Armstrong Vertical Fire Pumps
Supply and install as indicated on plans one Armstrong fire pumping system consisting of:
- Fire Pump
One Armstrong Model: ____________________, Vertical In-Line Pump listed and labeled by (Underwriters Laboratories Inc., Factory Mutual), having a capacity of ________ USgpm for a pressure boost of ___________ psig (suction pressure___________ psig, discharge pressure ___________ psig).
The pump shall have bronze impeller, non-corrosive shaft sleeve, packed gland with external flush line to the lantern ring suitable for 125 psig suction pressure. Pumps are supplied with cast iron casings incorporating a double volute design for sizes 6” x 4”, 6” x 5”, 8” x 8”
The pump shall furnish not less than 150% of rated capacity at a pressure not less than 65% of rated head. The shut-off total head of the pump should not exceed 140% of rated total head. Pump to be hydrostatically tested to meet or exceed NFPA 20 requirements.
- Electric Motor
The pump shall be driven by ________ hp, _________ rpm,________ Volt, 3 phase, 60 cycle vertical open drip-proof motor with 1.15 service factor. The motor shall be listed for fire pump service
- Fire Pump Controller and Automatic Transfer Switch Combination
The Automatic Transfer Switch and the Fire Pump Controller combination shall be listed and labeled by (Underwriters Laboratories Inc., Factory Mutual) Make: ________________Model: ____________, and each shall be mounted in separate enclosures, mechanically attached to form one unit and provide for protected interlock wiring
The Automatic Transfer Switch shall be capable of automatic power transfer from normal to alternate second utility emergency power source in case of voltage drop to 90% or normal, phase failure or phase reversal and automatic
retransfer after restoration of normal power conditions.
The Automatic Transfer Switch shall incorporate an externall operated main isolating switch, a manual operating handle,
indicators, contacts or remote alarms, voltage frequency and phase reversal sensing, time delays and memory circuit.
The Fire Pump Controller shall be of the combined manual and automatic: (Full Voltage Limited Service), (Full Voltage Full Service), (Reduced Voltage Auto-Transformer), (Primary Resistor), (Soft-Start), (Part Winding), (Wye-Delta Closed Transition), (Wye-Delta Open Transition).
- Testing
The Fire Pump shall be subjected to an operation test at rated speed. Performance curves are to be plotted showing the efficiency, brake-horsepower and total head developed at shut-off, at rated capacity and at 150% of rated capacity. Certified curves shall be supplied to the purchaser.
- Minimum Fittings
The Fire Pump shall be complete with 3-1/2” dial suction and discharge gauges, and casing relief valve.
- Jockey Pump
The Jockey Pump shall be a Vertical Multi-Stage by Armstrong, Model No. __________ having a capacity of ____________ USgpm for a pressure boost of ________psig. The Jockey Pump shall be driven by a ____________ hp, ____________ rpm, _________Volt, ___________ Phase, ________cycle standard open drip-proof motor.
- Jockey Pump Controller
The Jockey Pump shall be controlled by an automatic Jockey Pump Controller
Model: ___________ with full voltage starter.
- System Operation
Upon system pressure drop, the Jockey Pump will start up automatically and pressurize the system to the set pressure and then stop. If the system pressure continues to decrease below the range of the Jockey Pump, the main Fire Pump will start automatically.
- FirePak Packaged Fire Pump System
Supply and install one Armstrong FirePak Series F_________ Packaged fire pumping system with all the components specified above, assembled on a common base. The unit shall be completely assembled, wired, factory tested and shipped ready for customer’s system inlet, outlet and power source (F4010).
Including check, butterfly valve and test tee on the pump discharge, OS&Y gate valve on the pump suction, and noncorrosive sensing line as per NFPA 20 (F4510).
The jockey pump and jockey pump controller described above will be mounted and wired (F4015), and piped (F4516) on the same base as the FirePak.
