ZZYM type self operated pressure regulating valve (with condenser)-Fornitore globale

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No. 18 Xihua Road, Luqiao, Oubei, Wenzhou City, Zhejiang Province

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ZZYM type self operated pressure regulating valve (with condenser)

Product Model: ZZYM Type Product Features: ZZYP/ZZYM/ZZYN Self operated Pressure Regulating Valve (with Condenser) Series products include single seat

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ZZYM type self operated pressure regulating valve (with condenser)

The ZZYP/ZZYM/ZZYN self operated pressure regulating valve (with condenser) series products have three structures: single seat (ZZYP), sleeve (ZZYM), and double (ZZYN); 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.

ZZYP/ZZYM/ZZYN self operated pressure regulating valve (with condenser)

1、 Overview of Self Operated Pressure Regulating Valve Products

The self operated pressure regulating valve series products have three structures: single seat (ZZYP), sleeve (ZZYM), and double seat (ZZYN); 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.

ZZY type self operated pressure regulating valve does not require external energy. It uses the energy of the regulated medium itself as a power source to introduce the actuator to control the position of the valve core, change the pressure difference and flow rate at both ends, and stabilize the pressure before (or after) the valve. Self operated pressure regulating valves have the advantages of sensitive action, good sealing, and small pressure set point wave power. Self operated pressure regulating valves are widely used in automatic control of gas, liquid, and medium pressure stabilization or pressure relief stabilization.

2、 Product features of self operated pressure regulating valve

(1) 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.
(2) The pressure segmentation range is fine and intersecting with each other, with high adjustment accuracy.
(3) The pressure setting value can be continuously set during operation.
(4) 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.
(5) Rubber diaphragm type detection, with high precision and sensitive action of the actuator.
(6) Adopting a pressure balance mechanism to make the regulating valve responsive and precise in control.

3、 Main technical parameters of self operated pressure regulating valve

Nominal diameter DN		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
Noise measurement coefficient Z value		0.6	0.6	0.6	0.55	0.55	0.5	0.5	0.45	0.4	0.35	0.3	0.2	0.2
Allowable pressure difference (Mpa)	PN16	1.6								1.5		1.2	1,0
	PN40	2.0
Valve cover form		Standard type -17~+300 ℃, high temperature type+300 ℃~+450 ℃
Cover type		Bolt compression type
Packing		V-shaped PTFE packing, PTFE impregnated asbestos packing, asbestos textile packing, graphite packing
Valve core form		Single seat, sleeve type valve core
Traffic characteristics		linear

4、 Technical parameters of self operated pressure regulating valve actuator

Effective area (cm)	32※	80	250	630
Pressure setting range (MPa)	0.8～1.6	0.1～0.6	0.015～0.15	0.005～0.035
Pressure setting range (MPa)	0.3～1.2	0.05～0.3	0.01～0.07	0.005～0.035
Ensure the normal operation of the pressure valve Minimum pressure difference △ Pmin (MPa)	≥0.05	≥0.04	≥0.01	≥0.005
Maximum allowable pressure difference between upper and lower membrane chambers (MPa)	2.0	1.25	0.4	0.15
material	Film cover: galvanized steel plate; Diaphragm: EPDM or FKM sandwiching fibers
Control pipelines and joints	Copper or steel pipe 10 × 1; Card sleeve connector: R1/4'

Note: ※ The pressure setting range corresponding to this effective area is not applicable to DN150-250.

5、 Main performance indicators of self operated pressure regulating valve

Set value deviation		±8%
Allowable leakage amount (Under specified experimental conditions)	hard seal	4 x 0.01% rated capacity of valve
	soft seal	DN15～50	DN65～125	DN150～250
		10 bubbles/min	20 bubbles/min	40 bubbles/min

6、 Maximum operating temperature of self operated pressure regulating valve

Nominal Diameter		15～125mm	150～250mm
seal type	hard seal	≤150℃	≤140℃
		Cooling tank ≤ 200 ℃	Cooling tank and extension parts ≤ 200 ℃
		Cooling tank and heat sink ≤ 350 ℃ ※	Cooling tank and extension parts ≤ 300 ℃ ※
	soft seal	≤150℃

Note: ※ indicates that the valve is allowed to operate at a certain temperature and is only effective when the medium is steam. A PN40 valve body is required to withstand temperatures up to 350 ℃.

6、 Main component materials of self operated pressure regulating valve

MATERIAL		C（WCB）	P（304）	R（316）
main part	valve body	WCB（ZG230-450）	ZG1Cr18Ni9Ti（304）	ZG1Cr18Ni12Mo2Ti（316）
	Valve core and seat	1Cr18Ni9Ti（304）	1Cr18Ni9Ti（304）	1Cr18Ni12Mo2Ti（316）
	valve stem	1Cr18Ni9Ti	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
	diaphragm	Nitrile rubber, ethylene propylene rubber, chloroprene rubber, oil resistant rubber
	Membrane cover	A3 and A4 steel coated with tetrafluoroethylene
	filler	Polytetrafluoroethylene, flexible graphite
	spring	60Si2Mn
	Guide Sleeve	HPb59-1

7、 Main external dimensions of self operated pressure regulating valve

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
Distance between flange ends (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
	200-500	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		980	950		1000	1100	1200
		A	85		96
Approximately weight (Kg)			26		37		42	72	90	114	130	144	180	200	250
Pressure pipe interface thread			M16X1.5

Ordering Notice: Please fill in the "Specification Sheet" or indicate the following content when placing an order:

1. Product model
2. Nominal pressure
3. Nominal diameter and rated flow coefficient Kv
4. Signal pressure and spring range
5. Traffic characteristics
6. Valve switching method
7. Working temperature range of the medium
8. Valve body and valve core materials
9. Is there an attachment? Please specify the attachment model
10. Are there any other special requirements

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