CRANE® NOZ-CHEK® latest design iteration:
An even better choice for backflow prevention in critical service
The latest evolution of design improves upon the reliable performance of NOZ-CHEK®, and delivers value to end users through reduced maintenance over the life of the valve.
PROTECTION
CRANE® NOZ-CHEK® is a non-slam axial check valve, specifically designed for fast-reversing systems where backflow is a constant concern. It is called a non-slam check valve, as the valve closes without slamming — meaning no excess pressure spikes are created. A NOZ-CHEK® has a spring loaded, single low mass disc which facilitates a fast, dynamic response to reduction in flow. Reciprocating pump service and compressor surge protection are typical applications where the axial type check valve will outperform other valve types such as swing check.
RELIABLE OPERATION
The new CRANE® NOZ-CHEK® Non-Integrated Diffuser design, uses the same proven NOZ-CHEK® technology which customers have relied on for over 30 years to protect their equipment. Spring technology which has been independently certified to over 25 million cycles ensures long term performance, and the removal of any
requirement for a soft seal means the potential for degradation in the seat to body seal over time is removed, while at the same time increasing the base operating temperature range of the standard product.
LOW OVERALL COST
Reducing the number of components in the NOZ-CHEK® design means that fewer long-term spares will be required in event of required refurbishment or inspection. The valve can be safely disassembled and then reassembled for cleaning or inspection, without the need for a replacement seat seal . Improved CVs over older designs reduce pump and compressor burden and helps to speed up processes where fluid throughput is important.
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NOZ-CHEK® valves provide QUICK, DYNAMIC, RESPONSE TIMES and ensure low leak rates. Specifically engineered to protect critical rotating equipment in extreme environments.