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ZZYP Self pressure regulating valve


Self pressure regulating valve（Without the condenser）	Self pressure regulating valve（With condenser）

1.Self pressure regulating valve Product overview

Self pressure regulating valve is a kind of without external energy, using controlled the media's own energy when the power source, is introduced to perform film chamber to produce thrust, throttle control element to achieve automatic adjustment. Comprehensive function can measure, execution, control. In the absence of gas, non electric sites. Widely used in petroleum, chemical, power, light industry, printing and dyeing industry in the automatic control system of gas, liquid and various equipment steam medium pressure regulator (for deceleration, pressure regulating valve after the pressure relief, pressure) (for the valve before the pressure adjustment automatic control). According to different working conditions can choose different structure of the valve body types and different execution mechanism, in order to achieve the best control effect.

2.Self pressure regulating valve Product model

Category	Model	Category	Model
Single seat pressure closed type	ZZYP-16～64B	Single seat pressure closed type	ZZYP-16～64K
Two seater pressure closed type	ZZYN-16～64B	Two seater pressure closed type	ZZYN-16～64K
Sleeve pressure closed type	ZZYM-16～64B	Sleeve pressure closed type	ZZYM-16～64K

PS：
1.Pressure closed type used in pressure regulating valve, when the valve after the pressure increases, the valve is closed, to achieve the purpose of decompression, stabilization。
2.Pressure type used in pressure regulating valve, when the valve after the pressure rises, the valve is opened, in order to achieve the purpose of decompression, stabilization。

3.Self pressure regulating valve Main technical parameters

DN（mm）	20				25	32	40	50	65	80	100	125	150	200
Seat DN（mm）	10	12	15	20	25	32	40	50	65	80	100	125	150	200
rated flow coefficient Kv	1.8	2.4	4.4	4	11	20	30	48	75	120	190	300	480	760
permissible pressure（MPa）	2.5					2.0			1.6			1.0
PN（MPa）	1.6　4.0　6.4
inherent flow charac	Quick open
Ensure that transfer the minimum pressure valve work difference P（MPa）	0.05
Pressure segment range （KPa）	15～50　　40～80　　60～100　　80～140　　120～80 160～220　200～260　240～300　280～350　330～400 380～450　430～500　480～560　540～620　600～700 680～800　780～900　800～1000　900～2000
Working temperature ℃	Liquid≤140;气体≤80；With the condenser and heat sink ≤350
Suitable for medium	Low viscosity liquid, gas, steam
Flange size, type	PN10、16、40GB9113-88、PN64JB/T7-94；PN10 
structure length	According to GB12221-89 standard
accessories	Condenser (for medium for steam occasions), such as heat sinks.
Actuator signal interface	Internal thread M16×1.5

ps：Pressure segment range can be designed according to user requirements.

4.Self pressure regulating valve Main performance

Control precision ％		±8
Allowable leakage	Hard seal（L/H）	Single seat（Ⅳ级）：≤10-4 Rated capacity：Two seat, sleeve（Ⅱ级）、≤5×10-3×Rated capacity
	Soft seal（ml/min）	DN(mm)
		20	25	32	40	50	65	80	100	125	150	200
		0.15		0.3		0.45	0.6	0.9	1.7	4.0		6.75

5.Self pressure regulating valve Dimension

DN			20	25	32	40	50	65	80	100	125	150	200	250	300
Flange size(B)			383		512		603	862		1023	1380		1800	2000	2200
Flanged end spacing(L)			150	160	180	200	230	290	310	350	400	480	600	730	850
Pressure regulating range (KPa)	15-140	H	475		520		540	710		780	840	880	915	940	1000
	15-140	A	280		308
	200-500	H	455		500		520	690		760	800	870	880	900	950
	200-500	A	230
	120-300	H	450		490		510	680		750	790	860	870	890	940
	120-300	A	176					194			280
	480-1000	H	445		480			670		740	780	850	860	880	930
	480-1000	A	176					194			280
	600-1500	H	445		570		600	820		890	950		1000	1100	1200
	600-1500	A	85		96
	1000-2500	H	445		570		600	820		980	950		1000	1100	1200
	1000-2500	A	85		96
Approximate weight(Kg)			26		37		42	72	90	114	130	144	180	200	250

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