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Valve Parts are key components for controlling fluid flow. Valve parts are usually made of corrosion-resistant and wear-resistant materials. They have good durability and reliability and can operate stably in various harsh environments. And the valve parts are well designed to achieve precise flow control and fluid stopping, and have high sealing properties, which can effectively prevent fluid leakage.
Valve parts are widely used in the petrochemical industry, energy industry, water conservancy engineering and other industries. With the continuous advancement of technology and the growing demand, the application scope and performance of valve parts will continue to expand, providing more possibilities for industrial production and social development. sex.
Ningbo Hansheng Machinery Parts Co., Ltd. (Ningbo Yifei Machinery Parts Co., Ltd.) is a manufacturer specialized in customized die casting, investment casting, sand casting and forging service. Our factory locates in Ningbo City, Zhejiang Province. Yifei was founded in 2003, with a floor area of 5,000 square meters. We have established quality assurance system conforming to ISO9001：2000 standard.
As China Valve body parts manufacturers and Valve Casting Parts Suppliers, most of our products are exported to the United States, the United Kingdom, Spain, Germany, France and some other European countries. We mainly serve the following industries: construction hardware, automobiles and off-road vehicles, engineering machinery, construction tools, electrical control, mechanical packaging equipment, medical equipment, precision optical equipment, printing equipment, security control systems, sports equipment, textile machinery, compressors, conveying systems, cranes, flow meters, marine hardware, pump impellers, valves, transportation equipment, etc.
At Ningbo Hansheng Machinery Parts, material questions come to us every day. One of the most common is the difference between bronze and brass. Both ...
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Ningbo Hansheng Machinery Parts Co.,Ltd. (Ningbo Yifei Machinery Parts Co., Ltd.) is a China-based Valve Casting Parts manufacturer and supplier serving the oil and gas, chemical, power, water treatment, and automotive industries. We produce valve bodies, bonnets, discs, stems, and other valve components using sand casting, investment casting (lost wax), and die casting, with secondary CNC machining for tight tolerances. Our factory in Ningbo, Zhejiang, covers 5,000 m² and operates under an ISO9001:2000 quality system. Most of our valve casting parts are exported to the United States, the United Kingdom, Germany, France, Spain, and other European countries.
We supply a broad range of valve casting parts in multiple alloys and casting processes. The table below summarizes the available types, typical materials, and primary applications.
| Product Type | Casting Process | Common Materials | Typical Applications |
|---|---|---|---|
| Valve Body Castings | Sand casting, investment casting | WCB, WCC, LCC, alloy steel, stainless steel | Oil & gas pipelines, chemical reactors, power plants |
| Alloy Steel Valve Parts | Sand casting, CNC machining | Alloy steel, duplex stainless steel | High-pressure steam, corrosive media |
| Steel Valve Parts | Sand casting, investment casting | Carbon steel, stainless steel | Natural gas, water supply, general industrial valves |
| Valve Auto Parts (Sand Casting) | Resin sand casting, green sand casting | Ductile iron, alloy steel | Automotive cooling, exhaust, fuel systems |
| Precision Casting Valve Parts | Investment casting (lost wax) | Stainless steel, alloy steel, duplex steel | Instrumentation, safety valves, aerospace |
| CNC Machined Valve Parts | Cast blank + CNC machining | Alloy steel, stainless steel, carbon steel | Precision seats, stems, discs, custom assemblies |
We select the casting process based on the part geometry, required mechanical properties, production volume, and cost target. For large valve bodies (up to 5 tons) we use resin sand casting; for complex thin-wall components we use investment casting; for high-volume automotive valve parts we use die casting or green sand casting. All castings can be supplied as-cast or fully machined to your drawing.
We work with a wide range of ferrous and non-ferrous alloys. Common materials for valve casting parts include:
We can also supply parts in brass, bronze, and aluminum depending on the application. Our quality assurance includes material certification, dimensional inspection, and pressure testing as required.
Our production capacity spans from prototype quantities to high-volume runs. We operate CNC machining centers, heat treatment furnaces, and a full range of inspection equipment. Typical dimensional tolerances:
We can integrate with your ERP or quality system, providing inspection reports, material certificates, and traceability documentation. For automated production lines, we configure the casting and machining process to match your cycle time and quality targets.
Our quality system is certified to ISO9001:2000 (upgraded to ISO9001:2008 for production). We perform 100% dimensional inspection on critical features and conduct material verification via chemical analysis and mechanical testing. For valve parts, we can perform pressure testing (hydrostatic or pneumatic) per API 598 or your specified standard. We also offer third-party inspection by SGS, BV, or other agencies upon request.
To prepare a precise quotation and manufacturing plan, we need the following project information:
Send your inquiry to master@nbyifei.com or call +86-574-88067800. We typically respond within 24 hours with a technical review and commercial proposal.
Q: What is the typical lead time for valve casting parts?
A: Lead time depends on complexity and quantity. For standard sand-cast valve bodies, tooling takes 2–4 weeks, and first samples are ready in 4–6 weeks. Production lead time for 100–500 pieces is typically 4–8 weeks after sample approval. We will confirm the schedule in our proposal.
Q: Can you supply valve parts with full machining and assembly?
A: Yes. We offer cast blanks, semi-finished parts, and fully machined components including drilling, tapping, and surface grinding. We can also supply sub-assemblies if required. Our CNC machining capability allows us to hold tight tolerances on sealing surfaces and threaded connections.
Q: Do you provide material certificates and pressure test reports?
A: Yes. We supply material test certificates (MTC) per EN 10204 3.1 or 3.2, and can perform hydrostatic or pneumatic pressure testing per API 598, ISO 5208, or your specified standard. Third-party inspection is also available.
Q: What is the minimum order quantity (MOQ) for valve casting parts?
A: MOQ depends on the casting process and part size. For investment casting, MOQ is typically 100–500 pieces. For sand casting, we can accommodate lower quantities (10–50 pieces) for larger parts. We also support prototype runs for new designs.
Q: Do you export to Europe and the US?
A: Yes. Most of our valve casting parts are exported to the United States, the United Kingdom, Germany, France, Spain, and other European countries. We are experienced with international shipping, customs documentation, and packaging for ocean or air freight.
Our portfolio also includes NEXT: CNC Machining Alloy Steel Valve Parts, NEXT: Alloy Steel Casting Valve Parts, Custom Valve Auto Parts by Sand Casting Process Factory for applications with different operating ranges, interfaces or integration requirements.
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