CMA 1/4 x 3/8" Check Valve musica-parts/musica-boiler the Divina Junior uses a

the Divina Junior uses a different heat exchanger

A strap wrench (the kind used for oil filters) makes removing a stuck flange much easier than pliers or channel locks

1/4" male BSP x 1/4" male BSP

6mm diameter

CMA 1/4 x 3/8" Check Valve musica-parts/musica-boiler the Divina Junior uses aCMA 1 4 x 3 8" Check Valve This check valve, made of low lead content brass (CW510L OT57), releases at 12 bar, water flows in toward the internal gasket. It's now fairly rare, since CMA has moved to three way combination expansion valve check valve assemblies. A less common 3 8" x 3 8" version is also available (AS_232). SPECIFICATIONS Material: Low lead brass (CW510L OT57) Pressure Range: Releases at 12 bar COMPATIBILITY Fits: CMA machines using this