Dura-Seal 4700

The Dura-Seal 4700, with a 4” port size, is our most versatile, all-purpose pump with industry leading flow volume of up to 660 gallons per minute (2.50 m3/minute) when equipped with our progressive helical steel gears. This pumps premium components include: high performance elastomeric and Viton® lip seals, high load carrying bearings, NEW aluminum-bronze bushings and gears all ‘perfectly balanced’ on the industry’s largest diameter nitrided shaft. Because of the balanced configuration, this pump performs more efficiently and lasts longer.

Pump Life

Flow Volume

Leak Resistance

Ease of Repair

 
Standard
Options
Drive Configuration
Drive on Bottom
Drive on Top
Port Configuration
180 degree
90 Degree
Housing
Ductile Iron
Nitrided
End Plates
Ductile Iron
Wear Plates
Hardened Steel
Polymer
Gears
Buna-N Nitrile
Helical Steel
Helical Delrin
Helical Stainless Steel
Bushings
Bronze
BEarings
High Load Capacity
Packing
N/A
N/A
Lip Seals
Viton®
PTFE
Mechanical Seal
N/A
N/A
Shafts
1 3/8" Nitrided Steel
1 3/8" Stainless Steel
Operating Criteria
Buna-N Rubber Gears
Progressive Helical Steel Gears
Max. Operating Temperature
70°C
160°C
Max. Rotation Speed
500 RPM
750 RPM
Max. Working Pressure
125 PSI
150 PSI
Dura-Seal 4700 Pump Curve
Ref #
Part Number
Description
Qty
1
4303
Centre Case
1
2
4705HCG
Helical Steel Drive Gear Only (no shaft)
1
3
4704HCG
Helical Steel Idler Gear Only (no shaft)
1
2, 3
4704G
Buna-N Nitrile Gear Only (no shaft)
2
4
4701A
1 3/8” Nitrided Idler Shaft
1
5
4702A
1 3/8” Nitrided Drive Shaft
1
6
4304K
Gear Key
2
7
3307HWP
Hardened Wear Plate
2
8
3306
Pump Gasket
10
9
3725
Snap Ring for Shaft
3
10
4721
Front Plate
1
11
4727
Drive Bolt-On End Cap
1
12
4725V
Viton Lip Seal
6
13
4716
Drive seal Housing
1
14
3428
Drive End Cap Lock Ring
1
15
4726
Main Drive Bearing
1
16
3316
Grease Fitting
5
17
4726
Main Drive Bearing (Lock Nut Removed)
1
Ref #
Part Number
Description
Qty
18
3647
Seal Housing Viton O-Ring
2
19
3315H
Dowel Pin
12
20
3729
Socket Bolt
24
21
4734
Small Bolt-on End Cap
3
22
4751
Roller Bearing
3
23
3632
Snap Ring for Small Bolt-On End Cap
3
24
3648
End Plug Viton O-Ring
3
25
3608
Bronze Threaded End Plug
3
26
3730
End Cap Viton O-Ring
3
27
3314XL
Hex Bolt
24
28
3315H
See Ref #19
NA
29
4713
Bronze Seal Spacer
3
30
4713D
Main Drive Bronze Seal Spacer
1
31
4722
Back Plate
1
32
3318
Drain Plug
2
33
4745V
Metal Encased Viton Lip Seal
5
 
4727KIT
Large Bolt-on End Cap Kit (Complete)
SK4727
Seal and Bearing Kit for Large Bolt-on End Cap
4734KIT
Small Bolt-on End Cap Kit (Complete)
SK4734
Seal Bearing Kit for Small Bolt-on End Cap
SB4700
seal and Bearing Kit for Large and Small Bolt-on End Caps

Any 3 digit part numbers need to have the port size of the pump (2" or 3") added to the front of the part number.
(i.e. part number is 3303 for Centre case for the 3" pump)

Assembly Video

Disassembly Video

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