Custom Valve Parts Manufacturer
Valve Parts
China Simis Company is a specialized OEM custom manufacturer of high-integrity Metal Valve Components, including valve bodies, bonnets, discs, handwheels and control components. We provide a "total solution" approach by leveraging our full spectrum of casting capabilities—Investment Casting, Shell Mold Casting, Sand Casting, Lost Foam Casting, Pressure Die Casting, Permanent Mold Casting and Closed Die Forging. This multi-process expertise allows us to provide optimized solutions for everything from large-scale municipal water systems to high-pressure oil pipelines and precision pneumatic devices.
Our material expertise is extensive, covering Stainless Steel, Carbon Steel, Alloy Steel, Ductile Iron, Gray Iron, Aluminum Alloy, Copper Alloy, and Zinc Alloy. We ensure that every valve component is matched with the ideal material and casting process to balance structural integrity, corrosion resistance, and cost-effectiveness. All Valve Parts undergo mandatory Precision CNC Machining to guarantee the critical tolerances required for zero-leakage sealing across diverse industrial media.
What Are the Key Components of Industrial Valves?
Valve assemblies are composed of pressure-retaining components (boundary) and moving components (internals or "trim") that control flow.
| Component Name | Manufacturing Process | Applicable Materials | Critical Engineering Demand | Common Application Area |
| Valve Body | Sand Casting, Shell Mold Casting,Investment Casting | Carbon Steel, Stainless Steel, Ductile/Gray Iron | Pressure Containment; Zero porosity; Uniform wall thickness. | Oil & Gas, Water Treatment, Petrochemical. |
| Valve Bonnet | Shell Mold Casting, Sand Casting | Carbon Steel, Ductile Iron, Stainless Steel | Flange flatness; Accurate bolt hole patterns; Structural rigidity. | Industrial Pipelines, Steam Systems. |
| Valve Disc/Wedge | Investment Casting, Shell Mold Casting | Stainless Steel, Alloy Steel, Ductile Iron | Sealing Precision; High-cycle fatigue resistance; Corrosion resistance. | Gate/Globe Valves, High-Pressure Service. |
| Ball | Investment Casting, Precision CNC Machining | Stainless Steel, Alloy Steel | Surface Finish (Ra); Perfect sphericity; Scratch resistance. | Ball Valves (Chemical, Pharma, Gas). |
| Valve Seat | Investment Casting, CNC Machining | Stainless Steel, Copper Alloy, Stellite (Alloy) | Wear & Erosion resistance; Micrometer-level flatness for sealing. | Control Valves, High-Velocity Flow. |
| Actuator Housing | Pressure Die Casting, Permanent Mold Casting | Aluminum Alloy, Zinc Alloy, Ductile Iron | Lightweighting; Complex thin-walled geometry; NVH control. | Pneumatic/Electric Automation, Gas Valves. |
| Valve Stem | Closed Die Forging, CNC Machining | Stainless Steel, Alloy Steel | Torsional Strength; High tensile properties; Precision threads. | All High-Torque Valve Assemblies. |
| Manifold Block | Lost Foam Casting, Sand Casting | Ductile Iron, Aluminum Alloy | Internal Channel Consistency; Integrated flow paths; No leak paths. | Hydraulics, Mobile Power, Process Control. |
| Handwheel/Lever | Sand Casting, Pressure Die Casting | Gray Iron, Aluminum Alloy, Carbon Steel | Ergonomics; Impact toughness; Corrosion-resistant coating. | Manual Valve Operation (All Sectors). |
What Manufacturing Processes Are Used for Custom Valve Parts?
We match the optimal casting method to the specific material properties and geometric complexity of the valve component.
| Manufacturing Process | Applicable Material Range | Application Focus for Valve Parts | Core Advantage |
| Investment Casting | Stainless Steel, Carbon Steel, Alloy Steel | Precision ball valve bodies, high-pressure discs, and sanitary valve components. | Highest dimensional accuracy and surface finish; minimizes machining for high-strength alloys. |
| Sand Casting | Carbon Steel, Alloy Steel, Ductile Iron, Gray Iron, Copper Alloy | Large-diameter gate, globe, and check valves for oil, gas, and water treatment. | Most cost-effective method for massive, heavy-walled, and large-sectioned valve bodies. |
| Shell Mold Casting | Carbon Steel, Ductile Iron, Stainless Steel | High-quality industrial valve bodies and bonnets requiring high dimensional repeatability. | Superior surface finish and dimensional stability compared to sand casting; ideal for automated production. |
| Lost Foam Casting | Ductile Iron, Gray Iron, Aluminum Alloy | Complex hydraulic manifold blocks and multi-way valve bodies with intricate internal channels. | Eliminates internal cores; ensures consistent internal flow paths for complex fluid dynamics. |
| Pressure Die Casting | Aluminum Alloy, Zinc Alloy | High-volume pneumatic actuator housings and small gas control valve bodies. | Highest production speed and near-net-shape accuracy for lightweight alloy components. |
| Permanent Mold Casting | Aluminum Alloy, Copper Alloy | Brass/Bronze valve bodies and high-quality aluminum fuel/gas valve components. | Better material density and lower porosity than die casting; ideal for pressure-tight sealing. |
| Precision CNC Machining | All Alloys | Mandatory finishing for valve seats, sealing grooves, stems, and flange faces. | Ensures the micrometer precision necessary for airtight and high-pressure fluid containment. |
How to Select the Right Material for Industrial Valve Components?
Our material range covers the entire spectrum of industrial flow control requirements, from general purpose to extreme service.
| Material Type | Core Performance Attributes | Primary Application Scenarios for Valve Parts |
| Carbon Steel | Excellent mechanical properties, good weldability, and high durability. | Mainstream Oil & Gas valves, industrial pipelines, and high-pressure service. |
| Alloy Steel | Exceptional strength and resistance to thermal creep or high-pressure stress. | Power generation (Steam valves) and high-stress petrochemical applications. |
| Stainless Steel | Ultimate corrosion resistance and high-temperature stability. | Chemical, Pharmaceutical, Food & Beverage, and Marine valves. |
| Ductile Iron | High strength, impact resistance, and cost-effectiveness. | Standard industrial, fire protection, and municipal water valves. |
| Gray Iron | Exceptional lightweighting and good corrosion resistance. | Low-pressure municipal valves, agricultural irrigation, and HVAC. |
| Aluminum Alloy | Cost-effective, Moderate Pressure/Damping. (Grey Iron/Ductile Iron) | Pneumatic actuators, gas meters, and mobile hydraulic valve bodies. |
| Copper Alloy | Superior resistance to seawater corrosion; non-sparking. | Marine valves, seawater desalination, and gas safety equipment. |
What Are the Main Types of Industrial Valves and Their Core Functions?
China Simis Company provides tailored manufacturing strategies for each major valve category. By matching the valve's mechanical design with the optimal casting and machining process, we ensure maximum durability and cost-efficiency.
| Valve Type | Key Components Produced | Primary Manufacturing Process | Applicable Materials | Engineering & Technical Focus |
| Ball Valve | Ball, Body, Bonnet, Seat Rings | Sand Casting, Investment casting, | Stainless steel, carbon steel, alloy steel, copper alloy | Sphericity & Surface Finish (Ra); High-pressure sealing integrity; Wear resistance. |
| Butterfly Valve | Disc, Valve Body, Valve Stem | Shell Mold Casting, Sand Casting, Gravity Casting | Ductile iron, stainless steel, aluminum alloy, | Dynamic balance of the disc; Concentricity of the shaft bore; Smooth sealing edge finish. |
| Gate Valve | Valve disc (Plug), valve body, valve plug, valve stem | Sand Casting, Shell Mold Casting | Carbon steel, stainless steel, ductile iron/gray iron | Precision internal flow geometry to reduce pressure drop; High-temperature creep resistance. |
| Check Valve | Valve body, hinge, flapper | Lost Foam Casting, Investment Casting | Stainless Steel, Ductile Iron, Carbon Steel, Gray Iron | Pivot point alignment; Fatigue strength of the hinge; Clean internal channels for unobstructed flow. |
| Solenoid / Control Valve | Actuator Housing, Small Body, Piston | Pressure Die Casting, Lost Foam Casting | Aluminum Alloy, Zinc Alloy, Stainless Steel | Lightweighting; Thin-walled complexity; High dimensional repeatability for automated assembly. |
| Multi-way / Manifold Valve | Multi-way Block, Integrated Manifold | Lost Foam Casting | Ductile Iron, Aluminum Alloy | Integrated Internal Flow Paths; Zero leakage under high pressure; Minimal fluid turbulence. |
What Quality Assurance Measures Ensure Pressure Boundary Certification for Valve Parts?
Valve components are API/ASME pressure boundary components. Quality control must focus on preventing leaks and ensuring sealing integrity.
·Hydrostatic Testing:
Mandatory pressure testing of all final machined valve bodies and bonnets to ensure they can withstand the specified shell test pressure without leakage, certifying the pressure boundary integrity.
·Nondestructive Testing (NDT):
RT or UT is required for critical steel/alloy castings (A216) to verify internal soundness. MPI or LPI is used for surface flaw detection.
·Sealing Surface Precision:
The Valve Seat and Disc/Gate mating surfaces are machined to micrometer-level flatness and finish to guarantee bubble-tight shutoff and prevent leakage.
·Traceability and Compliance:
We maintain full material traceability and documentation (MTRs) to certify compliance with all dimensional, chemical, and pressure codes (API 600, ASME B16.34).
What Are the Key Application Fields of Industrial Valves and Valve Components?
·Water supply and sewage treatment
Valves are used in municipal water distribution systems, wastewater treatment plants, irrigation networks, and flood control stations. Gray cast iron and ductile iron valve bodies produced by sand casting or shell molding casting provide vibration damping and durability for continuous operation.
·Power generation
Valves are applied in thermal power plants, nuclear stations, hydropower facilities, and renewable energy systems. Carbon steel and alloy steel valve components produced by sand casting or closed-die forging withstand high temperature, high pressure, and thermal cycling. Stainless steel valves are used in condensate and feedwater systems where corrosion resistance is critical.
·Petrochemical and oil & gas
Valves are essential in crude oil refining, petrochemical processing, natural gas transmission pipelines, and offshore platforms. Alloy steel and stainless steel valve bodies produced by lost-wax casting or precision forging ensure strength, sealing reliability, and chemical resistance under harsh conditions.
·Marine and offshore industry
Valves are widely used in ship engine cooling systems, ballast water management, and offshore drilling platforms. Aluminum bronze and stainless steel valve components produced by sand casting or lost-wax casting provide excellent seawater corrosion resistance and long service life.
·Fire protection systems
Valves are used in sprinkler systems, hydrant networks, and fire pump systems. Ductile iron and brass valve bodies produced by sand casting or lost-wax casting ensure quick response, corrosion resistance, and long-term reliability.
·Food and beverage industry
Stainless steel valves produced by lost-wax casting are applied in dairy processing, brewing, beverage filling, and water purification systems. Smooth internal surfaces ensure hygiene and easy cleaning, complying with sanitary standards.
·Pharmaceutical and medical equipment
Valves are used in cleanroom pipelines, sterile fluid control systems, medical gas distribution, and pharmaceutical production. Stainless steel valve components manufactured by lost-wax casting or precision machining guarantee hygienic surfaces, corrosion resistance, and contamination-free operation.
·Mining and mineral processing
Valves are installed in slurry pipelines, tailings disposal systems, and chemical leaching processes. Ductile iron and wear-resistant alloy valve bodies produced by sand casting or lost foam casting deliver high wear resistance and impact toughness.
·HVAC and building systems
Brass and ductile iron valves control heating, cooling, and plumbing systems in commercial and residential buildings. Sand casting or lost-wax casting ensures compact structure, corrosion resistance, and reliable service.
·Automotive, railway, and transportation
Valves are applied in fuel systems, braking systems, and pneumatic controls. Carbon steel, stainless steel, and brass valve parts produced by precision forging or machining provide high pressure resistance and reliable sealing.
·Aerospace and lightweight equipment
Aluminum alloy valves produced by permanent mold gravity casting are used in aerospace hydraulic systems, portable pumping units, and other lightweight applications where weight reduction and precision flow control are required.
·Chemical, paper, and textile industries
Valves are used for process control in chemical reactors, pulp and paper manufacturing, and dyeing systems. Alloy steel, stainless steel, and bronze valves produced by shell molding casting or lost-wax casting offer chemical resistance and long service life.
What Are the Advantages of Simis OEM Custom Manufacturing Valve Parts?
Partnering with Simis ensures certified pressure integrity, long-term operational safety, and full code compliance:
·Guaranteed Pressure Integrity:
Our strict use of NDT and mandatory Hydrostatic Testing eliminates internal defects, ensuring the valve body maintains a secure pressure boundary throughout its operational life.
·Comprehensive Process Expertise:
We utilize the optimal process—Forging for strength/wear components, Investment Casting for steel precision, and Die/Gravity Casting/LFC for non-ferrous and cast iron efficiency—to meet diverse requirements.
·High-Temperature/Pressure Code Compliance:
We specialize in casting and forging alloy steels to ASTM A217 and A182 specifications, providing full documentation required for API and ASME pressure services.
·Precise Sealing Geometry:
We utilize CNC precision machining for internal components (disc, seat) to guarantee the dimensional and surface finish quality required for bubble-tight sealing and minimal fugitive emissions.
How to Get a Quote for Custom Metal Valve Components?
China Simis Company is your expert global partner for custom cast and forged valve components, engineered for superior pressure integrity, high-temperature service, and full industry code compliance.
Please submit your 2D technical drawings, CAD models, and specific requirements for valve type (Gate, Globe, etc.), API/ASME pressure class, mandatory NDT level, fluid medium, and the target material grade (e.g., WCB, CF8M or Bronze) to our engineering department for a consultation and detailed quotation.
