Alternate Energy Systems, Inc.
LPG Vaporizers - LP/Air Blenders - Gas/Gas Blenders - NatGas Backup Systems - PeakShaving Systems
Current Price List
Accessories for LPG Systems, Liquid Transfer Pumps, AEP-Series
 

Single and DualPump System Features

  • Capacities from 5 gpm to 150+ gpm
  • Direct-Drive Pumps up to 26 gpm
  • Belt-Driven Pumps 29 gpm and above
  • Skid-mounted
  • Primed and Painted
  • Inlet Strainer
  • Flexible Inlet/Outlet Connections
  • All-welded piping
  • Backpressure Regulator
  • Summer-Bypass
  • Liquid-filled Pressure Gauges
  • Single-Pump Systems
  • Duplex-Pump Systems
  • Blackmer Pumps
  • Corken Pumps
  • US Voltages
  • International Voltages
  • Ex-proof Motors (Class I, Div. 1, Group D [Flame-Proof])

LPG Transfer Pumps, as the name implies, are used to transfer liquid LPG from the storage tanks to the vaporizer. In systems with venturi LPG/air mixing systems, they are also responsible for maintaining the pressure needed for optimum and efficient function of the venturi mixers.

AES uses pumps from the two leading manufacturers, Blackmer and Corken. All pumps are of "positive displacement" design and use rotary vane pumps with a built-in over-pressure relief valve, designed for continuous use with high reliability.

All pumps are mounted on steel skids, and are primed and painted. They are equipped with constant pressure regulator, strainer, isolation valves, summer bypass loops, liquid filled pressure gauges, and other components that are required for safe operation.

All systems are supplied with an explosion proof motor to meet Class I, Div. 1, Group D [Flame-Proof] requirements, and are available for 60Hz service or for 50Hz service and for various voltages. Smaller pumps are for single phase service. Larger pumps are for 3-phase service and require magnetic motor starters.

When sizing a pump system, the nominal pump capacity should be approximately twice the nominal capacity of the LP or LP/Air system. Nominal pump capacities may vary with type of LPG, ambient conditions, available electric service, required discharge pressure, and other factors.

Blackmer pumps up to model AEP-12B, and Corken pumps up to model AEP-18C, are direct-drive pumps (electric motor directly coupled to pump). Larger pumps are belt-driven.

The purpose of Duplex Pump Systems is to provide maximum redundancy. They are therefore manufactured as individual pumps that only share a common skid. All bypass and isolation valves exist in duplicate and allow using the pumps in any combination: Pump 1, Pump 2, or Pump 1 and Pump 2 together. Each pump can be completely isolated so that maintenance and repair work on this pump does not affect the other pump, or the system availability.

Magnetic motor starters can be supplied either as separate components, installed on the pump skid, or integrated with the system controls. If pump systems are integrated with the vaporizer or vaporizer/blender controls, a start/stop station in an ex-proof enclosure is installed directly at the pump skid and provides local pump control.

Integrated pumps can also be equipped with an automatic start/stop function in response to the pressure in the storage tank(s). The price adder for these options is shown below (in section "Motor Starters and other Options").

 
 
 
 
 

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Motor Starters and Other Options for Single-Phase Pumps (fits both Blackmer and Corken Pumps)
Liquid Transfer Pumps with single-phase motors can be supplied with a simple, explosion-proof ON/OFF switch that is integrated into the junction box directly at the pump motor. If the pump control is desired to be integrated with the vaporizer- or vaporizer/blender control system (for example to facilitate remote monitoring and control), pumps with single-phase motors can also be equipped with contactors.
 
It is recommended that contactor-equipped pumps are also equipped with a local Start/Stop station that allows pump control from the pump location. AES Start/Stop stations are configured with an explosion-proof enclosure (Class I, Div 1, Group D [Flame-Proof]), green START button, red STOP button, and amber pilot light (pump ready to be started).
  
The operation of single-phase pumps with contactors can also be automated in response to the pressure in the storage tanks (pump will start automatically if tank pressure falls below an adjustable setpoint, and stays on until the tank pressure has recovered above a second adjustable setpoint).
Description (for Single-Phase Motors) Single-Pump Dual-Pump

Pump Contactor for single-phase pumps, max. motor size 5HP; installed in vaporizer- or vaporizer/blender control panel; terminals for AC feed, pump connection, and control voltage.

US-$ 896 US-$ 1,616
Pump Contactor for single-phase pumps, max. motor size 5HP; installed in separate enclosure;supplied loose for indoor field installation (NEMA 1). US-$ 1,256 US-$ 2,261
Pump Contactor for single-phase pumps, max. motor size 5HP; installed in separate enclosure;supplied loose for outdoor field installation (NEMA 3R). US-$ 1,633 US-$ 2,640
Automatic Start/Stop Function and Control System Integration  (for Single-Phase Motors) Single-Pump Dual-Pump
Integration of pump control in vaporizer- or vaporizer/blender control system; includes Start/Stop Station, Explosion-Proof, NEMA 7,9,3R Outdoor Enclosure; Start/Stop Station; Pilot Light; installed at pump skid. US-$ 3,111 US-$ 4,560
Automatic pump start/stop in response to pressure in storage tank(s); includes option "Integration of pump control in vaporizer- or vaporizer/blender control system"; includes Rosemount pressure transmitter in pump inlet. US-$ 6,514 US-$ 7,963
Start/Stop Stations (for Single-Phase Motors) Single-Pump Dual-Pump
Start/Stop Station, Explosion-Proof Class I Div 1 Group D [Flame Proof]; installed in separate enclosure; green START button; red STOP button; amber Pilot Light; supplied loose for field installation at pump location (NEMA 7, 9, 3R Ex-Proof Outdoor Enclosure). US-$ 1,810 US-$ 3,257
Start/Stop Station, Explosion-Proof Class I Div 1 Group D [Flame Proof]; installed in separate enclosure; green START button; red STOP button; amber Pilot Light; and integrated ESD Station(Mushroom Button); supplied loose for field installation at pump location (NEMA 7, 9, 3R Ex-Proof Outdoor Enclosure). US-$ 2,213 US-$ 3,662

 

 

 

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Motor Starters and Other Options for Three-Phase Pumps (fits both Blackmer and Corken Pumps)

Liquid Transfer Pumps with 3-phase motors always require magnetic motor starters. All AES magnetic motor starters are configured with contactor, solid state motor overload protection, service-disconnect function, and manual reset.

AES Starter Packages will be configured to match the selected pump size and motor, and are available for indoor installation, outdoor installation, and explosion-proof Class I, Div 1, Group D [Flame-Proof] installations. It is recommended that all pumps are also equipped with a local Start/Stop station that allows pump control from the pump location. AES Start/Stop stations are configured with an explosion-proof enclosure (Class I, Div 1, Group D [Flame-Proof]), green START button, red STOP button, and amber pilot light (pump ready to be started).

All types can also be integrated into the vaporizer or vaporizer/blender control system for remote monitoring and control of the pump operation.

The pump operation can also be automated in response to the pressure in the storage tanks (pump will start automatically if tank pressure falls below an adjustable setpoint, and stays on until the tank pressure has recovered above a second adjustable setpoint).

Starter Packages Description (for Three-Phase Motors)

Single-Pump Dual-Pump

Starter Package, Non-Explosion-Proof; installed in separate enclosure without Start/Stop Station; supplied loose for indoor field installation (NEMA 1 Indoor Enclosure).

up to
10 HP
US-$ 2,245 US-$ 4,041
over
10 HP
US-$ 2,693 US-$ 4,848

Starter Package, Non-Explosion-Proof; installed in separate enclosure with integrated Start/Stop Station and Pilot Light; supplied loose for indoor field installation (NEMA 1Indoor Enclosure).

up to
10 HP
US-$ 2,715 US-$ 4,512
over
10 HP
US-$ 3,165 US-$ 5,320

Starter Package, Non-Explosion-Proof; installed in separate enclosure without Start/Stop Station; supplied loose for outdoor field installation (NEMA 3R Outdoor Enclosure).

up to
10 HP
US-$ 2,459 US-$ 4,255
over
10 HP
US-$ 2,906 US-$ 5,062

Starter Package, Non-Explosion-Proof; installed in separate enclosure with integrated Start/Stop Station and Pilot Light; supplied loose for outdoor field installation (NEMA 3ROutdoor Enclosure).

up to
10 HP
US-$ 2,929 US-$ 4,725
over
10 HP
US-$ 3,378 US-$ 5,532

Starter Package, Explosion-Proof Class I Div 1 Group D [Flame Proof]; installed in separate enclosure with integrated Start/Stop Station and Pilot Light; supplied loose for outdoor field installation (NEMA 7, 9, 3R Ex-Proof Outdoor Enclosure).

up to
10 HP
US-$ 5,381 US-$ 9,686
over
10 HP
US-$ 6,292 US-$ 11,312
Automatic Start/Stop Function and Control System Integration (for Three-Phase Motors) Single-Pump Dual-Pump
Integration of pump control in vaporizer- or vaporizer/blender control system; includes Start/Stop Station, Explosion-Proof Class I Div 1 Group D [Flame Proof]; green START button; red STOP button; amber Pilot Light; installed in separate enclosure at pump skid. US-$ 3,111 US-$ 4,560

Automatic pump start/stop in response to pressure in storage tank(s); includes option "Integration of pump control in vaporizer- or vaporizer/blender control system"; includes Rosemount pressure transmitter in pump inlet.  

US-$ 6,514 US-$ 7,963
Start/Stop Stations (for Three-Phase Motors) Single-Pump Dual-Pump
Start/Stop Station, Explosion-Proof Class I Div 1 Group D [Flame Proof]; installed in separate enclosure; green START button; red STOP button; amber Pilot Light; supplied loose for field installation at pump location (NEMA 7, 9, 3R Ex-Proof Outdoor Enclosure). US-$ 1,810 US-$ 3,257
Start/Stop Station, Explosion-Proof Class I Div 1 Group D [Flame Proof]; installed in separate enclosure; green START button; red STOP button; amber Pilot Light; and integrated ESD Station("Mushroom" Button); supplied loose for field installation at pump location (NEMA 7, 9, 3R Ex-Proof Outdoor Enclosure). US-$ 2,213 US-$ 3,662
Starter Installation (for Three-Phase Motors) Single-Pump Dual-Pump
Installation of Non-Explosion-Proof Motor Starter inside a Vaporizer Control Room; includes separate conduit entries in walls of vaporizer control room for power feed, connection to pump, and connection to Start/Stop Station. US-$ 1,076 US-$ 1,939
Installation of Non-Explosion-Proof Motor Starter in a separate enclosure outside a Vaporizer Control Room; includes separate conduit entries for power feed, connection to pump, and connection to Start/Stop Station. US-$ 1,914 US-$ 3,442
Installation of Explosion-Proof Motor Starter at pump skid; includes mounting frame for ex-proof starter enclosure; includes conduit connection between starter enclosure and motor junction box; includes 18-inch flex conduit. US-$ 2,740 US-$ 4,934

Last Update 31 JAN 2019

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