Gold top valve located in Oubei Town, Wenzhou, China,where can make all kinds of precision balls,including top entry,metal seat and V type balls.On this base,our products range of floating,trunnion,Gate globe check valve ,butterfly valve ,etc.Surely we can design them by customer's special requirements.
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| Place of Origin: | CHINA |
| Brand Name: | GTV |
| Certification: | API600 |
| Model Number: | Z41H |
| Material: | Brass, Stainless Steel, CF8M, WCB, Forged | Pressure: | Medium Pressure, High Pressure, Low Pressure, PN16-PN100, 150-300L |
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| Media: | Water, Gas, Oil, Central Heating, Base | Body Material: | Steel, Inconel, Hastelloy, CF8/CF8M, Nickel Aluminum Bronze |
| Standard: | DIN, BS, API, EN, ANSI |
Pressure Seal Butt Welding Gate Valve
The pressure seal valves are designed for service of high temperature and high pressure and are widely used in fossil fuel power plant. Compared with bolted bonnet joint valves, it provides absolute reliable sealing of the bonnet joint, so that the pressure seal valves are more compact and rigid as well as maintenance cost-effective at high temperature and high pressure service.
Main Features:
Rational structure reliable sealing,excellent performance and nice molding.
Regardless of operating-temperature changes,the bonnet ioint remains leak proof.This is insured by stainless steel inlay in the body gasket area.The sealing pressure is in direct proportion to the internal pressure.
Advanced pressure seal designed body and pure graphite gasket rings to ensure high tightness and comply with the healthy and safe environment requirements for fugitive emissions control.
Main Parameter Specification
Design and Manufacture:Cast Steel Gate Valve to API 600(ISO 10434),API 6D;Cast Stainless Steel Gate Valve to API 603,API 600
Inspection and Test:API598,API600 or API 6D
End Flange Dimension:ASME B16.5(for NPS≤24,ASME B 16.47 series B,API 605,ASME B16.47 A Series,MSS SP-44(for NPS>24)
BW end Dimension:ASME B16.25
Face to Face and End to End:ASME B16.10
Pressure-temperature ratings:ASME B16.34
Product Range
Body material: WCB, WC6, WC9, LCB, LC1, C5, CF8, CF8M, CF3, CF3M, CF8C, CN7M, Hastelloy C, etc.
Nominal diameter:2"~48"(DN50~DN2500)
End Connection: RF,RTJ, BW
Pressure range: Class150~2500(PN16~PN420)
Working temperature:-29ºC~+560ºC
Operation: Hand wheel,Gear,Electric Actuator,etc.
Main Parts and Materials
| No | Part Name | Material |
| 1 | Body | WCB,WC6,WC9,20CrMoV,15CrlMolV |
| 2 | Seat | A105,12CrlMoV |
| 3 | Wedge | WCB,WC6,WC9,20CrMoV,15CrlMolV |
| 4 | Stem | 2Crl3,25Cr2MolV |
| 5 | Bonnet | A105,WCB,WC6,20CrMoV,12Cr1Mo1V |
| 6 | Sealing Ring | Graphite , Soft steel |
| 7 | Separate Ring | 1Crl3,12Cr1MoV |
| 8 | Bolt | 35,35CrMoA |
| 9 | Nut | 45,35CrMoA |
| 10 | Packing | Graphite |
| 11 | Yoke | WCB,WC6,20CrMoV |
| 12 | Actuator | Assembly |
Gate valves with NPS>=2 are flexible gate,gate valves with with NPS<2 are of solid gate.
If being requested by the customer,the Belleville spring loaded packing impacting system can be adopted for
enhancing the durability and reliability of the packing seal.
Contact Person: sales
Tel: +8613758447235
