Download
1 / 26
260 likes | 569 Views
Accessories. Fluid Handling Training. 300 Level. Accessories- Material Filters. When using an extrusion gun (e.g. dispensing a bead) it is typically not necessary to filter the product if application tip diameters are large enough. Accessories- Material Filters Airless Spraying.
E N D
Accessories Fluid Handling Training 300 Level
Accessories- Material Filters When using an extrusion gun (e.g. dispensing a bead) it is typically not necessary to filter the product if application tip diameters are large enough.
Accessories- Material FiltersAirless Spraying Airless spraying is based on the application of pressure to a fluid with a high-pressure pump.The high-pressure fluid is directed trough a small orifice. As the material exists the orifice and goes to ambient pressure, the material rapidly expands and breaks into fine particles, a process commonly referred to as “atomization”. The size of the spray orifice determines the amount of fluid filtration required. Impurities, dried particles and other particles that are larger than the orifice will plug its opening. Therefore most spray systems require some degree of fluid filtration. • Make sure to select a filter with an orifice smaller than • the diameter of the tip orifice. • Select a large filtering surface if flow rate is important • this will reduce cleaning frequency.
Accessories- Material FiltersChoosing the right Filter • It is necessary to balance the appropriate size spray tip with the proper meshed • fluid filter: • To avoid lost production due to clogging and cleaning of spray tips. • To avoid damaging or changing the material and its characteristics by having • too fine of filtration. • To minimize material pressure drop over the filter(finer filter has more pressure loss • than a more coarse filter element). • To reduce the plugging of the filter(the finer the screen the more quickly it plug). • High pressure can cause a plugged filter screen to collapse or break in some instance. • To reduce the required frequency of filter cleaning or replacement. • When filtering a material the filter must be continuously maintained to be effective
Accessories- Material FiltersTypical Installation Where is the Material Filter!
Accessories- Material FiltersARO Filters Range See Page 68 Piston Pumps
Accessories- Follower Plates The follower plates are used with the single or two post ram, is designed to provide positive priming pressure for pumping high viscosity materials. It also isolates the material in the drum from air while the drum is emptied, simultaneously protecting the material from outside contaminants.As the material is evacuated from the drum, the plate cleans the sides of the drum and minimises any material waste at the bottom of the drum. As material viscosity increases the amount of flow from a pump decreases. Single & Two post rams with follower plates are recommended when viscosities are higher than 3000 cPs. Follower Plates should be considered with any material that does not easily seek its own level in a drum. Usually we use follower plates with flat wiper seals with viscosities up to 25,000cPs. Over these viscosities we advise the use of double flat wipers or double “Tube type” wipers
Follower Plate Adapter for “A” Mounting Accessories- Follower PlatesOur Range for 20-30 liters Wiper Material Material Mounting Footprint Mounting footprint is strictly a reference letter used to simplify the matching of pumps to follower plates and related accessories. • Carbon Steel • Stainless Steel • Nitrile • Polyurethane • EPR • Polyethylene/Urethane • A-B-C-D • Carefully when Selecting!
Accessories- Follower PlatesOur Range for 200 liters Wiper Material Material Mounting Footprint Mounting footprint is strictly a reference letter used to simplify the matching of pumps to follower plates and related accessories. • Carbon Steel • Aluminium • Aluminium • Teflon/Coated • Nitrile • Polyurethane • EPR • Polyethylene/Urethane • Viton • A-B- • Be careful when Selecting!
Accessories- Lifts & Rams Selection IR/ARO single and two post rams are designed to make easy and quick replacement of pails and drums by the lifting of the pump. The use of rams with follower plates improves pumping results by exerting a continuous and modulating pressure on the surface of the pumped material. • Single rams will have a maximum thrust of 240 daN • Two post Rams standard 480 daN • Two post rams Extra Heavy-Duty 700 daN To pump 3000 to 25 000cPs material To pump 3000 to 300 000cPs material To pump 3000 to 1 000 000cPs material • daN= decaNewton
Accessories- Fluid Regulators Downstream ARO IDL= Improved Design Line Fluid Pressure outlet Regulated Fluid Pressure Inlet Non Regulated
Accessories- Fluid Regulators Downstream ARO Fluid Pressure Regulators are used to reduce the fluid pressure delivered from a pump. Regulators are designed to deliver constant fluid pressure based upon the inputs or setting of the regulator. Fluid regulators should be placed as close as possible to the point of application. Fluid filtration placed before the fluid regulator will protect it from contamination. Fluid regulators can be controlled remotely through a pneumatic signal or manually. The ARO I.D.L. Fluid Regulator features smooth consistent pressure regulation with easy-turn adjustment. Patented easy-access seat plug permits immediate service access to the regulator’s ball and seat. Patented “floating” ball and seat design maintains proper regulation, even during significant fluctuations in line pressure.
Downstream ARO Accessories- Fluid RegulatorsHow does it work! • The fluid regulator closes and stops fluid flow when the pressure in the hose downstream of the • regulator is greater than the set regulator pressure (in free flow situation with no back pressure • the regulator will not work. • The input fluid pressure should be approximately 40% higher than the regulated pressure. • For good control in a pneumatic regulated system a stable air supply is required. • Fluid supply pulsation should be minimised to help assure good regulator function.
The understand on how to use all these accessories and why these for each particular application.
Accessories- Pulsation Dampeners Are used to control and minimise the pulsation that result from a pressurised system’s stroking action. They increase system efficiency, performance, and pump life; decrease maintenance costs and down-time; and protect pipes, meters, valves and instrumentation from pulsation, vibration, and hydraulic shock. Most pulsation dampeners use a bladder or bellows to separate the process fluid from a compressible gas. During the pump’s discharge stroke, fluid pressure displaces the bladder or bellows and compresses the trapped gas. During the following cycle, the momentary interruption of fluid flow causes the compressed gas to expand, forcing the bladder or bellows to push the accumulated fluid back into the discharge line.
Accessories- Pulsation DampenersCaution! The Most Important! Results! When not respecting the warning! Air must be supplied to the Air tamer before applying any Fluid Pressure
Accessories- Air Control Needle Valves A Small Economical device that controls, over-runs of Diaphragm pumps, Piston Pumps, allows you to calibrate the pump speed and air consumption.
