Testing Procedures
Installation of the FX Tester at the Impact Valve
14
Figure 5. Installing Snap Tap at shear valve
Installation of the FX Tester at the Impact Valve
1.
Carefully bleed
any residual pressure present in the system, catching the fluid discharged in a suitable
container. The test plug in the shear valve can be used for this purpose
CAUTION! Use a suitable container to receive product throughout this procedure. Plastic contain-
ers may store static electricity which could discharge, causing severe personal injury, fire and/or
explosion. Use only approved metal type containers. Use adequate absorbents to catch any spill-
age and avoid ground contamination.
2.
Install a Snap-Tap connector into the shear valve port.
A 3/8-inch to 1/4-inch reducer may be necessary depending on the size of the test port in the im-
pact valve. This reducer is not called out in the parts list.
Loss of product as well as introduction of air into the system can be minimized by closing the
emergency valve previous to removing the plug from the test port. Reopen the valve after install-
ing the FX Tester.
Check for any leakage of product around any of the fittings on the dispenser impact valve.
The simulated leak must be created at a height between the solenoid valve and the impact valve.
DO NOT attempt to perform a leak test above the solenoid valve. Properly installed leak detec-
tors may not react to leaks above solenoid valves that are normally inside dispensers - some-
times several feet above island level. See Figure 6.
LINE
PRESSURE
30
30
2
0
20
1010
10
0
4
0
5
0
60
B
L
A
C
K
ORANGE
VENT
LEAK
TEST
PRESSURE
RELIEF
SELECTOR VALVE
PUMP/LINE
PRESSURE
LEAK RATE
FLOW METER
VALVE
DO NOT OVER
TIGHTEN VALVE
GPH
25
20
15
10
10
15
20
5
1
0
0
1
5
GPH
G
A
S
O
L
I
N
E
D
I
E
S
E
L
FX Tester
014-605
Fitting
Black
Hose
Orange
Hose
Shear Valve
G
A
S
NOTE
