Belt Driven Centrifugal Pumps

Frame Mount Advantages
Ace belt driven pumps are available in a variety of models which can be belt driven or direct coupled to a power source. The pumps are available in either clockwise or counterclockwise rotation. The standard bare shaft pumps are designed with a keyway for mounting a drive pulley or coupling.

Magnetic Clutch Driven Advantages
The integral magnetic clutch driven centrifugal pump design was first offered by Ace in 1982. These models enabled the operator to free the PTO shaft and hydraulic system for other uses. The 12 volt DC magnetic clutch is driven by a v-belt from the engine drive shaft. The clutch is idle until engaged by an on-off toggle switch located at the driver’s seat.

Typical Clutch Installation
Ace magnetic clutch driven frame mounted centrifugal pump models are available with counterclockwise (CCW) rotation and clockwise (CW) rotation. The direction of rotation is determined when facing the shaft. Sizes available are 1-1/4” x 1”, 1-1/2” x 1-1/4”, and 2” x 1-1/2”.



  • Clockwise Rotation when facing shaft end
  • Stainless Steel Shaft and Wear Ring
  • Chemical resistant Valox® or optional cast iron impeller
  • Standard Viton® Carbon/Ceramic seal or optional Severe Duty Silicon Carbide Mechanical seal
  • MAG-D models equipped with heavy 12V clutch
  • X3 model has 3-1/2” (8.89 cm) spacing on mounting base; all other models have 5-1/4” (13.34 cm)
  • DX3 model for Spra-Coupe® Models: 3430, 3440, 3630, 3640, 4440, 4640
  • Maximum Flow: 70 GPM (265 LPM)
  • Maximum Pressure: 170 PSI (11.7 BAR)
  • Maximum Power: 4.2 HP (3.1 KW)
  • Suction 1-1/4″
  • Discharge 1″

X Frame Options

  • 3/4” (1.91cm) Diameter stainless steel shaft (standard models 5/8” diameter) (1.59 cm)
  • Larger bearings for extended life
  • Available with MAG-D clutch
  • 5-1/4” (13.34 cm) mounting bolt spacing
  • X3 frame has 3” (7.62 cm) bolt spacing

Mag-D Clutch

  • 58 ft. lb. (78.6 NM) torque capacity
  • Forged machined pulley for maximum strength
  • Solid forged rotor to maximize torque
  • High temperature epoxy coil
  • Two clutch bearings with high temperature, long life grease
  • Single or double belt drive
  • 4-3/4” pitch diameter

Parts Breakdown FMC-CW

Parts Breakdown FMC-CW-MAG-D