Flange Vertical 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
Flange vertical check valves
Features
Flange vertical check valve has the following two characteristics:1, vertical check valve has flange and wafer types, with a simple structure, few parts, light weight and other features. Flange vertical check valve is mainly used in various working conditions of preventing the media backflow. 2, when the flange vertical check valve used as vertical installation, it will not set the spring. Using the disc weight and backflow pressure to achieve the check effect.
Dimensions & constructral diagram
Flange vertical check valve constructral diagram
Performance and specifications
| type | nominal pressure PN（MPa） | test pressure (MPa) | suitable temperature（℃） | applicable medium | |
| shell | sealing | ||||
| H42W-16C | 1.6 | 2.4 | 1.76 | ≤425 | water, oil |
| H42W-16P | ≤200 | weak corrosive medium | |||
| H42W-25P | 2.5 | 3.75 | 2.75 | ||
| H42W-25R | corrosive medium | ||||
| H42W-40P | 4.0 | 6.0 | 4.4 | weak corrosive medium | |
| H42W-40R | corrosive medium | ||||
| H42Y-40 | water,oil | ||||
The materials of main parts
| part name | body, disc | pilot valve | sealing face |
| H42W-16C | Carbon steel | carbon steel | Carbon steel |
| H42W-16P | Cr-Ni-Ti stainless steel | Cr-Ni-Ti stainless steel | Cr-Ni-Ti stainless steel |
| H42W-25P | |||
| H42W-40P | |||
| H42W-25R | Cr-Ni-Mo-Ti stainless steel | Cr-Ni-Mo-Ti stainless steel | Cr-Ni-Mo-Ti stainless steel |
| H42W-40R | |||
| H42Y-40 | carbon steel | carbon steel | bead welding hard alloy |
Connection dimensions
| nominal diameter DN | L | D | D1 | D2 | b | f | Z-фd |
| 25 | 115 | 115 | 85 | 65 | 16 | 2 | 4-ф14 |
| 32 | 120 | 135 | 100 | 78 | 18 | 3 | 4-ф18 |
| 40 | 130 | 145 | 110 | 85 | 18 | 3 | 4-ф18 |
| 50 | 140 | 160 | 125 | 100 | 20 | 3 | 4-ф18 |
| 65 | 160 | 180 | 145 | 120 | 22 | 3 | 8-ф18 |
| 80 | 185 | 195 | 160 | 135 | 22 | 3 | 8-ф18 |
| 100 | 210 | 230 | 190 | 160 | 24 | 3 | 8-ф23 |
| 125 | 250 | 270 | 220 | 168 | 28 | 3 | 8-ф25 |
| 150 | 300 | 300 | 250 | 218 | 30 | 3 | 8-ф25 |
| 200 | 380 | 360 | 310 | 278 | 34 | 3 | 12-ф25 |
