Advertisement
Check Valve (2-1/2" Socket x 3" Spigot)
Check Valve
The Pentair Water Pool and Spa® straight and 90° body
check valve is designed for use with return and intake water
flow. A clear top cover is provided for easy viewing of water
flow direction.
The 3" check valve can be used with 2-1/2" or 3" pipe. The
2-1/2" pipe slip-fits into the valve ports (see Figure 1). The 3"
pipe is connected to the valve using a 3" pipe coupler, a 45°
elbow or a 90° elbow. Note: Be sure no glue enters the
inside of the valve body past the ports. The
recommended pipe glue to use is, WELD-ON
GRAY or WELD-ON
®
790
™
CEMENT.
Check Valve Top Cover- Removal and Installation
(see Figure 6 and 7)
To remove the check valve top cover:
1. Mark the position of the check valve flapper or direction of arrow on
cover. Use a No. 2 Philips screwdriver to remove the twelve (12)
screws. Set the cover screws aside.
2. When removing the cover: Do not insert a screw driver blade between
the valve body and the top cover to pry open. If cover is stuck use a mallet or
wooden dowel and tap lightly on the side of the cover (not on screw
bosses) to loosen cover. Be careful not to drop or lose the cover o-ring.
To install the check valve top cover (see Figure 6 and 7)
1. Make sure the cover o-ring is lubricated with silicon o-ring grease and
installed on the cover flange. Mount the check valve cover on top of the
body with the flapper oriented in same position as when removed.
Align the notch (on cover) and tab (on valve body), see Figure 7).
2. Make sure the cover and valve body screw holes are aligned.
3. Install the twelve (12) cover screws. Using a No. 2 Phillips screwdriver,
torque screws sequentially to
tightening sequence shown in Figure 6. Verify that the check valve
flapper is oriented in the proper direction.
2
Align top
cover notch
with tab on
body
3
Figure 7.
®
724 CPVC,
MULTI-PURPOSE SOLVENT
36 lb*in (4.1 N*m)
. using the
1
Check Valve Flapper
Replacement Kit
(Includes items 2, & 3)
Tab (not shown)
located on body
Check Valve Parts List
I
e t
m
P
a
N
. o
N
u
1
2
7
2
2
7
3
2
7
Straight Body Check Valve
Check Valve Cover Screws (Tightening Sequence)
Flapper hinge pin
t r
C
h
e
c
k
V
a
v l
e
(
" 3
S
p
g i
t o
x
. 2
" 5
m
b
r e
0
1
1
9
Z
C
H
E
C
K
V
A
L
V
E
F
L
A
P
P
E
R
R
E
P
(
n I
c
u l
d
e
s
I
e t
m
s
2
&
) 3
1
0
7
7
Z
S
C
R
E
W
K
T I
1 (
2
S
C
R
E
W
/ S
I K
) T
0
1
1
6
Z
O
-
R
N I
G
2
2 -
4
8
B
U
N
- A
N
7
0
S
H
O
4
90° Body Check Valve
1
12
10
8
6
4
Figure 6.
Torque to: 36 lb*in (4.1 N*m)
S
o
c
k
e
) t
L
A
C
E
M
E
N
T
K
T I
R
E
A
1 (
R
E
Q
D '
)
3
5
7
9
11
2
Advertisement
