<https://www.acscompressors.co.uk/product/tecno-fun-blocking-valve/#product>
<http://schema.org/description>
"Compact range of function fittings with Technopolymer body. Modular design means that it is easy to join together multiple logic functions without the need for pipes.\nFittings and bodies must be ordered seperately.\nThe blocking valve is designed to maintain the downstream pressure in the event of a supply failure. Blocking valves can be unidirectional or bidirectional. In the unidirectional version\n the air flow is free in one direction and requires signal at port 12 to flow in the other direction. The bidirectional version requires a signal at port 12 to allow flow in either direction.\nAvailable Inline or 90 degree \nDATASHEET\n\nTechnical Notes\n\nPilot Connection:\nM5\n\n\n Max inlet pressure:\n10 bar\n\n\n  Flow rate:\n285 NI/min (6 bar with ΔP=1 bar)"
<https://www.acscompressors.co.uk/product/tecno-fun-blocking-valve/>