water hammer
4 in-depth engineering guides on water hammer — specification, selection, testing and procurement.
Everything on water hammer
Vajra's engineering team has published 4 technical guides covering water hammer for industrial valve selection, specification, testing and procurement. Browse the full set below.
Non-Slam Check Valves: Preventing Water Hammer and Reverse-Flow Damage
Check valve slam is a leading cause of pipeline shock, ruptured joints, and damaged pumps. This guide explains the physics of slam and how non-slam check valve designs are selected using the valve's dynamic closing characteristic.
Check Valve Chattering and Water Hammer: Root Causes and Solutions
Check valve chattering and slamming are symptoms of the same problem: the disc is not staying open or not closing gradually. Left unaddressed, chattering destroys the disc, generates water hammer, and can crack pipework.
Check Valve Types - Swing, Dual Plate, Piston, Ball: How to Choose
Check valves (non-return valves) prevent backflow - but choosing the wrong check valve type leads to water hammer, premature wear, or nuisance reverse flow. Swing, dual plate, piston, ball, and tilting disc check valves each have different closure speeds, pressure drop characteristics, and suitability for different services. This guide explains the differences and how to select correctly.
Check Valve Types: Swing, Dual Plate, Lift, Tilting Disc & Wafer - Complete Guide
Check valves (non-return valves) are the only self-acting valve type in industrial piping - they open on forward flow and close automatically when flow stops or reverses, protecting pumps, compressors, and pipelines from reverse flow damage. Selecting the right check valve type is critical to prevent water hammer, excessive pressure drop, and premature failure.
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