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Fakai Valve Factory Site: Yongxing Industrial Zone, Longwan District, Wenzhou City
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H7B41X hydraulic control check valve

H7B41X Hydraulic Check Valve Structure
H7B41X Hydraulic Check Valve Structure

H7B41X hydraulic control check valve is suitable for the return line of atmospheric pressure boiler. It uses the pressure change of the sending line to control the opening and closing of the valve. When the circulating water pump stops working, the boiler overflows, which can replace the expensive electromagnetic control system.

Performance parameter

model PN Working pressure (MPa) Applicable temperature (℃) Applicable medium
H7B41X-16 16 1.6 ≤70 Water and oil
H7B41X-16C 16 1.6 ≤425 Water and oil

Part material

model material
Body and bonnet Stem, disc, valve seat spring
H7B41X-16 grey cast iron 2Cr13 50CrVA
H7B41X-16C WCB

Dimension table

DN L D D1 D2 b z0000d H H1 Weight / kg
40 220 150 110 88 18 4000017.5 175 115 28
50 250 165 125 102 20 4000017.5 175 115 28
65 280 185 145 122 20 4000017.5 195 135 34
80 310 200 160 133 20 8000017.5 215 155 40
100 350 220 180 158 twenty four 8000017.5 215 155 49
125 400 250 210 184 twenty four 8000017.5 240 170 78
150 450 285 240 212 26 8000022 240 170 111
200 500 340 295 268 26 12000022 280 190 155