Bolted Bonnet Lift Check Valve, API 602, A105N, 1 IN, CL800

The Bolted Bonnet Lift Check Valve Plant specializes in producing high-quality small forged check valves that adhere to API 602 standards. These valves feature a carbon steel ASTM A105N body, ensuring durability and reliability. With a 1-inch size and a pressure rating of Class 800 LB, they are designed for demanding applications. The valves have FNPT (Female National Pipe Thread) threaded ends for secure and easy installation. The bolted bonnet design provides easy maintenance and inspection.

Product Name: Bolted Bonnet Lift Check Valve
Design Standard: API 602
Body Material: ASTM A105N
Size: 1 Inch, DN25
Pressure: Class 800 LB, PN130
End Connection: FNPT
Medium: Water, Oil, Gas, etc
Temperature Range: -29°C to 595°C

Forged Steel Check Valves are designed and manufactured in strict accordance with international standards such as API 602, ASME B16.34, or their equivalents. These valves are engineered to minimize flow resistance and pressure drop and are intended for horizontal installation only. The lapped and screwed-in seat ring ensures a tight seal and long service life. The valve disc is precisely designed, accurately machined, and guided for efficient automatic shut-off at zero pressure. Available in both swing and piston (lift) constructions, the valves feature a compact structure and are optimized for low-emission service.

Technical Specification

» Product Type: Forged Steel Lift Check Valve
» Size Range: 1/2-2 Inch, DN15-DN50 (Forged Items)
» Design Pressure: Class 150-2500 LB(PN10-PN420)
» Body Materials: Carbon Steel, Alloy Steel, Stainless Steel, Duplex Stainless Steel, and other alloys
» Trim Materials: 13%Cr, F11, F22, SS304, SS304L, SS316, SS316L, and special materials upon request
» End Connections:

• Socket Weld (SW) – ASME B16.11
• Female NPT (FNPT) – ASME B1.20.1
• Butt Weld (BW) – ANSI B16.25
• Flanged (RF/RTJ) – ANSI B16.5
• Grooved Ends (optional)

» Design & Manufacturing Standards: ASME B16.34, API 602
» Face-to-Face Dimensions: ANSI B16.10
» Testing & Inspection: API 598, API 6D

Structural Diagram

Product Features

» Water Hammer Protection: Effectively reduces the occurrence of water hammer during liquid flow, protecting pipeline systems and equipment from impact damage.
» Bonnet Options: Available in bolted bonnet and welded bonnet constructions.
» Design Variants: Offered in both swing-type and lift-type check valve configurations.
» Flow Options: Available in full port or reduced bore designs to meet various application requirements.