MTS Model 286-30 Pore Pressure Intensifier - Manual (Page 22)

286.30 Pressure Intensifier 22
High Pressure Precaution
Operation
High Pressure Precaution
Pore fluid can attain very high pressures. High pressure fluid can cause
severe injury or death.
Ensure pressure gage reads zero before opening the Pore Fluid Output valve.
Follow all procedures provided by this manual.
The Model 286.30 Pore Pressure Intensifier is capable of producing very high
pressures. If mishandled or improperly adjusted, it is capable of seriously
injuring and/or killing personnel, damaging itself, and damaging surrounding
equipment. If care is taken however, the unit can provide prolonged service
without incidents.
High Temperature Precaution
Temperature of fluid in the triaxial cell can exceed the temperature rating of
the Pore Pressure Intensifier. This could damage the Pore Pressure
Intensifier.
Temperature will increase when applying pressure. So if heated to maximum
temperature before pressure is applied, increasing pressure too fast can cause
the temperature to increase to a point where it can damage the equipment;
primarily the transducers.
Also allow fluid in the triaxial cell to cool to 75 °C (167 °F) or less before emptying
the triaxial cell back to the reservoir of the Pore Pressure Intensifier.
The Model 286.30 Pore Pressure Intensifier has a temperature rating of 75
°
C
(167
°
F). Many triaxial cells have higher temperature ratings. Therefore, the
Pore fluid in the triaxial cell must be allowed to cool to 75
°
C (167
°
F), or below,
before being recirculated into the Pore Pressure Intensifier. If fluid having a
temperature higher than 75
°
C (167
°
F) is allowed to circulate into the PPI, the
acrylic reservoir and associated flexible tubing can be damaged.
WARNING
CAUTION