N Series
Irrigation Pumps

CASING - The Monarch NE series end suction centrifugal pumps are constructed using a thick walled cast iron casing, for maximum durability in high-pressure application. The back pull-out design allows for easy access to the impeller without disturbing the suction and discharge piping.
IMPELLER - Cast iron, enclosed type for maximum efficiency, all are dynamically balanced. Largest units are hydraulically balanced to ensure smooth vibration free performance and to prevent excessive thrust loads on the electric motor bearings. Impeller diameters can be trimmed to suit various applications.
SEAL - All pumps are available with a mechanical seal or gland packing. Mechanical seals are self lubricating and have Buna-N bellows with brass and stainless steel hardware. Gland packing is graphite impregnated and requires grease. Some larger models are available with double mechanical seals.
BRONZE WEAR RINGS - Easily replaceable, they insure close tolerances for maximum efficiency. Included in all pumps.
FRAME - NT Rugged cast iron construction provides stability with either belt or coupling drives, while heavy duty single and double row ball bearings allow a minimum of shaft deflection. Shaft is made from one piece, high strength stress proof steel.
HOUSING - NH Made of rugged cast iron, designed to bolt directly onto the engine, with flywheel housings ranging from SAE4 to SAE2, depending upon model or pump.
NT & NH - The Monarch NT & NH series of frame mounted end suction centrifugal pumps are ideal for booster, circulator, and agricultural irrigation systems where either belt & pulley drive, or direct drive through a flex coupling is required.