IMO CIRCOR GLH8L-400 Series, Инструкция и список запасных частей

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8
Mounting
The GLH8L-400 and GLH8L-462 series pumps are designed for horizontal foot mounting. The
pump case (001) has four feet; the two inboard feet are each drilled to receive two tie-down or
mounting bolts. The rear or outboard feet are each drilled to receive one bolt each. The double
bolting on the inboard or front end is designed to provide rigid location of the pump front end.
The length of the pump and the normal variations in temperature require that allowance be
made for thermal growth. The rigidity of the pump case (001) is usually several times that of
the sub-base or bedplate. If relative movement can’t take place between the outboard feet
and the base, thermal movement can distort the sub-base and produce pump to driver
misalignment.
End Cover
The end cover (50) is designed for RTD installation. The end cover has 2 X ½-14 NPT threaded
connection ports (supplied with plugs (14)) with ¼ inch OD x 1-1/2 inch blind hole for the RTD
probe on the outboard cover (50) for connection of two optional RTD’s.
The RTD’s (when installed) are used to read the temperature in-line with the suction idlers.
These temperatures should be relatively close to each other in normal operation. If a serious
idler rotor thrust loss occurs, the temperature difference between the two idler rotor thrust areas
will be detected.
It is recommended that the operating system should immediately be shut down if the delta
temperature between these two RTDs exceeds 25˚F to 30˚F
.
Inboard Cover
Bearing RTD
A ½” – 14 NPT threaded connection with a 5/16” diameter drill through for a temperature sensor
(RTD) probe is provided on the inboard cover (13) This RTD ( when installed) monitors the
temperature of the ball bearing (31). The temperature will vary, depending on the temperature
of the fluid pumped, the speed at which the pump is running and the suction pressure. Typically
the ball bearing temperature will run 50° F to 70° F above the fluid temperature. The maximum
temperature allowed is 250° F.
Vibration Monitoring
A ¼”-18 NPT, ¾” deep with 2” diameter machined surface spot face is provided for installation
of an optional vibration transmitter.