Product Description
TT Twin-Screw Pump -
Installation, Operation & Maintenance Manual
21
hazardous liquids are being pumped or seal leakage of the pumped fluid is objectionable, your
TT pump can be equipped with double mechanical seals
– in component or cartridge design
Bearing Brackets
– Bearing bracket are round type with rigid ribs to withstand greater torsional
load. Bearing bracket are sealed off from the environment by lip seal. Bearing brackets are
isolated and lubricated to protect the bearings. The brackets are designed for seal leakage
detection, vibration sensors, pressurized flush systems, etc.
Timing Gears
– Timing gears are used to transmit power from the drive to the idler shaft and
to prevent metal contact between the meshed, rotating screws. The "timing" or placement of
the gears on the shaft prevents rotational contact of the pumping screws. This clearance
between the pumping screws relates to extended pump life and higher, average efficiency over
the life of the pump. Spur gear are used for transmission. Factory performed timing is easily
repeated with TT’s method of gear and screw synchronization (timing). Gears are oil lubricated
by means of a self-contained system and are sealed off from the environment by lip seals. The
gears are of steel construction.
Bearings
– Radial loading is handled at four locations by heavy-duty roller bearings that are
sized to handle maximum loads. The bearings are oil lubricated at gear side and either grease
or oil lubricated at motor side and sealed off from the pumped fluid by lip seals. The pump is
hydro dynamically balanced, so axial loading is eliminated.
Baseplate
The fabricated steel baseplate supports the pump, driver, and accessories in accordance with
CIRCOR standards or API-676 latest Edition requirements depending on application.
Direction of rotation
The direction of rotation is normally clockwise when viewed look at the drive end of the pump.
The direction of rotation furnished on a specific order should be verified by checking the pump
GA or outline drawing or the direction of rotation arrow affixed to the pump.
Summary of Contents for HOUTTUIN TT Twin-Screw
Page 1: ...TT Twin Screw Pump Installation Operation Maintenance...
Page 2: ......
