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Printed in USA. The information contained in this document includes concepts, methods, and apparatus which may be covered by U.S. Patents. Fann Instrument Company reserves the right to make improvements in design, construction, and appearance of our products without prior notice.
LPLT Filter Press Instruction Manual Introduction Fann’s Series 300 LPLT Filter Press is used for measuring filtration and wall- building properties of drilling fluids and cement slurries. The filtration rate is the fluid loss measured in milliliters at ambient temperature and 100 psi (690 kPa) through a special filter paper for 30 minutes.
LPLT Filter Press Instruction Manual Document Conventions The following icons are used in this manual. NOTE. Notes emphasize additional information that may be useful to the reader. CAUTION. Describes a situation or practice that requires operator awareness or action in order to avoid undesirable consequences. MANDATORY ACTION.
LPLT Filter Press Instruction Manual 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.
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LPLT Filter Press Instruction Manual 2.1.2 Pressure Regulators Maintain pressure regulators in good condition. Never use oil on pressure regulators. Pressurization systems that leak should be repaired or replaced. Gauges, fittings and hoses should be kept in good condition and leaks should be corrected.
LPLT Filter Press Instruction Manual Features and Specifications This filter press is used in a static filtration test to measure fluid loss and filter cake characteristics of drilling fluids. The basic filter press assembly consists of the filter press unit and accessories, listed in Section 10.
Keep the CO cartridges away from extreme heat. Fann Instrument Company offers an extended CO cartridge barrel kit (P/N 101758212). This kit consists of an extended barrel and a polyurethane ball. This extended barrel can accept CO cartridges that are longer than the standard cartridge, as well as standard cartridges.
LPLT Filter Press Instruction Manual Nitrogen Cylinder Pressure Source Follow this procedure to pressurize the filter press with a nitrogen cylinder. Refer to the assembly in Figure 10-4 which shows a filter press with a nitrogen regulator. 1. With the regulator adjusting screw backed out to the closed position (maximum outward), slowly open the pressure valve on the cylinder.
LPLT Filter Press Instruction Manual Dead-Weight Hydraulic Pressure Source The Dead-Weight Hydraulic Filter Press is a Series 300 Filter Press equipped with a dead-weight hydraulic assembly. See Figure 10-6. Follow this procedure to pressurize the filter press with the dead-weight hydraulic pressure source.
LPLT Filter Press Instruction Manual External Pressure Source A compressed air source that supplies more than 100 psi (690 kPa) is suitable to pressurize this filter press. A regulator is required. You can attach any regulator that meets the specific requirements for compressed air, nitrogen or carbon dioxide.
LPLT Filter Press Instruction Manual Installation The filter press can generally be arranged to suit the available space and the desires of the lab personnel, consistent with any established work processes. Consideration should be given to the location where samples are prepared and the cell is cleaned following test completion.
LPLT Filter Press Instruction Manual Standard Filter Press Test Procedures Follow this procedure to operate the filter press with a compressed gas or dead- weight hydraulic pressure source. 1. Assemble the clean, dry parts of the filter cell (Figure 6-1) in the following order: a) base cap b) rubber gasket...
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LPLT Filter Press Instruction Manual 9. Measure the volume of filtrate collected in the graduated cylinder. Record the volume in milliliters as the API 30 minute filtrate loss of the drilling fluid. 10. Loosen the T-screw, remove the cell top, and then remove the cell from the frame.
LPLT Filter Press Instruction Manual Test Analysis References API Recommended Practice for Field Testing Water Based Drilling Fluids, API RP 13B-1 API Recommended Practice for Field Testing Oil Based Drilling Fluids, API RP 13B-2 Results The fundamental filtration measurements include the filtrate volume and filter cake thickness.
Troubleshooting and regular maintenance procedures are described in this section. If more extensive maintenance or service of the instrument is required, please contact Fann Instrument Company. Cleaning After each use, disassemble and clean the filter press cell. Wash and thoroughly rinse all drilling fluid from the cell.
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LPLT Filter Press Instruction Manual 8.2.2 Replacing the seat and pin If regulator connections do not leak, the seat and pin probably need replacement. Use the following procedure. Refer to the items shown on Figure 8-1 and 8-2. 1. Using a wrench on the hex of the spring case, unscrew the spring case. All parts, including the diaphragm will remain in the spring case.
LPLT Filter Press Instruction Manual Dead Weight Hydraulic Unit Maintenance Always protect the stainless steel piston, especially when removing it. Clean the fine mesh screen on the bottom of the water reservoir. If the piston moves sluggishly during a test, remove the piston and O-ring from the cylinder.
LPLT Filter Press Instruction Manual Accessories This filter press does not have accessories. However, additional equipment is available that may be useful. Table 9-1 Optional Equipment Part Number Description 205868 Graduated Cylinder, 25 ml 206035 Timer, Interval, 30 minute 208312 Screen, Stainless Steel, cement tests, 60 x 325 mesh 208463 Clip with Bracket...
11.2 Returns For your protection, items being returned must be carefully packed to prevent damage in shipment and insured against possible damage or loss. Fann will not be responsible for damage resulting from careless or insufficient packing. Before returning items for any reason, authorization must be obtained from Fann Instrument Company.