Upgraded 45# Steel Quality Control Dual Pilot-Operated Good Sealing Non-Return Check Valve

Upgraded 45# Steel Quality Control Dual Pilot-Operated Good Sealing Non-Return Check Valve. Pilot-operated design,stable unlocking performance,reliable two-way pressure holding. Tubular threaded installation,no extra valve block required,easy on-site assembly. High-pressure resistance up to 350 bar,45# steel body with strong impact resistance. Multiple BSPP thread specifications optional, wide compatibility with hydraulic pipelines. NBR seal for long-term oil resistance,low internal leakage,long service life.