Section 2
Installation
20479262
9-2010/Rev 02
2-6
Cutting water supply piping must be sized to meet the flow and pressure requirements listed in
Section 10. Only PVC, copper or rubber hose should be used between the cutting water source
and the machine.
The inlet cutting water must be maintained at a minimum pressure of 35 psi (2 bar) at all times.
If the facility water pressure is below, or can fall below 35 psi (2 bar), a water pressure booster
pump is required.
Drain
Cutting water released through the safety dump valve when the emergency stop button is initiated
is discharged from the drain port. The discharge is considered wastewater and must be piped to
an appropriate location, i.e. a sewer line. The volume of water released will be minimal and does
not require high pressure plumbing; however, piping must comply with local, regional and
national codes.
Plant Air
The facility compressed air connection should provide clean, dry air regulated to 85 psi (5.9 bar).
Air usage is minimal, normally less than 1 scf/m.
The following table provides specifications for each ISO air quality classification. KMT
recommends adherence to Quality Class 4.
Table 2-5
ISO Air Quality Classifications
ISO Quality
Class
Maximum
Particle Size
(microns)
Maximum Pressure
Dew Point
(water @ 100 psi)
Maximum Oil Content
(Mg/m
3
)
1 0.1 -94° F (-60° C) 0.01
2 1 -40° F (-40° C) 0.1
3 5 -4° F (-20° C) 1
4 15 +38° F (+3° C) 5
5 40 +45° F (+7° C) 25
6 -- +50° F (+10° C) --
Contaminated Waste Drain
Oil and water that can accumulate on the drip pan is disposed of through the contaminated waste
drain. This oil and water mixture is considered contaminated and disposal must comply with
local, regional and national codes. The volume of waste will be minimal and can be collected in a
container of some appropriate type.
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