Graco 308550ZAD important safety instructions Flange Connections, Bolt Tightening Sequence

Installation

Flange Connections

The fluid inlet and outlet ports are 2” raised face, standard 150 lb class pipe flanges. Connect 2” flanged plastic pipe to the pump as follows. You will need:

DTorque wrench

DAdjustable wrench

D6” diameter, 1/8” thick PTFE gasket, with four 0.75” diameter holes on a 4.75” diameter bolt circle, and a 2.20” diameter center

DFour 5/8” x 3” bolts

DFour 5/8” spring lockwashers

DEight 5/8” flat washers

1.Place a flat washer (E) on each bolt (C). Refer to Fig. 3.

2.Align the holes in the gasket (B) and the pipe flange (A) with the holes in the pump outlet flange (S).

3.Lubricate the threads of the four bolts. Install the bolts through the holes and secure with the wash- ers (E), lockwashers (D), and nuts (F).

4.Hold the nuts with a wrench. Refer to the tighten- ing sequence in Fig. 3 and torque the bolts to 20–30 ft-lb (27–41 NSm). Do not over-torque.

D Four 5/8” nuts. 5. Repeat for the pump inlet flange (R).

BOLT TIGHTENING SEQUENCE 1

3 1

F

D

E

S 2 4

B

04405

A

E

C 1

R

KEY FOR FIG. 3

A Flanged plastic pipe

B PTFE gasket

C Bolt

D Lockwasher

E Flat washer

F Nut

R 2” fluid inlet flange

S 2” fluid outlet flange

1

Lubricate threads. Torque to 20–30 ft-lb

(27–41 NSm). Do not over-torque.

Fig. 3

04615B

308550 9