Forged Steel Pressure Seal Gate Valve A105 2 Inch 1500LB API 602 Bolted Bonnet

Product Specification

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.