| Appliance Gas Pipe Flow Rate Capacities |
| Piping for natural gas appliances should be of adequate size and installed so that it provides a supply of gas sufficient to meet the maximum demand without undue loss of pressure between the point of supply (the meter) and the appliance. |
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| Flow Rate of Steam Schedule 40 Pipe |
| Flow Rate of Steam in Schedule 40 Pipe Tables - Many heating systems for large industrial buildings use high pressure steam (15 to 150 psig). These systems usually have unit heaters or large built-up fan units with blast heating coils. |
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| Allowable Stresses for Pipe and Tube B36.10M |
| Steel pipe is manufactured by several processes. Seamless pipe (Type S), made by piercing or extruding, has no longitudinal seam. Other manufacturing methods roll a strip or sheet of steel (skelp) into a cylinder and weld a longitudinal seam. |
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| Pipe Support Hanger Spacing and Pipe Wall Thickness |
| Table 1.0 suggests minimum pipe hanger spacing for use unless exceeded by the local authority having jurisdiction or engineering calculations. The primary factors determining pipe wall thickness are hoop stress caused by internal pressure, and longitudinal stresses caused by pressure, weight, and other sustained loads. |
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| Air Leakage Rates for Typical Home Components |
| Fan pressurization measures a building’s leakage behavior that ideally varies little with time and weather conditions. In reality, unless wind and temperature differences during the measurement period are sufficiently mild, pressure differences induced by weather during the blower door test cause measurement errors |
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| Flash Point Liquids, Gases, Vapors and Solvents |
| A flammable liquid’s vapor pressure and volatility or rate of evaporation determine its ability to form an explosive mixture. These properties can be expressed by the flash point, which is the temperature to which a flammable liquid must be heated to produce a flash when a small flame is passed across the surface of the liquid. |
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| Pex (Cross-Linked Polyethylene) Specifications |
| PEX is a polymeric material formed by the chemical joining of individual polyethylene molecules in a process called crosslinking. Crosslinking alters the performance of the original polyethylene polymer improving several key properties. |
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| Selecting the Right Fan or Blower for Your Application |
| Sizing of fans and blowers is similar in process to that of pumps, where graphs are commonly used. The performance graph is usually a constant-speed plot with capacity on the X axis and a variety of performance factors on the Y axis. As part of the selection process, a graph of the system is also generated, with capacity as the X axis and head (energy loss in the system) on the Y axis. |
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