H301/302 HSR Compressors | Rev. 2.2 | 83
An example of an electronic no flow device (ENFD) is DNFT
®
.
Examples of mechanical no flow devices (MNFD) that are used are Kenco
®
and
Lincoln
®
.
install Kenco NFS-3 No-Flow Switch
FiguRe 17
Kenco NFS-3 No-Flow Switch
Switch MUST be mounted either vertically (terminal end up)
or at a minimum angle of 20 º off horizontal with terminal
end at the high point. This prevents water from accumulating
around switch contact.
Complies with ANSI Z535, ISO 3864, OSHA 1910.145 (f) (9)
1.
A 25 micron sintered bronze or similar in-line type filter should be installed
ahead of the No- Flow switch. These are available from either KENCO or most
manufacturers of lubricators.
2. o assure constant oil viscosity, mount switch in a warm place near cylinder
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