Fuel Oil Pumping Systems
Mechanical Packaged Systems will work closely with our clients to meet specifications and design the best fuel oil pumping system for the site. Located in Millington, Maryland, MPS offers custom manufacturing of fuel oil pumping systems designed to give you energy savings and project scope and cost savings by having all aspects of the project completed at our facility. We can deliver worldwide. We offer:
Fuel oil pump:
The Light Oil Pump and Motor Assemblies are compact, direct drive units designed to meet the performance and reliability standards demanded in commercial, industrial and institutional applications. The pump & motor assemblies are for No. 2, No. 4, and diesel oils.
 Positive Displacement Pumps: MPS will provide and mount two (2) positive displacements rotary type pumps with cast iron housing and self-adjusting, mechanical seals. Pumps that have aluminum, brass, or bronze housings or rotors are not acceptable. Packing gland equipped pumps, close-coupled pumps, Carbonator shaft mounted pumps or centrifugal pumps are not acceptable. The pumps are bi-rotational, positive displacement, internal gear types with cast iron housings and Buna-N self-adjusting mechanical seals. Being positive displacement pumps, the pumps require over-pressure relief valves for protection from an accidently closed or plugged discharge line. Pumps are suitable for both continuous and intermittent duty. Standard motors are base-mounted, have standard N.E.M.A. frames and are of totally enclosed fan cooled construction (TEFC).
Motors: Provide and mount two (2) TEFC, rigid base, standard NEMA frame motors. Pump and motor assemblies shall be factory assembled on a structural steel channel. Rotating parts shall have a steel OSHA guard.
Pump Isolation and Check Valves: Provide and mount four (4) pump isolation valves. Locate one (1) valve on the suction and discharge side of each pump. Isolation valves must allow off-line pump maintenance without system loss of availability. Isolation valves shall be ball type valves to provide full flow while open and positive shutoff when closed. Additionally, two (2) check valves shall be provided and mounted, one (1) located on the discharge of each pump.
Fuel Oil Strainer: Provide and mount one (1) Duplex strainer with 40 mesh basket, one (1) located on the suction side of the pumps.
Vibration Reduction for Fuel System Life Extension: Careful dampening of positive displacement pump vibration is vital to the long life of the pumps, motors, control switches and entire fuel handling system. Pumps shall be connected to the piping via stainless steel flexible metallic braided jackets. Additionally, the pump and motor shall be connected via an elastomeric jaw type flexible coupling.
Relief Valves: Provide and mount two (2) relief valves sized to relieve the full outlet flow of the pump without causing the pump motor to overload or any component’s pressure rating to be exceeded if the discharge is inadvertently valve off. Relief valves must be externally mounted from the pumps and piped to the return line in the field according to NFPA 30. Pump internal relief valves shall not be accepted. Relief valves shall be Preferred Model R.
Compound and Pressure Gauges: Provide and mount a compound gauge on the suction side of the strainers. The gauge shall read 30" vacuum - 15 psig. Provide and mount a pressure gauge on the discharge side of each pump. Gauges selected must provide mid-scale readings under normal operating pressures. Each gauge shall be equipped with an isolation ball valve.
Quality Assurance: The Control Cabinet shall be manufactured and labeled in accordance with UL508A (CSA C22.2 #14 for use in Canada). Simply supplying UL recognized individual components is not sufficient. The assembled control cabinet, as a whole, must be inspected for proper wiring methods, fusing, etc., and must be labeled as conforming to UL508A. Inspection and labeling shall be supervised by UL or other OSHA approved Nationally Recognized Test Lab (NRTL).
Control Cabinet: Provide a completely pre-wired and factory tested control cabinet to ensure job site reliability. The pump set and control cabinet shall be the product of one manufacturer for single source responsibility. The control cabinet shall be constructed to NEMA 1 standards. Doors shall be piano hinges, and a three point lockable latching mechanism. Cabinet interior shall be primed and finished in a white gloss, chemical resistant enamel. Cabinet exterior shall be primed and finished in durable, chemical resistant, textured gray enamel, suitable for industrial environments. All control wiring shall be terminated at a numbered terminal strip to facilitate field connections to remote equipment. All switches shall have maintained contacts. All cabinet front devices shall be identified by black phenolic labels with engraved white lettering. Cabinet shall consist of, but not be limited to, the following:
- Magnetic motor starters with overload protection
- Motor circuit breakers
- “Hand-off-Auto” switch for each pump
- Pump running Indicating lights
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