Direct Acting Spring Diaphragm Pressure Reducing Valve (GAY42X)

• Certification: ISO
• Temperature: Ordinary Temperature
• Connection: Flange
• Valve Seat: Single-Seat
• Structure: Spring Diaphragm
• Material: C.S
• Model NO.: GAY42X
• Size: 1/2"-24"
• Category: Pressure Reducing Valve
• Connecting Type: Flange
• Medium: Water and Other Noncorrosive Liquid.
• Working Temperature: Below 80 Deg C
• Usage: Pressure Reducing
• Application: Hot and Cold Water Supply Systems., etc
• Transport Package: Carton, Plywood Case
• Specification: ISO 9001
• Trademark: GOOLE, OEM
• Origin: China(Mainland)
• HS Code: 8481804090
• Production Capacity: 10000PCS/Year

Product Description

Direct Acting Spring Diaphragm Pressure Reducing Valve (GAY42X)

Product Description

Brief Introduction.

This series pressure reducing valve is a new type regulating valve which adopts piston to replace the diaphragm. The performance is reliable and it's can be used for a long time. The down pressure can be adjusted according to the requirement, and it can be set at a fixed pressure in the application, which won't be changed as the fluctuation of the up pressure and the flowing rate.

Application

Field of Application.

Product: GAY42X Direct Acting Spring Diaphragm Pressure Reducing Valve.
Pressure Rating: 1.0- 2.5Mpa
Specification: DN15-500
Material: WCB/according to customers' requirement.
Standard flanges: DIN, ANSI, JIS;

Product Details

Material of Main Component. 

Name of component	Material of component
Bottom Cap	WCB
Spring	50CrVA
Body	WCB
DISC	2Cr13
Seat Ring	NBR
Seat	2Cr13
Stem	2Cr13
Cylinder Liner	2Cr13
Diaphragm	NBR
Returnng Spring	60Si2Mn
Bonet	WCB

Main External Dimensions.
 

 

  

DN	external dimension
	L	H	H1
	PN1.0,1.6, 2.5	PN1.0,1.6,2.5	PN1.0,1.62.5
15	160	225	90
20	160	265	98
25	180	265	110
32	200	265	110
40	220	320	125
50	250	320	125
65	280	325	130
80	310	385	160
100	350	385	170
125	400	430	200
150	450	430	210
200	500	560	240
250	650	690	290
300	800	800	335
350	850	880	375
400	900	980	405
500	950	1130	465

 

Product Parameters

 

Main Technical Parameters and Indexes of Performance.

Nominal pressure	PN1.6Mpa	PN2.5Mpa	PN4.0Mpa	PN6.4Mpa
Tested pressure of shell	2.4Mpa	3.75Mpa	6.0Mpa	9.6Mpa
Sealing test pressure	1.6Mpa	2.5Mpa	4.0Mpa	6.4Mpa
Maximum upstream pressure	1.6Mpa	2.5Mpa	4.0Mpa	6.4Mpa
Pressure range of outlet	0.2-1.0Mpa	0.2-1.6Mpa	0.2-2.5Mpa	0.5-3.5Mpa
Minimum differential pressure	0.2Mpa	0.2Mpa	0.2Mpa	0.4Mpa
Medium	Steam, water, etc.
Operating temperature	425

 
*the shell test does not include membrane and top cover.

 Flow Characteristics.

DN	15	20	25	32	40	50	65	80	100	125	150	200	250	300	350	400	500
Cv	1	2.5	4	6.5	9	16	25	36	64	100	140	250	400	570	780	1020	1500

 

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