Product Specifications

Parameter	Value
Base Material	A356 Aluminum Alloy (Gravity casting / Low-pressure casting)
Heat Treatment State	T6 Solid solution and aging treatment
Mechanical Properties (A356-T6)	Tensile ≥220MPa, Yield ≥140MPa, Elongation ≥3%
Dimensional Tolerance (<500mm)	≤±0.02mm
Dimensional Tolerance (>500mm)	≤±0.04mm
Sealing Surface Roughness	Ra≤1.6μm
Flow Passages / Mounting Surfaces	CNC finished, passages cleaned
Pressure Testing	Hydrostatic testing / Air leak testing available (as agreed)
Surface Finish	Burrs removed, threads chamfered, cleaned and washed
Typical Applications	Fluid piping valves, hydraulic valve bodies, cooling circuit valve bodies, new energy fluid control valves

Lightweight Valve Bodies for Fluid Control

We produce aluminum alloy valve bodies as a showcase of our complete capability. This product involves both casting and precision machining. We use gravity casting or low-pressure casting to make A356 aluminum alloy valve body blanks. Then we do T6 heat treatment. Then we use CNC machines to finish the sealing surfaces, flow passages, and mounting threads. The value of aluminum valve bodies is weight reduction. Compared to traditional steel valve bodies, aluminum valve bodies weigh about one-third as much. This weight saving is important for mobile equipment and weight-sensitive applications.

Material and Mechanical Properties

The base material is A356 aluminum alloy. We use gravity casting or low-pressure casting. The casting is given T6 heat treatment. The tensile strength is at least 220 MPa. The yield strength is at least 140 MPa. The sealing surfaces are finished with CNC machining. The surface roughness is Ra 1.6 micrometers or less. The flow passages and mounting surfaces are also finished. The dimensional tolerance for valve bodies under 500 millimeters is plus or minus 0.02 millimeters. For valve bodies over 500 millimeters, the tolerance is plus or minus 0.04 millimeters. We can do hydrostatic testing or air leak testing as you specify.
In-House Complete Process

We are different from shops that only machine valve bodies. We have the casting shop, the heat treatment shop, the machining shop, and the testing lab all in one facility. The casting and heat treatment quality is under our control. We do not rely on outside suppliers for these steps. This gives us better process continuity and delivery reliability. Our lab has a spectrometer, universal testing machine, ultrasonic flaw detector, and hardness tester. We provide a material report and mechanical report with every batch. Sealing surface dimensions are recorded. Hydrostatic or air test reports are provided as agreed.

Reliable Sealing and Light Weight

Our aluminum valve bodies are used in fluid control equipment. Customer feedback focuses on two points. The sealing is reliable. And the weight is much lower than steel valve bodies. We support custom orders based on your drawings. The minimum order quantity is 1 piece. The sample lead time is about 3 months. We refund the sample fee with a larger order. We support OEM and ODM. We accept third-party inspection. Our warranty is 6 months.

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