5 min read
Two-Piece, Three-Piece, Monoblock: Ball Valve Bodies and Maintenance
How many pieces a ball valve body has is not a manufacturing detail — it decides whether servicing it stops the line.
Valve selection articles
Technical articles on Valve selection: valve and expansion joint selection, application and installation notes.
Articles
5 min read
DN/PN and NPS/Class: Two Systems Not to Mix
A Class is not a pressure value. The permissible pressure is read from the standard's table together with material and temperature...
5 min read
Threaded or Flanged? Choosing the Connection on Small-Bore Lines
On small bore, a flange is often needless cost — and occasionally the only right answer. The deciding factor is not size but how o...
5 min read
Strainers: A Cheap Part That Prevents an Expensive Failure
A strainer is one of the cheapest fittings in a line; the equipment it protects is usually the most expensive.
6 min read
Check Valve Body Material: Bronze, Brass, Stainless Steel
Body material follows the fluid; connection type follows the pipework. The two are independent decisions, and galvanic corrosion,...
6 min read
JIS-Bodied and Bronze Valves: Standard and Material on Ship Piping
Choosing a valve on board is two separate decisions: which standard sets its dimensions, and which material it is made from. Neith...
6 min read
Spring-Loaded Lift Check Valves: Why Orientation Is Free
A spring check valve can be fitted horizontally or vertically; a swing type cannot. The difference lies in whether the closing for...
5 min read
Straight or Angle Pattern? How Body Geometry Shapes the Piping
When the same valve comes in two body forms, it is not a cosmetic choice. The angle pattern removes an elbow and a weld where the...
6 min read
Check Valve Types: A Map of Closing Mechanism and Face-to-Face Length
Swing, spring-loaded, dual-plate, disc and wafer check valves do the same job with different geometry. How the closing element mov...
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