Product Overview
The High Pressure Bimetal Pump Valve Plate is designed for hydraulic pumps operating under high pressure, heavy loads, and frequent pressure impact.
It is suitable for continuous operation in mining machinery, metallurgical equipment, and heavy construction machinery.
Alloy Material
The friction surface uses CuPb24Sn4 high-lead bronze.
The higher lead content provides improved self-lubricating performance under demanding pressure and temperature conditions.
Alloy Layer Thickness
The alloy layer thickness is 0.7–1.2 mm.
This layer provides the friction and wear surface required for high-pressure pump operation.
Pressure Performance
The rated working pressure is up to 35 MPa. Peak pressure resistance reaches 42 MPa.
The fatigue strength is at least 125 MPa.
Dimensional Stability
End-face flatness is controlled within 0.003 mm. Surface roughness is Ra 0.15 μm or better.
The plate shows very limited deformation under high-pressure loading.
Leakage Control
According to the supplied product data, end-face leakage is 40% lower than that of an ordinary bimetal side plate.
Lower leakage supports stable volumetric efficiency and reduces energy loss inside the pump.
Thermal Seizure Resistance
The bronze layer provides resistance to thermal seizure during frequent starts, stops, and pressure impact.
The maximum working temperature is 280°C.
Pressure Compensation Compatibility
The High Pressure Bimetal Pump Valve Plate is designed to work with pressure compensation structures in high-pressure pumps.
Precise end-face contact helps support stable operation during extended working cycles.
Application Areas
The product is suitable for high-pressure hydraulic pump assembly and maintenance.
Typical equipment includes mining machinery, metallurgical equipment, and heavy-duty engineering machinery.
Custom Production
Manufacturing is available according to customer drawings or physical samples.
The minimum order quantity is 100 pieces, and several models or specifications may be combined in one order.
Sample and Delivery Time
Custom samples normally require 30 days. Urgent orders may be completed approximately five days earlier.
Standard delivery is 25–30 days. Repeat orders may be delivered about one week earlier.
Factory Background
The company's bimetal production experience began in 1995. It was officially registered in 2010 with registered capital of RMB 18.5 million.
Large-order discounts are discussed according to the order quantity and specifications.
Product Specifications
|
Parameter |
Specification |
|
Alloy Layer Material |
CuPb24Sn4 high-lead bronze |
|
Alloy Layer Thickness |
0.7–1.2 mm |
|
Working Pressure |
Rated ≤35 MPa; peak 42 MPa |
|
Fatigue Strength |
≥125 MPa |
|
Maximum Working Temperature |
280°C |
Material Specifications
|
Layer |
Material Grade |
Strength Type |
Strength (MPa) |
Max. Linear Velocity (m/s) |
Hardness (HB) |
Remarks |
|
Copper Alloy Friction Layer |
CuPb10Sn10 |
Shear Strength |
≥150 |
12 |
60–90 |
Surface coating available |
|
Copper Alloy Friction Layer |
CuPb7Sn7Zn3 |
Shear Strength |
≥150 |
10 |
60–90 |
Surface coating available |
|
Steel Substrate |
SAE1010 |
Tensile Strength |
≥365 |
- |
90–130 |
Mild carbon steel |
|
Steel Substrate |
Q235B |
Tensile Strength |
370–500 |
- |
90–130 |
Mild carbon steel |
|
Steel Substrate |
Q345B |
Tensile Strength |
490–675 |
- |
110–170 |
Low-alloy steel |
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