March 2026

CA-FIRE Technical Guide · AFFF Series What Is Aqueous Film Forming Foam (AFFF)? A Complete Technical Guide How AFFF works, what makes it effective on Class B fires, its technical specifications, system compatibility, limitations and how it compares to other foam types — everything in one place. 🕐 11 min read 📅 Updated March 2025 […]

CA-FIRE Technical Guide · System Maintenance Foam Concentrate Storage & Shelf Life: The Complete Maintenance Guide How to store foam concentrate correctly, how long each type lasts, what annual testing requires, and how to identify concentrate that has degraded beyond use — for all six foam types. 🕐 10 min read 📅 Updated March 2025

CA-FIRE Technical Guide · High Expansion Foam High Expansion Foam Systems: Design, NFPA 11 Requirements & Applications A complete engineering guide to high expansion foam — how it works, NFPA 11 design requirements, fill time calculations, protected space types and concentrate selection (YEG-3 / YEG-6). 🕐 13 min read 📅 Updated March 2025 ✍️ CA-FIRE

CA-FIRE Technical Guide · AFFF Selection AFFF Foam Concentrate 3% vs 6%: Which Mixing Ratio Do You Need? Everything a system designer, procurement officer or fire safety manager needs to know before ordering AFFF — from how mixing ratio affects system performance to the exact technical differences between S-3-AB and S-6-AB. 🕐 9 min read

CA-FIRE Technical Guide · Foam Concentrate Series Types of Foam Concentrate: AFFF vs AR-AFFF vs FFFP vs High Expansion A complete comparison of the six main firefighting foam types — fire class coverage, expansion ratio, mixing ratio and which scenario each is designed for. 🕐 12 min read 📅 Updated 2025 🏷️ Foam Concentrate ·

Technical Guide CA-FIRE · Fire Protection Engineering 12 min read Alarm Check Valve Assembly — Parts, Components & Trim Explained A complete guide to every component in an alarm check valve assembly: what each part does, how they work together, and what to specify for wet-pipe, dry-pipe, and grooved systems. An alarm check valve assembly

Technical Guide Actuator Sizing · 11 min read Butterfly Valve Torque Calculation: A Practical Guide for System Designers Correct torque calculation is the foundation of reliable butterfly valve selection — it determines whether your gear actuator or lever handle can actually open and close the valve under worst-case system conditions. This guide covers the complete

— CA-FIRE Protection · Fujian, China Fire Protection Gate Valves Full-bore resilient wedge · Rising & non-rising stem · Flanged & grooved · DN50–DN400 OS&Y NRS Grooved Tamper Switch Signal Resilient Wedge Rising Stem Grooved Y Strainer Y Type Strainer Home ›Blog ›Gate Valve Types Selection Guide March 2026  ·  9 min read Gate Valve

— CA-FIRE Protection · Fujian, China Fire Protection Gate Valves Full-bore resilient wedge · Rising & non-rising stem · Flanged & grooved · DN50–DN400 OS&Y NRS Grooved Tamper Switch Signal Resilient Wedge Rising Stem Grooved Y Strainer Y Type Strainer Home ›Blog ›What Is a Gate Valve? Technical Guide March 2026  ·  10 min read