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Gate vs Globe vs Ball vs Butterfly Valve – Key Differences and Selection Guide

01/05/2026

Compare Gate, Globe, Ball, and Butterfly Valves in terms of structure, working principle, advantages, and applications. Learn how to choose the right valve for your system.

How to Read Industrial Valve Markings | ANSI, DIN, JIS Complete Guide

15/04/2026

Learn how to read industrial valve markings including ANSI, DIN, JIS standards, material, pressure rating, and valve types. Helps engineers select valves correctly and safely.

ANSI B16.5 Flange Standard Chart | Detailed Class 150–2500 Dimensions

15/04/2026

The ANSI B16.5 flange standard chart provides detailed specifications from Class 150 to Class 2500. It summarizes dimensions, pressure ratings, and applications in industrial piping systems.

Gate Valve Working Principle – Operation and Application Guide

01/05/2026

Learn the working principle of a gate valve, how it operates, and where it is used. Complete guide for water, steam, oil, and industrial systems.

Check Valve Working Principle – Automatic Backflow Prevention Explained

01/05/2026

Learn the working principle of a check valve, including its structure, types, and applications in water, steam, air, oil, and industrial systems.

Butterfly Valve Working Principle – Fast and Efficient Flow Control Mechanism

01/05/2026

Learn the working principle of a butterfly valve, including structure, operation, types, and applications in water, HVAC, fire protection, and industrial systems.

What Is a Knife Gate Valve? Structure, Working Principle & Types

03/05/2026

Learn what a knife gate valve is, its structure, working principle, and applications in wastewater, slurry, chemical, and industrial systems.

What Is a Control Valve? Structure, Working Principle & Types

03/05/2026

Learn what a control valve is, its structure, working principle, and types for steam, water, air, oil, and chemical systems.

What Is a Pressure Reducing Valve (PRV)? Structure, Working Principle & Types

03/05/2026

Learn what a pressure reducing valve (PRV) is, its structure, working principle, and types for steam, water, air, oil, and chemical systems.

What Is a Safety Valve? Structure, Working Principle & Detailed Classification

03/05/2026

Learn what a safety valve is, its structure, working principle, and types for steam, water, air, oil, and chemical systems. Detailed selection guide included.

What Is a Check Valve? Structure, Working Principle and Types of Check Valves

01/05/2026

Learn what a check valve is, its structure, working principle, and common types. Complete guide to selecting check valves for water, steam, air, oil, and chemical systems.

What Is a Butterfly Valve? Structure, Working Principle and Applications

20/04/2026

Learn what a butterfly valve is, including its structure, working principle, types, and industrial applications. Get expert butterfly valve solutions from PM-E.VN.