KNF N 143 AN.12 E, Инструкция по эксплуатации и установке

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Diaphragm Pumps N 143/186.12 Use
Translation of original Operating and Installation Instructions, english, KNF 121610-121613 07/16 3
2. Use
2.1. Proper use
The pumps are exclusively intended for transferring gases and
vapors.
Owner's responsibility
Only install and operate the pumps under the operating parameters
and conditions described in chapter 4, Technical data.
Protect the compressors with a pressure relief device between the
pressure side of the compressor and the first shut-off valve.
Only complete pumps may be taken into service.
Make sure that the installation location is dry and the pump is
protected against rain, splash, hose and drip water.
The gas-tightness of the connections between the application
pipes and the pump (or the pump connection) must be checked
regularly; with leaky connections, there is a danger that hazardous
gases or vapors may escape from the pump system.
Before using a medium, check whether the medium can be trans-
ferred danger-free in the specific application case.
Before using a medium, check the compatibility of the materials of
the pump head, diaphragm and valves with the medium.
Danger of dangerous gas mixtures during operation of the pump if
the working diaphragm ruptures: Depending on the medium being
pumped, a rupture of the working diaphragm may produce a poten-
tially dangerous mixture when the medium mixes with the air in the
innerspace between the working diaphragm and the safety dia-
phragm.

Evacuate the innerspace between the working diaphragm
and the safety diaphragm (see position 5 in Fig. 4, p. 12)
through the two holes in the pump head. At two-headed
pumps this is applicable for both pump heads.

KNF recommends monitoring the pressure of the evacuat-
ed innerspace between the working diaphragm and the
safety diaphragm. Immediately stop the pump if the pres-
sure becomes elevated.

Immediately stop the pump if the working diaphragm rup-
tures. The working diaphragm and the safety diaphragm
must be replaced before continuing with operation (see
chapter 8, Maintenance).

If pressure or flow rate change without apparent reason,
immediately switch off the pump and check for damages.
Only transfer gases which remain stable under the pressures and
temperatures occurring in the pump.
Operating parameters and
conditions
Requirements for
transferred medium