55 mm Pressurestat Membrane Repair Kit

55mm Pressurestat Membrane Repair Kit

This repair kit rebuilds newer Asco (Sirai) P302-6 pressurestats, restoring accurate boiler pressure switching without replacing the entire pressurestat.

COMPATIBILITY

• Fits: newer Asco (Sirai) P302-6 pressurestats

INSTALLATION

Moderate difficulty, comfortable DIYers can rebuild the pressurestat themselves, but a technician is recommended if you're not familiar with the assembly order.

PRO TIPS

• Assembly order matters: place the PTFE disk in the brass flange first, then the rubber diaphragm with pin, then the hard retaining bushing with its ridges facing down onto the diaphragm.