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Oilfield And Drilling-Rig Hydraulic Systems

Western Hydraulics India Pvt Ltd designs, manufactures, integrates, modifies, and tests open-circuit and closed-circuit hydraulic systems for oilfield and drilling-rig applications.

Closed-Circuit Hydraulic Systems:
Closed-circuit systems are suitable for reversible hydrostatic drives requiring controlled speed, torque, and direction, including top-drive applications.

Our capabilities include:

  • Variable-displacement pump and hydraulic motor integration
  • Bidirectional motor operation with speed and torque control
  • Proportional pump-displacement control
  • Charge-pressure and make-up oil circuits
  • Flushing, cooling and case-drain arrangements
  • Anti-cavitation and cross-port pressure protection
  • Hydraulic brake-release and brake-control circuits
  • Pressure and temperature monitoring
  • Safety interlocking and emergency shutdown function
  • Remote monitoring and control, where required

Open-Circuit Hydraulic Systems:
Open-circuit systems are used for operating hydraulic cylinders, motors, and auxiliary rig functions, with hydraulic oil returning to the reservoir after passing through the actuator.

Our capabilities include:

  • Variable-displacement and load-sensing pump systems
  • Pressure-compensated, power-control, and pressure-cut-off arrangements
  • LRDS-type pump controls, where applicable
  • Load-sensing main and proportional pilot manifolds
  • Logic-cartridge and proportional-cartridge control systems
  • Flow-sharing and multi-actuator control
  • Hydraulic sequencing, interlocking and remote pilot control
  • Cylinder and hydraulic motor-control circuits
  • Accumulator charging and control systems
  • Duty and standby pump arrangements
  • Pressure, flow and load monitoring
 

The final system configuration is developed according to operating pressure, flow, torque, speed, duty cycle, cooling requirements, control sequence, and application-specific safety requirements.