LPLT Filter Press Instruction Manual
207128
Revision G, September 2012
8
2
Safety
Safe operation of filter presses requires that the laboratory technician or drilling
fluids engineer be familiar with the proper operation and potential hazards
associated with this equipment. For instance, if the filter cell or pressurization
equipment has a leak, then sample or pressurizing fluid could be released and cause
serious injury.
Several precautions that should be observed are described in this section.
2.1
Safe Pressurization
2.1.1 Gases
Always use nitrogen, carbon dioxide (CO
2
), or compressed air. Never connect
the LPLT Filter Press to oxygen, natural gas, or any other non-recommended
gas.
Compressed oxygen should not be used as a pressure source.
Fire and explosion hazards exist when using oxygen.
Nitrogen must be supplied from an approved nitrogen gas cylinder. Nitrogen
cylinders must be secured and meet all safety standards.
Carbon dioxide is normally supplied in small cartridges, which contain about
900 psi (6205 kPa) pressure. They are primarily used for field operations.
Do
NOT
allow carbon dioxide cartridges to be heated or exposed
to fire. They can explode if overheated.
If compressed air is used, its maximum pressure should not exceed 150 psi
(1035 kPa) at the regulator inlet.
