The CVS Type 1301F and 1301G Regulator is a self-operated, high-pressure regulator. It is used where high pressure gas must be reduced for use as pilot supply pressure in pilot-operated regulators, or as loading pressure in pressure-loaded regulators. This regulator is also suitable for other applications as high-pressure reducing regulators for various gases.

The CVS Type 1301F is available in three spring ranges to provide outlet pressures to 225 psig (15.5 bar). CVS Type 1301G provides outlet pressures to 500 psig (34.5 bar) in one spring range. Inlet pressures can range up to 6000 psig (411 bar).