VERDER VERDERAIR VA 40 Instructions Manual page 8

Installation
Flange Connections
The fluid inlet and outlet ports are 1–1/2" raised face, stan-
dard 150 lb class pipe flanges. Connect 1–1/2" flanged plas-
tic pipe to the pump as follows. You will need:
D Torque wrench
D Adjustable wrench
D a 5" diameter, 1/8" thick PTFE gasket, with four
0.63" diameter holes on a 3.88" diameter bolt circle, and
a 1.75" diameter center
D four 1/2" x 3" bolts
D four 1/2" spring lockwashers
D eight 1/2" flat washers
D four 1/2" nuts
1
Lubricate threads. Torque to 14–20 N.m. Do not over-torque.
Fig. 3
8 819.4486
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 washers (E), lock-
washers (D), and nuts (F).
4. Hold the nuts with a wrench. Refer to the tightening se-
quence in Fig. 3 and torque the bolts to 14–20 N.m.
Do not over-torque.
5. Repeat for the pump inlet flange (R).
F
D
E
S
B
R
BOLT TIGHTENING SEQUENCE
3
2
A
E
C
KEY FOR FIG. 3
A Flanged Plastic Pipe
B PTFE Gasket
C Bolt
D Lockwasher
E Flat Washer
F Nut
R 1–1/2" Fluid Inlet Flange
S 1–1/2" Fluid Outlet Flange
1
1
4
04405
1
04703B