Air Release Valve for Class 250 Applications, EN 1074-4 Design

• Customization: Available
• Type: Compound Exhaust Valve
• Material: Ductile Iron/Stainless Steel
• Model NO.: AV4F3F/AV3F2F
• Pressure range: PN10-16-25-40/Class 125-150-250
• Design: EN 1074-4/AWWA C-512
• Flange drilling: EN 1092-2 or ANSI
• Coating: Thermoplastic Powder Epoxy
• Transport Package: Wooden Box
• Specification: DN50-DN300
• Trademark: WALTER, OEM
• Origin: China
• Production Capacity: 5000pieces/Year

Product Description

 

Combined Air Vacuum & Release Valve
AV4F3F/AV3F2F

Product Description

Combined Air Vacuum & Release Valves auto-matically vent trapped air from the pipeline. They also allow large amounts of air to reenter the line in the event of a rapid, large scale fluid discharge. Air Vacuum & Release Valves are essential for pipeline efficiency and water hammer protection.
 

The best way to protect your piping system from these negative conditions is to utilize WALTER air valves in the locations most likely to experience air or vacuum build-up:high-points in the pipeline, adjacent to pumps, in long pipe runs and at deep well installations.

 

Detailed Photos

 

Material

No.	Part Name	Material			Remark
		Option 1	Option 2	Option 3
1	Valve Body	DI	CF8	CF8M
2	Screw	A2	A2	A4
3	Plate Ring	SS304	SS304	SS316
4	Lower float	PP	PP	PP
5	Seal	EPDM	FKM	FKM
6	Seal retainer	SS304	SS304	SS316
7	Screw	A2	A2	A4
8	Middle float	PP	PP	PP	AV4F3F model only
9	Nozzle	SS304	SS304	SS316
10	O-Ring	NBR	FKM	FKM	AV4F3F model only
11	Top float	PP	PP	PP
12	Seal ring	FKM	FKM	FKM
13	Top flange	SS304	SS304	SS316
14	Screen	SS304	SS304	SS361
15	Cap	SS304	SS304	SS316
16	Screw	A2	A2	A4
17	Bolt	A2	A2	A4
18	Nut	A2	A2	A4
19	Washer	A2	A2	A4
20	Bolt	A2	A2	A4

 

Data sheet

 

Company Profile

Suzhou Walter is a professional china-based manufacturer of water system valves and always committed to providing customers with quality products and services.

The company has been established for more than 30 years, and has served more than 50 countries and regions around the world,the professional level High quality service worthy of your trust!