Check Valve Static Backup Ring 300735 Good Price Waterjet Parts

The Check Valve Static Backup Ring 300735 is a precision-engineered support component used in ultra-high-pressure Waterjet Intensifier Pump check valve assemblies. Its main function is to support and protect static seals or O-rings from extrusion and deformation under extreme hydraulic pressure—ensuring long-term, leak-free performance and system reliability up to 60,000 psi (4,100 bar).

Manufactured from high-strength PTFE (Teflon) or reinforced polymer, the 300735 backup ring provides exceptional pressure resistance, chemical stability, and dimensional precision. It is installed behind a static O-ring within the check valve body or manifold port, creating a stable barrier that prevents seal damage and maintains consistent sealing force throughout pressure cycles.

The Check Valve Static Backup Ring 300735 is fully compatible with major waterjet brands, including KMT, FLOW, OMAX, WSI, and BFT, and is commonly used alongside the Static Seal 300733 and Check Valve Body 300732 in high-pressure inlet and outlet valve assemblies.