HyPrecision 50S/60S/75S Operator Manual 808690 27
1 – Terminology
Terminology
JIC
Joint Industry Council (JIC) fittings, a type of flare fitting used in fluid delivery applications. These fittings are
machined with a 37° flared seating surface and are composed of a fitting, a flare nut, and a sleeve.
kPa
A kilopascal (kPa) is a unit of pressure: 1 kPa equals 0.01 bar or 0.15 psi or 1,000 N/m
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lap
To rub a stainless steel surface against lapping paper to make the surface very smooth and flat
lock out tag out
Lock out tag out refers to specific practices and procedures that protect workers from the unexpected
energization or start up of machinery and equipment, or the release of hazardous energy during maintenance
or repair activities. Lock-out devices hold energy-isolation devices in a safe or “off” position and can not be
removed without a key or other unlocking mechanism, or through extraordinary means, such as bolt cutters.
Tag-out devices are prominent warning devices that an instructed person fastens to energy-isolating devices
to warn others not to reenergize the machine. Tags do not provide the physical restraint of a lock.
low-pressure water (CUTTING WATER IN)
Low-pressure water from a water softener, a reverse osmosis system, a well, or a public utility, that is
between the utility panel and the intensifier (refer to
prefilter water and postfilter water)
NPT
National pipe thread taper (NPT), a common United States standard for tapered threads that are used on
fittings and pipes
OEM
An original equipment manufacturer (OEM) of machines that are sold directly to end users
overstroke (fault)
An overstroke fault occurs when the hydraulic piston travels faster in 1 or both directions than the output
water flow of the waterjet pump can support
pierce-pressure mode
Water from the intensifier that is used to pierce the material to be cut. Using a reduced pressure prevents
brittle materials from cracking. Refer to
cut-pressure mode.
pipe
A rigid tube that carries low-pressure fluid
postfilter water
Low-pressure water that is between the filters and the intensifier
prefilter water
Low-pressure water that is between the utility panel and the water filters
psi
Pound-force per square inch (PSI) is a unit of pressure: 1 psi equals 0.07 bar or 6.89 kPa or 6,895 N/m
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reverse osmosis
A method for treating water by forcing it through a semipermeable membrane to remove impurities that can
damage high-pressure parts