05-08-2011, 09:04 AM
Gus, the pointy bit (pointing down in your photo) is the mounting pin, so it requires a hole to be drilled in the boiler at the mounting location. By simply flipping it over, it can be used on either side of the loco. A top-mounted check valve can have either one or two input pipes. If there’s only one, it’s usually from a feedwater heater, and depending on the heater type, could be on either the fireman’s or engineer’s side of the loco. Dual feed top-mounted check valves usually utilise the input on the fireman’s side for the heater output and that on the opposite side for cold water from an injector. There are also top-mounted check valves with both inputs on the engineer’s side. These are usually used when the loco is equipped with a Coffin fwh, as its output is normally on the engineer’s side, the opposite of Elesco and Worthington heaters.
If the attached pipe is too short, the easiest way to lengthen it is to remove it completely, then drill the valve’s input end to accept a suitably-sized wire. Soldering the parts together is the best option, but ca or epoxy will also work if the hole is deep enough.
Wayne
If the attached pipe is too short, the easiest way to lengthen it is to remove it completely, then drill the valve’s input end to accept a suitably-sized wire. Soldering the parts together is the best option, but ca or epoxy will also work if the hole is deep enough.
Wayne