Hale PSD - Manual (Page 4)

PSD-75 / 100 / 125 / 150 Fire Pump
General Specifications -
Type Single stage, gear driven, centrifugal pump. For applications using adequate PTO,
transfer cases and other power transmission sources with clutch or other device to
allow pump engagement.
Impeller Bronze, closed type, single suction with front and rear seal rings, mixed flow
and replaceable wear rings. 750 thru 1250 GPM -10-inches diameter, 1500 GPM
-10-1/4-inches diameter. Dynamometer tested.
Pump Shaft Heat treated stainless steel ground to finish size.
Packing Maintenance free mechanical seal.
Pump Case Nodular iron material (600 PSI hydrostatic pressure tests) with flanged discharge
outlet, auxiliary 3-inch NPTF discharge tap provided. Volute is rotatable 360° in
1/2° increments.
Inlet Flange Six-inch #77 style victaulic connector.
Discharge Flange Four-inch ASA #150 bolt pad.
Gauge Connection 1/4-inch NPTF on pump case.
Transmission All ball bearing construction. Precision helical cut and crown ground, Class 11,
treated gears. Splash type lubrication using SAE 20 weight oil. Equipped with
water cooled oil pan assembly to reduce transmission temperatures on 1000 GPM
and larger. Tach outlet with 90° adapter.
Gear Ratio 1.40, 2.16, or 2.37.
Drive Shaft Heat treated steel. 1-3/4 inch diameter with 7/16-inch key to accept commercially
available drive flanges and yokes.
Rotation Available in either standard opposite engine rotation or same as engine.
Mounting Rear bracket supported by three 1/2-inch bolts. Front of pump supported by the
apparatus builder.
Weight Standard weight less oil and all options - 275 pounds.
Miscellaneous Unit is prime painted, two Operation/Maintenance Manuals are provided.
outlet and transmission are in vertical position unless otherwise specified.
Optional Volute position, horizontal transmission, inverted transmission, front heat jacket,
bronze package, special electric clutch package, primer, relief valves, master
and TRV.
Updated 2/2003