Rotary Lobe Pumps – Features

 Bellin Rotary Lobe Pumps type “PL” have following features:

–  Compact construction: space saving;

–  Self-priming up to 7-8 mt.;

–  Dry running for short periods;

–  Reversible operation;

–  Easy maintenance – maintenance and cleaning on site: fast opening of the pump because of the possibility of removal of the front inspection cover without disturbing the pump housing or pipe work;

–   Pump housing can be supplied with hard metal replaceable wearing plates at front and rear; they can be replaced easily on site;

–   Possibility to handle large solids particle up to 25 – 30 mm.

 lobe



 

EXECUTION

PUMP HOUSING: in grey cast iron (type PLG)

  • with replaceable hard metal wearing front plates (PLGP);
  • with replaceable hard metal wearing front-radial plates (PLGR);
  • oenologic execution (PLWXF) food-grade alloy pump housing with stainless steel plates.

LOBES: covered with

  • NBR rubber
  • EPDM rubber
  • FPM rubber
  • Other on request;

MECHANICAL SEAL: ceramic or tungsten carbide self-lubrificated (PLG, PLGP) – replaced on-site without disassembly of the pump housing and piping (Easy Maintenance) for execution PLGRH;

CONNECTIONS:

  • flange according to UNI/DIN – ANSI
  • oenological type “garolla” – DIN – SMS – ball joints
  • other on request.

OPTIONAL HARD METAL WEARING RADIAL PLATES

 

Piastre radiali

 


N_PLGRH 1500_GB

”HELICAL” LOBES (4 wings)

 

Features:

  • Low pulsation design
  • Possibility of a higher speed of rotation for better volumetric efficiency
  • Low noise
  • Reduced vibrations in piping
  • Self-priming up to 6-7 mt
  • Reversible operation

For more details please contact our sales offices


 

OPERATING PRINCIPLE

Bellin Rotary Lobe Pumps type “PL” are of the positive displacement pumps type; the two counter-rotating rubber lobes are synchronised.

The product is displaced in the direction of the volume flow into the discharge side.