The manual clutch pumps are equipped with a mechanically activated clutch that is engaged with the flip of a lever on the pump body. Although they require the pump operator to go to the location of the pump to put it into service, they do provide added security of operation in the event of an electrical power failure. Available in three different sizes from 1" to 2", they offer flow rates of 26, 62, or 83 GPM.
The 1" size pump is fitted with a 6" diameter pulley and the 1-1/2" and 2" size pumps have 7" pulleys. All pulleys can be driven with either an "A" size or "B" size belt. The new 51000-Series clutch pumps are capable of operating in either rotational direction.