Watson-Marlow APEX10 - Manual (Page 19)

DESCRIPTION
19
4.4.2 Hose compression force adjustment
The compression force on the pump hose can be
adjusted by installing a rotor with a different dimension
between the tips of the integral pressing shoes. The
rotor is chosen to achieve an optimal life of the pump
hose for the intended use of the hose pump. Each hose
size (10, 15 or 20 mm inner diameter) has its own low-
pressure and medium-pressure rotors. This means
there are six types of rotors available. If you want to
change the application of your hose pump or if you want
to change the hose size, contact your Bredel
representative.
Low-pressure and medium-pressure rotors can be
recognized by a marked hole near the “L” for “Low-
pressure” (B) or near the “M” for “Medium-pressure” (A)
on the rotor.
4.4.3 Lubrication and cooling
The pumphead is filled with Bredel Genuine Hose
Lubricant. This lubricant lubricates the shoes and
dissipates the heat generated by the movement of the
pressing shoes against the pump hose.
The lubricant is food grade. The user is responsible to
ensure the chemical compatibility of the lubricant with
the fluid to be pumped. Refer to §
11.1.4 for the
required quantity and NSF registration.
Refer to §
7.5 for the consequences of a hose failure.
A
B
Consult your Bredel representative for
lubrication recommendations when
operating the hose pump below 2 rpm.