Forged Steel Pressure Seal Gate Valve A105 2 Inch 1500LB API 602 Bolted Bonnet Butt Weld OS&Y

Forged Steel Pressure Seal Gate Valve A105 2" 1500LB

Product Introduction

This forged steel pressure seal gate valve is designed for severe high-pressure applications in power plants, refineries, and petrochemical facilities. Manufactured from premium A105 forged carbon steel with a pressure seal bonnet design, this 2-inch Class 1500LB valve delivers exceptional sealing performance under extreme conditions. The API 602 compliant bolted bonnet construction ensures reliable operation in steam, gas, and oil service up to 538°C. Every valve undergoes hydrostatic shell testing at 1.5x rated pressure and seat leakage testing per API 598 to guarantee zero external leakage.

Key Features & Characteristics

• Pressure Seal Bonnet Design: Self-sealing gasket under line pressure ensures tighter sealing as pressure increases, ideal for high-pressure steam and boiler feedwater applications.
• Forged A105 Carbon Steel Body: Superior grain structure and mechanical properties compared to cast alternatives, providing excellent strength and impact resistance at elevated temperatures.
• Stellite 6 Hardfaced Seats: Cobalt-based alloy seating surfaces deliver exceptional wear and galling resistance, extending service life in high-cycle operations.
• Full Port Design: Unobstructed flow path minimizes pressure drop and allows smooth pigging operations for pipeline maintenance.
• OS&Y Rising Stem: External stem threads provide clear visual indication of valve position and protect threads from process fluid contamination.
• Butt Weld Ends: Permanent leak-proof connection eliminates potential leak paths associated with flanged joints in high-pressure systems.

Why Choose Us

• API 602 Certified Manufacturing: Our production facility is fully certified to API 602 standards, ensuring every valve meets international quality requirements for forged steel gate valves.
• 100% Hydrostatic Testing: Every valve undergoes mandatory shell strength and seat leakage testing per API 598 before shipment, with individual test certificates provided.
• Full Traceability: Complete material heat numbers and NDE reports (UT, MT, PT) traceable from raw material to finished product.
• Rapid Delivery: 7-15 working days standard lead time with expedited options available for urgent project requirements.
• Technical Support: Dedicated engineering team provides application guidance, installation support, and after-sales service worldwide.

Technical Parameter Table

FAQ

Q: What is a pressure seal gate valve and how does it differ from a standard bolted bonnet valve?
A: A pressure seal valve uses internal system pressure to enhance the bonnet seal. As line pressure increases, the seal gasket is compressed more tightly against the body cavity, creating a self-energizing seal. This design is superior for high-pressure applications above Class 900LB where conventional gaskets may leak.

Q: Can this valve be used for steam service?
A: Yes, this valve is specifically designed for high-pressure steam applications up to 538°C. The pressure seal bonnet and Stellite 6 hardfaced seats are ideal for superheated steam in power plant boiler systems.

Q: What material certificates are provided?
A: We provide EN 10204 3.1 material certificates for all pressure-containing parts, including chemical composition analysis and mechanical property test reports. 3.2 certificates with third-party inspection (TUV, BV, SGS) are available upon request.

Q: Is customization available for different end connections?
A: Yes, we can manufacture with flanged ends (RF, RTJ), socket weld, or threaded connections based on your piping specification requirements.