How to Tell If a Ball Valve Is Open or Closed: Position Indicator Guide
Learn how to determine whether a ball valve is open or closed by checking handle alignment, stem-slot direction, gear-operator indicators, actuator feedback, and valve documentation. The guide explains common causes of position misjudgment, why handle position alone can be misleading after maintenance or reassembly, and how clear marking, lockable handles, operator training, and reliable position indication improve safe valve operation and isolation.
Soft Seat vs Metal Seat Ball Valve Explained
Compare soft-seated and metal-seated ball valves by sealing performance, temperature capability, media compatibility, operating torque, service life, and cost. Soft seats such as PTFE, RPTFE, and PEEK provide bubble-tight shutoff and low torque for clean, moderate-temperature fluids, while metal seats with hardened coatings are better suited to high-temperature, abrasive, corrosive, fire-safe, and severe-service applications.
Ball Valves: Types, Uses & Buying Guide for Industrial & Home Applications
Quick Summary When it comes to controlling the flow of liquids, gases, or even solids in pipelines, ball valves stand out as one of the most reliable and versatile mechanical devices. A typical ball valve operates with a 90-degree handle rotation to open or close, aligning or blocking a ball-shaped disc’s hole with the flow path. This […]
Floating vs Trunnion Ball Valve: What’s the Difference?
Compare floating and trunnion ball valves by structure, pressure capability, sealing principle, operating torque, size range, applications, cost, and buyer selection requirements.