Thrush TV2g In-Line Centrifugal Pumps User Manual download pdf

OPERATING AND MAINTENANCE INFORMATION

FOR TV2g IN-LINE CENTRIFUGAL PUMP

INSTALLATION

LOCATION

The pump should be located as close to the liquid source as possible so that the suction line can

be short and direct. It should be located in a clean, open area, where it is easily accessible for

inspection, lubrication and repair. Pumps installed in dark, dirty areas or in cramped locations are

often neglected which can result in premature failure of both the pump and driver.

Adequate provisions should be made for electrical wiring to the pump motor. A switch and

overload protection should be installed near the pump unless it is impractical. The flexible

electrical conduit should be connected to the motor in such a way as to preclude the possibility of

moisture entering the conduit or the motor and causing short circuits.

MOUNTING

Thrush In-line pumps conserve floor space, simplify piping, and can be serviced without

disconnecting piping. They are designed to be installed in either the vertical or horizontal

position. The proper installation of these pumps is to install them as “a part of the piping”. The

pumps must be free to “travel” with the expansion and contraction of the piping. In-line

installation eliminates the problems normally encountered in aligning piping to a base mounted

unit. SUPPORT OF THE TV2g SERIES PUMPS SHOULD ALWAYS BE CONNECTED TO THE

PIPING RATHER THAN TO THE PUMP CASING. (See Figure 2). The line-mounted feature

eliminates the need for installing flexible pipe connectors at either the pump suction or discharge.

Isolating valves should be installed at both the pump suction and discharge to permit servicing of

the pump without draining the entire system. Make certain the space above the pump is sufficient

to give clearance for lifting the pump assembly from the casing. Also, the space around the pump

should be large enough for general accessibility and ventilation. The same criteria and formula

for selecting piping supports are used with the additional consideration that the weight of the

pump is concentrated at one point in the piping.

1 2 3 4 5 6

OPERATING AND MAINTENANCE INFORMATION FOR TV2g IN-LINE CENTRIFUGAL PUMP INSTALLATION LOCATION The pump should be located as close to the liquid

Page 2

PIPING The piping practices followed will directly affect the efficiency and power consumption of the pump. Pay particular attention to the see

OPERATION CAUTION: Centrifugal pumps should never be started or run dry. Operating a pump dry will cause scoring of the mechanical seals, result

VACUUM PRIMING Vacuum priming consists of removing air from the pump casing and suction piping and drawing liquid into them by means of a vacuum-c

Page 5

NOTE: If replacing the mechanical seal only (21 & 22), slide seal assembly off the shaft. Remove snap ring (20) at the spring end. Remove sp

Page 6

6. Install the three pipe plugs (31) in the pump casing. 7. Replace all relief, cooling, flushing or drain lines. 8. Read carefully the sectio

No comments

Thrush TV2g In-Line Centrifugal Pumps User Manual