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Valve Bonnet

A valve bonnet is a crucial part of a valve. It covers the opening on top of the valve body, acting as a pressure – retaining component. Along with the valve body, it’s exposed to the operating fluid, so it must endure the fluid’s pressure and corrosive effects.

Valve bonnets are usually made by casting or forging, using materials similar to those of the valve body to avoid issues related to dissimilar metals. They hold internal parts like the stem and disc in place.

There are several types of valve bonnets. Threaded ones are simple and cost – effective but are often limited to smaller valve sizes (usually DN80 and below) due to potential leakage risks. Bolted bonnets are versatile, suitable for various valve sizes and pressures. Welded bonnets offer excellent sealing but are difficult to maintain. Pressure seal bonnets are ideal for high – pressure applications.

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High-quality Manual Regulating Valve Bonnet Knob

Our factory supply OEM service(custom service) in precision Investment Casting, which is also called lost wax casting, We have been committed to this technique for over 10 years . Our specialized engineer can provide you the full-service of technology advice and products improving projection, and also reduce the cost of the parts.

  • Place of Origin: Shandong, China
  • Best quality, Best price with short delivery time.
  • Quality:100% Tested
  • All of our products can meet the testing requirements in Europe and America.
Become A Dealer

High-precision Stainless Steel Bonnet Needle Valve

Our factory supply OEM service(custom service) in precision Investment Casting, which is also called lost wax casting, We have been committed to this technique for over 10 years . Our specialized engineer can provide you the full-service of technology advice and products improving projection, and also reduce the cost of the parts.

  • Place of Origin: Shandong, China
  • Best quality, Best price with short delivery time.
  • Quality:100% Tested
  • All of our products can meet the testing requirements in Europe and America.
Become A Dealer

Aluminum Bronze Precisn Casting Sand Casted Bonnet Sets

Our factory supply OEM service(custom service) in precision Investment Casting, which is also called lost wax casting, We have been committed to this technique for over 10 years . Our specialized engineer can provide you the full-service of technology advice and products improving projection, and also reduce the cost of the parts.

  • Place of Origin: Shandong, China
  • Best quality, Best price with short delivery time.
  • Quality:100% Tested
  • All of our products can meet the testing requirements in Europe and America.
Become A Dealer

China Foundry Custom Metal Parts Valve Parts Bonnet

Our factory supply OEM service(custom service) in precision Investment Casting, which is also called lost wax casting, We have been committed to this technique for over 10 years . Our specialized engineer can provide you the full-service of technology advice and products improving projection, and also reduce the cost of the parts.

  • Place of Origin: Shandong, China
  • Best quality, Best price with short delivery time.
  • Quality:100% Tested
  • All of our products can meet the testing requirements in Europe and America.
Become A Dealer

Leading Valve Bonnet Manufacturer

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Develop Your Marind Hardware Business with
Valve Bonnet

In the industrial realm, the valve bonnet business is integral to the seamless operation of various systems. Valve bonnets, crucial components of valves, serve to enclose and safeguard internal parts like stems and discs. They endure significant pressure and exposure to diverse fluids, making their quality non – negotiable.

Our business specializes in manufacturing and supplying a wide range of valve bonnets. We offer threaded bonnets for simple, cost – effective applications, though mainly in smaller sizes due to torque limitations. Bolted bonnets, applicable across all sizes and pressures, are a staple in our product line, adaptable to different operating conditions. Welded bonnets, known for their excellent sealing, are ideal for long – term, maintenance – free scenarios. Additionally, we provide pressure seal bonnets, designed specifically for high – pressure environments.

Our products find extensive use in industries such as oil and gas, petrochemicals, power generation, and water treatment. By collaborating with us, customers gain access to high – quality valve bonnets, ensuring enhanced system reliability, minimized leak risks, and reduced maintenance costs in their operations.

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