The PRM and FPRM Series mobile displacement pumps avoid the use of fixed piping during the product transfer process and combine the characteristics of normal displacement pumps with the advantage of being positioned inside an AISI 304 stainless steel support fitted with a collection tank. Thanks to the castor wheels with brakes, they can be positioned in proximity of the machine from which the product must be discharged. On falling into the collection tank the product is sucked-up and discharged through vertical piping, to which a detachable pipe is connected. This must be applied at the time of use.