GORMAN-RUPP PUMPS AMT 2820-98 Specifications Information And Repair Parts Manual

Specifications Information and Repair Parts Manual
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Please read and save this Repair Parts Manual. Read this manual and the General Operating Instructions carefully before attempting to assemble,
install, operate or maintain the product described. Protect yourself and others by observing all safety information. The Safety Instructions are contained
in the General Operating Instructions. Failure to comply with the safety instructions accompanying this product could result in personal injury and/or
property damage! Retain instructions for future reference. AMT reserves the right to discontinue any model or change specifications at any time without
incurring any obligation.
©2017 AMT Pump Company, A Subsidiary of The Gorman-Rupp Company, All Rights Reserved.
Periodic maintenance and inspection is required on all pumps to insure proper operation. Unit must be clear of debris and sediment. Inspect for leaks and loose bolts. Failure
to do so voids warranty.
Self-Priming Centrifugal Pedestal Pumps
High Volume Dewatering Cast Iron and Stainless Steel Models
Refer to pump manual 1808-635-00 for General Operating and Safety Instructions.

DESCRIPTION

These self-priming (to 20 ft. lift) centrifugal pumps are heavy-duty units designed for the high volume liquid transfer involving irrigation, dewatering, lawn
sprinkling, etc. . Pumps are equipped with a flapper valve (to eliminate re-priming after each use) and a clog-resistant impeller which enables the pumps
to handle semi-solids (up to 3/8" dia.) and sediment laden liquids. Handle liquids from 40º to 180º F (4º to 82º C). For use with non-flammable, non-
abrasive liquids compatible with pump component materials.
Units can be installed with direct-coupling drive or pulley drive and can be driven by electric motor or gasoline engine.
For further pump information, see Specifications, Performance and Pulley Drive Charts.

Specifications

Description Model 2820-98
Suction Inlet 1 ½" NPT
Discharge Outlet 1 ½" NPT
Shaft Diameter 3/4"
Keyway 3/16" x 3/32" x 1⅞
Dimensions (overall) 14½" L x 7⅜" W x 10" H
Weight (approximate) 33 lbs.
Basic Construction Stainless Steel
Seal
Viton elastomers, ceramic
seat, carbon head, and
stainless spring.
IMPORTANT: Find desired pump speed in accordance with the performance chart. Select driver with the proper RPM and corresponding pulley size. The chart covers both
models.

Pulley Drive Chart

Pump Speed RPM
1725
2300
2800
3450
(*) All A Section, Single Groove
2761-257-00
Model 2820-99 Model 282P-95
1 ½" NPT 1 ½" NPT
1 ½" NPT 1 ½" NPT
5/8" 3/4"
3/16" x 3/32" x 3/4" 3/16" x 3/32" x 1⅞
10½" L x 7⅜" W x 10⅛" H 14½" L x 7⅜" W x 10" H
32 lbs. 38 lbs.
Cast Iron Cast Iron
Buna-N elastomers,
ceramic seat, carbon Viton elastomers, ceramic
head, and stainless seat, carbon head, and
spring. stainless spring.
Motor Speed
1725 RPM
3450 RPM
1725 RPM
3450 RPM
1725 RPM
3450 RPM
1725 RPM
3450 RPM
1
2820-98, 2820-99, 282P-95, 2760-99, & 2761-99
Model 2760-99
2" NPT
2" NPT
3/4"
3/16" x 3/32" x 1⅞
15¾" L x 7⅜" W x 10⅞" H
44 lbs.
Cast Iron
Buna-N elastomers,
ceramic seat, carbon
head, and stainless
spring.
* Pulley Diameter Motor
3"
2 ½"
4"
3"
4"
2 ½"
6"
3"
Model 2761-99
2" NPT
2" NPT
3/4"
3/16" x 3/32" x 1⅞
15¾" L x 7⅜" W x 10-15⁄16" H
46 lbs.
Stainless Steel
Viton elastomers, ceramic
seat, carbon head, and
stainless spring.
Pump
3"
5"
3"
4 ½"
2 ½"
3"
3"
3"
1/2017