CTEK Subsea Relief Valve
Product details
System Protection: Actively protects submerged equipment against pressure buildup from oil thermal expansion or overfill.
Versatile Application: Specifically designed for integration with compensators, hydraulic reservoirs, and ROV electrical systems.
Deep-Sea Durability: Rated for operation at depths up to 3000 meters.
Corrosion Resistance: Manufactured from high-grade AISI 304 Stainless Steel to withstand harsh marine environments.
Standard Compatibility: Serves as a direct functional equivalent to industry-standard valves from Circle Seal Controls and Generant.
Flexible Configurations: Available in various sizes (up to NPT 1") and factory presets (0.7 bar / 1.4 bar).
CTEK Subsea Relief Valve
The CTEK Vent Relief Valve is a precision-engineered safety component designed to protect submerged oil-filled systems from potentially damaging overpressure caused by thermal expansion or accidental overfilling. Essential for the integrity of compensation systems, hydraulic reservoirs, and compensated electrical housings on Remotely Operated Vehicles (ROVs), these valves ensure consistent pressure regulation in deep-sea environments.
Available with multiple connection types and pressure presets, they offer versatile protection for critical subsea infrastructure.
Operating Conditions
Ambient Temperature (Air): -20°C to +45°C.
Seawater Temperature: -4°C to +32°C.
Seawater Pressure Rating: 30 MPa.
Fluid Compatibility: Hydraulic Oil Type HLP/HVLP.
Viscosity Range: 22-68 Grade (Operating range 16-36 cSt).
Model Variants & Dimensions
Variant 1 (0.7 bar):
Connection: NPT 1/4".
Set Pressure: 0.7 bar.
Dimensions: 18.5 x 16 x 27.8 mm.Variant 2 (1.4 bar):
Connection: k1/4" (GOST 6111-52).
Set Pressure: 1.4 bar.
Dimensions: 18.5 x 16 x 27.8 mm.Variant 3 (Large Flow):
Connection: NPT 1".
Set Pressure: 0.7 bar.
Dimensions: 41.6 x 36 x 27.8 mm.
Design & Engineering Equivalents
This product is engineered to match the performance and specifications of the following international standards:
Circle Seal Controls (USA): Models 559-T1-2M-10 and 559-T1-2M-20.
Generant (USA): Model VRV-1000A-B-20.