Brass valve components

Product Overview: Brass Valve Components

Our brass valve components are precision-customized cast parts tailored for various valve types, including ball valves, gate valves, globe valves, check valves, and butterfly valves. Core products cover valve bodies, valve cores, valve seats, valve discs, valve covers, and valve stems—all crafted from high-performance brass alloys (H62, H65, H68) that meet the strict requirements of fluid control systems. The core functions include reliable fluid shut-off and regulation, leak-proof sealing, resistance to medium corrosion (water, oil, gas, chemical reagents), and adaptation to different pressure and temperature working conditions (pressure up to 4.0MPa, temperature -20℃~120℃). Leveraging advanced brass casting technology, our parts feature uniform material structure, precise dimensional accuracy, and excellent mechanical properties, ensuring the stable and efficient operation of valves. Meanwhile, we supply matching cast iron or stainless steel auxiliary components (such as valve brackets, handwheels) to meet comprehensive assembly needs of valve manufacturers. All products comply with international valve industry standards (API, ANSI, DIN) and pass strict sealing and pressure-bearing tests, providing reliable quality guarantees for fluid control systems.

Production Processes & Workflow (Valve-Specific Optimization)

Combining our expertise in brass casting and the special requirements of valve components (sealing, pressure-bearing), we adopt a standardized and visualized production process to ensure the quality and performance of each casting. The core production process (focused on sand casting and low-pressure casting for brass) includes:

1. Valve Industry Demand Analysis & Design Optimization: Our professional engineers, with rich experience in valve component design, conduct in-depth communication with customers to clarify requirements (valve type, working pressure, medium type, dimensional tolerance, sealing performance). Using CAD/CAM/CAE software, we perform 3D modeling and finite element analysis to simulate fluid flow and pressure-bearing performance. We optimize the part structure to enhance sealing performance and pressure-bearing capacity, avoiding stress concentration and dead zones in fluid channels. For sealing-critical parts (valve seats, valve cores), we design precise matching structures to ensure zero leakage.

2. High-Quality Brass Selection & Inspection: Strictly select brass alloys with excellent casting performance, corrosion resistance, and machinability (H62, H65, H68) from authorized suppliers. These materials are specially processed to reduce internal impurities and ensure uniform composition. We conduct comprehensive raw material testing, including chemical composition analysis (via spectrometer), mechanical property detection (tensile test, hardness test), and corrosion resistance testing, to ensure they meet the performance requirements of valve components.

3. Precision Mold Making for Valve Parts: For brass valve components with complex structures (such as valve bodies) and high precision requirements, we adopt high-precision mold manufacturing technology. The mold core and cavity are processed by CNC machining centers and EDM to ensure dimensional tolerance ±0.02mm. For small-batch custom valve projects, we use rapid mold development technology, shortening the mold cycle by 25% to help customers accelerate new product launch.

4. Core Casting Process (Sand/Low-Pressure Casting): We mainly adopt sand casting and low-pressure casting for brass valve components. Sand casting is suitable for complex-structured valve bodies and small-to-medium batch production, ensuring good shape adaptability. Low-pressure casting is applied to precision parts (such as valve cores, valve seats), which enhances material density and sealing performance by utilizing stable pressure pouring. The casting temperature is precisely controlled at 1080-1150℃, and the pouring speed is adjusted to avoid oxidation and internal defects. For parts requiring high corrosion resistance, we adopt vacuum casting technology to reduce internal porosity.

5. Valve-Oriented Post-Casting Processing: After casting, parts undergo trimming, shot blasting (SA2.5 standard), and deburring to remove surface defects. Precision machining is then performed using CNC lathes and milling machines to ensure key sealing and assembly dimensions (such as valve seat fitting tolerance) meet requirements. For valve stems and other moving parts, we conduct grinding and polishing to reduce friction and improve wear resistance.

6. Targeted Surface Treatment for Valves: Provide surface treatment options adapted to different fluid media and working environments: electroplating (chrome/nickel plating) to enhance wear resistance and corrosion resistance; passivation to improve oxidation resistance; epoxy resin coating for outdoor valve components to resist weathering; tin plating for parts in contact with drinking water (complying with FDA standards). All treatments comply with environmental standards (RoHS) and do not affect fluid safety.

7. Strict Valve-Specific Quality Inspection: Implement multi-level quality control tailored to valve components. Key inspections include: dimensional inspection (via Coordinate Measuring Machine, CMM) to ensure precision; non-destructive testing (ultrasonic, X-ray) to detect internal defects; sealing test (hydrostatic/pneumatic pressure test) to verify leak-proof performance; pressure-bearing test to confirm pressure resistance; and corrosion resistance testing (salt spray test). Only products passing all inspections and obtaining quality inspection reports can be delivered.

In addition to the core sand and low-pressure casting processes, we also master die casting and centrifugal casting technologies, which can be flexibly applied to auxiliary valve components (such as cast iron valve brackets) or small precision brass parts, providing comprehensive production support for valve manufacturers.

Product Classification & Technical Parameters

3D Classification Table (Industry / Material / Part Type)

Technical Parameter Table

Our Core Competitiveness (Brass Valve Expertise)

With years of focused experience in brass valve components, we have formed unique competitive advantages to serve the global valve industry:

• Valve-Specialized Technical Team: A team of 35+ professional engineers, 12+ of whom have 5+ years of experience in valve component design and brass casting. We are proficient in international valve standards (API, ANSI, DIN) and can quickly provide technical solutions for custom needs, including sealing optimization and pressure-bearing structure design.

• Strong Valve-Oriented Production Capacity: Our 12,000-square-meter factory is equipped with 50+ sets of advanced equipment (brass melting furnaces, low-pressure casting machines, CNC machining centers, CMM, pressure test benches). The annual production capacity of brass valve components reaches 50,000 tons, capable of meeting both small-batch custom projects and large-volume mass production needs of valve manufacturers.

• Strict Quality Management System: Certified by ISO 9001:2015, CE, API 6D, and NSF 61. We have established a valve component-specific quality control system with 12+ key inspection points, including sealing test and pressure-bearing test, ensuring a product qualification rate of 99.8%.

• Valve Material-Focused Supply Chain: Long-term cooperation with 10+ well-known brass suppliers (specializing in valve-grade materials) ensures stable supply of high-purity, uniform-composition raw materials. We have established a raw material traceability system to ensure each batch of products can be traced back to the source.

• Global Shipping & Valve Industry Service: Cooperate with 5+ international logistics companies (Maersk, COSCO, DHL) to provide flexible trade terms (FOB, CIF). We have rich experience in valve component export, including compliance document preparation (customs clearance, certification materials), with products exported to 50+ countries and regions, on-time delivery rate 99%.

• Comprehensive Quality Assurance Service: 12-month quality guarantee period for all brass valve components. If quality problems occur due to our production.

Customer Case: Custom Brass Valve Components for a European Water Supply Equipment Manufacturer

A leading European water supply equipment manufacturer approached us to customize brass H65 valve bodies and valve cores for their new generation of anti-leak ball valves. Their core requirements included: compliance with NSF 61 and FDA standards (for drinking water contact), sealing test pressure 3.0MPa (no leakage), dimensional tolerance ±0.03mm, corrosion resistance to tap water (1000-hour immersion test), and a delivery cycle of 25 working days (including mold development). Our valve-specialized technical team conducted finite element analysis on the original design, optimizing the valve core structure to enhance sealing contact area by 15% and improve leak-proof performance. During mold development, we used rapid prototyping technology to complete the mold in 10 working days and provided 8 sets of samples for sealing and corrosion resistance testing. In production, we adopted low-pressure casting for valve bodies and cores to ensure material density, and performed tin plating surface treatment to meet drinking water safety requirements. Finally, we delivered 1,500 sets of products 1 day in advance, all passing the customer's strict inspection (including sealing test, NSF 61 certification verification, and corrosion resistance test). Up to now, we have maintained a long-term cooperative relationship, with an annual order volume of 3,000+ sets, and have successively customized 4 types of brass valve components for their water supply valve product line.

Why Choose Us for Brass Valve Components?

Choosing us as your brass valve components supplier means you partner with a professional team that deeply understands the core demands of the valve industry. Here are the key reasons for cooperation:

• Valve Industry Expertise: We focus on brass valve components, with rich experience in solving pain points such as sealing, pressure-bearing, and corrosion resistance. Our technical solutions are tailored to valve type and fluid control scenarios, ensuring products perfectly match your valve performance requirements.

• Superior Product Quality & Compliance: Strict raw material selection, valve-specific production processes, and international certifications (API, NSF 61, CE) ensure our components meet the safety and performance requirements of fluid control systems and pass customs clearance and market access inspections in various countries.

• Efficient Customization & Delivery: Advanced rapid mold development technology and strong production capacity shorten the customization cycle, helping you launch new valve products faster and seize market opportunities.

• One-Stop Global Service: Our professional foreign trade team provides full-process services for valve component export, including certification application (NSF 61, API), document preparation, and logistics tracking. Global logistics partners ensure timely delivery to your designated location.

• Long-Term Win-Win Cooperation: We adhere to the concept of growing with customers, providing competitive prices based on scale advantages. We actively participate in your new product R&D stage, offering technical support to optimize component design and improve the overall performance and reliability of valves.

Common Casting Problems & Solutions for Brass Valve Components

Contact Us

If you need custom brass valve components or have requirements for valve cast parts, please feel free to contact us. You can send us your valve type parameters, component drawings, or working condition requirements, and our valve-specialized technical team will reply within 24 hours with detailed technical solutions and quotations. We look forward to establishing long-term and stable cooperative relationships with you, contributing to the safety and efficiency of global fluid control systems!