一．Product Introduction
HH44X, HH44T, and HH44H micro-resistance slow-closing check valves are used in water supply and drainage pipelines. They are installed at the outlet of the water pump to prevent medium countercurrent and eliminate destructive water hammers, and can effectively reduce the pressure of the valve closing the water hammer, which can ensure the safe operation of the pipe network.
二.Product Features
1.Disc feature: Light disc.
2.Opening characteristic: Large opening.
3.Energy-saving effect: Significant power-saving effect. – Fluid resistance: Low fluid resistance.
4.Water hammer elimination mechanism: Novel design.
5.Sealing performance: Stable and reliable.
6.Wear resistance: Wear resistant.
7.Service life: Long service life.
8.Operation state: Stable operation.
9.Vibration and noise: No vibration, no noise.
三.Technical data
| Working pressure (MPa) | 1.0 – 2.5 |
| Applicable temperature (°C) | ≤80 |
| Applicable media | Water |
| Material – Valve body, valve cover | Gray cast iron, carbon steel |
| Material – Valve disc | Rubber assembly |
| Material – Valve shaft | Stainless steel |
å››.The main shape and connection size
| Nominal diameter | Main shape and connection size | ||
| L | W | H | |
| HH44T-10 HH44X-10 HH44H-10C HH44T-16 HH44X-16 HH44H-16C HH44T-25 HH44X-25 HH44H-25 | |||
| 50 | 230 | 270 | 300 |
| 65 | 290 | 290 | 320 |
| 80 | 310 | 300 | 354 |
| 100 | 350 | 320 | 350 |
| 125 | 400 | 340 | 380 |
| 150 | 480 | 410 | 500 |
| 200 | 500 | 450 | 580 |
| 250 | 600 | 550 | 670 |
| 300 | 700 | 580 | 730 |
| 350 | 800 | 630 | 820 |
| 400 | 900 | 700 | 920 |
| 450 | 1000 | 800 | 950 |
| 500 | 1100 | 900 | 1100 |
| 600 | 1300 | 990 | 1200 |
| 700 | 1400 | 1120 | 1550 |
| 800 | 1500 | 1300 | 1700 |