Are the branch pipes connected in front of or behind the pressure gauge and orifice flow meter on the controller the same?

2016-01-13View Original

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Are the branch pipes connected in front of or behind the pressure gauge and orifice flow meter on the controller the same?

Reply #22016-01-13

Pressure gauges usually have a GZ1/2” (internal thread) fitting welded on first, followed by a dual-port fitting and a gate valve (or needle valve), after which the pressure gauge connection tube is attached. Subsequently, a pressure guiding tube with an outer diameter of 18 mm is used; similar to the orifice plate, the pressure gauge connector has an outer diameter of 14 mm.

Reply #32016-01-13

Pressure gauges usually have a GZ1/2” (internal thread) fitting welded on first, followed by a dual-port fitting and a gate valve (or needle valve), after which the pressure gauge connection tube is attached. Subsequently, a pressure guiding tube with an outer diameter of 18 mm is used; similar to the orifice plate, the pressure gauge connector has an outer diameter of 14 mm.

Reply #42016-01-14

It’s definitely different; the pressure loss across the orifice plate is greater

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