Feritech - Model FT0594 -Non Return Valve (NRV)
The Feritech FT0594 Non-Return Valve (NRV) is our version of the very popular tool within the marine industry. The non-return valve works by allowing water to flow out the top of the liner as the corer descends through the water column and into the seabed. Then, when the barrel has fully penetrated and the corer is retrieved, the sprung loaded valve will shut preventing wash out of the sample as it is recovered back to deck. This produces a less disturbed sediment sample for higher quality results. The piston is compatible with the FT520, FT0551 and FT5500 for both Type-A and Type-B size barrels.
Feritech offers a comprehensive range of high-performance geotechnical survey systems, all designed, manufactured, and tested to the highest standards by our expert UK-based team. Many products are available ex-stock for purchase or hire, with global delivery and full technical support ensuring exceptional reliability and performance.
Here to help
Our systems are ready to operate straight out of the box and can be mobilised within hours. Every Feritech product can be customised to meet specific project requirements. If your application demands a bespoke solution, our team will be happy to assist.
- High level of sample retention
- Less disturbed sample
- Compatible with Feritech’s FT520 Gravity Corer
- Compatible with Feritech’s FT551 Vibrocorer
- Compatible with Feritech’s FT5500 Frameless Vibrocorer
- Manufactured from high grade corrosion resistant materials to prolong service life.
- Available in the following standard barrel sizes:
- Type A barrel - OD 101.6mm, sample - 84mm
- Type B barrel - OD 127mm, sample - 106mm