3/8" M x 3/8" M BSP No Return Valve appia-parts/appia-one-group-steam-water-valve not this one

not this one

3/8" female BSP connections

certified and pressure-set to 1

A moderate DIY job or technician service — involves draining the boiler and disconnecting the valve from the steam line

and into the top chamber holding the ground coffee

3/8" M x 3/8" M BSP No Return Valve appia-parts/appia-one-group-steam-water-valve not this one3 8" BSP No Return (Check) Valve An in line check valve, 3 8" male BSP on both ends, installed on the outward flow side of a rotary vane pump to stop water from draining back through the pump when the machine is off. This is a required part on some installations, including La Marzocco (Marzocco part #L032 P. 01). SPECIFICATIONS 3 8" male BSP x 3 8" male BSP One way check valve, in line installation COMPATIBILITY Fits: La Marzocco installations