SCHMITT-Centrifugal Pumps U range

Standard suction pumps

Design	block construction
Material	PVDF (Polyvinylidenfluoride)
Max. delivery rate	500 l/min
Max. delivery height	40 m
Drive motor	0,18 -5,5 KW

The impellers of the pumps in this range are shaft-driven. Internal slide rings provide effective sealing for the shaft passage.

The pumps in the U range are available in three different specifications (A, B and C). The specification of pump that you require will depend on the medium you wish to transmit.

• Specification A: No metal parts come into contact with the medium to be transmitted. Thrust-collar-loaded mechanical seal. Impeller equipped with shaft sleeve.
• Specification B: Spring-loaded mechanical seal. Impeller equipped with shaft sleeve.
  The Hastelloy spring is in contact with the medium to be transmitted.
• Specification C: Spring-loaded mechanical seal. Stainless steel or Hastelloy shaft without shaft sleeve. All metal parts in contact with the transmitted medium are manufactured from stainless steel or Hastelloy.

All of the above specifications of pump are suitable for the transmission of media at temperatures of up to 95°C.
The mechanical seal in this range can be manufactured from a variety of different materials, depending on the conditions in which the seals are required to operate.

Sliding materials:
Carbon, Ceramics, SiC
Elastomers:
FKM (i.e. Viton®), EPDM, FEP or Kalrez®

This series can also be equipped with a double-action mechanical seal, (type U-DO). The double-action mechanical seal requires a sealing fluid to be supplied.
These models are available with a choice of electric drive motors: three-phase or single- phase and three-phase explosion protection or flameproof enclosure drives. All drives can be adapted to work off any voltage or frequency.
The characteristic curves of these models have been measured using three-phase double pole 50 Hz motors, with water as a test medium, at a temperature of 20°C.

Advantages:

• Universally adaptable
• Unaffected by contamination of the fluid medium by magnetic particles
• Suitable for the transmission of viscous media

Some uses and applications:

• Salt water applications and aquaria
• Textile industry
• Cleaning processes
• Photographic development
• Electro-chemical industry