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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.

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:
SizeDN15-DN2000, 1/2''-80''
PressurePN10-PN420, Class150-Class2500
Temperature-200°C to 650°C
Connection typeFlange, Thread, Socket weld, Butt weld
Operation modeManual, Pneumatic, Electric, Hydraulic, Gear operation


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, et

Seat SealingSS,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.

ConnectionANSI 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 meticulous selection of design standards for bonnet welded gate valves is essential to guarantee compliance with international quality and safety norms. By adhering to these standards, bonnet welded gate valves deliver exceptional performance, durability, and adaptability in diverse installations and applications.

Shen Gao's Comprehensive Range of
Bonnet Welded Gate Valve
Discover the Bonnet Welded Gate Valve Tailored to Your Needs.
Shen Gao Valves
36 Years of Manufacturing Expertise, Delivering One-Stop Gate Valves Solutions.
A reputable provider offers more than just a product sale. Shengao provide strong post-purchase support, addressing issues or concerns.
  • 01
    Determine the Application Field
    Before purchasing a high-performance gate valves, pinpoint its primary use—whether in water treatment, oil and gas, or other industries. Each field has specific needs.
  • 02
    Choose The Right Valve Type
    Gate valves come in many different types. Depending on factors such as flow control and pressure, choose the one that will perform best in your system.
  • 03
    Select Materials
    Diversified selection of materials. Choose different materials according to needs. We provide materials ranging from conventional carbon steel to stainless steel to alloy materials, covering basically all valve materials.
  • 04
    Verify Feasibility
    Discuss with engineers and ask experts to verify to confirm that the valve meets technical requirements. Provide professional advice and installation and maintenance guidance
  • 05
    Quality Control
    We have a strict quality inspection department. Every link needs to be inspected before entering the next link. We will never miss any link until the product is delivered safely.
  • 06
    After-sales Service
    24-hour online customer service, 2- year warranty or 18 months after installation, whichever comes first.
Certificate

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