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Bonnet Welded Gate Valve

Featuring a welded bonnet construction, bonnet welded gate valves offer superior sealing performance and durability in high-pressure and high-temperature applications. The welded bonnet design eliminates potential leakage paths, ensuring tight sealing under extreme operating conditions. Bonnet welded gate valves find widespread use in industries such as oil and gas production, pipeline transmission, and offshore drilling, where reliable sealing and robust construction are critical for preventing fluid loss and ensuring operational safety.

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Design Advantages

Superior Sealing: Welded bonnet design ensures a secure seal, preventing fluid leakage.

High Strength: Welded construction provides added strength and durability for reliable performance.

Compact Design: Compact size allows for easy installation and integration into existing systems.

Wide Temperature Range: Capable of operating in a broad temperature range, making it suitable for diverse applications.

Reduced Risk of Leakage: Welded construction minimizes the risk of leakage, ensuring system integrity.

Long Service Life: Robust materials and welded construction contribute to a long service life with minimal maintenance needs.

Technical Parameters

Size	DN15-DN2000, 1/2''-80''
Pressure	PN10-PN420, Class150-Class2500
Temperature	-200℃ to 650℃
Connection type	Flange, Thread, Socket weld, Butt weld
Operation mode	Manual, Pneumatic, Electric, Hydraulic, Gear transmission

Materials

Valve Body	Forged	A105, LF2, F5, F9, F11, F22, F304, F316, F347, F904, F51, F53, F310, N08020, Inconel625, etc
	Cast	WCB, LCB, C5, C12, WC6, WC9, CF8, CF8M, CF8C, 4A, 5A, CN7M, C95800, CW6MC, etc
Valve Stem		F6a, 17-4PH, XM-19, F304, F316, F347, F904, F51, F53, F310, Monel400, Monel500, N08020, Inconel625, Incoloy825，etc
Valve Disc		A105, LF2, F5, F9, F11, F22, F304, F316, F347, F904, F51, F53, F310, N08020, Inconel625, F6a, 17-4PH, XM-19, F304, F316, F347, F904, F51, F53, F310, Monel400, Monel500，Incoloy825，WCB, LCB, C5, C12, WC6, WC9, CF8, CF8M, CF8C, 4A, 5A, CN7M, C95800, CW6MC, etc
Seat Sealing		SS,BR,CU,AS,CS,AL,PTFE,NBR,FKM,AI203,etc

Design Standards

Valve Body	API 600, API 602, ASME B16.34, DIN 3352, BS 5163, GOST 5762, JIS B2073, GB/T 12233, etc.
Flange	ANSI B16.34, EN 1982, JIS B2210, GB/T 17241, ASME B16.42, GOST 12815, DIN 3202-1, etc.
Connection	ANSI B16.10, ASME B16.25, JIS B2212, GOST 33259, DIN 3202, etc.
Test Standards	API 598, ISO 5208, BS EN 12266, ASME B16.104, GOST 9544-2015, JIS B2003, DIN 3230, etc.

The careful selection of design standards for Bonnet Welded Gate Valve is crucial to ensure adherence to international quality and safety benchmarks. By complying with these standards, Bonnet Welded Gate Valve offer outstanding performance, longevity, and suitability across various installations and applications.

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