Graco 308550ZAC Septic System User Manual


 
308550 9
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:
D Torque wrench
D Adjustable wrench
D 6” 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
D Four 5/8” x 3” bolts
D Four 5/8” spring lockwashers
D Eight 5/8” flat washers
D Four 5/8” nuts.
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.
5. Repeat for the pump inlet flange (R).
04405
Fig. 3
1
F
E
S
B
A
E
D
C
R
BOLT TIGHTENING SEQUENCE
1
Lubricate threads. Torque to 20–30 ft-lb
(27–41 NSm). Do not over-torque.
1
2
3
4
KEY FOR FIG. 3
A Flanged plastic pipe
B PTFE gasket
C Bolt
D Lockwasher
E Flat washer
FNut
R 2” fluid inlet flange
S 2” fluid outlet flange
1
04615B