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Pump And Valve Casting Wholesale

About Us

Ningbo Jinhui Precision Casting Co., Ltd. (Ningbo Minghui Metal Technology Co., Ltd.) is China Custom Pump And Valve Casting Factory and Wholesale Pump And Valve Casting Manufacturers. The company is a joint-stock enterprise that integrates casting, precision forging, and CNC machining. The company was founded in 2000 and is located in Xizetang Industrial Zone, Xianxiang Town, Xiangshan County, Ningbo City. The company is more than 20 kilometers away from Dongfang Port - Beilun Port, 5 kilometers away from Yongguan Expressway, and 50 kilometers away from Ningbo International Airport, making transportation very convenient. The company has a casting factory and a forging factory. The company has been awarded honorary titles such as "National High tech Enterprise," National "Specialized New Special Precision" Small Giant Enterprise, and Zhejiang Provincial High tech Enterprise Research and Development Center.
Four Advantages of Warm Core Box Shell Forming Process.

Technological Advantages

  • Use pearl sand and environmentally friendly resin. Baozhu sand is spherical, with a smooth surface, high fire resistance, easy to collapse, good stability, and can be recycled. Environmentally friendly resin, free of phenol and formaldehyde, with national invention patents.

  • The sand shell has high thermal strength, and its strength gradually increases during the casting process, which can effectively ensure the dimensional accuracy of the casting; When the casting begins to cool and solidify, the strength of the sand shell rapidly decreases and has the characteristic of good collapsibility.

  • Production casting quality: The dimensional accuracy and surface quality are equivalent to that of water glass wax loss casting, but under the same production conditions, the mechanical properties are significantly better than that of water glass wax loss casting products.

  • Production efficiency: When the mold is ready to use, casting blanks can be obtained in 3-5 days, greatly shortening the delivery cycle, and the production cost is lower than that of the water glass wax loss process.


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    Normalizing Furnace System With Temperature Control For Multiple Heating Zones (Jinhui)
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    A Temperature Controlled Furnace System With Multiple Heating Zones (Jinhui)
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    An Intelligent Heat Treatment System (Jinhui)
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    An Intelligent Recycling System For Casting Wax Patterns (Jinhui)
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    Pouring System For Railway Spring Head Castings (Jinhui)
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    Pouring System For Track Shoe Castings Used In Construction Machinery (Jinhui)
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    Pouring System For Railway Diagonal Wedge Castings (Jinhui)
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    Large Span Translational And Rotary Robotic Arm (Jinhui)
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    A Clamping Device (Utility Model Patent Certificate) Jinhui
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    Utility Model Patent Certificate (Jinhui)
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    Pouring System For Buffer Castings For Railway Trains (Minghui)
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    Pouring System For Buffer Castings For Railway Trains (Minghui)


Industry knowledge

1.Surface treatment: balance of anti-corrosion and lubrication
Surface treatment has a significant impact on the performance and life of pump and valve castings. In applications involving corrosive environments, such as chemical industry and marine engineering, suitable surface treatment can not only improve the anti-corrosion performance of the casting, but also increase its durability. Here are professional extensions to several common surface preparation methods:
a)Progress of galvanizing technology: Galvanizing is a common anti-corrosion method that improves the corrosion resistance of castings by forming a zinc layer on their surfaces. The latest technological advances include high-temperature galvanizing, electroplating zinc alloys, etc. These methods not only improve anti-corrosion performance, but also reduce environmental impact. At the same time, by controlling the thickness and uniformity of the galvanized layer, it can better adapt to the needs of different working environments.
b)Advanced spraying technology: Spraying technology plays an important role in the surface treatment of pump valve castings. In addition to traditional anti-corrosion coatings, the research and development of new coating materials is also ongoing. For example, nano-coatings and multi-functional coatings not only have excellent anti-corrosion properties, but also improve the wear resistance and high temperature resistance of castings. The application of these technologies can be tailored to specific engineering needs to achieve optimal surface protection.

2. Application fields: Pump valve castings are widely used in industrial and civil fields
Pump and valve castings are widely used in various industrial and civil fields. Specific application environments and working conditions place higher requirements on the design and performance of pump and valve castings. The following are specialized extensions for different application areas:
a)Application challenges in the petrochemical industry: In the petrochemical industry, pump and valve castings need to cope with the challenges of high temperature, high pressure and corrosive media. In response to these requirements, high-temperature alloy materials and advanced corrosion-resistant surface treatment technology have become key. At the same time, sealing and reliability are crucial to avoid leaks and ensure production safety.
b)Environmentally friendly requirements in the field of water treatment
In the field of water treatment, pump and valve castings need to meet environmental protection and sustainable development requirements. Lightweight design, energy-efficient materials and low-friction surface treatment technologies are the focus to reduce energy consumption and extend equipment life. In addition, resistance to contamination and ease of maintenance are also key factors to consider in water treatment equipment.
c) Extreme conditions in the energy industry: In the energy industry, pump and valve castings may operate in extreme operating conditions, such as deep sea oil wells and high altitude locations. This requires castings with excellent corrosion resistance, impact resistance and high temperature resistance. In addition, for some critical equipment, such as valves in nuclear power plants, stricter quality control and traceability requirements are also essential.