China Self-Operated Micropressure Regualtion Control Valve

Self-operated Micropressure Control Valve (ZZYP)

Summary:
Self-operated micropressure control valve adopts balanced single-seat valve with stable pressure, high precision and good tightness, which is used for controlling tiny differential pressure. It can adjust the set value at any time during operation. It can be widely applied in the medium pressure is not greater than 1.4 Mpa, the working temperature is not more than 120 ° C (150 ° C), regulating range in 0.14 to 7.2 KPa non-corrosive gas medium nitrogen sealing system of the valve after pressure.

Self-operated Micropressure Control ValveModelZZYPSizeDN15~150mmStructure FormStraight-through Single Seat Casting TypeBody MaterialCast steel(WCB);
Stainless Steel(304;316;316L)Norminal PressurePN1.0; PN1.6MPaWorking Temperature ≤150ºCApplication RangeNitrogen seal system for oil, chemical and liquid tanks.FeatureIt has stable pressure, high precision, good sealing performance. Besides, it can control the small differential pressure.

Body SpecificationNominal DiameterDN20~300mmFlange StandardANSI,JIS,GB,JB,DINBody MaterialCast steel(WCB)
stainless steel(CF8; CF9M)Pressure BalanceStainless Steel Bellows(DN15-125)
Balance Diaphragm(DN150-250)

Actuator SpecificationDiaphragm CapsuleIt is stamped with A3 steel sheet.DiaphragmNBR; FPM; EPDMSS304 MaterialSpring; Seat; Core; StemActuator CharacteristicIt has five kinds of adjustable voltage range.FeaturesIt is convenient to disassemble and assemble and adjust.

Rated flow coefficient & Noise measurement coefficient& Allowable Pressure DifferentialNominal
Diameter
(mm)
15
20
25
32
40
50
65
80
100Rated KvS 46.381620325080125Features of FlowQuick-
openingNominal
Pressure(MPa)1.6The Noise
Flow coefficient
Z ValueSpring 1Cr18Ni9 Convoluted DiaphragmNBRFPM EPDMWorking Temperature-40~120ºC-20~150ºC -50~150ºC

Application:
Self-operated micropressure control valve is an energy saving product which can use the pressure of the regulated medium as power source without external energy. It is suitable for various industrial fuel gases; petroleum in process or oil storage tanks; protection gas micro pressure automatic adjustment and other occasions.
Working Principle:
The valve adopts large diaphragm actuator, the output force is large and stable, and the control precision is high. It is extremely sensitive to small changes in pressure flow. The valve core adopts single seat flow design. A balancing diaphragm is mounted on the bonnet. Compared with the regulating spring of the film actuator, when the pressure fails to reach the set value, the pressure behind the valve will increase, and vice versa.
Company Introduction:
Zhitai Valve Co., Ltd is a member of Valve Association of Longwan District, is located in Longwan Central Industrial Zone, Wenzhou City. It'a professional technology company integrated with development, manufacturing, sales, and after-sales services of valve actuators and and self-controlled valves. Presently, our main products include: pneumatic actuators, pneumatic valves and pneumatic control valves; electric actuators, electeic valves and eletric control valves; automatic control products. Our products are widely applied in natural gas, electricity, petroleum, chemical, metallurgical, construction, pharmacy, paper, printing and dying. Zhitai series actuators and valves are the best choice for automatic fluid control engineering and equipment manufacturing. We sincerely welcome customers from home and abrode to visit us for supervision, communication and cooperation. It's a great honor for us to cooperate with you.