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Hydraulic check valve is widely used for return pipe in constant pressure boiler. It can utilize its own pressure change to control valve. It can avoid overflow caused by outage or other reasons, replacing of expensive electromagnetic control system.
Parameter
Model | PN | Working Pressure/MPa | Applicable Temperature/℃ | Applicable Medium |
H7B41X-16 | 16MPa | 1.6 | ≤70 | Water, oil |
H7B41X-16C | 16MPa | 1.6 | ≤425 | Water, oil |
Materials
Model | Materials | ||
Body/bonnet | Stem/disc/base | Spring | |
H7B41X-16 | Grey cast iron | 2Cr13 | 50CrVA |
H7B41X-16C | WCB | ||
Dimensions
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 | 24 | 8000017.5 | 215 | 155 | 49 |
125 | 400 | 250 | 210 | 184 | 24 | 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 |
Steel Swing Check Valve
DIN 3356 Swing Flanged Check Valve, PN1.6, 2.5, 4.0
Silent Check Valve
