Aoluosen Valve Manufacture Co.,Ltd　　　　

Shanghai.China Aoluosen Valve Manufacture Co.,Ltd

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ZZYP Self-powered pressure regulating valve

Summary
ZZYP type self-powered pressure regulating valve consists of body, bonnet, seat and disc etc. being a kind of energy-saving products autmatically adjusting the pressure just depending on the pressure change of the media own without the outside power, usually used to the pressure-controlling equipment in which the media are liquid, gas and vapour etc. abroad applied to oil, chemical, metallurgy and light industry etc. fields or city hot-providing, warm-keeping system.
The nominal pressure classes include PN16,40, nominal port size are from 20mm to 300mm, suitable temperature is not more than 350℃. Many specification are for selection.

The materials for the main parts
Body ：ZG230～450、ZG1Cr18Ni9Ti、ZGCr18Ni12Mo2Ti
Bonnet ：1Cr18Ni9Ti、Cr18Ni12Mo2Ti
Seat ：1Cr18Ni9Ti、Cr18Ni12Mo2Ti
Stem ：1Cr18Ni9Ti、Cr18Ni12Mo2Ti
Film Cover ：A3、1Cr18Ni9Ti
Packing: PTFE, flexible graphite
Film: Bura-N, NBR, Viton.

Main technical parameters

Nominal port size DN（mm）		20	25	32	40	50	65	80	100	125	150	200	250	300
Rating Flux coefficient Kv		7	11	20	30	48	75	120	190	300	480	760	1100	1750
Rating Travel L（mm）		8		10		14	20		25	40		50	60	70
Nominal pressure PN（MPa）		1.6、4.0
Adjustable pressure range（KPa）		15～50、40～80、60～100、80～140、120～180、160～220、200～260、 240～300、280～350、330～400、380～450、430～500、480～560、540～620、 600～700、680～800、780～900、880～1000、600～1500、1000～2500
Intrinsic flux characters		prompt open
Adjusting Precise （ % ）		±5
Using temperature（℃）		≤350
Allowed 　leakage	Metal to metal sealing(1/h)	Single seat: ≤10 -4 × valve rating capacity ( Class IV ), double seats and sleeve:≤5×10 -3 valve rating capacity ( Class II ),
	Soft sealing (m1/min)	0.15		0.30		0.45	0.60	0.90	1.70	4.0		6.75	11.10	16.0
the ratio of decompression	max	10
	min	1.25

External dimensions and weight （mm）

DN			20	25	32	40	50	65	80	100	125	150	200	250	300
B			383		512		603	862		1023	1380		1800	2000	2200
L			150	160	180	200	230	290	310	350	400	480	600	730	850
Adjustable pressure range KPa	15-140	H	475		520		540	710		780	840	880	915	940	1000
		A	280		308
	130-300	H	455		500		520	690		760	800	870	880	900	950
		A	230
	280-500	H	450		490		510	680		750	790	860	870	890	940
		A	176					194			280
	480-1000	H	445		480			670		740	780	850	860	880	930
		A	176					194			280
	600-1500	H	445		570		600	820		890	950		1000	1100	1200
		A	85		96
	1000-2500	H	445		570		600	820		890	950		1000	1100	1200
		A	85		96
Weight Kg			26		37		42	72	90	114	130	144	180	200	250
Whorl			M16×1.5