Small Resistance Slow Close Check Valve HH44X, HH44H
- Brand: feiqiu
- Standards: /
- Class: 1.0MPa~1.6MPa
- Size: DN40~DN1200
- Material: Casting, Ductile lron, WCB
- Medium: Water, heavy oil, sewage etc.
Brief introduction:
Small resistance slow close check valve HH44X, HH44H is suitable for the pipeline related to the systems of water supply and drainage, fire-fighting, warming etc. or the pump outlet to prevent both pump and pipeline from being damaged due to the water hammer produced in medium's back-flow.
This valve is a safety device mounted in the pipeline or pump outlet to prevent the pump from inversed running due to the water hammer’s shock produced in the side-flow of the medium when the pump stops. And it features by the light flap, big opening, notable power saving, small fluid resistance, new-style of water hammer removal mechanism’s design, stable and reliable seal performance, wearable, long duration, stable running, without vibration and noise etc.
main technical parameter:
| PN(MPa) | 1.0 | 1.6 | 2.5 | |
| Test pressure | Shell strength | 1.5 | 2.4 | 3.75 |
| (MPa) | Sealing performance | 1.1 | 1.76 | 2.75 |
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| Working temperature | ≤80℃ | |||
| Applicable medium | Water, heavy oil, sewage etc. | |||
Main Material of parts:
| Name of parts | Body、 Bonnet | Seat | Valve shaft |
| Material | Casting 、Ductile lron、WCB | Rubber assembly | Stainless steel |
main outline connection dimension:
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DN
mm
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HH44X/T/H-1O | |||||||
| L | D | D1 | B | H | H1 | B | Z-φd | |
| 40 | 200 | 150 | 110 | 220 | 300 | 140 | 20 | 4-18 |
| 50 | 230 | 165 | 125 | 270 | 300 | 140 | 20 | 4-18 |
| 65 | 290 | 185 | 145 | 290 | 320 | 150 | 20 | 4-18 |
| 80 | 310 | 200 | 160 | 315 | 330 | 162 | 22 | 8-18 |
| 100 | 350 | 220 | 180 | 340 | 460 | 260 | 24 | 8-18 |
| 150 | 480 | 285 | 240 | 402 | 580 | 274 | 26 | 8-22 |
| 200 | 500 | 340 | 195 | 470 | 680 | 302 | 28 | 8-22 |
| 250 | 600 | 391 | 350 | 550 | 730 | 348 | 28 | 12-22 |
| 300 | 700 | 445 | 400 | 622 | 850 | 370 | 28 | 12-22 |
| 350 | 800 | 505 | 460 | 660 | 950 | 410 | 30 | 16-22 |
| 400 | 900 | 565 | 515 | 800 | 1030 | 450 | 32 | 16-26 |
| 500 | 1100 | 670 | 620 | 950 | 1262 | 550 | 34 | 20-26 |
| 600 | 1300 | 780 | 725 | 1122 | 1520 | 635 | 36 | 20-30 |
| 700 | 1400 | 895 | 840 | 1810 | 1644 | 720 | 40 | 24-30 |
| 800 | 1500 | 1015 | 950 | 1250 | 1774 | 780 | 44 | 24-33 |
| 900 | 1700 | 1115 | 1050 | 1470 | 2084 | 920 | 46 | 28-33 |
| 1000 | 1900 | 1230 | 1160 | 1570 | 2195 | 970 | 50 | 28-36 |
| 1200 | 2220 | 1450 | 1380 | 1920 | 2615 | 1150 | 56 | 32-39 |
