Raasm Series 1120-AB 1.1/2″ 480 l/min Aluminium Diaphragm Pumps

These diaphragm pumps made of die-cast aluminium ensure lasting and reliable operation pumping a wide range of fluids, including high viscosities and containing suspended solids.  They can also be used for heavy applications in places with high humidity or a potentially explosive atmosphere due to being ATEX certified.


* With a PTFE membrane the flow rate is 10% lower

** Displacement per cycle may be influenced by suction lift, fluid viscosity, air pressure or number of cycles per minute

*** The materials in contact with the fluid can restrict the pump working temperature

Series 1120-AB
Membranes Balls Seats Part No.
EPDM Acetal Acetal 3C1/40111EAA
Hytrel® Hytrel® Hytrel® 3C1/40111HHH
NBR Hytrel® Hytrel® 3C1/40111NHH
Santoprene™ Santoprene™ Santoprene™ 3C1/40111SSS
PTFE + Hytrel® PTFE Polypropylene 3C1/40111TTP
Maximum pressure 8 bar
Maximum cycles 220 cpm
Litres per cycle ** 2.15 litres
Maximum suction lift dry column – 5mtr / wet column – 7.5mtr
Maximum size pumpable solids 5.5mm
Maximum working temperature *** 100ºC
Noise level 78 dB
Maximum air consumption 3.40 m³/min
Air working pressure 2-6 bar
Air inlet connection F ¾” G BSP
Air outlet connection (muffler) F 1″ G BSP
Fluid inlet connection F 2″ G BSP
Fluid outlet connection F 1.½” G BSP
Overall dimensions (A x B x C x D x E) 350 x 402 x 514 x 250 x 182mm
Screws for pump fixing M12
Packing / Weight 1 box – 0.07m³ / 21.5kg

Curve Data




Please complete the details below and then press Send

Your Name (required)

Your Email (required)


Your Message