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[China]
Trade Verify
Address: B5 Chao Yang Factory, Caohu Industrial Park, Xiangcheng Economic Development Zone, Suzhou, Jiangsu Province P.R.C
Contact name:Matt Liang
Suzhou Alpine Flow Control Co., Ltd |
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Verified Suppliers
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Water Pressure Sustaining Relief Valve Ductile Iron EPOXY Coated With Stainless Steel 304 Pilot Operated
Description:
A500 can protects system from overpressure by exhausting excess
pressure. The valve may only have to
operate intermittently to prevent pressure surges that might occur
on pump start, pump stop, or sudden downstream valve closure.
When A500 Installed in the main flow line,it acts as a backpressure or pressure sustaining valve. In this configuration, the valve maintains a constant upstream pressure regardless of fluctuating downstream demand.
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 | ANSI 304/316 |
| 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 | ANSI 304/316 |
| 10 | Caulking Nut | Stainless Steel | A4 |
| 11 | Diaphagm | 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 | ANSI 304/316 |
| 16 | Stem | Stainless Steel | ANSI 304/316 |
| 17 | Plug | Stainless Steel | ANSI 304/316 |
| 18 | Screw | Stainless Steel | A2/A4 |
| 19 | Plug | Stainless Steel | A2/A4 |
| 20 | Wsher | Stainless Steel | A2/A4 |
| Dimension Unit:MM | |||||||||||||||
| DN | Model Code | L | φD | Φk | H | N-φd | ΦB | ||||||||
| PN10 | PN16 | PN25 | PN10 | PN16 | PN25 | PN10 | PN16 | PN25 | PN10 | PN16 | PN25 | ||||
| 50 | A900-0050 | 230 | 165 | 165 | 165 | 125 | 125 | 125 | 177 | 4-φ19 | 4-φ19 | 4-φ19 | φ99 | φ99 | φ99 |
| 65 | A900-0065 | 290 | 185 | 185 | 185 | 145 | 145 | 145 | 202 | 4-φ19 | 4-φ19 | 8-φ19 | φ118 | φ118 | φ118 |
| 80 | A900-0080 | 310 | 200 | 200 | 200 | 160 | 160 | 160 | 219 | 8-φ19 | 8-φ19 | 8-φ19 | φ132 | φ132 | φ132 |
| 100 | A900-0100 | 350 | 220 | 220 | 235 | 180 | 180 | 190 | 243 | 8-φ19 | 8-φ19 | 8-φ23 | φ156 | φ156 | φ156 |
| *125 | A900-0125 | 400 | 250 | 250 | 270 | 210 | 210 | 220 | 243 | 8-φ19 | 8-φ19 | 8-φ28 | φ156 | φ156 | φ156 |
| 150 | A900-0150 | 480 | 285 | 285 | 300 | 240 | 240 | 250 | 333 | 8-φ23 | 8-φ23 | 8-φ28 | φ211 | φ211 | φ211 |
| 200 | A900-0200 | 600 | 340 | 340 | 360 | 295 | 295 | 310 | 428 | 8-φ23 | 12-φ23 | 12-φ28 | φ266 | φ266 | φ274 |
| 250 | A900-0250 | 730 | 405 | 405 | 425 | 350 | 355 | 370 | 478 | 12-φ23 | 12-φ28 | 12-φ31 | φ319 | φ319 | φ330 |
| 300 | A900-0300 | 850 | 460 | 460 | 485 | 400 | 410 | 430 | 538 | 12-φ23 | 12-φ28 | 16-φ31 | φ370 | φ370 | φ389 |
| *350 | A900-0350 | 980 | 520 | 520 | 555 | 460 | 470 | 490 | 550 | 16-φ23 | 16-φ28 | 16-φ34 | φ429 | φ429 | φ448 |
| Note | 1.DN125 DN350 use same internel as DN100 DN300 | ||||||||||||||
| 2.A1SI 304 factory standard material. Consult factory for AISI 316material | |||||||||||||||
DN400-DN800
| No. | Description | Material | Standard |
| 1 | Body | Ductile Iron | GJS500-7 |
| 2 | Seat | Stainless Steel | ANSI 304/316 |
| 3 | Screw | Stainless Steel | A2/A4 |
| 4 | Screw | Stainless Steel | A2/A4 |
| 5 | Screw | Stainless Steel | A2/A4 |
| 6 | Spring | Stainless Steel | ANSI 304/316 |
| 7 | Bonnet | Ductile Iron | GJS500-7 |
| 8 | Bush | Bronze | C61900 |
| 9 | O-ring | Rubber | NBR |
| 10 | Fix Washer | Bronze | C61900 |
| 11 | Diaphagm | Nylon Reinforced Rubber | EPDM+Nylon Fabric |
| 12 | Eye Bolts | Carbon Steel | 1040 |
| 13 | Fix Holder | Ductile Iron | GJS500-7 |
| 14 | Disc Holder | Ductile Iron | GJS500-7 |
| 15 | Seal | Rubber | EPDM |
| 16 | Seal Retainer | Ductile Iron | GJS500-7 |
| 17 | Stem | Stainless Steel | ANSI 304/316 |
| 18 | Plug | Stainless Steel | ANSI 304/316 |
| 19 | O-ring | Rubber | NBR |
| 20 | Cap | Ductile Iron | GJS500-7 |
| 21 | Plug | Stainless Steel | ANSI 304/316 |
| 22 | Screw | Stainless Steel | A2/A4 |
| 23 | O-ring | Rubber | NBR |
| 24 | Screw | Stainless Steel | A2/A4 |
| Dimension Unit:MM | |||||||||||||||
| DN | Model Code | L | H | φD | Φk | N-φd | ΦB | ||||||||
| PN10 | PN16 | PN25 | PN10 | PN16 | PN25 | PN10 | PN16 | PN25 | PN10 | PN16 | PN25 | ||||
| 400 | A900-0400 | 1100 | 710 | 580 | 580 | 620 | 515 | 525 | 550 | 16-φ28 | 16-φ31 | 16-φ37 | 480 | 480 | 503 |
| *450 | A900-0450 | 1200 | 720 | 640 | 640 | 670 | 565 | 585 | 600 | 20-φ28 | 20-φ31 | 20-φ37 | 530 | 548 | 548 |
| 500 | A900-0500 | 1250 | 822 | 715 | 715 | 730 | 620 | 650 | 660 | 20-φ28 | 20-φ34 | 20-φ37 | 582 | 609 | 609 |
| 600 | A900-0600 | 1450 | 885 | 840 | 840 | 845 | 725 | 770 | 770 | 20-φ31 | 20-φ37 | 20-φ40 | 682 | 720 | 720 |
| *700 | A900-0700 | 1650 | 910 | 910 | 910 | 960 | 840 | 840 | 875 | 24-φ31 | 24-φ37 | 24-φ43 | 680 | 720 | 720 |
| 800 | A900-0800 | 1850 | 1260 | 1025 | 1025 | 1085 | 950 | 950 | 990 | 24-φ34 | 24-φ40 | 24-φ49 | 901 | 901 | 928 |
| Note | 1.DN450 DN700 use same internel as DN400 DN600 | ||||||||||||||
| 2.A1SI 304 factory standard material. Consult factory for AISI 316material | |||||||||||||||
