OPERATION
1. Determine criteria for your testing from NFPA or ISO publications, or other
authority.
2. Connect Test Kit swivel inlet to hydrant or other fixed 2 1/2” discharge
device. (For best results, the test kit should be preceded by minimum 3
foot long straight, open 2 1/2” waterway.)
3. Loosen thumbscrews and rotate pitot blade out of stream
position.
4. Select from the Discharge Table, the preferred tip diameter for the expected
flow. Install the tip as follows:
a. Unscrew lock ring.
b. Pull out gray tip. (Caution: do not use tools which may damage water-
way).
c. Insert proper size tip completely until retaining ring is snug against noz-
zle body.
d. Screw on lock ring clockwise until tight.
CAUTION:
FAILURE TO REPLACE LOCK RING MAY ALLOW TIP TO
BLOW OUT, CAUSING DAMAGE OR INJURY.
5a. Hydrant: Open hydrant and flush rocks, etc. Rotate blade back into center
of stream and tighten thumbscrew. Record pressure reading.
5b. Pumper: After warm-up, bring pump up to desired speed and close throt-
tling valve(s) to set discharge pressure at required rating. Rotate pitot blade
into stream center and tighten thumbscrew. Record pressure reading.
6. When hydrant or pumper must continue to operate (e.g. endurance test),
rotate blade out of stream between readings to reduce wear and avoid
damage.
7. Read flow at intersection of tip size and pressure in Table. DO NOT apply
additional hydrant coefficients since the nozzle tip replaces the hydrant
outlet as the orifice.
8. After use, open bleeder valve and drain any water in the pitot air chamber.
Draining is especially important in freezing weather.
NOTE:
When ordering replacement tips check retaining ring (#17) and O-Ring (#19)
** For other threads order by description and thread size (ODM and TPI) or by Akron Thread
Code.
†† Package of 50 Ball Bearings - P/N 109041.
† Parts included in Pitot Blade Replacement Kit - P/N 110086. Kit includes reusable
Alignment Fixture - P/N 7-12-269
* Tips not part of standard unit. Only tips in standard units are U.L. Classified.
Parts List
ITEM NO.
DESCRIPTION
PART NUMBER
QUANTITY
1
3/4”/19mm tip
9015-0015
1
1
15/16”/23.8mm tip*
9015-0016
1
1
1”/25mm tip*
9015-0017
1
1
1 1/8”/28.5mm tip
9015-0018
1
1
1 1/4”/31.8mm tip*
9015-0019
1
1
1 1/2”/38.1mm tip
9015-0020
1
1
1 3/4”/44.5mm tip
9015-0021
1
1
1 7/8”/47.6mm tip*
9015-0024
1
1
2”/50.8mm tip
9015-0022
1
1
2 1/4”/57.2mm tip
9015-0023
1
2
Body
110283
1
3
Set Screw
7-42-023
1
4
2 1/2” Inlet Swivel (NH) **
101420
1
5
Gasket
7-17-043
1
6
Ball Bearings
††
39
7
Bleeder Valve
7-79-045
1
8
Thumb Screw
7-67-110
1
9
Pitot Adapter Tube
110098
1
10
Stop Screw
7-67-111
1
11
Pressure Gauge - PSI/kPa
7-18-183
1
12
Quick Connect - 1/4” Socket
7-07-169
1
13
Quick Connect - 1/4” Plug
7-07-170
1
14†
O-Ring
7-57-022
1
15†
Set Screw (cup point)
7-65-024
1
16†
Pitot Blade
110087
1
17
Retaining Ring
7-56-089
1
18
Lock Ring
109227
1
19
O-Ring
7-57-239
1
20†
Set Screw (dog point)
7-65-117
1
21
O-Ring
7-57-052
1
22
Label
7-73-247
1
–
Carry Case w/Liner
7-07-311
1
–
Instruction Manual
7-04-607
1
–
Laminated Discharge Table
7-07-328
1
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