High precision stainless steel pressure reducing valve
This pressure reducing valve has the following characteristics
Pressure characteristics: the high-pressure input realizes low-pressure output through pressure characteristic calibration. The accurate pressure acquisition system monitors the high-pressure input. After calibration, the designed low-pressure output can be obtained, and the low-pressure output and flow can be detected online
Flow locking: the rated flow can be designed to deflate, and the leakage can be realized by high-pressure locking for a long time
Under the condition of certain flow load, the inlet pressure is pressed to the predetermined outlet pressure, which has the characteristics of lightweight structure, high adjustment precision and long life.
Application industry：
Stainless steel pressure reducing valves are mainly used in aerospace arrow valve and engine valve, shipbuilding and nuclear industry
Technical Parameters
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Nominal Diameter
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Inlet:DN8,DN10,DN12,DN16
Outlet:DN10,DN12,DN16,DN22
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Inlet Pressure
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2.5MPa±0.5MPa,12MPa~2.4MPa,
23MPa~4.5MPa,35 MPa~6 MPa(8MPa), 35MPa
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Outlet Pressure
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0.76MPa~4MPa
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Accuracy
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±0.03MPa~±1.0MPa
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Nitrogen Pressure
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1.2MPa~500.0MPa
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Weight
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0.27 kg~2.5 kg
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Medium
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Helium,Nitrogen,Air
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Manufacturing characteristics of aerospace special valves:
※Parts production of small batch, high precision
Digital manufacturing process as far as possible, adopt the digital model of parts, through the CNC machining center, CNC lathe for manufacturing, shorten the progress of small batch trial production, and meet the accuracy requirements of parts.
※High quality requirements, strict control of excess objects
Compared with general valves, aerospace valves have more stringent quality control and higher requirements, usually polishing the surface of the parts to ensure surface quality and motion flexibility, and to flow the internal flow channel to prevent excess material.
※Process quality control and traceability
Due to the installation space and lightweight requirements of aerospace valves, the product shape structure and internal flow channel are relatively special, usually need to use three-coordinate meter, high-precision endoscope to record the manufacturing parameters of parts.
※The assembly process is controlled
Valve assembly shall be completed in the clean room within 100,000 level; During assembly, the coordination gap between parts should be recorded, and key parts shall be recorded in the surface quality and appearance status by multimedia.
※The test process is fully covered
The valve manufacturer needs to complete all kinds of valve tests, such as strength test, performance test (including switch response performance, fluid resistance, flexibility test and environmental adaptability test, etc.).
Why choose us?
WEIMAI Core technology
1.Ultra thin precision welding technology
Precision welding of stainless steel, superalloy, titanium alloy and other materials with a thickness of 0.06-0.5mm
2.Stamping precision forming technology
Improvement of process technology, improvement of material stamping performance, die design and manufacturing technology
3.High quality conformal co controlled heat treatment technology
4.reliability design
Provide product scheme design / simulation analysis through flow field analysis, structural analysis and electromagnetic analysis
Production Process
