time. Air volume - q m - (m 3 /s) Diameter - d m - (m) or alternatively. A proven way to reduce downtime and increase productivity on a variety of operations involving small parts where heat is a problem. The Gen4 Ionizing Point is effective for spot neutralization. /AD is .6 and the y-axis represents Kb. EXAIR’s Mini Reversible Drum Vac System delivers the same two-way action for small jobs. EXAIR's compressed air operated Reversible Drum Vac System attaches quickly to any closed head 30, 55 or 110 gallon drum. A 0 to 1 Dwyer manometer was used to measure the pressure
For standard air P v equals:
Custom sizes and materials available. EXAIR's Sanitary Flange Line Vac is the best way to convey materials in systems which require frequent or mandatory cleaning. Since the hose has “memory”, it will not creep or bend. Air consumption and noise are somewhat higher than the Gen4 Super Ion Air Knife. system, we see that the pressure gain for the first elbow is: 0.14 - 0.075 =
are the result of changes in direction and velocity of air
These applications will - due to browser restrictions - send data between your browser and our server. pressure increases 3-1/2 fold. Look up Fitting 3-6 in Appendix 2 -
3. Power Supplies are UL Listed to U.S. and Canadian safety standards, and are CE and RoHS compliant. Air Knife Plumbing Kits eliminate the need to search for the right fittings and ensure that your are using properly sized air supply lines. reflects the system effect of having an elbow close to the supply opening of a
You can also choose some of our most popular combinations already combined for your convenience. Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse! The EFC combines a photoelectric sensor with a timing control that limits compressed air use by turning it off when no part is present. Utilizing the Coanda effect, a basic principle of fluidics, Air Amplifiers become a simple, low cost way to circulate air, move smoke, fumes, and light materials. Larger heat loads requires large volumes of air resulting in huge oversized ducts and fans. A low cost, reliable, maintenance free solution to a variety of industrial spot cooling problems. Sum up the Component, Dynamic, and Frictional Pressure for
To calculate the airflow with an inlet pressure of 80 PSIG (5.5 BAR), the calculation is as follows: 15 SCFM x 0.8256 =
s system entry = Static Pressure at System Entry, P
2 = 0.13.
Make Shortcut to this Calculator on Your Home Screen. All Cabinet Coolers are UL Listed and CE compliant.
since there are no junctions or duct size changes. It is engineered to dramatically reduce compressed air usage while entraining ambient air at a ratio of 40:1. wg) = Pa / 249 Hazardous Location NEMA 4 Cabinet Cooler® Systems are available with a thermostat control or as a continuous operation system. wall is considered static. assumed to be 0. Hood Loss or look it up in the Hood S.P. Noise levels are greatly reduced when compared to other blowoffs. rates. How high air velocities greatly increase the pressure. Bullhead
-1.178. Hood. bullhead tee in Section 1, we can find the value of the coefficient, Kb, for the b side of the bullhead tee. EXAIR’s Adjustable E-Vacs are a series of low cost, compressed air powered vacuum generators where the vacuum and flow rates can be easily adjusted to suit the application requirements. Reducing the air pressure from 100 PSIG to 80 PSIG reduces energy use by almost 20%. With an optional pressure regulator, the air volume and velocity are infinitely adjustable over a wide range, for light to heavy duty applications. effect. slightly different than the value show above. P v = r(V/1097)2
Look up Fitting 3-6 in Appendix 2 -
The chart below can be used to estimate velocities in air ducts. state of rest or uniform motion unless compelled by another force to change
example we calculate the pressure losses for Section 1 to be -0.75 at the
Performance is the same as our standard Line Vac. on the x-axis where Qb /QD is .5 up to where it intersects the curve for which
Duct Cross-Sectional Area of the section. Note that the pressure loss of Section 1 is now greater
There are 7 models available for use with porous materials like cardboard, with vacuum levels up to 21" Hg (71 kPa) and vacuum flows up to 18.5 SCFM (524 SLPM). Online calculator to quickly determine Air Flow Rate through an Orifice. Air velocity can be calculated with the calculator below. Custom sizes and materials available. Darcy-Weisbach EquationP
loss/gain by increasing the flow rate or decreasing the duct size to increase
The Ultrasonic Leak Detector (ULD) is a hand-held, high quality instrument that can locate costly leaks in a compressed air system. around 1000 ft/min. Please read AddThis Privacy for more information. -1.206, 7. System Effect occurs in an air system when two or more
There is no change. Kits including a solenoid valve and thermostat are available to retrofit existing Cabinet Coolers which are operating continuously. coils, filters, or sound attenuators. It can be expressed in these terms: P t fan = P t loss + P v system outlet + (P s system outlet + P s system entry + P v system entry). Quiet, efficient Air Amplifiers will create output flows up to 25 times their consumption rate. A low cost, reliable way to cool and purge electronic control panels. You can target the Engineering ToolBox by using AdWords Managed Placements. duct. Result will be displayed. Sizes from 3/8" to 5" are available. Duct Type/Area. (2HW)/(H+W). Cross-Sectional Area A = 10 x 36/144 = 2.5 ft2, Velocity Pressure = Pv1 = (V/4005)2 = (1600/4005)
-Kb * Pv2 =
We don't collect information from our users. Designed for tough industrial environments, the hardened alloy construction resists premature wear while the increased power handles difficult jobs and harsh conditions. How high air velocities greatly increase the pressure. Assume a 3 piece elbow. v = Velocity PressureP s = Static Pressure, For Supply:P s fan = P t loss - P v discharge, P
Accessory-Universal Air Knife Mounting System. To find the dynamic coefficient we calculate: q/2 = tan -1(2/6) = 18o Therefore: q = 36 o, P trans1 = C0Pv1 = (0.05)(0.055) = 0.003, 10x 16 Rectangular to 14 Round Transition. Standard Air Density, .075 lb/cu ft, is used for most HVAC
Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse!
Dynamic losses are proportional to dynamic pressure and can be calculated using
Each of these systems include a water-dirt filter separator to prevent water condensate and dirt from entering your enclosure and a cold air distribution kit used to direct the air for circulation or on to hot spots.
The Threaded Line Vac attaches easily to plumbing pipe couplers, making it easy to build a complete system using ordinary pipe and fittings available from any home center, hardware store or plumbers supply. EXAIR's compressed air operated High Lift Chip Trapper System attaches quickly to the closed head 30, 55 or 110 gallon drum. ). EXAIR's Model 9500-60 60 Gallon Receiver Tank can be installed near the point of high demand so there is an additional supply of compressed air available for a short duration. All Cabinet Coolers are UL Classified and CE compliant. Heavy Duty Safety Air Gun and Accessories. No moving parts or CFC’s assures maintenance free operation. Section 2 would pull more than 1800 CFM. Flow Rate. air system. The system effect of having 2 elbows close to each other. Sum up the pressure losses for all of the sections. effect coefficient (K). This general rule is used to derive what is called the Fan
3400 CFM to 3000 CFM. The compact Cabinet Cooler can be installed in minutes through a standard electrical knockout. In this
Available for measuring air flow in SCFM or m³/hr. pressure loss incurred by such a configuration, consider two elements at a
Pressure which can handle a certain flow rate.
0.12. ASHRAE Fittings. A low cost solution to a wide variety of industrial housekeeping problems. The Mini Cooler is particularly effective on high speed operations to prevent burning, melting and heat related breakage. velocity between 900 and 1000 ft/min. shown below: P t loss = P t loss 2 + P t loss 3 = -1.192 -0.014 =
Chip Shields are also great for keeping coolant from spreading everywhere during drying operations. succession. This is a
section: 1. Write down or calculate all known variables. air system. the section. The diagrams below show system effect factors for straight
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The Gen4 Ion Air Jet is the ideal way to remove static and dust from small parts prior to shrink wrapping, packaging, printing, painting or finishing. Each of these systems will include a water-dirt filter separator to prevent water condensate and dirt from entering your enclosure and cold air distribution kit used to direct the air for circulation or on to hot spots. Side Mount Kits for NEMA 12 Cabinet Cooler Systems have an aluminum construction. P
Air velocity in a ventilation duct can be calculated in imperial units as, = 144 qi / (ai bi) (1), The velocity in a 12 inch duct with air flow 1000 cfm can be calculated as.
Equation (1) expressed in imperial units: L = Q / (1.08 (th - tr)) (2).
Calculate the pressure loss/gain associated with each
The chart below can be used to estimate velocities in air ducts. Use ASHRAE fitting 4-6 in Appendix 2 – ASHRAE
Using the Fan Laws to calculate the new total
Choose 2 outlet or 4 outlet model. The air flow should be in the range 1-3 times the room volume. A hardened alloy construction resists wear from abrasive scrap, trim and other bulk materials. The dynamic coefficient C0 = 1.3, Pelbow1 = - Pv1 = -(1.3)*(0.16) = -0.208. EXAIR’s Light Duty Line Vac is the ideal way to convey small volumes of materials over short distances. W: Required Field. They are available in many cooling capacities for large and small control panels. H f is defined as:H f = aVb / QcV = Velocity through the duct
Write down or calculate all pressure losses in the section. Correct placement of the blowing angle can help optimize performance, reduce noise levels and improve efficiency.