Diaphragm liquid pump NF 2.35
Installation and connection
KNF Flodos AG BA_NF2-35_EN_02_164912
Translation of original Operating and Installation Instructions
11
6.2. Hydraulic connection
➔
Only connect components to the pump that are designed to
handle the hydraulic data of the pump (see
Chapter 4, Technical data).
➔
Only use hoses that are suitable for the maximum possible
operating pressure and the maximum possible operating tem-
perature of the liquids to be transferred.
➔
Only use hoses that are sufficiently chemically resistant to the
liquids being pumped.
6.2.1. Connecting the pump
Arrows on the pump head indicate the flow direction.
Remove the protective caps from the connections.
Connect the suction and pressure lines. (See Installing the
plug-in coupling on the next page)
Keep the suction line as short as possible in order to facilitate
the priming process.
Check that the hoses and transition joints are fitted correctly
and securely.
Check that the system is leak-tight.
WARNING
The bursting of unprotected parts of the system
may cause fatal injury.
The pump has no built-in pressure limitation. When
the pump is transferring liquids in closed systems,
the pressure can increase to a very high level, and
this may result in the bursting of pressure vessels,
pipes or other parts of the system.
The pump will be permanently damaged if operated
against pressures which exceed those stated in the
technical data.
➔
It is essential to protect any system in which the
pump is installed against overpressure by means
of a suitable safety device.
One means of preventing excessive pressure and the
inherent dangers thereof is to place a bypass line with a
pressure relief valve between the pressure and suction
sides of the pump. For further information, contact your
KNF technical adviser (for contact details, see last page).
Connected
components
Hoses
Protect against overpressure
