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

High Precision Pilot Operated Control Valve , 150 lb Pressure Pneumatic Control Valve

Self-operated pressure single-seat control valve with pilot

ZZZYP 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.

Characteristic:

    1.It’s without any external driving energy, and low equipment cost;

2.Simple structure&small maintenance workload;

3.Pressure set point adjustment is convenient

4.Taking pressure from body,and pipeline installation is convenient;

5.Sensitive control&high control precision

1.Main technical parameters                                                            Table 1

DN(mm)	15	20	25	32	40	50	65	80	100	125	150
Rated flow coefficient Kv	3.2	6.3	10	16	25	40	63	100	160	250	400
Rated travel L(mm)	10	20	30
Actuator type(cm2)	200	400	600
PN(MPa)	1.6
Inherent flow characteristic	Quick opening
Action type	Press to close (control outlet), press to open (control inlet)
Structure type	Single seat
Inherent adjustable ratio R	30
Regulation accuracy (%)	±5
Reduction ratio	500︰1
Medium temperature (℃)	Gas＜120℃
Allowable leakage	Ⅵ,Zero leakage (soft sealing)
Flange connection	PN1.6MPa according to HG/T20592-2009 RF,Raised surface
Pressure regulating range (KPa)	0.25～3,0.5～5,3～10,5～14,10～20,20～30 25～40,40～55,50～70,70～85,80～100

2.Main technical parameters       KV≤7                                                 Table 2

DN(mm)	15    20   25
Seat diameter dn(mm)	20
Rated flow coefficient Kv	0.2	0.32	0.5	0.8	1.2	2.0	3.2	7

Note:1.Production can be according to customers’ special requirements;

  2.Flange can be produced according to ANSI,JIS, etc.; 

  3.When the flow is small the diameter stays unchanged; use valve throttling device to achieve customers’ requirements.