ALADCO Nu-Check 303801BSPP is a pilot-operated pneumatic check valve with an extended override button and 3/8 in BSPP inlet/outlet ports, designed to prevent backflow in control lines while allowing a manual override for venting. The body is an anodized 6061-T6 aluminum construction with Buna-N seals, rated for -30 to 150°F and up to 150 psi, featuring 3/8 in BSPP threaded ports (G). The extended override button provides accessible manual override in automated systems, making it suitable for pneumatic circuits where reliable backflow prevention and quick reset are important.
