Gate Valves
GB Cast Steel Gate Valve
- Standard Compliance: Strictly designed and manufactured according to Chinese national standards
- Reasonable Structure: Reasonable design with smooth flow channel and small flow resistance coefficient
- Good Sealing Performance: Sealing surface precisely machined for reliable sealing
- High Strength: Cast steel body with high strength and good pressure resistance
- Long Service Life: High-quality materials and precision machining ensure long service life
- Easy Maintenance: Reasonable structural design for convenient maintenance and inspection
GB Cast Steel Gate Valve is a cast steel gate valve product designed and manufactured according to Chinese national standards. Its closing element is the gate, and the movement direction of the gate is perpendicular to the direction of the fluid. The product strictly complies with Chinese national standards such as GB/T 12234 and GB/T 9113 for design, manufacturing and inspection. It features reasonable structure, good sealing performance, low fluid resistance, and long service life. GB Cast Steel Gate Valves are widely used in pipeline systems in industries such as petroleum, chemical, power, metallurgy, and urban construction, suitable for the shut-off or connection of media such as water, steam, and oil.
Technical Standards
| Item | Technical Standard |
|---|---|
| Design and Manufacturing | GB/T 12234 |
| Inspection and Testing | GB/T 13927 |
| Flange Dimensions | GB/T 9113 |
| Pressure Rating | PN1.6, PN2.5, PN4.0, PN6.4 MPa |
| Operating Temperature | -29℃ to +425℃ |
| Applicable Media | Water, Steam, Oil, etc. |
| Test Standard | GB/T 13927 |
| Connection Type | Flanged Connection |
Basic Models
| Model | Type | Features |
|---|---|---|
| Z41H | GB Cast Steel Wedge Gate Valve | Wedge gate with good sealing performance |
| Z540H | GB Cast Steel Bevel Gear Gate Valve | Bevel gear transmission with labor-saving operation |
| Z641H | GB Cast Steel Welding Gate Valve | Welded connection with reliable sealing |
| Z941H | GB Cast Steel Electric Gate Valve | Electric drive with automated control |
Main Components Material Table
| No. | Part Name | Material |
|---|---|---|
| 1 | Valve Body | WCB, ZG25, ZG1Cr18Ni9Ti |
| 2 | Valve Cover | WCB, ZG25, ZG1Cr18Ni9Ti |
| 3 | Gate | 2Cr13, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti |
| 4 | Valve Stem | 2Cr13, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti |
| 5 | Sealing Surface | Chromium Stainless Steel, Stellite Alloy |
| 6 | Packing | Flexible Graphite, Oil-impregnated Asbestos |
| 7 | Bolts | 35CrMoA, 25Cr2MoVA |
| 8 | Nuts | 30CrMoA, ZCuAl10Fe3 |
No drawing available.
