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Main Diverter Valve Gland Nut (48063 | 248061)
The Main Diverter Valve Gland Nut Assembly (Part Nos: 48063 or associated with the full hydraulic valve block 248061) is a precision hardware sealing component engineered for the mechanical 3-way diverter valve body in the Main Combi boiler range. Positioned directly where the moving pushrod spindle exits the brass housing to engage with the electrical microswitches or actuator, this gland nut contains the internal water seals (O-rings) and internal guide bushes. It allows the metal rod to slide back and forth freely during circuit switching while maintaining a complete hydraulic barrier against the high-pressure primary water inside.
Spindle Leak Resolution: Replacing a worn gland nut eliminates the common "front-end weeping" or persistent dripping along the valve's activation spindle shaft.
Smooth Mechanical Travel: Features a precision-machined guide channel that keeps the internal pushrod centered, preventing friction-induced sticking and ensuring rapid switching between central heating and domestic hot water.
Electrical Component Protection: By forming a definitive watertight seal at the front of the valve block, it safeguards nearby electrical microswitches and wire harnesses from water damage and corrosion.
Durable Brass Threading: Manufactured from high-quality brass to resist thread stripping, thermal distortion, and chemical degradation from system inhibitors during high-temperature operations.
Compatible Models:
Main Combi 24 — 47-474-01
Main Combi 24 HE — 47-474-02
Main Combi 30HE — 47-474-03
MAIN COMBI 24
MAIN COMBI 24 HE
MAIN COMBI 30 HE
Main
A00716-04