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Categories | Surge Anticipating Valve |
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Brand Name: | AFC,OEM |
Model Number: | A2A5 |
Certification: | ISO 9001 |
Place of Origin: | China |
MOQ: | 1 |
Price: | USD RMB |
Payment Terms: | L/C, T/T |
Supply Ability: | Based on order |
Delivery Time: | 15-60 days |
Packaging Details: | Plywood cases |
Material: | Ductile iron GJS500-7 |
Pilot Material: | SS304 |
standard: | EN1074-5 |
Color: | Blue |
Diaphragm: | Nylon Reinforcement with EPDM |
Rubber: | EPDM |
Company Info. |
Suzhou Alpine Flow Control Co., Ltd |
Verified Supplier |
View Contact Details |
Product List |
Stainless Steel Pilots Ductile Iron Surge anticipating Valve Nylon Reinforcement Diaphragm Anti Water Hammer
A2A5 is a surge anticipation valve and adjusted to eliminate
hazardous pressure surges typical of water hammer conditions. A
water hammer is caused by a sudden shutoff of a pump or rapid
closure of a main valve, causing a fast propagation of low-pressure
front, followed by an extremely high-pressure back-wave. A series
of pressure waves, each one composed of alternating low and high
pressure is created within a few seconds. A2A5 is a piloted
hydraulic valve activated by line pressure. The valve has two
pilots, for high and low pressure. Normally the A2A5 is closed. It
opens when the line pressure drops below a preset pressure, in
anticipation to the following surge, and remains open until the
fluctuations
subside.
Service Fields:
For water system, irrigation system.
Technical Data:
Size | DN50-DN800 |
Working Temperature | - 10C- 80C |
Flange | AISI B16.1 Or PN16 |
Flow Media | Clean Water |
Consult Factory for other applications
IP68 for water resistance
Comply with BS EN 1074-5, ISO 5208, BS EN 12266-1, BS EN 558-1
Materials And Dimension
DN50-DN350
No. | Part Name | Material | Standard |
1 | Body | Ductile Iron | GJS500-7 |
2 | Seat | Stainless Steel | AISI304/316 |
3 | O-ring | Rubber | NBR |
4 | O-ring | Rubber | NBR |
5 | Bolt | Stainless Steel | A2/A4 |
6 | Washer | Stainless Steel | A2/A4 |
7 | Bonnet | Ductile Iron | GJS500-7 |
8 | Bush | Bronze | C61900 |
9 | Spring | Stainless Steel | AISI304/316 |
10 | Caulking Nut | Stainless Steel | A4 |
11 | Diaphragm | Nylon Reinforced rubber | EPDM+Nylon Fabric |
12 | Fixing holder | Ductile Iron | GJS500-7 |
13 | Disc Holder | Ductile Iron | GJS500-7 |
14 | Seal | Rubber | EPDM |
15 | Seat Retainer | Stainless Steel | AISI304/316 |
16 | Stem | Stainless Steel | AISI304/316 |
17 | Plug | Stainless Steel | AISI304/316 |
18 | Screw | Stainless Steel | A2/A4 |
19 | Plug | Stainless Steel | A2/A4 |
20 | Washer | Stainless Steel | A2/A4 |
DN400-DN800
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