Check Valve Selection for Variable-Speed Pumps: Minimum Flow and Disc Stability
Check Valve Selection for Variable-Speed Pumps: Minimum Flow and Disc Stability Quick Summary: Check valve selection for variable-speed pumps must cover the lowest sustained flow through each valve, not only the design flow or pipe size. Ask for the manufacturer’s stable-opening limits, pressure-loss data and closure characteristics for the proposed configuration. Pump minimum flow, valve […]
Valve Actuator Torque Sizing: Break Torque, Running Torque and Safety Factor
Learn how to size valve actuators using break torque, running torque, seating torque, safety factor, minimum air pressure, spring-return output, electric actuator limits and MAST.
A Complete Guide on Valve Installation: Butterfly Valve Bolt Chart and Best Practices
Learn the essential steps for correct butterfly valve installation, including valve sizing, flange alignment, bolt selection, controlled tightening, gasket and seat protection, and post-installation leak testing. The guide explains how proper installation practices help prevent leakage, flange damage, valve-body distortion, premature seal failure, and unnecessary maintenance.