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Stainless Steel Coal Mine Joint
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Overview of Stainless Steel Coal Mine Joints
Stainless steel coal mine joints are specially designed for mining environments and need to have characteristics such as high pressure resistance, corrosion resistance, and explosion-proof. They are often used in scenarios such as hydraulic systems, gas drainage, and pipeline connections .
Main types and characteristics
Quick connector
K-type joint : suitable for hydraulic supports, it adopts a crimping design and is resistant to high pressure (such as KJ3-51 three-way joint) .
Clamp-type couplings : such as DN108 grooved quick couplings, which are easy to install and disassemble, are suitable for flexible pipe connections .Explosion-proof union
One internal and one external thread design (such as DN32 specification), made of stainless steel, can resist damp and dusty environments and prevent loosening and leakage.
Hydraulic joint
Including straight-through, tees, reducers, etc. Some are made of 304 stainless steel and are compatible with high-pressure oil pipes (such as JIC American standard interfaces) .
Key performance requirements
Pressure resistance : The working pressure should be ≥1.6MPa, and some models can reach 6.9MPa.
Sealing property : Concave metal sealing rings or O-rings ensure airtightness .
Anti-corrosion : 304 stainless steel material can resist chemical corrosion and humid environments .
Application scenarios
Hydraulic system : connecting brackets, cylinders and other equipment, such as KJ10 series straight-through joints .
Gas drainage : Steel braided composite pipe clamp joints are used for sealing gas pipelines .
Drainage pipes : clamp-type joints of DN150 and above are suitable for mine drainage .
Purchase and installation suggestions
Matching specification : Select the corresponding joint based on the outer diameter of the pipe (such as DN32, DN108).
Installation precautions : Tighten the bolts symmetrically to avoid local leakage; Elastic pressure pads should be added in high-pressure scenarios to prevent loosening .
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Sheng Long
Coal Machinery Parts
A professional manufacturer specializing in the production and sale of coal mine accessories, high-pressure oil pipes, metal hoses and rubber and plastic products.
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