms: FOB,CFR,CIF
Min Order: 1/Piece
Pay Type: L/C,T/T,D/P,Paypal
Self-operated/regulating Pressure Control Valve

U-ideal self-operated actuators provide control for a wide variety of pressure regulation applications.Coupled with an easy control valve, these actuators can be either self-operated (using process pressure as a signal), or remote-operated.Typical industrial applications include pressure control of water, steam, oil, gas, and other fluids.

You Can Buy Various High Quality Self-operated Control Valve Products from Global Self-operated Control Valve Suppliers

ZZYVP Series of Self-operated Pressure Control Valve With Pilot,there is no need for any external power source,only used fluid own energy to adjusted the valve opening automatically,The valve uses the regulating mechanism which has quick open flow characteristic of balanced single-seat valve,without packing and frictionless movable components internal, it makes fluid pressure stable, high precision adjusting, which could control micro pressure conditions and make sure safe and reliable sealing performance, arbitrary adjust of set value could be also achieved during operation.So it is widely used for the micro pressure automatic regulation sites of all kinds of fuel, half-finished petroleum of the industrial furnace burning system,oil tank stocking protective gas and heat treatment protective gas etc.

Self-operating regulating valve:


Self-operated pressure control valve is composed of body assembly, actuator, positioning spring ,stainless steel bellows, external pressure tap and all that.The valve doesn't requires any auxiliary energy from external supply sources, by use of medium itself pressure as motive power, it can automatically control and stabilize the medium pressure.
It may be suitable for steam, non-corrosive gas , liquid and steam in various process systems.

Type :Cast globe valve

Actuator
Type :Multi-spring diaphragm or cylinder piston

Performance
Control Type:Pressure relief type (K), pressure regulator type (B)
Pressure Control Precision :±3%.
WorkingTemp:-10~350ºC

Principle of operation
1.Pressure regulator type
The process medium flows through the valve in indicated direction.The position of the valve plug determines the flow rate between the free area formed by plug and seat.The downstream pressure to be controlled is transmitted via pressure tap to the operating diaphragm where it is converted into a positioning force.This force adjusts the valve plug as a function of positioning spring force.The spring force can be adjusted using the set point nut.The pressure balanced structure can balanced out the forces created by the upstream pressure and acting on the valve plug.The downstream pressure is balance via the diaphragm area in the actuator.
2.Pressure relief type
The process medium flows through the valve in indicated direction.The position of the valve plug and the area released between plug and seat determine the flow rate.The operating diaphragm is tensioned by positioning spring and set point nut,so that the valve is closed by the spring force before relieved of pressure.The upstream pressure to be controlled is transmitted via pressure tap to the operating diaphragm where it is converted into a positioning force.This force is used for moving the vlave plug up according to the force of the positioning spring.When the force resulting from the upstream pressure rises above the adjusted set point, the valve opens propotionally to the change in pressure.Upstream and downstream pressures acting on the plug are balanced.

A Gas pressure relief(K type) ,no need of filter.
B Gas pressure regulator(B type), no need of filter.
C Liquid pressure relief(K type),in need of filter for unclean liquid.
D Liquid pressure regulator(B type),in need of filter for unclean liquid.
E Steam pressure relief(K type),in need of condenser ,and filter is recommended.
F Steam pressure regulator(B type),in need of condenser ,and filter is recommended.
Nominal DiameterDN15~250
Nominal PressurePN1.0~10.0MPa   ANSI 150~600lb
Density Temperature-20~120ºC
Connection TypeFlange
Body MaterialWCB\CF8\CF8M\CF8M
Plug MaterialNBR\PTFE
Seat Material304\316\316L
Flow CharacteristicQuick open
Rated R30:1
Control Accuracy5%
LeakageSoft SealingANSI Class VI
Pressure Adjusting Range0.25~4000KPa

Prod Model: ZZYVP
Markets: North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Control Type: Self-Operated Control Valve
Function: Pressure Relief Valve
Application: Tank, Pipe, Vessels
Medium: Air Vent
Switch: on-off
Valve Type: Pressure / Vacuum Relief Valves
Tianjin U-ideal Instrument Co., Ltd is a professional supplier of level instruments, flow meters, gates valves, pressure control valves, pneumatic and electric control ball valves, check valves, globe valve, pressure reducing and sustaining valve and steam traps and strainers from year 2006, are one of the repute' S manufactures in China, We have been cooperated with many famous companies all over the world, and quantities are satisfy all of our customers. Our products have passed the CE, GS, ISO9001 approvals.

Fluid water level switch(float switch, radar level switch, ultrasonic level switch, vertical level switch, horizontal level switch, flange level switch, thread level switch), tank gauges (Magnetic level gauges, glass tubular level gauges, sight glass level indicator, transparent level meter and reflective level gauge, weld glass water meter, oil level meter, fuel level control and indicator), drop-in type level sensor(cable level sensor, pole level switch, hydrostatic pressure level sensor and level transmitter, capacitive level sensor, ultrasonic level transmitter, non-contact level meter and float level transmitter) tank flange level indicators, radar RF level meter and so on.

Flow meters: Metal rotary flow meters(float flowmeter, rotameter, gas rotameter, bypass rotameter), vortex flow meters (steam vortex flowmeter) flow sensor, flow switches and liquid and gas turbine flow meters, conductive fluid electromagnetic flow meters, PD flow meter such as oval gear wheel flow meters, roots flow meters) precession vortex gas flow meters, flow sensor and other flowmeasurement instruments.

Ultrasonic Level, Ultrasonic Level Measurement, Level Measurement, Level Sensors, Ultrasonic Level Sensors, Ultrasonic Flow Meter, Ultrasonic Level Probe, Ultrasonic Meter, Ultrasonic Distance Meter, Ultrasonic Meters, Ultrasonic Level Detection, Ultrasonic SensÖ R, Ultrasonic Sensors, Ultrasonic Level Sensor, Level Sensor Ultrasonic, Ultrasonic Measuring, Ultrasonic Testing, Sensor Ultrasonic, Ultrasonic Measurement. Water Level Sensor Switch, Water Level Sensor, Water Level Sensor Circuit, Level Sensor Water, Liquid Level Sensor, Magnetic Level Switch, Magnetic Switch, Oil Level Sensor, Magnetic Float Switch, pressure transmitter, differential pressure transmitter.

Safety valve, pressure control valve, safety relief valve, pressure relief valve, pressure transmitters, pressure gauge, temperature gauge

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  • Tianjin U-Ideal Instrument Co., Ltd.

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