5 min read
Solenoid Valves: Which Position Should It Fail To?
Normally closed or normally open is one line in a datasheet, but the answer is a safety decision. When the power goes, the valve s...
Valve selection articles
Technical articles on Valve selection: valve and expansion joint selection, application and installation notes.
Articles
6 min read
Mini and Wafer Ball Valves: Installations Where Space Runs Out
Once size and pressure class are settled, one constraint remains: the valve has to fit, and its lever has to turn. Mini and wafer...
5 min read
Pneumatic Actuators: Double Acting or Spring Return?
What the valve does when air is lost is a safety decision, not a convenience. A spring return actuator moves to a safe position; a...
5 min read
Fire Line Fittings and Periodic Inspection
Fittings on a fire line may stand unused for years and must work first time at exactly the moment they are needed.
6 min read
Stainless Body Ball Valves: When They Are Needed and When You Overpay
A stainless body is not a quality badge; it is a specific answer to a specific corrosion problem. In chloride-bearing water it sto...
5 min read
Butterfly Valves: Space and Cost Advantage on Large Diameters
On large-diameter lines, a butterfly valve instead of a gate valve usually saves space, weight and cost at once.
5 min read
Three-Way Ball Valves: In Diverting and Mixing Circuits
One body doing the work of two valves. But an L port and a T port are not the same thing, and confusing them leaves the circuit op...
5 min read
Check Valve Selection and Water Hammer
A check valve stops reverse flow; the real question is how quickly it stops it. A slow-closing check valve becomes the source of w...
6 min read
Fitting Selection for Marine Applications
Three things stress a fitting on board: saltwater, continuous vibration and limited maintenance access. Selection follows all thre...
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