一．Product Introduction
H7B41X-16, H7B41X-16C type hydraulic control check valve is suitable for the return water pipe of atmospheric pressure boiler. It uses the pressure change of the transmission pipeline to control the opening and closing of this valve. This valve is a normally closed valve, which can effectively prevent the boiler from overflowing when the circulating water pump stops working due to sudden power failure or other reasons. It can replace expensive electromagnetic control systems.
二.Product Features
- Suitable for the return water pipe of atmospheric pressure boiler.
- Controls opening and closing by the pressure change of the transmission pipeline. – Is a normally closed valve.
- Can effectively prevent boiler overflow when the circulating water pump stops working due to sudden power failure or other reasons.
- Can replace expensive electromagnetic control systems.
三.Technical data
| Model number | PN | Working pressure/MPa | Applicable temperature/°C | Applicable media |
| H7B41X-16 | 16 | 1.6 | ≤70 | Water and oil products |
| H7B41X-16C | 16 | 1.6 | ≤425 | Water and oil products |
å››.The main shape and connection size
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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 |