TFM Engineering carries a variety of extremely useful valves for SCUBA compressor and high pressure breathing air applications (all are 1/4" NPT).   They are anodised aluminium and are very light - but all are 400bar rated unless otherwise specified.  Brass versions are often available by special order, as are other special valves, high pressure regulators, etc.  Only one shipping fee is required for multiple valves.


40-301

211 Back pressure regulator/priority valve/pressure maintaining valve (adjustable) - absolutely essential for your compressor filter to work effectively, and useful for compressor overflow systems.

$107

40-302

443 Flow Fuse – shuts off the flow if it is above a certain level (ie. to shut off if a hose ruptures).

$47