Series M pressure regulator is available with G1/8 and G1/4 ports. Its design incorporates a diaphragm and relieving so as to allow decremental adjustments as well. Microregulators are available with different regulation types: non-relieving, very sensitive self-relieving (through a light air leak) and VS (valve with fast draining). The VS version is used when a regulator should be inserted between the valve and cylinder, or capacity, without any negative influence on the exhaust.