GORMAN-RUPP PUMPS Super T4A71S-B Скачать руководство пользователя страница 10

OM-05350

SUPER T SERIES

PAGE B - 3

INSTALLATION

ches (267 mm)

 must be maintained to permit re­

moval of the cover.

SUCTION AND DISCHARGE PIPING

Pump performance is adversely effected by in­
creased suction lift, discharge elevation, and fric­
tion losses. See the performance curve and oper­
ating range shown on Page E‐1 to be sure your
overall application allows pump to operate within
the safe operation range.

Materials

Either pipe or hose maybe used for suction and
discharge lines; however, the materials must be
compatible with the liquid being pumped. If hose is
used in suction lines, it must be the rigid‐wall, rein­
forced type to prevent collapse under suction. Us­
ing piping couplings in suction lines is not recom­
mended.

Line Configuration

Keep suction and discharge lines as straight as
possible to minimize friction losses. Make mini­
mum use of elbows and fittings, which substan­
tially increase friction loss. If elbows are necessary,
use the long‐radius type to minimize friction loss.

Connections to Pump

Before tightening a connecting flange, align it ex­
actly with the pump port. Never pull a pipe line into
place by tightening the flange bolts and/or cou­
plings.

Lines near the pump must be independently sup­
ported to avoid strain on the pump which could
cause excessive vibration, decreased bearing life,
and increased shaft and seal wear. If hose‐type
lines are used, they should have adequate support
to secure them when filled with liquid and under
pressure.

Gauges

Most pumps are drilled and tapped for installing
discharge pressure and vacuum suction gauges. If

these gauges are desired for pumps that are not
tapped, drill and tap the suction and discharge
lines not less than 18 inches (457,2 mm) from the
suction and discharge ports and install the lines.
Installation closer to the pump may result in erratic
readings.

SUCTION LINES

To avoid air pockets which could affect pump prim­
ing, the suction line must be as short and direct as
possible. When operation involves a suction lift, the
line must always slope upward to the pump from
the source of the liquid being pumped; if the line
slopes down to the pump at any point along the
suction run, air pockets will be created.

Fittings

Suction lines should be the same size as the pump
inlet. If reducers are used in suction lines, they
should be the eccentric type, and should be in­
stalled with the flat part of the reducers uppermost
to avoid creating air pockets. Valves are not nor­
mally used in suction lines, but if a valve is used,
install it with the stem horizontal to avoid air pock­
ets.

Strainers

If a strainer is furnished with the pump, be certain
to use it; any spherical solids which pass through a
strainer furnished with the pump will also pass
through the pump itself.

If a strainer is not furnished with the pump, but is
installed by the pump user, make certain that the
total area of the openings in the strainer is at least
three or four times the cross section of the suction
line, and that the openings will not permit passage
of solids larger than the solids handling capability
of the pump.

This pump is designed to handle up to 3‐inch (76,2
mm) diameter spherical solids.

Sealing

Since even a slight leak will affect priming, head,
and capacity, especially when operating with a
high suction lift, all connections in the suction line
should be sealed with pipe dope to ensure an air­

Содержание Super T4A71S-B

Страница 1: ...ly 11 2002 Rev J 06 20 19 GORMAN RUPP PUMPS www grpumps com 2002 Gorman Rupp Pumps Printed in U S A INSTALLATION OPERATION AND MAINTENANCE MANUAL WITH PARTS LIST SUPER T SERIES PUMPS MODELS T4A71S B I...

Страница 2: ...rial number and e mail address required RECORD YOUR PUMP MODEL AND SERIAL NUMBER Please record your pump model and serial number in the spaces provided below Your Gorman Rupp distributor needs this in...

Страница 3: ...tion Line Positioning PAGE B 4 DISCHARGE LINES PAGE B 4 Siphoning PAGE B 4 Valves PAGE B 4 Bypass Lines PAGE B 5 AUTOMATIC AIR RELEASE VALVE PAGE B 6 Air Release Valve Installation PAGE B 6 ALIGNMENT...

Страница 4: ...al PAGE E 7 Rotating Assembly Removal PAGE E 7 Impeller Removal PAGE E 8 Seal Removal PAGE E 8 Shaft and Bearing Removal and Disassembly PAGE E 8 Shaft and Bearing Reassembly and Installation PAGE E 9...

Страница 5: ...y P O Box 1217 Mansfield Ohio 44901 1217 Phone 419 755 1011 or Gorman Rupp of Canada Limited 70 Burwell Road St Thomas Ontario N5P 3R7 Phone 519 631 2870 For information or technical assistance on the...

Страница 6: ...arge valves 6 Vent the pump slowly and cau tiously 7 Drain the pump This pump is designed to handle liquids containing large entrained solids or slurries Do not attempt to pump vola tile corrosive or...

Страница 7: ...nent only as high as necessary and keep personnel away from suspended objects Do not attempt to disengage any part of an overheated pump unit Vapor pres sure within the pump casing can eject these par...

Страница 8: ...the liquid is supplied to the pump under pressure some of the information such as mounting line configuration and priming must be tailored to the specific application Since the pressure supplied to th...

Страница 9: ...contact your Gorman Rupp distributor or the factory to deter mine the repair or updating policy Do not put the pump into service until appropriate action has been taken POSITIONING PUMP Lifting Death...

Страница 10: ...gauges are desired for pumps that are not tapped drill and tap the suction and discharge lines not less than 18 inches 457 2 mm from the suction and discharge ports and install the lines Installation...

Страница 11: ...a distance 1 1 2 times the diameter of the suction pipe The baffle will allow entrained air to escape from the liquid before it is drawn into the suction inlet If two suction lines are installed in a...

Страница 12: ...is recommended that the by pass line be run back to the wet well and located 6 inches below the water level or cut off point of the low level pump In some installations this bypass line may be termina...

Страница 13: ...ng the plug to prevent injury to per sonnel from hot liquid AUTOMATIC AIR RELEASE VALVE When properly installed a Gorman Rupp Auto matic Air Release Valve will permit air to escape through the bypass...

Страница 14: ...ys tem do not direct bleeder lines to a common mani fold pipe Contact your Gorman Rupp distributor or the Gorman Rupp Company for information about installation of an Automatic Air Release Valve for y...

Страница 15: ...the same distance apart at all points see Figure 5 Figure 5 Aligning Non Spider Type Couplings Check parallel adjustment by laying a straightedge across both coupling rims at the top bottom and side W...

Страница 16: ...drive belts check the tension after 5 20 and 50 hours of operation and re tension as re quired see the following procedure for measuring belt tension Thereafter check and re tension if re quired month...

Страница 17: ...the seal assembly Add liquid to the pump casing when 1 The pump is being put into service for the first time 2 The pump has not been used for a consider able length of time 3 The liquid in the pump ca...

Страница 18: ...pressure gauge or by a quieter operation The pump may not prime imme diately because the suction line must first fill with liquid If the pump fails to prime within five minutes stop it and check the s...

Страница 19: ...g pressure shown on the pump performance curve Pump Vacuum Check With the pump inoperative install a vacuum gauge in the system using pipe dope on the threads Block the suction line and start the pump...

Страница 20: ...res because of heat generated by friction Temperatures up to 160 F 71 C are considered normal for bearings and they can operate safely to at least 180 F 82 C Checking bearing temperatures by hand is i...

Страница 21: ...r gasket Not enough liquid in casing Add liquid to casing See PRIMING Suction check valve contaminated or damaged Clean or replace check valve Suction check valve or foot valve clogged or binding Clea...

Страница 22: ...eck valve or foot valve clogged or binding Clean valve Suction lift or discharge head too high Check piping installation and install bypass line if needed See INSTAL LATION Impeller clogged or damaged...

Страница 23: ...tely the same duty cycle the part can be checked and replaced before failure occurs reducing unscheduled down time For new applications a first inspection of wearing parts at 250 hours will give insig...

Страница 24: ...sea level with minimum suction lift Since pump installations are seldom identical your performance may be dif ferent due to such factors as viscosity specific gravity elevation temperature and impell...

Страница 25: ...OM 05350 SUPER T SERIES MAINTENANCE REPAIR PAGE E 2 ILLUSTRATION PARTSPAGE Figure 1 Pump Model T4A71S B Including F FM...

Страница 26: ...004 11010 1 31 SQUARE HEAD BOLT A1014 15991 2 32 CLAMP BAR SCREW 31912 009 15000 1 33 FILL COVER ASSY 42111 344 1 WARNING PLATE 38816 097 13990 1 DRIVE SCREW BM 04 03 17000 2 COVER GASKET 50G 19210 1...

Страница 27: ...OM 05350 SUPER T SERIES MAINTENANCE REPAIR PAGE E 4 ILLUSTRATION Figure 2 Repair Rotating Assembly...

Страница 28: ...RAIN PLUG P04 15079 1 25A SEAL CVTY DRAIN PLUG P04 15079 1 26 SHAFT SLEEVE O RING 25154 022 REF 27 IMP ADJ SHIM SET 37J 17090 REF 28 PIPE PLUG PC20 10009 1 29 O RING 25152 273 1 30 O RING S1674 1 31 S...

Страница 29: ...and removing the back cover assembly If major repair is required the piping and or power source must be disconnected The following instructions assume complete disassem bly is required Before attempt...

Страница 30: ...ck cover O rings 8A and 12A and replace them if damaged or worn Suction Check Valve Removal Figure 1 If the check valve assembly 28 is to be serviced remove the check valve pin 29 reach through the ba...

Страница 31: ...the as sem bly Remove the bearing housing O ring 9 Impeller Removal Figure 2 With the rotating assembly removed from the pump casing unscrew the impeller from the shaft Use caution when unscrewing the...

Страница 32: ...from excessive heat sparks and flame Read and follow all precautions printed on solvent contain ers Clean the bearings thoroughly in fresh cleaning solvent Dry the bearings with filtered compressed a...

Страница 33: ...d sleeve and a press to reposition the bearings against the shaft shoulders If heating the bearings is not practical use a suit ably sized sleeve and an arbor or hydraulic press to install the bearing...

Страница 34: ...ould result in prema ture failure To ease installation of the seal lubricate the shaft sleeve O ring and the external stationary seat O ring with a very small amount of light lubricating oil See Figur...

Страница 35: ...FULLY SEATED IN SEAL PLATE BORE SHEAR RING SHEARED Figure 7 Seal Fully Installed As the stationary seat becomes fully seated the seal spring compresses and the shaft sleeve will break the nylon shear...

Страница 36: ...the slightest amount of dirt on the threads can cause the impeller to seize to the shaft making future removal difficult or impossible without damage to the im peller or shaft Install the same thickne...

Страница 37: ...ndexing the collars one det ent on the adjusting screws represents approxi mately 005 inch 0 13 mm of wear plate clear ance The recommended clearance between the wear plate and the impeller is 010 to...

Страница 38: ...OPERATION It is recommended that the pressure relief valve as sembly be replaced at each overhaul or any time the pump overheats and activates the valve Never replace this valve with a substitute whic...

Страница 39: ...must be posi tioned horizontally to provide proper drainage Under normal conditions drain the bearing hous ing once each year and refill with clean oil Change the oil more frequently if the pump is op...

Страница 40: ...For Warranty Information Please Visit www grpumps com warranty or call U S 419 755 1280 Canada 519 631 2870 International 1 419 755 1352 GORMAN RUPP PUMPS...

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