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Service Guide       

SER 8568-A4

8568 -A4
8568-MA
8568 Series

Alemite, LLC

167 Roweland Drive, Johnson City, Tennessee 37601

www.alemite.com

Copyright 

© 

2005 by Alemite, LLC

This document contains confidential information that is the property of Alemite, LLC

670648

and is not to be copied, used, or disclosed to others without express written permission.

Revision (7-05)

Specifications

Pump Tube

Air Motor

Max.

Material Pressure

Delivery/Minute

(Approximate)*

Material Inlet

psi

bar

gals

liters

800

56

3.4

12.9

1-1/2 " NPTF (f)

* For detailed information, refer to Figure 3

Air Motor

Model

Piston Dia. x Stroke

Air Inlet

Material Outlet

Max. Air

Pressure

Inches

Cm

Body

Adapter

Body

Adapter

psi

bar

324300-3, -4, & -5

2-7/16 x 1-5/8 6.2 x 4.1 1/4" NPSI

Not Applicable

3/8 " NPTF

Not Applicable

200

14

324300-M

1/4" BSPP (f) x 1/4" NPSI (m)

3/8" BSPT (f) x 3/8" NPTF (m)

Table 1

Medium-Pressure Stub Pump Model 8568 Series Specifications

Description

The major components of an 8568 series pump consist of an 

air-operated motor and a pump tube. The air motor connects 
directly to the double-acting reciprocating pump tube.

These medium-pressure stub pumps (4:1 ratio) are designed 

to deliver a range of light weight oils including gear lubricants. 
The pump’s bung adapter [2 " NPTF (m)] allows installation 
directly onto original containers or bulk tanks.

Each model stub pump is also designed to accept a variety 

of different length and types of extension tubes. These 
extension tubes can also be equipped with a low level cut-off 
valve. See Table 2.

The pump can also be installed remotely. In this case the 

pump threads directly to the appropriate piping hardware.

Model 8568 Series Comparison

Stub pump model 8568-A4 is equipped with air motor 

model 324300-5. Pump model 8568-MA is equipped with a 
motor that contains BSPP inlet and BSPT outlet adapters.
See Table 1.

All remaining models (with the obsolete piston) were 

manufactured with an air motor with standard connections. See 
SER 324300-5 for details.

Medium-Pressure Stub Pump

Figure 1

Air Motor Model 8568 Series

Model 8568-MA Shown

Pump Model

Piston

w/ O-Ring Seal

(Current)

w/o O-Ring Seal

(Obsolete)

8568-A4

8568-MA *

8568 Series

NOTEFigure 5 illustrates the Current and Obsolete Pistons.

* With 324300-M Air Motor (See Table 1).

Содержание 8568 Series

Страница 1: ...connects directly to the double acting reciprocating pump tube These medium pressure stub pumps 4 1 ratio are designed to deliver a range of light weight oils including gear lubricants The pump s bun...

Страница 2: ...SER 8568 A4 Medium Pressure Stub Pump Revision 7 05 2 Alemite LLC Figure 2 Medium Pressure Stub Pump Model 8568 Series Exploded View...

Страница 3: ...ght Duty 1 5 32 Long 1 320972 5 12 Ball 9 16 Dia 1 320976 9 13 Ring Wear Glass Filled Nylon 2 321316 17 14 Piston 1 321318 21 15 O Ring 15 16 ID x 1 3 16 OD 1 321615 8 16 Washer Back Up Nylon 1 324300...

Страница 4: ...f air supplied to the motor and the amount of material discharge back pressure to be overcome within the system This chart contains curves based on three different air pressures The curves relate deli...

Страница 5: ...ropriate container operate the control valve to discharge remaining pressure within the system Never point a control valve at any portion of your body or another person Accidental discharge of pressur...

Страница 6: ...IMPORTANT Should the pump contain the obsolete piston see Figure 5 discard the assembly and use the conversion kit for replacement 15 Remove Wear Rings 13 O Ring 15 and Back Up Washer 16 from Piston 1...

Страница 7: ...Rings 13 O Ring 15 and Back Up Washer 16 onto the Piston 8 Install O Ring 6 onto Valve Seat 21 9 Install O Ring 4 and O Ring 6 onto the Tube Adapter Make sure to place the larger O Ring on the upper...

Страница 8: ...to the Troubleshooting Chart for details Priming With air pressure at zero 8 Place the pump in the product to be dispensed 9 Slowly supply air pressure to the pump s motor 10 Allow the pump to cycle s...

Страница 9: ...5 Clean and inspect all parts Locate and eliminate source of foreign material 3 Replace any damaged component Product leakage past O Ring 6 and visual at bottom of Tube and Guide assembly 17 1 Initia...

Страница 10: ...SER 8568 A4 Medium Pressure Stub Pump Revision 7 05 10 Alemite LLC...

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