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The handling of wet pulp samples presents a problem to every ore dressing and metallurgical laboratory. The use of proper size and type filters with required vacuum equipment will simply and efficiently eliminate many of the difficulties.
Necessary units for any capacity laboratory vacuum system are available and arrangements for individual or interdependent vacuum-pressure systems have been developed to meet the practical needs of research, commercial, and private laboratories.
The application of this unit and a suggested arrangement for its use is shown in the illustration above. Although one pump can be, and generally is, used for operating both vacuum and pressure filtering equipment; only one system or the other should be in operation at any one time.
This pump has a displacement of 3 to 4 cubic feet of free air per minute and will maintain a vacuum of 20 to 25 inches of mercury column or a pressure of 20 pounds per square inch.
This is sufficient for satisfactory operation of the Laboratory Vacuum Filter or the Laboratory Pressure Filter when using either one or the other of the systems in the arrangement illustrated.
The Laboratory Non-Lubricated Cylinder Vacuum-Pressure Pump is ideal for use as a small compressor or vacuum pump with a clean, oil-free discharge. As a compressor, piston displacement is from 8 to 11 cubic feet per minute; and as a vacuum pump, a vacuum of 27 inches of mercury can be maintained.
For laboratories requiring more free air displacement with higher pressures and vacuum, the Laboratory Piston Type Vacuum-Pressure Pump is an ideal unit. In addition to operating filters, pressure or vacuum may be required in connection with laboratory devices such as air lifts, agitators, and also for air cleaning of crushing equipment.
|PTFE Membrane Disc Filters, 25mm | Southern Labware||This chemical laboratory technique drawing depict gravity filtration of liquid through prepleated paper filter step-by-step. Put folded filter paper cone into glass filter funnel inserted into neck of conical Erlenmeyer flask.|
|Yobett Large Plastic 100ml Syringe +120cm (47in) handy plastic tubing||OFITE also manufactures other types of filter press units and inventories a full line of replacement and consumable parts. Stainless steel cases are available for most of the units.|
As much as 40 pounds pressure may be supplied by this pump, and piston displacement range is from 9 to 32 cubic feet per minute. A vacuum giving only 1 inch of mercury barometer can be maintained.
A piston type pump, when it is to be used for both pressure and vacuum, should be specified as a compressor.
Vacuum receivers and pressure tanks equipped with gauges and other accessory items are available. Recommended, compact, efficient, arrangement plans for your laboratory vacuum or vacuum-pressure system will be supplied on request.
Let us engineer a system to suit your needs. Mill samples and test pulps are quickly dewatered by means of a simple and easy process with the Vacuum Filter.
Two castings comprise the unit. The base has an opening for a vacuum connection, and the top casting holds the pulp. Most important of all, the filter medium is held tightly between the two castings merely by dowel pins, which eliminate the use of clamps or thumb screws. Calculations are greatly simplified by the filter area, which is one-half square foot.
Instead of running four or five tests each day it is often impossible to run more than one because of the difficulty of decanting and drying the products. The Laboratory Pressure Filter was designed to quickly filter various products.
By means of an ingenious arrangement of the yoke it is impossible to open the filter without first releasing the air pressure. The filter is made in three sizes, 6, 8 and 10 inch diameter.
It may be used for vacuum as well as pressure work. The 10 inch size can easily handle more than a bucket of pulp at one filtering operation.
Laboratory Pressure Counterbalanced Filter Diameter, 12 inches. Volume in gallons, 5. Shipping weight, pounds; net weight, pounds. Boxed dimensions, 19x36x37 inches.
A high-grade, smooth surface filter paper of close texture. A rapid filtering, crepe surface paper of open texture.Fisher Scientific is the UK's leading supplier of laboratory equipment, chemicals, and services used in scientific research, safety, healthcare, and education.
Sigma-Aldrich offers a range of laboratory filtration supplies including membrane filters, paper filters, filter funnels, syringe filters vacuum filtration supplies and more. Filter papers come in a broad range of glass fiber, qualitative and quantitative types for all needs. The success of any laboratory filtration depends upon the correct choice of filter paper.
The OFITE low pressure filter press design features a cell body to hold the mud sample, a pressure inlet, and a base cap with screen and filter paper. Suitable for field and laboratory use, these units have become the industry standard for low pressure/low temperature filtration testing. This filter paper is a calendared, hardened, qualitative low-ash filter paper used to filter fine precipitates with the following qualities: A very slow, extra dense paper made from % cotton linters. Due to the continuous development of our products, the goods supplied may vary in detail to that illustrated on our website.
Provides a complete portfolio of laboratory equipment, chemicals, supplies, and services used in scientific research, safety, healthcare, and education. Ordering info D Whatman paper (or equivalent) No 1x mm dia. medium grade. Pack of D Whatman paper (or equivalent) No 5x mm dia. medium grade.
Lab Filtration Grainger carries a large supply of lab filtration products, including laboratory filtration equipment, for use in your pharmaceutical, food and beverage, environmental or general lab. Find syringe filters that can improve analysis quality by removing particulates before the .