Complete Sight Glass Shutter Box Assembly
A robust flame viewing shutter box assembly adaptable to fit many makes of Boilers and Furnaces. Manufactured from steel and supplied with a clear sight glass and mounting gasket.
The shutter has to be held open via the lever to view the flame. Once dropped the shutter prevents direct heat onto the glass.
The shutter box assembly has a pitch circle diameter of 140mm and bolt holes of 11mm.
A robust flame viewing shutter box assembly adaptable to fit many makes of Boilers and Furnaces. Manufactured from steel and supplied with a clear sight glass and mounting gasket.
The shutter has to be held open via the lever to view the flame. Once dropped the shutter prevents direct heat onto the glass.
The shutter box assembly has a pitch circle diameter of 140mm and bolt holes of 11mm.
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