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| Categories | Water Control Valve | 
|---|---|
| Brand Name: | AFC | 
| Model Number: | A500 | 
| Certification: | EN1074-5 | 
| 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 | 
| Coating: | EPOXY | 
| Diaphragm: | Nylon Reinforcement with EPDM | 
| Rubber: | EPDM | 
| Company Info. | 
| Suzhou Alpine Flow Control Co., Ltd | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
Pressure Relief And Sustaining Control Valve For Water Application
Description:
A500 opens instantly when the pressure in the pipeline exceeds the safe level, thus relieving excessive pressure from the network. When the pressure returns to normal, the valve closes slowly, at an adjustable pace.
The valve can also maintains upstream pressure, regardless of flow rate variations. The valve will be in the “closed” position if the upstream pressure drops below the set-point and will fully open when the upstream pressure exceeds the set-point.
.
Feature:
Operates automatically off line pressure
Nylon-reinforced diaphragm.
Easily maintained without removal from the line.
Replaceable seat ring.
| Size | DN50-DN800 | 
| Working Temperature | - 10C- 80C | 
| Flange | AISI B16.1 Or PN16 | 
| Flow Media | Clean Water | 
Materials And Dimension
DN50-DN350

| No. | Description | 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 | Dics 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

| No. | Description | Material | Standard | 
| 1 | Body | Ductile Iron | GJS500-7 | 
| 2 | Seat | Stainless Steel | AISI304/316 | 
| 3 | Screw | Stainless Steel | A2/A4 | 
| 4 | Screw | Stainless Steel | A2/A4 | 
| 5 | Screw | Stainless Steel | A2/A4 | 
| 6 | Spring | Stainless Steel | AISI304/316 | 
| 7 | Bonnet | Ductile Iron | GJS500-7 | 
| 8 | Bush | Bronze | C61900 | 
| 9 | O-ring | Rubber | NBR | 
| 10 | Fix Washer | Bronze | C61900 | 
| 11 | Diaphragm | Nylon Reinforced Rubber | EPDM+Nylon Fabric | 
| 12 | Eye Bolts | Carbon Steel | 1040 | 
| 13 | Fixing holder | Ductile Iron | GJS500-7 | 
| 14 | Dics Holder | Ductile Iron | GJS500-7 | 
| 15 | Seal | Rubber | EPDM | 
| 16 | Seal Retainer | Ductile Iron | GJS500-7 | 
| 17 | Stem | Stainless Steel | AISI304/316 | 
| 18 | Plug | Stainless Steel | AISI304/316 | 
| 19 | O-ring | Rubber | NBR | 
| 20 | Cap | Ductile Iron | GJS500-7 | 
| 21 | Plug | Stainless Steel | AISI304/316 | 
| 22 | Screw | Stainless Steel | A2/A4 | 
| 23 | O-ring | Rubber | NBR | 
| 24 | Screw | Stainless Steel | A2/A4 | 

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