Stainless Steel High Pressure Seal Bonnet Gate valve valves

Technical Specifications:

  1. Designed and manufactured in accordance with API 602.
  2. End connections per the following standards:
    a) Socket weld dimensions: ANSI B16.11.
    b) NPT Threaded dimensions: ANSI B1.20.1. / BSP.
  3. Face-to-face dimensions in accordance with ASME B16.10-2023.
  4. Testing and inspection performed per API 598.
  5. Structural features: Bolted Bonnet (B.B.), Welded Bonnet (W.B.), Pressure Seal Bonnet (PSB), Outside Screw and Yoke (OS&Y).
  6. Materials conform to ANSI/ASTM standards.
  7. Primary materials include: A105(N), LF2, F304(L), F316(L), F51, F91, F11, F22, F321, etc.

Product Summary

Stainless Steel High Pressure Seal Gate Valves for Extreme Service Conditions

Our stainless steel high pressure seal gate valves represent the pinnacle of engineering excellence for demanding industrial applications. Specifically designed to handle extreme pressure conditions, these robust valves are rated for both PN140 and PN160 pressure classes, making them ideal for power generation plants, chemical processing facilities, and high-pressure industrial systems where reliability is non-negotiable.

The advanced pressure seal design of these gate valves ensures that the sealing mechanism becomes increasingly effective as system pressure rises, guaranteeing zero leakage even under the most challenging operating conditions. Manufactured from premium stainless steel, these valves offer exceptional corrosion resistance and durability, maintaining their integrity when handling steam, hot water, oil, gas, and other aggressive media at elevated temperatures and pressures.

What sets our high pressure seal gate valves apart is their engineered reliability in critical service applications. The PN140 and PN160 ratings demonstrate their capability to perform in systems where pressure fluctuations and thermal cycling are common. The pressure seal bonnet design eliminates potential leakage points, while the rugged construction ensures long-term performance with minimal maintenance requirements.

BrandSFAN VALVE OR "OEM"
Flow boreStandard bore or Full bore
MaterialCarbon steel, Stainless steel, Alloy steel or other
DimensionDN10(1/4") to DN100(4")
Class150~2500
MediumWater, oil &gas.
Temperature-196℃(cryogenic design) to 560℃
Valve test100% quantity tested before delivery
Valve guarantee18 months after shipments and 12 months after installed
PackingPlywood or carton cases
Delivery time7 days to 30 days
Place of OriginZhejiang, China

Catalog details:

尺寸 800LB1500LB 副本.webp

材质压力 副本.webp

Your questions answered

Common questions

How can you trust SFANVALVE ?

For Sfanvalve’s standard products, we are willing to start production without any  payment in advance. We accept product inspection upon completion, and payment is only due once the inspection is passed. SFAN will then arrange shipment to your designated warehouse as per your requirements.

Yes. After receiving the contract, we will provide technical drawings. Production will commence based on these drawings once they are confirmed by both parties.

After receiving the contract and confirming the drawings, we will provide a production schedule and manufacture strictly according to it. We will provide photos or videos to share and make a record for every stage of the production process. If a serious delay occurs due to management error, we will arrange air shipment and bear all costs by air.”

The warranty period is 18 months from the date of shipment or 12 months from the date of installation, whichever occurs first.