Pressure Range Class 150-300 Relief Valve, EN 1074-5 Design

• Customization: Available
• Temperature: Low Temperature
• Media: Oil, Water
• Model NO.: F8055
• Standard: Standard
• Connection Mode: Flange
• Power: Hydraulic
• Material: Ductile Iron/Stainless Steel/Bronze
• Type: Self-Operated
• Pressure range: PN10-16-25-40/Class 150-300
• Design: EN 1074-5
• Face to face: EN 558-1 Series 1
• Flange drilling: EN 1092-2/ISO 7005-2/ANSI/AS2129 or AS4087
• Coating: Thermoplastic Powder Epoxy
• Transport Package: Wooden Box
• Specification: DN50-DN1200
• Trademark: WALTER, OEM
• Origin: China
• Production Capacity: 5000pieces/Year

Product Description

 

Surge Anticipating Relief Valve
F8055 Series

Product Description

WALTER F8055 Surge Anticipating Relief Valve is mounted in a tee, downstream of the pump check valves. It is designed to anticipate surges to avoid the severe water hammer often associated with power failure surges. When pumping systems are started and stopped gradually, harmful surges do not occur. However, should a power failure take place, the abrupt stopping of the pump can cause dangerous surges in the system which could result in severe equipment damage. Power failure to a pump will usually result in a down surge in pressure, followed by an up surge in pressure. The surge control valve opens on the initial low pressure wave, diverting the returning high pressure wave from the system. In effect, the valve has anticipated the returning high pressure wave and is open to dissipate the damage causing surge. The valve will then close slowly without generating any further pressure surges.

Detailed Photos

Technical Data

 

Product Parameters

DN50-350

No.	Parts Name	Material	Standard
1	Body	Ductile Iron	GJS 500-7
2	Seat	Stainless Steel	AISI 304
3	O-Ring	Rubber	NBR
4	O-Ring	Rubber	NBR
5	Bolt	Stainless Steel	A2-70
6	Washer	Stainless Steel	A2
7	Bonnet	Ductile Iron	GJS 500-7
8	Bush	Brass	C37710
9	Spring	Stainless Steel	AISI 304
10	Nut	Stainless Steel	A2
11	Diaphragm	Rubber+Nylon	EPDM+Nylon Fabric
12	Fixing Holder	Ductile Iron	GJS 500-7
13	Disc Holder	Ductile Iron	GJS 500-7
14	Seal	Rubber	EPDM
15	Seat Retainer	Stainless Steel	AISI 304
16	Stem	Stainless Steel	AISI 304
17	Plug	Stainless Steel	AISI 304

DN400-1200
 

 

 

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!