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4 Holes X 4 Inch Swing Gate Check Valve , Oil Swing Type Check Valve
Brief Description
Rubber Flapper Swing Check Valve, Oil Control Bottom Buffer 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 sideflow of the medium when the pump stops.
And it features by the light flap, big opening, notable power saving, small fluid resistance, newstyle of
water hammer removal mechanism’s design, stable and reliable seal performance, wearable, long
duration, stable running, without vibration and noise etc.
Suitable for the pipeline related to the systems of water supply and drainage, firefighting, 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.
Technical Parameters | ||||
PN(MPa) | 1 | 1.6 | 2.5 | |
Test pressure | Shell strength | 1.5 | 2.4 | 3.75 |
(MPa) | Sealing performance | 1.1 | 1.76 | 2.75 |
Working temperature | ≤80℃ | |||
Applicable medium | Rinsing,Dead oil |
Materials | |||
Name of parts | Body, Bonnet | Seat | Valve shaft |
Material | Casting pig,Ductile lron,Bowl-shape steel | Rubber assembly | Stainless steel |
Dimensions | ||||||||
DN | ENHH44X/T/H-1O | |||||||
mm | 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 |