Hh44T/X/H micro resistance slow closing check valve is used in water supply and drainage pipeline. It is installed at the outlet of water pump to prevent medium reverse flow and eliminate destructive water hammer. It can effectively reduce the closing water hammer pressure of valve and ensure the safe operation of pipe network. It has the characteristics of light valve disc, large opening, remarkable power saving effect, small fluid resistance, novel design of water hammer elimination mechanism, stable and reliable sealing performance, wear resistance, long service life, stable operation, no vibration and no noise.
1. The structure length is short, and its structure length is only 1 / 4 ~ 1 / 8 of the traditional flange check valve
2. Small volume, light weight, its weight is only 1 / 4 ~ 1 / 20 of the traditional micro resistance slow closing check valve
3. The valve disc closes quickly and the water hammer pressure is small
4. Horizontal or vertical pipes can be used and installed conveniently
5. The flow channel is unobstructed and the fluid resistance is small
6. Sensitive action and good sealing performance
7. The stroke of valve disc is short and the impact force of closing valve is small
8. Overall structure, simple and compact, beautiful appearance
9. Long service life and high reliability
Flange standard: GB /T17241.6 GB / T 9113
Test standard: GB / T13927 AP1598
Nominal pressure 1.0~ 12.5MPa
Nominal size: 40-800mm
Suitable medium: water and weak corrosive fluid
Applicable temperature: up to 200℃ if needed
Main material: gray cast iron, cast steel
DN | 40 |
50
|
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
600 |
700 |
800 |
L | 200 | 230 | 290 | 310 | 350 | 400 | 480 | 500 | 600 | 700 | 800 | 900 | 1000 | 1100 | 1300 | 1400 | 1500 |
H | 300 | 300 | 320 | 354 | 350 | 380 | 500 | 580 | 670 | 730 | 820 | 920 | 950 | 1100 | 1200 | 1550 | 1700 |
H1 | 220 | 270 | 290 | 300 | 320 | 340 | 410 | 450 | 550 | 580 | 630 | 700 | 800 | 900 | 990 | 1120 | 1300 |