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Help CenterPrecision Cast Parts for Pump and Valve Assemblies With Pressure Rating
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Based in Luoyang, Henan, Henan San Kuang Machinery Technology Co., Ltd. has been dedicated to manufacturing high-quality precision cast parts since 2014. With a factory spanning 10,000–30,000 square meters and a skilled team of 51–100 employees, we specialize in producing cast components for pump and valve assemblies that meet demanding pressure ratings. Our decades of combined experience and annual export value of US$2.5–5 Million to markets across North America, Europe, Asia, and Africa ensure our parts deliver reliable performance in critical fluid control systems.
Our precision cast parts are engineered to withstand high pressures while maintaining dimensional accuracy and structural integrity. Whether you need pump casings, valve bodies, impellers, or flanges, our investment casting process produces complex geometries with excellent surface finish and tight tolerances. We offer a wide range of materials and pressure classes to suit your specific application requirements.
Key Product Features & Technical Specifications
- Material Versatility: Available in stainless steel (304, 316, 316L), carbon steel (WCB, WCC), alloy steel (LCB, WC6), and duplex stainless steel to resist corrosion, erosion, and high temperatures.
- Pressure Rating Options: Conform to ASME B16.34 pressure classes ranging from 150LB to 1500LB, ensuring safe operation under system pressures.
- High Precision: Investment casting achieves dimensional tolerances of CT6–CT8 (ISO 8062), reducing machining requirements and ensuring proper fit with mating parts.
- Complex Geometries: Our process can produce intricate internal passages, thin walls, and undercuts typical of valve and pump components, eliminating the need for multiple welds or assemblies.
- Surface Finishing: Options include sandblasting, pickling, passivation, and polishing to meet cleanliness and corrosion resistance standards.
- Quality Control: Each part is inspected via pressure testing (hydrostatic or pneumatic), dimensional checks, and material certification traceable to mill test reports.
- Customization: We accept drawings and samples for non-standard sizes, special alloys, and unique pressure ratings – minimal order quantity negotiable.
| Parameter | Range / Options |
|---|---|
| Material | 304/316/316L SS, WCB, LCB, WC6, Duplex, Hastelloy (others upon request) |
| Pressure Class | 150LB, 300LB, 600LB, 900LB, 1500LB (ASME B16.34) |
| Size Range (DN) | DN15 – DN600 (1/2" – 24") |
| Weight Range | 0.1 kg – 500 kg per piece |
| Dimensional Tolerance | CT6 – CT8 (ISO 8062) |
| Surface Roughness | Ra 3.2 – 6.3 µm (as-cast); smoother after finishing |
| Testing | Hydrostatic, pneumatic, X-ray (optional), PMI (optional) |
Advantages for Your Pump & Valve Assemblies
By choosing our precision cast parts, you gain multiple benefits that directly impact your assembly's reliability and cost-efficiency:
- Reduced Machining Time: Near-net shape casting minimizes post-processing, saving you time and tooling costs.
- Leak-Free Performance: Superior dimensional consistency ensures perfect mating with seals and gaskets, reducing leakage risk under high pressure.
- Long Service Life: Our metallurgical control and heat treatment options (annealing, normalizing, quenching & tempering) enhance wear and corrosion resistance.
- Scalable Production: From prototypes to high-volume runs, our 51–100 person team and modern facilities can handle order quantities from 50 to 50,000 pieces per year.
- Global Compliance: Parts are designed to meet ASME, ANSI, DIN, and other international standards; we can also provide material certificates and traceability documents.
Our pressure-rated castings are widely used in industries such as oil & gas, chemical processing, water treatment, power generation, and marine engineering. Customers trust us for consistent quality, on-time delivery via major ports (Shanghai, Lianyungang, Qingdao, Tianjin), and competitive pricing.
Trust & Capability
Since 2014, Henan San Kuang Machinery Technology Co., Ltd. has built a reputation for reliability. Our factory occupies 10,000–30,000 m² with dedicated production lines for investment casting, heat treatment, and finishing. We implement a robust quality management system (ISO9001 certified, with other certifications available per request) and conduct 100% dimensional and pressure testing on all critical parts. Our products are shipped to over 15 countries and regions worldwide, including North America, Europe, Southeast Asia, and the Middle East. We welcome third-party inspections and sample orders to validate our capabilities. Contact us today for a quotation or technical discussion—we guarantee a response within 24 hours.
Frequently Asked Questions
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Q: What materials can you cast for high-pressure pump/valve parts?
A: We commonly cast stainless steel (304, 316, 316L), carbon steel (WCB, WCC), alloy steel (LCB, WC6), and duplex stainless steel. Other alloys like Hastelloy, Monel, or 17-4PH are available upon request. -
Q: What pressure ratings are available for your cast parts?
A: We manufacture parts to ASME B16.34 pressure classes 150LB, 300LB, 600LB, 900LB, and 1500LB. Custom pressure ratings can also be designed with additional engineering review. -
Q: What are the dimensional tolerances for your investment castings?
A: Standard tolerances are CT6 to CT8 (ISO 8062), which typically means ±0.5% of the nominal dimension within the size range. Tighter tolerances (CT4–CT5) are possible with additional tooling adjustments. -
Q: Do you provide certificates of material and testing?
A: Yes, we can issue mill test reports (MTR), material certificates, pressure test reports, and NDT reports (X-ray, dye penetrant) per your requirements. Our quality system is ISO9001 compliant, and other certifications are available on request. -
Q: What is the minimum order quantity (MOQ)?
A: For standard materials and simple geometries, MOQ is 50 pieces. For complex or custom items, we can start with 10–20 pieces after sample approval. Please discuss your specific needs with our sales team. -
Q: What is the typical lead time?
A: Lead time depends on order quantity and complexity. For a standard order of 500 pieces, approximately 30–45 days from pattern preparation to shipment. Sample orders (10–50 pcs) can be delivered in 15–25 days. -
Q: Can you cast parts with internal passages or threads?
A: Yes, investment casting can produce intricate internal geometries, including ports, channels, and even some threaded sections. Threads are typically machined post-casting for accuracy. We will advise the best approach based on your design. -
Q: How do you ensure parts meet the required pressure rating?
A: We conduct 100% hydrostatic testing (or pneumatic if specified) on all pressure-containing components. Additionally, we perform dimensional inspection, visual inspection, and optional NDT to guarantee integrity. Our in-house test pressure is typically 1.5 times the design pressure.
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