6 calculators in this category.
Duct Total Effective Length Calculator Combine straight lengths and documented fitting allowances to total a duct route’s effective length. Available Static Pressure and Friction Budget Subtract component losses from available pressure and use route length to find the friction budget. Duct Pressure Drop Calculator Enter duct dimensions, airflow, and length to estimate friction and documented fitting pressure losses. Filter and Damper Pressure Drop Calculator Apply matched filter or damper data to airflow to estimate pressure drop and budget margin. Duct Static Regain Calculator Use upstream and downstream air speeds, density, and total-pressure loss to calculate net static pressure change. Total External Static Pressure (TESP) Calculator Combine supply and return static readings to find TESP and compare an entered equipment rating.