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Description Material Performance Product Size Specifications

ZZYVP nitrogen valve closure by the control valve, actuator and command device, is a kind of no external energy, by adjusting its medium pressure as the power source of energy-saving products, automatic adjustment of constant pressure valve, the pressure control precision is high, twice as high than the general self regulating valve, suitable for high control precision.
Note: parameters are for reference only, or are not full. Valve can be used in accordance with the requirements of different pressure, material, diameter, drive, etc.. Specific please contact or online advisory contact

Valve body：ZG230～450、ZG1Cr18Ni9Ti ZGCr18Ni12Mo2Ti
Valve core：1Cr18Ni9Ti Cr18Ni12Mo2Ti
Valve seat：1Cr18Ni9Ti Cr18Ni12Mo2Ti
corrugated pipe：1Cr18Ni9Ti
Membrane cover：A3、1Cr18Ni9Ti
Diaphragm：Butyl rubber, preserved oil resistant rubber, fluorine rubber

Nominal diameter DN（mm）	20			25	40		50	65	80	100
Valve seat diameter（mm）	6	15	20	25	32	40	50	65	80	100
Rated flow coefficient KV	3.2	5	8	11	20	50	80	100	160
Pressure regulating range KPa	0.5～5.5、5～10、9～14、13～19、18～24、23～28 27～33、31～38、36～44、42～51、49～58、56～66
Nominal pressure PN（MPa）	1.0 1.6
Adjusted medium temperature （°C）	≤80
Adjustment precision（%）	±10
Allowable leakage	10-4XRated capacity of valve

Nominal diameter DN	20	25	32	40	50	65	80	100
A	395
H	680	690	710	720	735	797	837	1050
L	185	200	205	222	254	276	298	352
Flange standard	GB:1.6、2.5、4.0MPa ANSI:150、JIS:10K

Flange standard：GB9113-88；
Flange sealing surface：Convex；
Signal interface：Internal screw threadM16X1.5；
Body flange and flange end face distance can be specified by the user standards.
As ANSI、JIS、JPI Such standard。

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