Views: 0 Author: Site Editor Publish Time: 2026-05-21 Origin: Site
Hydraulic valves are indispensable core control components for all kinds of mining machinery. They regulate hydraulic flow, system pressure and mechanical movement, widely applied to hydraulic supports, roadheaders, shearers and mining transport vehicles, laying a solid foundation for safe and efficient mining operation.
Mining sites are always under high pressure, heavy load and harsh working conditions. Professional mining hydraulic valves are manufactured with matched high-strength materials and mature heat treatment technology. Most valve spools are processed to hardness HRC58-62, possessing great wear resistance and impact resistance.
Different sealing materials such as NBR and FKM are adopted to adapt to emulsion fluid and common hydraulic oil. With stable pressure maintaining capacity and low internal leakage, these valves can effectively avoid equipment abnormal movement and potential safety risks. Correct model selection and routine maintenance help stabilize equipment performance, extend service life and ensure continuous and orderly mining production.
Mining Hydraulic Valve Specification Table
Valve Type | Applicable Equipment | Rated Pressure | Main Flow Rate | Valve Body Material | Spool Material | Suitable Medium | Main Function |
Electro-hydraulic Directional Main Valve | Fully-mechanized Mining Hydraulic Support | 31.5MPa | 300-500L/min | Cast Steel ZG270-500 | 20CrMnTi Carburized & Quenched | 5% Emulsion Fluid | Control column and jack expansion & contraction |
Mining Safety Valve | Hydraulic Support, Roadheader | 31.5-42MPa | 60-200L/min | Ductile Iron QT500-7 | 40Cr Quenched & Tempered | Emulsion / Hydraulic Oil | Overflow pressure relief, system pressure stabilization |
Hydraulic Control Check Valve | Hydraulic Support | 31.5MPa | 80-300L/min | Cast Steel ZG270-500 | 40Cr Hard Chrome Plated | Emulsion Fluid | Pressure locking, prevent support sinking |
Bi-directional / Uni-directional Lock Valve | Support Side Thrust & Pushing Cylinder | 31.5MPa | 40-120L/min | QT500-7 | Alloy Nitrided | Emulsion Fluid | Precise locking and positioning |
Mining Pilot Valve | Full Hydraulic Support Control System | 25-31.5MPa | 5-15L/min | Precision Cast Aluminum + Cast Steel | Stainless Steel Spool | Emulsion Fluid | Small flow control main valve action |
Explosion-proof Multi-way Directional Valve | Roadheader, Shearer | 28-35MPa | 150-400L/min | Ductile Iron QT500-7 | 40Cr | Anti-wear Hydraulic Oil | Centralized control for walking, cutting and conveying |
High Pressure Counterbalance Valve | Mining Crane, Scraper Conveyor | 35-42MPa | 100-250L/min | Forged Steel 42CrMo | 20CrMnTi | Hydraulic Oil | Prevent load sliding, stable start & stop |
Lifting Multi-way Valve | Mining Dump Truck, Mining Truck | 25-31.5MPa | 200-350L/min | QT500-7 | 40Cr | Industrial Hydraulic Oil | Cargo box lifting and tilting control |
Two-way Cartridge Valve Group | Large Hydraulic Pump Station | 35-42MPa | 500-1200L/min | Forged Steel 42CrMo | High Hardness Alloy Steel | High & Low Viscosity Hydraulic Oil | Large flow integrated hydraulic system |
Mining Stop Valve | All Mining Hydraulic Pipelines | 31.5MPa | General | Cast Steel | Stainless Steel | Universal Medium | Oil circuit on-off, maintenance cut-off |
Explosion-proof Solenoid Directional Valve | Underground Automatic Equipment | 25-31.5MPa | 20-60L/min | Explosion-proof Cast Steel Housing | Stainless Steel | Hydraulic Oil / Emulsion Fluid | Underground electric automatic direction change |
Turkey’s mining sector is expanding rapidly, with strong demand for hydraulic valves in boron, chromium and coal mines. Priorities include high-pressure resistance (31.5–42MPa), IP68 dust/water protection for wet, dusty underground conditions, and compatibility with 5% emulsion fluid. Local operations also require modular, easy-to-maintain designs and intelligent electro-hydraulic valves for automated mining systems, aligning with Turkey’s push for modern, safe and efficient mining.
