ZZY type self operated cylinder regulating valve-Fornitore globale

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13588375207
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Lingqiao Guangming Industrial Zone, Fuyang City, Hangzhou Suburbs

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ZZY type self operated cylinder regulating valve

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Product details

instructions

ZZY type self regulating valve does not require external energy. It uses the energy of the regulated medium as a power source to introduce the control valve core position into the actuator, and changes the pressure difference and flow rate at both ends to stabilize the pressure before (or after) the valve. It has the advantages of sensitive action, good sealing, and small pressure setting point wave power, and is widely used in automatic control of pressure reduction and stabilization or release and stabilization of gas, liquid, and steam media.
This series of products includes single seat (ZZYP), sleeve (ZZYM), double seat (ZZYN), and three structures; There are two types of actuators: membrane type and piston type; The types of action include pressure regulation after the pressure reducing valve (Type B) and pressure regulation before the pressure relief valve (Type K). The nominal pressure rating of the product includes PN16, 40, and 64; Valve body diameter range DN20-300; There are three levels of leakage: Level II, Level IV, and Level VI; The traffic characteristic is fast opening; The pressure is adjusted in stages from 15 to 2500Kpa. Can be combined as needed to meet user operating requirements.

Product Features

Self operated pressure regulating valves do not require external energy and can work in places without electricity or gas, which is both convenient and energy-saving.
The pressure segmentation range is fine and intersecting with each other, with high adjustment accuracy.
The pressure setting value can be continuously set during operation.
For regulating the pressure after the valve, the ratio of the pressure before the valve to the pressure after the valve can be 10:1-10:8.
Rubber diaphragm type detection, with high precision and sensitive action of the actuator.
Adopting a pressure balance mechanism to make the regulating valve responsive and precise in control.

Part material

Valve body: ZG230-450、ZG1Cr18Ni9Ti 、ZGCr18Ni12Mo2Ti

Valve core: 1Cr18Ni9Ti, Cr18Ni12Mo2Ti Valve seat: 1Cr18Ni9Ti Cr18Ni12Mo2Ti

Valve stem: 1Cr18Ni9Ti Cr18Ni12Mo2Ti

Membrane cover: A3, A3 steel coated with tetrafluoroethylene stainless steel

Packing: Nitrile, Ethylene Propylene, Fluorine, Oil Resistant Rubber

Specifications and Technical Parameters

Nominal diameter DN (mm)		20	25	32		40		50	65	80		100		125		150		200		250		300
Rated flow coefficient (KV)		7	11	20		30		48	75	120		190		300		480		760		1100		1750
Rated stroke (mm)		8		10				14	20			25		40				50		60		70
Nominal pressure PN (Mpa)		1.6, 4.0, 6.4
Pressure regulation range (MPa a)		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 980～1500 1000～2500
Flow characteristics (℃)		Hurry up
Adjustment accuracy (%)		±5
Operating temperature (℃)		≤350
Allowable leakage amount	Hard seal (1/h)	Single seat: ≤ Rated capacity of 10-4 valves (Class IV); Double seat, sleeve: ≤ 5 × 10 ˉ 3 valve rated capacity (Class II)
	Soft seal (m1/h)	0.15			0.30		0.45		0.60		0.90		1.7		4.0		6.75		11.10		16.0
Pressure reduction ratio	maximum	10
	minimum	1.25

External dimensions and weight

Nominal diameter DN			20	25	32	40	50	65	80	100	125	150	200	250	300
Flange connection size B			383		512		603	862		1023	1380		1800	2000	2200
Flange end distance L			150	160	180	200	230	290	310	350	400	480	600	730	850
Pressure regulation range kpa	15-140	H	475		520		540	710		780	840	880	915	940	1000
		A	280		308
	280-500	H	455		500		520	690		760	800	870	880	900	950
		A	230
	120-300	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
Accumulated lines on the pressure pipe joint			M16×1.5

Connection size and standard

Flange standard: Casting method according to BG9113-88 JB/79-94

Flange sealing surface type: PN16 convex surface

PN40、 64 is concave convex, and the valve body is concave convex

Structure length according to BG12221-98

Execution mechanism signal interface: Internal thread M16 × 1.5

The distance between the valve body flange and the flange end face can be manufactured according to the standard specified by the user. For example: ANSI, JIS, DIN, etc.

Ordering Notice

Please provide the following information when placing an order:

Name and model of regulating valve

Nominal pressure Mpa

Nominal diameter (mm)

Rated flow coefficient (Kv)

Inherent flow characteristics

Media name

Working temperature and range

Operation mode of the whole machine

Pressure set point and adjustment range

Valve body, valve internals, and packing materials

Attached attachments

Other special requirements

Other similar products:ZZYP self operated pressure regulating valve ZSY self operated regulating valve (dual circuit) V230 self regulating valve

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