GOST Heavy Type Gate Valve
GOST Heavy Type Gate Valve Z41H (WCB,CF8,CF8M,Ti,Ni）
1.Type: Z41H
2.Size: DN50~600mm
3.Pressure: 1.6～6.4MPa
4.Material: Cast steel, Stainless steel, Etc.
Product Description
| GOST Heavy Type Gate Valve Specifications | |
| Nominal pressure: | 1.6 / 2.5 / 4.0 / 6.3 / 10.0 / 16.0Mpa |
| Shell: | 2.4 / 3.8 / 6.0 / 9.6 / 15.0 / 24.0Mpa |
| Back eal : | 1.8 / 2.8 / 4.4 / 7.0 / 11.0 /18.0 Mpa |
| Liquid seal : | 1.8 / 2.8 / 4.4 / 7.0 / 11.0 /18.0 Mpa |
| Gas seal : | 0.6Mpa |
| Valve body material: | WCB(C) / CF8 (P) / CF3 (PL) / CF8M (R) / CF3M (RL) |
| Suitable medium： | water / steam / oil products / nitric acid / acetic acid |
| Suitable temperature: | -29℃-425℃ |
| GOST Heavy Type Gate Valve Materials Of Main Parts | ||||
| Body | Carbon steel | Cr,Ni, steel | Cr,Ni,Mo,Ti steel | Cr,Mo steel |
| Bonnet | ||||
| Wedge disc |
Carbon steel+Carbide alloy or stainless steel |
Stainless steel, Carbide alloy |
Stainless steel, Carbide alloy |
Alloy steel, Carbide alloy |
| Seal | ||||
| Stem | Cr.stainless steel |
Cr,Ni,Ti stainless steel |
Cr,Ni,Ti stainless steel |
Cr,Mo,Ai steel |
| Stem Nut | Copper alloy | |||
| Packing | Graphite,asbestos coils | Dipping polytetrafluo -roethylene |
Asbestos coil | Flexible graphite |
| Hand wheel | Malleable cast iron | |||
| GOST 1.6MPa Unit：mm | |||||||||||
| DN(mm) | L | D | D1 | D2 | b | f | Z-Φd | H | H1 | D0 | WT (kg) |
| Z40 /41 / H / Y /-16C / P / R / I | |||||||||||
| 50 | 180 | 160 | 125 | 102 | 16 | 3 | 4-18 | 288 | 341 | 180 | 15 |
| 80 | 210 | 195 | 160 | 133 | 18 | 3 | 4-18 | 343 | 426 | 215 | 24 |
| 100 | 230 | 215 | 180 | 158 | 20 | 3 | 8-18 | 392 | 486 | 245 | 34 |
| 150 | 280 | 280 | 240 | 212 | 24 | 3 | 8-22 | 559.5 | 704 | 275 | 67 |
| 200 | 330 | 335 | 295 | 268 | 26 | 3 | 12-22 | 696 | 896 | 320 | 108 |
Gate valve application
Gate valve, the opening and closing member is a gate, the direction of movement of the gate is perpendicular to the direction of the fluid, gate valve can only be fully open and fully closed, can not be used for regulation and throttling.
Gate valve classification
①Divided by gate structure: wedge type and parallel type.
Wedge gates are available in 3 configurations: single gates, double gates and flexible gates.
②Divided by type of structure: flat gate valve and knife gate valve.
Gate valve characteristics
① Low flow resistance.
② Less effort to open and close.
③ Water hammer is less likely to occur.
④ The medium can flow to both sides of any direction, easy to install.
⑤ Simple structure, good manufacturing process, wide range of application
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