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Fakai Valve Factory Site: Yongxing Industrial Zone, Longwan District, Wenzhou City Tel: 0577-88767789
Fax: 0577-85983279
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H71XT Wafer Type Muffler Check Valve

H71XT Wafer Type Muffler Check Valve Structure
H71XT Wafer Type Muffler Check Valve Structure

H71XT Wafer Type Muffler Check Valve is a self-driven check valve that utilizes internal pressure changes in the pipeline. The valve flaps are guided automatically, with flexible opening and closing, free movement, good sealing performance, small size, light weight, convenient disassembly, low noise, vertical, and horizontal installation. Wafer lift check valve can be installed on the outlet pipe of the pump. It is mostly used when the pump is stopped to prevent the backflow of pressurized water in the pipeline from impacting the pump to ensure safety.

Installation Notes

1. Please check the valve's caliber, pressure level and appearance before installation. If the valve shaft is pressed by hand, it is flexible and unobstructed.
2. Check whether the red arrow marked on the valve body is consistent with the flow direction of the pipeline.
3. When clamping the valve, the bolts should be tightened with equal force to make the valve bear the same force, and the clamping force should not be too large.

Performance specifications

Nominal pressure Experimental pressure Working pressure proper temperature Applicable medium
strength seal
1.6 2.4 1.76 1.6 80 water

Part material

Part Name Body, bonnet, disc Seal Valve shaft, gland spring
material cast iron Nitrile rubber brass stainless steel

Dimension table

Nominal pass
DN (mm)
Size (mm) Weight (kg)
L D D1 bolt
40 62 105 85 4-M16 × 150 2.3
50 67 127 105 4-M16 × 150 2.5
65 73 139 120 4-M16 × 150 4
80 80 152 135 8-M16 × 160 5
100 102 172 155 8-M16 × 190 7.5
125 120 225 185 8-M16 × 230 15
150 140 232 210 8-M20 × 240 19
200 165 286 265 12-M20 × 260 33
250 210 350 320 12-M22 × 310 56
300 260 430 400 12-M22 × 380 102