Tiny Drag Slow Close Swing Check Valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
E-mail: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
Tiny drag slow close swing check valves
Features and usages
HH44 (Z / X), HH44 (X / T / H) tiny drag slow close swing check valve is applied to the discharge pipes, installed in the pump outlet to prevent the media reflux and eliminate the destructive water hammert, and can effectively reduce the valve closed water hammer pressure, can protect the safe operation of pipe network. The valve has light disc, large opening, obvious energy-saving effect, small liquid resistance, new water hammmer elimination design, stable and reliable sealing performance, wear resistance and long service life, stable action, non-vibration, no noise and other features.
Technical parameters
nominal pressure：1.0～2.5MPa
nominal diameter：40～800mm
applicable medium: water,weak corrosive liquid
suitable temperature：0～80℃（if needed，it can get to200℃）
flange standard：GB/T 17241.6 GB/T9113
test standard：GB/T 13927 AP1598
Typical installation diagram
Tiny drag slow close swing check valve typical installation diagram
Dimensions & constructral diagram
Tiny drag slow close swing check valve constructral diagram(pic1)
Tiny drag slow close swing check valve constructral diagram(pic2)
The materials of main parts
| part name | body,bonnet | disc | shaft |
| material | grey cast iron, cast steel | steel plate,rubber components | stainless steel |
The external and connection dimensions
| 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 |
| B | 220 | 270 | 290 | 300 | 320 | 340 | 410 | 450 | 550 | 580 | 630 | 700 | 800 | 900 | 990 | 1120 | 1300 |
