TECHNICAL LIBRARY
Technical library
Practical guides for fire-protection and water engineers and contractors: product differences, how to choose, and the formulas you need on site. Every article is reviewed by our technical team.
الوصلات المحززةRoll Grooving vs Cut Grooving: Differences and When to Use EachHow grooves are formed on pipe ends, roll versus cut grooving, which suits which wall thickness, and how to check groove quality.الوصلات المحززةGrooved Tees, Crosses and Reducers: Selection GuideWhen to use a grooved tee, reducing tee or cross, concentric versus eccentric reducers, and how MECH models compare.الوصلات المحززةGrooved Elbows: Angles, Models and How to ChooseGrooved elbows at 90°, 45°, 22.5° and 11.25° plus reducing elbows: MECH models compared, with selection and ordering points.المحابس والصماماتPressure Reducing vs Pressure Relief Valves: Differences and UsesHow pressure reducing and relief valves differ, where each is used, what to watch for in fire systems, and the MECH models.المحابس والصماماتY-Strainers: How They Work, Where to Install and How to CleanWhat a Y-strainer protects, where and which way to install it, how to clean it, and how MECH models compare.المحابس والصماماتButterfly Valves in Fire Protection: Wafer, Grooved and Tamper SwitchesHow a butterfly valve works, wafer versus grooved, why fire systems need a tamper switch, and how MECH models compare.المحابس والصماماتCheck Valves in Fire Protection: Types and Selection GuideHow a check valve works, swing versus wafer, where it is used in fire systems, and how MECH models compare.
الوصلات المحززةGrooved End Cap: Types, Sizes and Ordering GuidePlain, centre-outlet and eccentric-outlet grooved end caps compared, and why the pipe outside diameter must be stated in millimetres before ordering.
الوصلات المحززةMechanical Tee: Selection and Installation GuideHow a mechanical tee works, when to choose it over a grooved tee or a welded outlet, how MECH models compare, and…
الرشاشات والتصميم الهيدروليكيSprinkler K-Factor: How to Calculate Flow and Required PressureWhat K5.6 and K80 mean, how to work out sprinkler flow from pressure and back, the common K-factors, and worked examples in…
الوصلات المحززةRigid vs Flexible Grooved Couplings: When to Use EachHow rigid and flexible grooved couplings differ, when to use each, how MECH models compare, and what to check when ordering and…
المحابس والصماماتOS&Y vs NRS Gate Valves: Differences and When to Use EachHow rising-stem OS&Y and non-rising-stem NRS gate valves differ, NFPA indicating and supervision requirements, and how MECH models compare.
Free engineering tools DN ↔ inch converter, sprinkler flow calculator (K-factor) and pressure unit converter. Open the tools 
الوصلات المحززةGrooved End Cap: Types, Sizes and Ordering GuidePlain, centre-outlet and eccentric-outlet grooved end caps compared, and why the pipe outside diameter must be stated in millimetres before ordering.الوصلات المحززةMechanical Tee: Selection and Installation GuideHow a mechanical tee works, when to choose it over a grooved tee or a welded outlet, how MECH models compare, and…الرشاشات والتصميم الهيدروليكيSprinkler K-Factor: How to Calculate Flow and Required PressureWhat K5.6 and K80 mean, how to work out sprinkler flow from pressure and back, the common K-factors, and worked examples in…الوصلات المحززةRigid vs Flexible Grooved Couplings: When to Use EachHow rigid and flexible grooved couplings differ, when to use each, how MECH models compare, and what to check when ordering and…المحابس والصماماتOS&Y vs NRS Gate Valves: Differences and When to Use EachHow rising-stem OS&Y and non-rising-stem NRS gate valves differ, NFPA indicating and supervision requirements, and how MECH models compare.Send your BOQ and get a detailed quotation
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