Installation

Flange Connections

The fluid inlet and outlet ports are 1” raised face flanges. Connect 1” flanged plastic pipe to the pump as follows. You will need:

DTorque wrench

DAdjustable wrench

DOne 4.25” diameter, 1/8” thick PTFE gasket, with four 0.62 diameter holes and a 1.15” diameter center

DFour 1/2” x 2.5” bolts

1.Place a lockwasher and a flat washer on each bolt. Refer to Fig. 3.

2.Align the holes in the gasket and the pipe flange with the holes in the pump flange.

3.Lubricate the threads of the four bolts. Install the bolts through the holes and secure with the wash- ers and nuts.

DFour 1/2” spring lockwashers

DEight 1/2” flat washers

DFour 1/2” nuts.

4.Hold the nuts with a wrench. Refer to the tighten- ing sequence in Fig. 3 and torque the bolts to

10 to 15 ft-lb (14 to 20 N-m). Do not over-torque.

F

E

S

B

A

BOLT TIGHTENING SEQUENCE

1

31

24

04405

E

KEY

D

A

Flanged plastic pipe

 

B

PTFE gasket

C 1

C

Bolt

D

Lockwasher

 

E

Flat washer

R

F

Nut

 

R

1” fluid inlet flange

 

S 1” fluid outlet flange

1

Torque to 10 to 15 ft-lb (14-20 N-m).

Do not over-torque.

 

04404B

Fig. 3

8 308443

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Graco D75, DS5, D82, D72, D85, DR2, DR5, DS2, D81 important safety instructions Flange Connections, Bolt Tightening Sequence

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