Red Jacket LPG Premier, Installation Manual, Page: 20 / 40

16
Prior to Installing or Replacing LPG Pump or Motor
Read This Section before Proceeding
1. The Red Jacket submersible Liquefied Petroleum Gas (LPG) pump is designed to pump liquefied petroleum
gas in the liquid state. This includes butane and propane and any mix of butane and propane. The vapor
pressure of the liquid should not be more than 1380 kPa (200 psi) at 37.8°C (100°F). The density of the liquid
should be less than 0.6 kg/l (37.4 lb./ft3). Pumping fluids other than LPG will overload the motor and damage
the pump.
2. The pump should be installed according to local code regulations governing submersible LPG installations
and also for ease in servicing. The pump is earthed (grounded) through the column pipe or the conduit pipe.
The design of the mounting for the pumping unit shall be such as to prevent imposing any unacceptable loads
on the on the storage vessel. Such loads might be caused by the weight of the various parts and/or by the
forces due to operation of the pump including its starting and stopping but also by vibration. To minimize
vibration, all pipe workings need to be securely mounted.
3. If a manifold or pump well is used, the maximum flow velocity at any point in the suction line from the tank must
not exceed 1.0 m/sec. (3.3 ft./sec.). The equalization line must be of sufficient size to equalize the pressure of
the manifold and supply vessel. The bottom of the pump inlet is to be aligned with the top of the manifold’s
inlet opening.
4. Installing the submersible pump directly into the storage tank without a manifold is allowable only when
permitted by local regulations. In such installations, the clearance between the tank bottom and pump inlet
must be a minimum of 125 mm (5 inches). A sump directly underneath the pump may be used if the size is at
least DN200 (8 inches).
5. The pump is cooled and lubricated by the product being pumped. The required minimum differential pressure
of 400 kPa (58 psi) is to guarantee that during operation all stages are submerged in the LPG liquid. The
pump is designed to operate continuously or with an intermittent duty cycle, not to exceed 30 on/off cycles
per hour.
6. Never wire pump to operate at less than 400 kPa (58 psi) differential pressure.
7. These submersible motors contain internal on-winding thermal protectors that will automatically trip at 110°C
and reset at 52°C.
8. Red Jacket submersible LPG pumps are not designed to handle abrasive or foreign particles in the product
being pumped other than small parts of LPG dust or iron oxide, which can normally be found in LPG. Do not
use a pump inlet filter without written approval from Veeder-Root prior to its use. Installation of a strainer 0.1
mm (100 micron) in the inlet to the storage tank is recommended.
9. Red Jacket LPG pump-motor units are designed in accordance with European CENELEC and CEN
Standards and the European Directive 94/9/EC (ATEX) “Equipment for Potentially Explosive Atmospheres.”
(
c
1180
e
II 2G Ex b c db IIA T4 Gb
).
10. For maximum life, a submersible pump should not be run dry.
11. The ambient temperature is to be -20°C to +40°C.