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

Key Features

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.