Suction Screen; Air Vent And Water Drain; Pressure Relief Valve; Relief Valve Setting Pressure - Task Force Tips Ball Intake Valve Instructions For Installation, Safe Operation And Maintenance

5.5 SUCTION SCREEN

This device may be equipped with a suction
screen to catch debris larger than 3/8" diameter
in the waterway. See chart to determine
additional loss caused by the screen. To add
or replace a suction screen, order TFT part
#A1410-KIT for the 4.5" waterway, and TFT part
#A1411-KIT for the 5.0" waterway.

6.0 AIR VENT AND WATER DRAIN

The BIV and Jumbo BIV come with an Air Vent/Drain situated on the side of the PRV pad. The BIV has a second plugged port on the
opposite side of the pad. An additional port on both the BIV and Jumbo BIV is located along side of the gearbox. To use a different
port position, relocate the factory supplied drain valve or install an additional drain valve. If the Air Vent/Drain is being relocated,
use a ¾"NPT plug to seal the empty port. The barb fi tting must be removed from the Air Vent/Drain body to install and replaced once
the Air Vent/Drain body is tightened.

7.0 PRESSURE RELIEF VALVE

CAUTION
If there is a pressure relief valve on the bottom side of the valve. It may be set to any pressure between 50 and 200 psi. Its function
is to protect the pump and the supply hose from excess pressure. The relief valve may be mounted with its opening facing the front,
back, right or left. A piece of hose or tubing may be mounted on the round spout to direct the water coming out of the relief valve
away from the pump panel. To change the orientation of the relief valve, remove the four 7/16 bolts on the corners of the relief valve
fl ange, orient the valve the way you want it, and replace the bolts. Use a drop of thread locking compound on the threads of the bolt
to prevent them from coming loose.

7.1 RELIEF VALVE SETTING PRESSURE

To set the relief valve pressure turn the adjusting screw on the relief valve housing until the surface of the screw is even with
the desired pressure. A 9/16" (14mm) socket or a 1/4" Allen wrench may be used to turn the adjusting screw. Do not cap or plug
discharge opening.

7.2 RELIEF VALVE FLOW vs. PRESSURE CURVE

0 100
300
275
250
225
200
175
150
125
100
75
50
25
0
0 25
©Copyright Task Force Tips, Inc. 2002 - 2011
35
30
25
20
15
10
5
0
Loss of prime can interrupt water fl ow and cause injury or death. Always bleed out air with air
valve to prevent possible loss of prime.
PRESSURE RELIEF VALVE PERFORMANCE
200 300 400
200 PSI SETTING
125 PSI SETTING
50 PSI SETTING
50 75 100
FLOW (GPM)
SUCTION SCREEN PRESSURE LOSS
0 1000 2000 3000
0 200 400 600 800
500 600 700
FLOW (LPM)
20
15
10
5
0
125 150 175 200
9
4000 5000 6000
4.5" Waterway
5.0" Waterway
1000 1200 1400 1600
FLOW (GPM)
Adjusting
Screw
Relief Valve
Discharge Opening
LIA-200 July 30, 2011 Rev13
(LPM)
7000
2
1.5
1
0.5
0
1800 2000