China Self-Operated Pressure Regulation Control Valve

Self-operated Pressure Control Valve (ZZYP)

Summary:
ZZYP self-operated pressure control valve is mainly composed of control valve, actuator and a set pressure spring. It is suitable for non-corrosive liquids, gases and steam. The pressure before (when the pressure in front of the valve is increased, the control valve opens) or after (when the pressure in the valve is increased, the control valve opens) the pressure is controlled in the system piping. It is widely used in petroleum, chemical industry, electric power, metallurgy, medicine, food, textile, machinery, hvac. The action form has the pressure adjustment after reducing pressure with the valve (type B) and the pressure adjustment before reducing pressure with the valve (type K).

Self-operated Pressure Control ValveModelZZYP-16K; ZZYP-16BSizeDN20~300mmStructure FormStraight-through Casting Ball TypeBody MaterialCast steel(WCB);
Stainless Steel(304;316;316L)Norminal PressurePN1.6; PN2.5; PN4.0; PN6.4MPaWorking Temperature -17~+450ºCApplication RangeGas; liquid; steam mediaFeatureIt requires no external energy and can be self-regulated by pipeline pressure.

Body SpecificationNominal DiameterDN20~300mmFlange StandardANSI,JIS,GB,JB,DINBody MaterialCast steel; Fluorine PTFE(F46)Working Temperature -17~+450ºCGland TypeBolted TypePacking MaterialV-type PTFE;
Teflon asbestos;
graphite packing

Rated Cv & Rated Stroke & Pressure Reducing RatioNominal diameter
(DNmm)
20
25
32
40
50
65
80
100
125
150
200
250
300Rated KvS7112030487512019030048075011001750Rated Stroke(mm)81114202540506070Pressure Reducing RatioMaximum 10.1Minimum 10.8

Features:
Compared with manual control valve, self-operated pressure control valve has the advantage of being able to adjust automatically. Relative to the electric control valver, it has the advantage of no external power. Self-operated valve relies on the pressure and temperature flowing through the valve medium itself as energy to drive the valve to work automatically, and it do not need power supply and secondary instruments.
Function:
Self-operated valves are used at the output end of the valve feedback signal (pressure, pressure difference, temperature) through the signal pipe to the actuator drive valve disc to change the opening of the valve, to adjust the pressure, flow, temperature purposes. In closed water circulation system (such as hot water heating system, air conditioning chilled water system), the correct use of this valve can be very convenient to achieve the flow distribution of the system; The dynamic balance of the system can be realized. Can greatly simplify the debugging of the system; Can stabilize the working state of the pump.
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.