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Normal priming centrifugal pumps with a single mechanical seal
Material: PVDF (polyvinylidene fluoride)
Non-slip torque transfer
Particularly suitable for viscous or solid particle laden media to be pumped
Max. output rate: 500 l/min (132 US-gpm)
Max. discharge head: 40 m (131 ft)
Motor power: 0.18 - 5.5 kW (0.25 - 7.5 HP)
In the U Pump Series, the motor power is transmitted without slip directly to the pump impeller with a rigid shaft (no magnetic coupling). A mechanical seal prevents the leakage of the media to be pumped and ensures the leak proof sealing of the centrifugal pump.
Advantages of the U Pump Series:
also applicable for higher viscosities or metallic particles in the medium
the highest chemical resistance
robust, thick-walled design
low-maintenance through an optimal adaptation to the medium to be pumped
long-lasting and wear resistant, various types of designs for almost all operating conditions
open impeller (i.e. solids up to 3 mm grain size and 10 Vol. % possible)
models are also available, where no metal parts are in contact with the medium
easy to maintain (wear parts and the mechanical seal can be changed swiftly)
universally applicable, quiet and compact
various chemical resistant materials can be supplied as stock items
available as explosion proof version for combustible environments (ATEX)
The U Pump Series is universally applicable. The design and manufacturing materials allow for optimization for many operating conditions and media to be pumped.
This results in application possibilities, amongst others, for the following application fields
Exhaust air scrubbers
Applications also for dirty and metallically contaminated media
Outer side set up with fluctuating viscosities
Materials and Components
Main material: Parts solid made of PVDF (up to +95 °C / 200 °F))
Elastomere alternatively made of FKM, EPDM, FEP or Kalrez®
Shafts are made of stainless steel or Hastelloy® C4
Mechanical seals made of PTFE, ceramic, carbon or SiC
Structure in the designs A, B and C:
Design A: No metal parts in the pump are in contact with the medium. The impeller is equipped with a shaft sleeve. The face pressure is achieved with a thrust-collar-loaded mechanical seal.
Design B: The mechanical seal is spring-loaded. The impeller is equipped with a shaft sleeve. The spring is made of Hastelloy and in contact with the medium; however, the shaft is not.
Design C: The mechanical seal is spring-loaded. The impeller does not have a shaft sleeve. Simple, robust structure.
The metal parts that are in contact with the medium (shaft sleeve, impeller insert and locking nut) are available in stainless steel or Hastelloy.
High-quality electric motors made in Germany
Also available with a double mechanical seal (U-DO series)
PVDF: Polyvinylidene Fluoride, Pure, milky white, not colored (up to +95 °C)