Man Hours 1
Special Instructions:
1. Check trap operation under steam pressure.
2. Remove and replace faulty traps or trap elements.
Items to Check & Initial Completion:
1. Thermostatic traps. (Bellows or diaphragm type)
a.___ Remove cap or bonnet.
b.___ Clean interior of trap, valve, and seat.
c.___ Inspect bellows and diaphragm and note by sound whether it contains
liquid charge.
d.___ Replace bellows or diaphragm as necessary.
e.___ If valve seat is cut, replace seat.
2. Float and/or thermostatic traps.
a.___ Remove bonnet.
b.___ Inspect linkage and float operation for leakage, defective operation or
deterioration.
c.___ Examine, clean, and check operation of bellows as in 1 above.
3. Inverted bucket trap.
a.___ Remove bonnet
b.___ Clean interior or trap.
c.___ Inspect valve linkage mechanism and seating of valve.
d.___ Examine condition of bucket.
e.___ Examine vent or face, inlet and outlet for evidence of corrosion.
4. Impulse trap.
a.___ Remove bonnet
b.___ Inspect valve disc, inlet valve, outlet outface.
c.___ See that fulcrum point is free of dirt.
d.___ Clean body of trap.
Tools & Materials:
1. Standard Tool Kit
Plus Pipe wrenches to 24"
Tubing cutters
Flaring tool
Small acetylene outfit
Packing tool kit and packing
3/4" socket set
Crescent wrenches to 14"
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