EN856 4SP MSHA DN16 hose assembly
EN856 4SP MSHA DN16 hose assembly is a high-performance hose assembly designed for high-pressure hydraulic systems. Its working pressure is up to 5510 PSI (about 380 bar), which meets the EN856 international standard and MSHA (Mine Safety and Health Administration) certification requirements. DN16 means that the hose diameter is 16 mm, which is a medium-sized high-pressure hydraulic pipeline.
Main use scenarios
This high-pressure hose assembly is widely used in high-pressure hydraulic systems under various harsh working conditions:
1. Mining machinery and equipment: Thanks to MSHA certification, it is particularly suitable for the hydraulic systems of underground mining equipment and open-pit mining machinery, such as rock drills, hydraulic supports, mining trucks, etc.
2. Engineering machinery: Suitable for high-pressure hydraulic circuits of heavy engineering machinery such as excavators, loaders, cranes, etc.
3. Oil drilling equipment: used for hydraulic systems of oil equipment such as drilling rigs and well repair rigs.
4. Iron and steel metallurgical equipment: hydraulic transmission under high temperature and high pressure environments such as continuous casting machines and rolling mills.
5. Shipbuilding and marine engineering: ship hydraulic systems such as deck machinery and steering gear.
6. High-pressure cleaning equipment: core pipelines of industrial-grade high-pressure cleaning machines.
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Process characteristics
EN856 4SP MSHA DN16 hose assembly has the following excellent process characteristics:
1. Multi-layer reinforcement structure:
Inner rubber layer: oil-resistant and corrosion-resistant synthetic rubber is used to ensure the purity of the medium
Reinforcement layer: 4 layers of high-strength steel wire braiding (4SP means 4 layers of steel wire braiding), providing extremely high bursting pressure
Outer rubber layer: rubber material with excellent wear resistance, aging resistance and weather resistance, and the surface may be protected by spiral steel wire
2. Special material formula:
The rubber formula has been optimized, and the oil resistance meets the requirements of EN856 standards
Excellent ozone and UV resistance, suitable for outdoor use
The temperature range is usually between 40°C and +100°C
3. Precision manufacturing process:
Precision braiding equipment is used to ensure uniform distribution of steel wire layers
The vulcanization process is strictly controlled to ensure the bonding strength between layers
The pipe body has high roundness and excellent pulse performance
4. Joint process:
Connected by cold crimping or hot vulcanization
The joint material is mostly carbon steel or stainless steel, which has strong corrosion resistance
The sealing structure design is reliable to prevent high-pressure leakage
Installation Guide
Correct installation is crucial to the service life of the EN856 4SP MSHA DN16 hose assembly:
Installation steps
1. Route planning:
Avoid sharp bends, the minimum bending radius should be ≥ 6 times the outer diameter of the hose
Reserve appropriate length, considering the shrinkage under pressure (about +4%~2%)
Keep away from heat sources and sharp edges, and use protective sleeves when necessary
2. Correct connection:
Align the joint, tighten it manually and then tighten it with tools
Use cross tightening to ensure that the sealing surfaces are parallel and fit
The torque value should meet the manufacturer's recommendation, and the DN16 joint is usually 120150N·m
3. Fixed support:
Set pipe clamps every 11.5 meters
The pipe clamp should not be too tight, and axial micro-movement is allowed
Add support near the joint to reduce vibration stress
EN856 4SP MSHA DN16 high pressure hose assembly provides reliable hydraulic transmission solutions in harsh industrial environments with its excellent design and manufacturing process. Correct selection, installation and maintenance will ensure its optimal performance and extend its service life.
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