Graco 3A2578B important safety instructions Flange Connections, Installation

Flange Connections

The fluid inlet and outlet ports are 2 in. (50 mm) raised face, ANSI/DIN PN 10 flanges. Connect 2 in. (50 mm) plastic pipe flange to the pump as follows. You will need:

•Torque wrench

•Adjustable wrench

•6 in. (152 mm) diameter, 1/8 in (32 mm) thick PTFE gasket, with four 0.75 in (19 mm). diameter holes on a 4.75 in. (121 mmm) diameter bolt circle, and a 2 in. (50 mm) diameter center

•Four 5/8 in (17 mm) x 3 in (76 mm) long bolts

•Four 5/8 in.(17 mm) spring lock washers

•Eight 5/8 in. (17 mm) flat washers

•Four 5/8 in. (17 mm) nuts

1.Place a flat washer (K) on each bolt (H).

2.Align the holes in the gasket (G) and the pipe flange (F) with the holes in the pump outlet flange

(E).

3.Lubricate the threads of the four bolts. Install the bolts through the holes and secure with the washers (K), lock washers (J), and nuts (L).

4.Hold the nuts with a wrench. Refer to the tightening sequence in the figure and torque the bolts to 20 to 30 ft-lb (27 to 41 Nm). Do not overtorque.

5.Repeat for the pump inlet flange.

Installation

Figure 1

D2 in. (50 mm) fluid inlet flange

E 2 in. (50 mm) fluid outlet flange

F Plastic pipe flange

G PTFE gasket

HBolt

JLock washer

K Flat washer

L Nut

Lubricate threads. torque to 20 to 30 ft-lb (27 to 41 Nm). Do not overtorque.

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