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CTEK ROV Thruster Compensator

Product details

  • Active Protection: Provides positive pressure to oil-filled systems to prevent seawater ingress during submerged operations.

  • Safety Valves: Equipped with an adjustable pressure relief valve (normally set at 1.4 bar) to protect against overfilling and thermal expansion of the oil.

  • Smart Monitoring: Available with a bolt-on analogue level sensor that provides 0-100% capacity feedback for precise fluid management.

  • Scalable Design: Multiple compensators can be plumbed in parallel to increase total oil capacity while utilizing a single level sensor.

  • Robust Construction: Built from high-grade aluminum alloy, stainless steel, and structural plastic to withstand harsh subsea environments.

  • Industry Standard: Designed as an engineering equivalent to the Perry DWG-D50188-003 system.

CTEK ROV Thruster Compensator

The CTEK Compensator PSSL is a positive-pressure compensation unit designed to protect submerged oil-filled components from water ingress. By maintaining a constant positive pressure within the system, it ensures that thruster bearing housings and other subsea equipment remain filled with incompressible fluid, effectively countering the immense pressure of the ocean depths.


Robustly manufactured from aluminum alloy and structural plastic, this 1.4-liter unit features an adjustable pressure relief valve and offers optional smart level monitoring, making it a critical safeguard for deep-sea operations up to 3000 meters.


System Capabilities

  • Compensator Type: Positive-Pressure Closed-System

  • Total Fluid Volume: 1.4 Liters

  • Compensation Pressure Rating: 0.14 Mpa

  • Depth Rating: < 3000 meters

  • Mounting: Flanged rigid mounting

  • Connector: 1x MCBH8M


Physical & Environmental

  • Dimensions: 400 x 200 x 298 mm

  • Dry Weight (Max): 8 kg

  • Ambient Air Temp (Startup): -20°C to +45°C

  • Seawater Temp (Operation): -4°C to +35°C

  • Seawater Pressure Rating: 30 Mpa


Fluid Requirements

  • Hydraulic Oil Type: HLP/HVLP

  • Viscosity Grade: VG22, VG32

  • Operating Viscosity Range: 16-36 cSt


Sensor Specifications & Options

  • Sensor Model: TL-SV3-A11 Linear Position Transducer

  • Measurement Principle: Magnetic position sensing

  • Output Signal: 4-20 mA Current Loop

  • Measuring Range: 150 mm

  • Accuracy: ±0.1 mm

  • Housing Material: AISI 304 Stainless Steel

  • Nominal Operating Pressure: 35 Mpa

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