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The function of a fusible plug or soft plug is to relieve exceeded pressure inside the vessel allowing it to escape to the fire box extinguishing the fire and lowering internal pressure. The boilers I've owned have had ASME stamps on the plug and are required to be replaced every two years. The inside is not to be refilled if ruptured. The lead tin alloy is designed to melt between 440 and 450 degrees Fahrenheit. Cost on a 3/8 npt is around $80.00 Sellar industries manufactures them in lots so keep a spare ! There are two kinds a standard plug that is screwed into a flue (the water is exposed to the stamped side which its screwed into) or the fireside type (this one the stamped side is exposed to the fire box). I've used these on a flue-less boiler. It was a look out made in Tenn. that had inspection dates beginning 1858 1860 1906 1908, the dome stamp was 1 8 2 8 .in 9012 she was 184 years young and would have passed commercially @ 289 psi. Inspector gave it 125 psi for historical boiler use. This is a 100 psi vessel.
thanks for stopping by
Armand Stiedemann
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What is a fusible plug?
A fusible plug is a metal cylinder that has been threaded with a hole drilled throughout it. The plugs can be found in a variety of metals. Heated metal is used to seal the hole.
How does a rupture disk differ from a fusible plug?
A rupture disk (disc) is a pressure relief device that reliefs pressure when the pressure inside the protected equipment exceeds the set pressure. A fusible plug reliefs pressure when the plug is weakened due to high temperature.
What is the location of fusible plug is small boiler?
It is located above the furnace to prevent it from accident.
What is the location of fusible plug in small boilers?
It is located above the furnace to prevent it from accident.
Que funcion tiene el fusible auto shutdown?
What function has the auto shutdown fuse?
Where is the Cooling fan fusible link on a 1989 corvette?
the cooling fan fusible link comes off the battery cable then goes down to a plug that turns up towards the fan relay and also the alternator.
Where is glow plug fuse in engine department?
Glow plugs don't necessarily have a fuse. They do have fusible links though. That is a wire with a smaller gauge wire in line that will burn should a short occur. On a ford they are usually near the glow plug controller. However all the glow plug wires on idi fords are made of the fusible link wire so they could realistically burn in 2 anywhere.
Where are the fusible links?
what are fusible links
Where is the glow plug fuse on a ford transit 350?
Yes the glow plug fuse is the R2 relay in the fuse box, there is a fusible link as well that is the thick red one coming out the front of the fuse box
What is the function of a Plug?
To produce a spark.
Replacing a fusible link on a 77 dodge 360 van does the part that's in the plug just pull out?
If the fusible link itself comes apart, it's faulty and needs replacing, preferably with a new fusible link of the same size. Fusible links are a kind of permanent fuse, so it needs to be there and it needs to be the right one. If a new one cannot be obtained from an auto parts store, a Dodge dealer should have it. Install the new one as per its directions.
Is there a fusible link on a 1994 Ford F-250 ac clutch you get no power at all to wiring on clutch?
try testing the a/c switch, this is a common problem.also i have had the wiring plug replaced where the wires actually plug into compressor. had power everywhere except plug was faulty
