Manufacturing Companies for Double Check Backflow Preventer Valves – AH Series Dual plate wafer check valve – TWS Valve
Manufacturing Companies for Double Check Backflow Preventer Valves – AH Series Dual plate wafer check valve – TWS Valve Detail:
Description:
Material list:
| No. | Part | Material | ||
| AH EH | BH | MH | ||
| 1 | Body | CI DI WCB CF8 CF8M C95400 | CI DI WCB CF8 CF8M C95400 | WCB CF8 CF8M C95400 |
| 2 | Seat | NBR EPDM VITON etc. | DI Covered Rubber | NBR EPDM VITON etc. |
| 3 | Disc | DI C95400 CF8 CF8M | DI C95400 CF8 CF8M | WCB CF8 CF8M C95400 |
| 4 | Stem | 416/304/316 | 304/316 | WCB CF8 CF8M C95400 |
| 5 | Spring | 316 | …… | |
Feature:
Fasten Screw:
Effectively prenvent the shaft from traveling,prevent valve work from failing and end from leaking.
Body:
Short face to face and good rigidity.
Rubber Seat:
Vulcanized on body,tight fit and tight seat with no leakage.
Springs:
Dual springs distribute the load force evenly across each plate,ensuring quick shut off in back flow.
Disc:
Adopting unitized design of dual dics and two torsion springs,the disc closes quikly and removes water-hammer.
Gasket:
It adjusts fit-up gap and assures disc seal performance.
Dimensions:
| Size | D | D1 | D2 | L | R | t | Weight(kg) | |
| (mm) | (inch) | |||||||
| 50 | 2″ | 105(4.134) | 65(2.559) | 32.18(1.26) | 54(2.12) | 29.73(1.17) | 25(0.984) | 2.8 |
| 65 | 2.5″ | 124(4.882) | 78(3) | 42.31(1.666) | 60(2.38) | 36.14(1.423) | 29.3(1.154) | 3 |
| 80 | 3″ | 137(5.39) | 94(3.7) | 66.87(2.633) | 67(2.62) | 43.42(1.709) | 27.7(1.091) | 3.8 |
| 100 | 4″ | 175(6.89) | 117(4.6) | 97.68(3.846) | 67(2.62) | 55.66(2.191) | 26.7(1.051) | 5.5 |
| 125 | 5″ | 187(7.362) | 145(5.709) | 111.19(4.378) | 83(3.25) | 67.68(2.665) | 38.6(1.52) | 7.4 |
| 150 | 6″ | 222(8.74) | 171(6.732) | 127.13(5) | 95(3.75) | 78.64(3.096) | 46.3(1.8) | 10.9 |
| 200 | 8″ | 279(10.984) | 222(8.74) | 161.8(6.370) | 127(5) | 102.5(4.035) | 66(2.59) | 22.5 |
| 250 | 10″ | 340(13.386) | 276(10.866) | 213.8(8.49) | 140(5.5) | 126(4.961) | 70.7(2.783) | 36 |
| 300 | 12″ | 410(16.142) | 327(12.874) | 237.9(9.366) | 181(7.12) | 154(6.063) | 102(4.016) | 54 |
| 350 | 14″ | 451(17.756) | 375(14.764) | 312.5(12.303) | 184(7.25) | 179.9(7.083) | 89.2(3.512) | 80 |
| 400 | 16″ | 514(20.236) | 416(16.378) | 351(13.819) | 191(7.5) | 198.4(7.811) | 92.5(3.642) | 116 |
| 450 | 18″ | 549(21.614) | 467(18.386) | 409.4(16.118) | 203(8) | 226.2(8.906) | 96.2(3.787) | 138 |
| 500 | 20″ | 606(23.858) | 514(20.236) | 451.9(17.791) | 213(8.374) | 248.2(9.72) | 102.7(4.043) | 175 |
| 600 | 24″ | 718(28.268) | 616(24.252) | 554.7(21.839) | 222(8.75) | 297.4(11.709) | 107.3(4.224) | 239 |
| 750 | 30″ | 884(34.8) | 772(30.39) | 685.2(26.976) | 305(12) | 374(14.724) | 150(5.905) | 659 |
Product detail pictures:
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Manufacturing Companies for Double Check Backflow Preventer Valves – AH Series Dual plate wafer check valve – TWS Valve , The product will supply to all over the world, such as: , , ,
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