Base Specifications

Packaged Fire-Suppression Pump System

Electric Drive Vertical In-Line Pump

GENERAL:

Furnish and install a prefabricated, skid-mounted Fire Pump System. The system shall be for fire protection service and shall be supplied with the specified drivers, controls, and pump accessory items. The pump driver and control shall be listed by the Underwriters Laboratory (UL) and approved by Factory Mutual (FM) for fire protection service. The pumping system manufacturer shall have a UL-9F35 label certifying third party approval. The pumping equipment shall be installed as recommended in the National Fire Protection Association (NFPA) Pamphlet 20, 'Standard for the Installation of Centrifugal Fire Pumps', latest edition, and accepted books of the authority having jurisdiction. Where installation procedures conflict between NFPA recommendations and the approving authority, the authority's requirements shall take precedence. The system shall consist of a primary electric-motor-driven pump. The fire pump package shall be as manufactured by NAMCO, model __________.

The fire pump shall be designed to deliver _____ gallons per minute at a total differential head of _____ feet of water column (feet) or _____ pounds per square inch (psi(d)). The motor shall have a horsepower rating satisfactory for driving the fire pump at an elevation of _____ feet above sea level. The fire pump shall also be capable of delivering not less than 150 percent of rated flow at not less than 65 percent of rated head. The shutoff head (head attained at zero flow) shall not exceed 120 percent of rated. The fire pump shall be a vertical inline type fire pump. The suction and discharge flanges shall be of identical dimensions and shall be displaced 108 degrees with centerlines concentric on the same horizontal plane. The pump shall be labeled specifically for fire-protection service, and connected to the fire standpipe system. The suction supply for the fire pump shall be from a public service water main at a maximum pressure of _____ psi(g) and a minimum pressure of _____ psi(g) (or from a ground storage tank). The pump casing shall be cast iron with (125)(250) pound-rated discharge flange machined to American National Standards Institute (ANSI) dimensions. The fire pump shall be as manufactured by Aurora, model _____, or equal.

The electric motor pump driver shall be a NEMA-framed induction motor, direct-coupled to the driven pump. The motor shall have a NEMA JM/JP frame, and shall be rated to _____hp, _____rpm, 3 ph, 60 Hz with an (ODP)(TEFC) NEMA enclosure for operation on _____V service. The motor locked-rotor-current shall not exceed the values stated in NFPA Pamphlet 20.

The automatic electric motor controller shall be UL listed and FM approved specifically for fire pump service. The controller shall be designed for full voltage (across-the-line) or reduced voltage (part winding)(wye-delta)(primary resistance)(autotransformer) type starting. The controller shall be rated for the horsepower specified in this specification on electric motors. The controller shall be capable of interrupting a short circuit current at least equal to the available short circuit current in the controller supply circuit. This fire pump controller installation requires an interrupting capacity rating of not less than 100,000 amps RMS symmetrical at an operating voltage of _____. The controller shall be enclosed in a NEMA (2)(3R)(4)(4X)(12) housing. The fire-pump controller shall be as manufactured by Firetrol, model _____, or equal.

The jockey pump shall be a multi-stage, centrifugal type with a capacity of _____ gallons per minute at a total head of _____ feet, and driven by a _____ hp, 3600 rpm, _____ V /_____ ph / 60 Hz, NEMA Design B electric motor in (ODP)(TEFC) enclosure. The jockey pump shall be as manufactured by Goulds, Series SSV.

The jockey pump controller shall include a fused disconnect switch, magnetic starter, 120 Volt control transformer, 'Hand-Off-Auto' switch, pressure switch, minimum run timer. The controllers shall be housed in a NEMA (2)(3R)(4)(4X)(12) enclosure and factory mounted on the NAMCO pumping system. The jockey-pump controller shall be as manufactured by Firetrol, model FTA-500, or equal.

The NAMCO pumping system shall be furnished with the piping accessory items for the pump installation that will adapt the pump connections to the fire protection system and test connections as follows. Fittings subjected to pump discharge pressure shall be of an ANSI (150)(300) pound rating. Fittings subjected to suction pressure shall be of an ANSI 150 pound rating.

System packages will include:

• Mounting of main fire pump, motor, controller, jockey pump and controller, on a welded-steel skid base, all electrical wiring between motors and controllers.
• UL/FM OS&Y suction gate valve with tamper switch (field wired by electrician).
• UL/FM butterfly valve on the discharge with tamper switches (field wired by electrician).
• FM approved silent spring loaded check valves.
• Eccentric suction reducer & concentric discharge increasers (where appropriate).
• Jockey pump piping with listed gate valves, check valve, relief valve & piping.
• Pressure sensing line piped in hard copper per NFPA 20.
• Pump casing relief valve, automatic air-release valve, ball-drip valve, and suction/discharge pressure gauges shall be provided.

• Hose valve test header assembly, with FM approved hose valves with caps and chains (quantity as required by NFPA-20 at rated flow), UL/FM isolation valve, and all required piping/fittings.
• Venturi flow meter loop, with FM approved venturi flow meter, two UL/FM isolation valves, and all required piping/fittings.
• City-water bypass loop, with FM approved silent spring loaded check valve, two UL/FM isolation valves, and all required piping/fittings.

The packaged pumping system shall be hydrostatically tested to a minimum pressure of 200 psi(g) or at 50 psi in excess of the maximum pressure when the maximum pressure is greater than 150psi(g). The test shall be performed at the factory prior to shipment. The entire assembly shall be painted red with two (2) coats of manufacturer’s standard industrial enamel paint system after hydrostatic and electrical tests.

A field acceptance performance test shall be conducted upon completion of pump installation. The tests shall be made by flowing water through calibrated nozzles, approved flow meters or other such accurate devices as may be conducted as recommended in NFPA Pamphlet 20 by the manufacturer of the packaged pump system or his representative in the presence of the authority having jurisdiction and with the authority's final approval and acceptance.

The fire-suppression system shall carry the manufacturer’s standard warranty, and shall be effective a minimum of one year from date of shipment of the system to the job-site.