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Fakai Valve Factory Site: Yongxing Industrial Zone, Longwan District, Wenzhou City Tel: 0577-88767789
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HC41X Muffler Check Valve

HC41X muffler check valve structure diagram
HC41X muffler check valve structure diagram

Scope of application

HC41X muffler check valve is installed on the outlet pipe of the pump to prevent the water hammer in the pipeline from impacting the pump when the pump is stopped and to protect the safety of the pipeline. The muffler check valve is small in size, light in weight, convenient for installation and maintenance, has a guide device, has a flexible closing, a linear seal, and a good check effect, which can effectively eliminate the closing noise. It is suitable for the outlets of water pumps such as water supply and drainage, fire fighting, HVAC, etc. to prevent the medium from flowing backward and the water hammer from damaging the pumps and pipelines.

Technical Parameters

Nominal pressure PN (MPa) 1.0 1.6 2.5
Test pressure (MPa) Shell strength 1.5 2.4 3.75
Sealing performance 1.1 1.76 2.75
Working temperature (℃) ≤80
Applicable medium Water and oil

Part material

Part Name Valve body and valve seat Valve flap Flap Sealing surface spring
Texture Cast iron, cast steel, copper, stainless steel Cast copper, stainless copper rubber stainless steel

HC41X form factor table                                            

Nominal diameter
DN (mm)
L PN10 PN16 PN25
b f D2 D D1 Z-φd b f D2 D D1 Z-φd b f D2 D D1 Z-φd
40 100 18 2 85 150 110 4-18 18 2 85 150 110 4-18 18 2 85 150 110 4-18
50 100 20 3 102 165 125 4-18 20 3 102 165 125 4-18 20 3 99 165 125 4-18
65 120 20 3 122 185 145 4-18 20 3 122 185 145 4-18 twenty two 3 118 185 145 8-18
80 140 twenty two 3 133 200 160 8-18 twenty two 3 133 200 160 8-18 twenty four 3 132 200 160 8-18
100 160 twenty four 3 158 220 180 8-18 twenty four 3 158 220 180 8-18 twenty four 3 156 235 190 8-22
125 180 26 3 184 250 210 8-18 26 3 184 250 210 8-18 26 3 184 270 220 8-26
150 200 26 3 212 285 240 8-22 26 3 212 285 240 8-22 28 3 211 300 250 8-26
200 220 28 3 268 340 295 8-22 30 3 268 340 295 12-22 30 3 274 360 310 12-26
250 240 28 3 320 395 350 12-22 32 3 320 405 355 12-26 32 3 330 425 370 12-30
300 280 28 4 370 445 400 12-22 32 4 370 460 410 12-26 34 4 389 485 430 16-30
350 320 30 4 428 500 460 16-22 36 4 428 520 470 16-26 38 4 450 555 490 16-33
400 360 32 4 482 565 515 16-26 38 4 482 580 525 16-80 40 4 505 620 550 16-86
450 400 32 4 532 615 565 20-26 40 4 532 640 585 20-30 42 4 555 670 600 20-36
500 440 34 4 585 670 620 20-26 42 4 585 715 650 20-33 44 4 615 730 660 20-36

HC11X form factor table    

Nominal diameter DN (mm) L G D
15 65 1/2 " 45
20 75 3/4 " 48
25 90 1" 58
32 105 1¼ " 66
40 120 1½ " 74
50 140 2" 89