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With an operating pressure capability of up to 700 bar, the FH700 is particularly well suited for modern subsea installations, hydraulic power units, and critical offshore systems.
The filter housing is an in line design manufactured from 316L stainless steel and developed by Filtrec, a well established manufacturer of hydraulic filtration solutions for demanding industrial, offshore, and marine environments.
Designed for extreme environments and high operating pressure
The FH700 is manufactured from 316L stainless steel, providing high mechanical strength and excellent corrosion resistance in seawater and aggressive environments. This makes the filter housing suitable for both subsea installations and topside offshore applications where long service life and stable performance are essential.
The robust construction allows the FH700 to operate reliably in systems subject to continuous load, high pressure fluctuations, and limited access for inspection and maintenance.
Optimised sealing with conical connection
The filter housing is designed with a conical connection between the filter head and the filter body. This solution ensures a precise and reliable seal even at maximum operating pressure. The conical design significantly reduces the risk of leakage and contributes to improved system integrity in critical hydraulic systems.
For applications where even minor leakage can have serious consequences, this design feature represents a key technical advantage.
Secure NPTF inlet and outlet connections
The FH700 is supplied with NPTF inlet and outlet connections, National Pipe Tapered Fuel. Unlike conventional NPT threads, NPTF provides a metal to metal seal that does not require additional sealing compounds. This ensures safer installation, reduces the risk of assembly errors, and increases overall reliability in high pressure systems.
NPTF connections are widely preferred in applications where leak free performance and repeatable installation are essential.
The FH700 is a high-pressure hydraulic filter housing developed for use in some of the most demanding operating environments within subsea, offshore, and land-based high-pressure systems. The product is designed for applications with extremely high operating pressures, where reliability, material quality, and safe handling are critical.
Short version
- Developed for high pressure hydraulic systems with operating pressures up to 700 bar, specifically designed for demanding subsea and offshore applications where reliability is critical
- Manufactured from 316L stainless steel to provide maximum corrosion resistance and long service life in marine, subsea, and aggressive operating environments
- Conical connection between the filter head and filter housing combined with NPTF inlet and outlet connections ensures secure metal to metal sealing without the need for additional sealants
FH700 hydraulic filter housing for high-pressure applications
Hydraulic filters from Filtrec
ESD Filters
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Integrated safety feature for safer maintenance
To enhance safety during service and filter replacement, the FH700 is equipped with an integrated venting feature in the filter housing. This allows residual pressure to be safely released before opening the filter, significantly reducing the risk of accidents during maintenance operations.
This function is particularly important in offshore and subsea environments, where high pressure levels combined with strict safety requirements demand controlled and predictable maintenance procedures.
Efficient filtration for sensitive hydraulic systems
The FH700 is designed to provide efficient filtration of hydraulic oil and other technical fluids in high pressure systems. The filter housing helps maintain fluid cleanliness and protects sensitive components such as valves, actuators, and control systems from particulate contamination and wear.
Consistent filtration performance contributes to extended equipment lifetime, improved system reliability, and reduced risk of unplanned downtime.
Typical subsea and offshore applications
The FH700 is especially well suited for advanced subsea applications, including:
- Remote Operated Vehicles ROV
- Subsea control modules
- Subsea chemical storage systems
In addition, the filter housing is commonly used in high pressure hydraulic power units, lubrication systems, and hydraulic actuators within the offshore industry.
