Hale ESP Priming System - Manual (Page 24)

❑ Installation
24 ESP Primer System Instruction Guide
p/n: 029-0810-01-0
7. Connect electrical leads to the pushbutton contacts.
8. Locate the priming valve flange on the midship pump. (See Figure 3-4:
“Typical SPV / Midship Pump Installation,” on page 22.) The priming
valve flange is located next to the gearbox on the midship pump.
9. Remove the 7/16”-14 screws that hold the priming flange, hose and fit-
tings on the midship pump body. Remove the flange assembly from the
pump body.
10. Remove the strainer and seal ring from the pump body. Clean the
strainer of all debris. DO NOT discard the strainer as it must be used
with the Hale SPV.
11. Apply a light coat of thread locking compound (Loctite #290 or equiva-
lent) to one end of the 7/16”14 x 1-3/4” long studs. Insert studs into the
pump body where the cap screws were removed then tighten studs.
12. Insert the strainer and seal ring into the pump body, then install Hale
SPV. Make sure the vacuum hose connection is facing in the downward
direction when the SPV is installed.
13. Apply a light coating of thread locking compound (Loctite #290 or equiv-
alent) to the exposed stud threads.
Secure SPV in place using the 7/16”-14 nuts provided.
WARNING !
USE ONLY PIPE, HOSE, AND FITTINGS FROM THE PRIMING PUMP VACUUM
CONNECTION TO THE HALE SPV VACUUM CONNECTION RATED FOR 29 IN.
(737 MM) HG. VACUUM.
14. Attach the 3/4” (19 mm) ID vacuum hose from the hose connection on
the SPV to the priming pump connection. Use hose with 3/4” (19 mm)
inside diameter (ID) that is rated for 29 in. (737 mm) Hg. vacuum (e.g.,
Aeroquip #2556-12 or equivalent).
Make sure the hose is routed and properly secured in place to prevent
chaffing and abrasion.
15. Test operation of the Hale SPV and priming pump. Conduct vacuum
and hydrostatic tests in accordance with department procedures,
NFPA1901 or NFPA 1911.