In conjunction with MAC Valves, PSI Technologies have developed a number of replacement and bespoke Electro-Pneumatic (EP) and mechanical valve solutions for the UK Overground and Underground network. MAC’s patented ‘No Stick’ valve design is immune to vehicle pressure variation, so the control valves react exactly the same way at 2 bar as they do at 10 bar giving consistent reliable operation. MAC rail valves are best in class for this arduous and demanding environment. MAC have been manufacturing group standard compliant rail valves for over 40 years.
Control Bypass and Door Isolation
These lever operated valves allow rail staff to override the door in the event of an emergency. With over 8000 of these assemblies installed and running trouble free on the network, they are the main door safety valves for a number of fleets.