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Pressure Seal Butt Welding Gate Valve

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.
Product Details

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

NoPart NameMaterial
1BodyWCB,WC6,WC9,20CrMoV,15CrlMolV
2SeatA105,12CrlMoV
3WedgeWCB,WC6,WC9,20CrMoV,15CrlMolV
4Stem2Crl3,25Cr2MolV
5BonnetA105,WCB,WC6,20CrMoV,12Cr1Mo1V
6Sealing RingGraphite , Soft steel
7Separate Ring1Crl3,12Cr1MoV
8Bolt35,35CrMoA
9Nut45,35CrMoA
10PackingGraphite
11YokeWCB,WC6,20CrMoV
12ActuatorAssembly


WORKSHOP

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INSPECTION

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 FAQ:
Q: Are you trading company or manufacturer ?
A: We are a professional valve factory Located In Wenzhou,China.
Q: What's Execution Standard of products?
A: ISO,ANSI,AWWA,API,DIN,BS,JIS,EN,GOST,AS standard.
Q: How long is your delivery time?
A: Generally it is 15 days if the goods are in stock. It is 25-30 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, Welcome sample order to test and check the quality of products. The sample amount is less than $100, the product cost is free, and the customer needs to pay the express delivery fee. If the sample amount is higher than $100, and the sample cost and express delivery fee need to be negotiated by both parties.

Q: What is your terms of payment ?
A: 30% T/T in advance ,70% balance before shipment or see copy of bill of lading.

Q: Can you OEM or ODM?
A:Yes, we have a strong research & development team. The products can be made according to your request.
Q: Can you provide the relevant documentation and certificate?
A:Yes, We can provide the international certificates and relevant chemical analysis, mechanical properties, pressure test reports according to the customers need.
Q: What is your terms of delivery?
A: We accept EXW,FOB,CIF etc.
8. How to deal with after sales ?
A: warranty time : 18months from the shipment ; and we will be responsible for all the quality problems. We will provide process guidance services, replacement parts, on-site guidance and maintenance services. (both parties shall negotiate the relevant expenses)




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