API Self-Operated Temperature Regulation/ Control Valve

Self-operated Temperature Control Valve(ZZWP)Summary:
Self-operated temperature control valve can work normally without power and the air source . It adopts the principle of thermal expansion of liquid and liquid incompressibility to control automaticly. Its nominal pressure is PN1.6; PN4.0; nominal diameter is 15-150mm; temperature range is 0 ~ 250 ºC. THer are various kinds of control valves to be choosed.
Self-operated Temperature Control ValveModelZZWP-16K; ZZWP-16BSizeDN15~150mmStructure FormPlunger TypeBody MaterialCast steel(WCB);
Stainless Steel(304;316;316L)Norminal PressurePN1.6; PN2.5; PN4.0MPaWorking Temperature0~250ºCApplication RangeLiquid, gas and steam for special occasions.FeatureIt can control temperature with no power supply and air source.Body SpecificationNominal DiameterDN20~200mmFlange StandardANSI,JIS,GB,JB,DINBody MaterialCast steel; Fluorine PTFE(F46)Working Temperature0~250ºCPlug MaterialStainless Steel(metal-to-metal)
Stainless steel inlaid with rubber ring(Soft Seal)Pressure BalanceStainless Steel Bellows(DN15-125)
Balance Diaphragm(DN150-250)Temperature Rangeof Control ValveAllowable Working TemperatureNominal diameterDN15-150mm
Sealing Typemetal-to-metal≤150ºCcooling fin≤200ºCPN16 Valve&cooling fin≤350ºCPN40 Valve&cooling fin≤350ºCSoft Seal≤150ºCRated flow coefficient& Noise measurement coefficient& Allowable Pressure DifferentialNominal
Diameter
(mm)
15
20
25
32
40
50
65
80
100
125
150Rated KvS46.381620325080125160280The Noise
Flow coefficient
Z Value
0.6
0.6
0.6
0.55
0.55
0.5
0.5
0.45
0.4
0.35
0.3Allowable
Pressure
DifferentialPN160.6
1.5
1.0PN402.0
Working Principle:
Self-operated temperature control valve adopts the principle of incompressibility of temperature sensitive liquid to automatically adjust the temperature. It has two types: heating type and cooling type. When the temperature of the controlled medium increases, the control valve closes (heating type); when the temperature of the controlled medium increases, the control valve opens (cooling type).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.