Hale QTWO Two Stage Midship "Muscle" Pump
Hale’s QWO two-stage pumps provide maximum power.
Unrivaled power and reliability.
That’s what firefighters expect from Hale’s two-stage midship pump.
And they get it time after time.
Firefighters trust Hale for built-in durability and ease of use.
Hale’s heavy-duty 1000, 1250, 1500, 1750, and 2000 Qtwo series two-stage midship pumps are the finest, most reliable centrifugal pumps ever built.
Hale’s QTWO delivers the features firefighters demand.
Large suction inlets and built-in pumping reserve.
The Qtwo puts the features firefighters need in a design that is ahead of its time.
The QTWO offers unmatched performance by design:
Oversized relief valve
Offers greater bypass with less restriction and less pressure rise
Full flow waterways
Cuts friction losses and delivers maximum pressure at discharge valve
Large suction inlet
Delivers pump capacities beyond NFPA 1901 standard ratings
Single tank to pump connection
Designed to provide flows up to 900 GPM with a 3-inch valve and 1200 GPM with a 4-inch valve. (Optional dual tank to pump connection available)
Ten standard and four additional optional 3-inch discharge ports
Each designed to be capable of flow capacities in excess of 1500 GPM with low pressure drop
Two standard and three additional optional 4-inch discharge ports
Each designed to be capable of flow capacities in excess of 2400 GPM with low pressure drop
Designed to exceed 2000 GPM NFPA rating and to exceed 3000 GPM from a sufficient water source or in relay mode.
When preparing the specifications for your new pumper, assure the use of a Hale pump by incorporating these pump specifications as written.
No competitive pump can match Hale's construction or performance.
The pump shall be of a size and design to mount on the chassis rails of commercial and custom truck chassis, and have the capacity of ___ gallons per minute (U.S. GPM), NFPA-1901 rated performance.
The entire pump shall be assembled and tested at the pump manufacturer's factory.
The pump shall be driven by a drive line from the truck transmission. The engine shall provide sufficient horsepower and RPM to enable pump to meet and exceed its rated performance.
The entire pump, both suction and discharge passages, shall be hydrostatically tested to a pressure of 600 PSI. The pump shall be fully tested at the pump manufacturer's factory to the performance spots as outlined by the latest NFPA Pamphlet No. 1901. Pump shall be free from objectionable pulsation and vibration.
The pump body and related parts shall be of fine grain alloy cast iron, with a minimum tensile strength of 30,000 PSI (2069 bar). All metal moving parts in contact with water shall be of high quality bronze or stainless steel. Pump utilizing castings made of lower tensile strength cast iron not acceptable.
Pump body shall be horizontally split, on a single plane in two sections for easy removal of entire impeller assembly including wear rings and bearings from beneath the pump without disturbing piping or the mounting of the pump in chassis.
The pump body shall extend as one piece across the truck chassis from side mounting to side mounting and incorporate the discharge manifolding system with a minimum of (2) 4” ports and (7) 3” ports.
The pump shall have two impellers and be of series-parallel, two stage design. The pump shall be equipped with an all bronze waterway transfer valve, capable of switching from one pumping mode to the other with two and one-half turns of the transfer valve control handwheel. (No exceptions) The transfer valve shall be equipped with a positive mechanical indicator to register the position of the transfer valve at all times. (If optional power transfer valve is supplied, it shall be equipped with a manual override and not be electrically operated. (No exceptions)
Pump shaft to be rigidly supported by three bearings for minimum deflection. One high lead bronze sleeve bearing to be located immediately adjacent to the impeller (on side opposite the gearbox). The sleeve bearing is to be lubricated by a force fed, automatic oil lubricated design, pressure balanced to exclude foreign material. (No exceptions.) The remaining bearings shall be heavy-duty, deep groove ball bearings in the gearbox and they shall be splash lubricated.
The pump shaft shall have only one packing gland located on the inlet side of the pump. It shall be of split design for ease of repacking. The packing gland must be a full-circle threaded design to exert uniform pressure on packing and to prevent "cocking" and uneven packing load when it is tightened. (No exceptions.) It shall be easily adjusted by hand with rod or screwdriver without special tools or wrenches required. The packing rings shall be of a unique, permanently lubricated, long-life graphic composition and have sacrificial zinc foil separators to protect the pump shaft from galvanic corrosion. (No exceptions.)
Optional mechanical seal in place of pump packing. One (1) only required on the suction (inboard) side of the pump. The mechanical seal must be two (2) inches in diameter and shall be spring loaded, maintenance free and self-adjusting. Mechanical seal construction shall be a carbon sealing ring, stainless steel coil spring, Viton rubber cup, and a tungsten carbide seat with Teflon backup seal.
Pump impellers shall be hard, fine grain bronze of the mixed flow design; accurately machined and individually balanced. The vanes of the impeller intake eyes shall be of sufficient size and design to provide ample reserve capacity utilizing minimum horsepower.
Impeller clearance rings shall be bronze, easily renewable without replacing impeller or pump volute body, and of wrap-around double labyrinth design for maximum efficiency. (No exceptions.)
The pump shaft shall be heat-treated, electric furnace, corrosion resistant stainless steel to be super-finished under packing for longer shaft life. Pump shaft must be sealed with double-lip oil seal to keep road dirt and water out of gearbox.
Pump gearbox shall be of sufficient size to withstand up to 16,000 lbs. ft. of drive through torque of the engine system. The drive unit shall be designed of ample capacity for lubrication reserve and to maintain the proper operating temperature.
The gearbox drive shafts shall be of heat-treated chrome nickel steel and at least 2-3/4 inches in diameter, on both the input and output drive shafts. They shall withstand the full torque of the engine
All gears, both drive and pump, shall be of highest quality electric furnace chrome nickel steel. Bores shall be ground to size and teeth integrated and hardened, to give an extremely accurate gear for long life, smooth, quiet running, and higher load carrying capability. An accurately cut spur design shall be provided to eliminate all possible end thrust. (No exceptions.)
The pump ratio shall be selected by the apparatus manufacturer to give maximum performance with the engine and transmission selected.
If the gearbox is equipped with a power shift, the shifting mechanism shall be a heat treated, hard anodized aluminum power cylinder, with stainless steel shaft. An in-cab control for rapid shift shall be provided that locks in road or pump.
For automatic transmissions, three green warning lights shall be provided to indicate to the operator(s) when the pump has completed the shift from Road to Pump position. Two green lights to be located in the truck driving compartment and one green light on pump operators panel adjacent to the throttle control. For manual transmissions, one green warning light will be provided for the driving compartment. All lights to have appropriate identification/instruction plates.
The priming pump shall be a positive displacement, oil-less rotary vane electric motor driven pump conforming to the requirements of NFPA 1901. The pump body shall be manufactured of heat treated anodized aluminum for wear and corrosion resistance.
The pump shall be capable of producing a minimum 24 Hg vacuum at 2000 feet above sea level.
The electric motor shall be a 12 VDC (or 24 VDC) totally enclosed unit.
The priming pump shall not require lubrication.
The priming pump shall be operated by a single push-pull control valve mounted on the pump operator panel. The control valve shall be of all bronze construction.
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