Hale's electric rotary vane positive displacement primer, supplied as a complete kit — motor-pump unit, ground strap and control valve, ready for assembly. The pump body and vanes are self-lubricating, so there is no oil tank to maintain and nothing discharged onto the ground at every draft. Specified by apparatus builders on midship and booster pump installations. Available in 12 and 24 volt. We supply it across Egypt, the Gulf and Africa.
| Pump type | Rotary vane, positive displacement, electrically driven |
| Voltage | 12 VDC (ESP-12) or 24 VDC (ESP-24) |
| Lubrication | Self-lubricating vanes and body — no reservoir required |
| Rated lift | 100% of rated capacity at under 10 ft (3.05 m) vertical lift through 20 ft (6 m) of suction hose |
| Maximum lift | 22 ft (6.7 m) — not to be exceeded except at low elevation |
| Priming time | Water at discharge within 30–45 s; do not run the primer beyond 45 s |
| Engine speed when priming | 1,000 rpm maximum |
| SPV valve rating | Factory tested to 26 in. (660 mm) Hg vacuum and 600 PSIG (41 bar) |
| Dry vacuum test | At least 22 in. Hg, losing no more than 10 in. Hg over 5 minutes |
| Suction connection | 3/4 in. NPT |
| Vacuum hose | 3/4 in. (19 mm) ID for midship pumps; 1/2 in. (13 mm) tubing for booster pumps |
| Primer discharge hose | 2½ in. (64 mm) rubber |
| Minimum wire | 14 AWG, type SXL or GXL to SAE J1128 |
| Warranty | 2 years or 2,000 hours, whichever comes first |
A shut-off valve must sit in the priming line between the primer and the main pump; the ESP is supplied with one. The SPV comes in universal mount and pump mount versions and, bolted to a Hale Midship series pump, conforms to NFPA requirements for priming time and hydrostatic test. Hale states it gives a faster priming time and longer primer life, and because its hose connections are not at the operator panel it frees up panel space — usually the deciding factor on a tight build. The PVG is the alternative. Tell us the pump model and panel layout and we will confirm which one your build needs.
| SPV repair kit | 546-1680-00-0 |
| PVG repair kit | 546-1420-00-0 |
| Lubricant tank (lubricated variant) | 108-0012-00-0 — 4 quart / 3.8 litre |
| Installation manual | 029-0810-01-0 |
Mount the primer rigidly and accessibly, close to the main pump, with the discharge pointing down. The SPV must sit higher than the pump body so water drains out of the vacuum hose. Ground the primer to the chassis with the strap supplied. Mounting screws and washers are not supplied by Hale. All fasteners want a locking anaerobic adhesive such as Loctite 246. Terminal torque is 50–60 in-lb maximum, solenoid-to-ground 15–20 in-lb.
If you specify the optional lubricated system, the coolant is a propylene glycol and water mix — never ethylene glycol. A 50/50 mix freezes at −32 °C, 60/40 at −48 °C and 66/34 at −60 °C. For the Gulf and North Africa the 50/50 mix is normally more than sufficient.
The ESP pump body and vanes are self-lubricating, so the system needs no lubricant reservoir. There is no oil tank to check or refill, and no oil is expelled onto the ground when the primer runs. On apparatus that previously used an oil-bath primer, that removes both a consumable and a ground contamination point at every draft.
If the pump has not begun discharging water within 30 to 45 seconds, stop and check the system for air leaks. Hale specifies that the primer must not be run for more than 45 seconds continuously. Engine speed should not exceed 1,000 rpm while priming.
The pump will draw 100 per cent of its rated capacity with less than a 10 foot (3.05 m) vertical lift through 20 feet (6 m) of suction hose. Hale advises against attempting lifts beyond 22 feet (6.7 m) except at low elevation.
The SPV is available in universal mount and pump mount versions and, when bolted to a Hale Midship series pump, conforms to NFPA requirements for priming time and hydrostatic test. Hale states the SPV gives a faster priming time and longer primer life, and its hose connections sit away from the operator panel, which saves panel space. The PVG is the alternative shut-off valve. A shut-off valve of one type or the other must be fitted in the priming line between the primer and the main pump.
Yes. The ESP is supplied as a 12 VDC or a 24 VDC system. The ground strap is sized for the corresponding load — 300 amp on 12 volt systems and 150 amp on 24 volt. Minimum solenoid voltage is 9.0 VDC on 12 volt systems and 18.0 VDC on 24 volt.
Two years or 2,000 hours of usage, whichever comes first.
Tell us the pump model, the voltage and how many units. We will confirm the right control valve for your panel layout and send a written quote with freight and lead time.
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