Delivery Time:7-15 working days after received your payment
Certification:CE,TRCU,ISO9001

Low Leakage Piston Type Control Valve , Single Seat Pressure Regulator Valve

Self-operated Pressure Single-seat Control Valve (piston type)

General

ZZY Series of Self-operated Control Valve there is no need for any external power source, only used fluid own energy to adjusted the valve opening automatically, and pressure set value can be adjusted freely during on working condition. With advantages of quick-opening flow characteristic, flexible operation, good sealing performance, stable fluid pressure, high regulating precision level and low leakage etc. it is widely used in automatic control of the inlet-valve and outlet-valve pressure reduction, stabilization of the fluids, such as air, liquid and vapor in various industrial equipments, like industries in petroleum, chemical engineering, electric power, metallurgy, food, light textile, machinery manufacturing and residential buildings, etc. with the condenser, it can continuous on working under 350 degrees steam condition.

Characteristics

1, Without any external driving energy, low cost, Suitable for explosive environment；

2, Simple structure, little maintenance work;

3, The set point can be adjusted and the range is wide, convenient for the user to do continuous adjustment;

4,B ody pressure, convenient pipe installation

5. Using the pressure balance valve structure, no packing, frictionless movable components, sensitive control, high control precision.

Specifications and technical parameters

1.Main technical parameters of ZZY standard KV﹥7                                        Table 1

DN(mm)	25	32	40	50	65	80	100	125	150	200	250	300
Rated flow coefficient Kv	11	17	29	43	70	110	169	275	440	690	960	1300
Rated travel L(mm)	10	14	20	25	40	60
Actuator type	Diaphragm type(Set pressure≤0.7MPa),Cylinder type(Set pressure＞0.8MPa),Bellows type
Actuator	Set point KPa	100	200	300	700	1000	1500	2000	3000	4000
Effective area cm2	400	280	200	100	71	71	50	33	28
PN(MPa)	1.6  4.0  6.4  10.0
Inherent flow characteristic	Quick open
Action type	Press to close (control outlet), Press to open (control inlet)
Structure type	Single seat, Cage
Inherent adjustable ratio R	30
Reduction ratio	1