8
RECON 2500 Tube Leak Test Gun
OPERATION INSTRUCTIONS
The RECON 2500 Test Guns come as a set. This set is comprised of: an air injection gun and a
plugging gun. The air injection gun can be differentiated from the plugging gun because it incorporates
the valve block and air regulator.
1. Attach air supply to both guns. The RECON 2500 test guns will be operational on plant air
supplies ranging from 40 to 125 psi (2.7 to 8.6 Bar) at a minimum of 5 cfm. The maximum
test pressure of the tube is dependent on the tube ID and the air supply pressure (see
Table 1).
2. On the air injection gun, turn the adjusting nut on the air regulator counterclockwise to set
the tube testing pressure to zero.
3. Insert the air injection gun into one end of the tube to be tested and the plugging gun into
the other end. The seal should be fully into the tube and the backup washer should be
against the tube end.
4. Press the the top button for actuating the cylinder of the air injection gun, and press the
air control valve on the plugging gun and hold until the guns are rmly held in the tubes.
Release both buttons.
5. Press the the bottom button for pressurizing the tube on the air injection gun and adjust
the air regulator clockwise until the desired tube test pressure is achieved (use Table 1 for
maximum tube test pressures available).
NOTE: The air pressure regulator must be readjusted if testing different size tubes or if air
supply pressure changes.
6. Both injection gun and plugging gun operators should observe the pressure gage on their
respective guns. Any decrease in the pressure will indicate a leaking tube.
7. Press the bleed valve on the injection gun between the gage and the cylinder body to
bleed off the air pressure in the tube. After the tube test pressure has bled to zero, press
the bleed valve on both guns to release the pressure in the cylinder and relax the seals.
8. Remove the test guns and move on to the next tube. Mark each leaking tube encountered
for repair. The total operation should be completed in 5 to 10 seconds. Your actual testing
time will depend on the amount of time you choose to hold the pressure test.
9. Repeat steps 3 through 8 for each tube to be tested.
TABLE 1 – Maximum Tube Test Pressure Versus Air Supply Pressure And Tube ID
Nominal
Tube Size
Air Supply Pressure - PSI
40 60 80 100 125
Maximum Test Pressure - PSI
1-1/4” 40 60 80 100 125
1-1/2” 30 40 50 60 75
1-3/4” 20 30 40 50 60
2 15 20 25 30 35
2-1/4” 10 15 20 25 30
2-1/2” 5 10 15 20 25
