Ductile Iron Tap 1

[Lan123]

I want to have two (2) 1/2" tap connections for directly (without any saddles) connecting pressure gauges (via isolation valve) on the Ductile Iron C110/A2.10 pump suction and discharge pipes (16" and 10' respectively). The plan is to use nipple and ball type shut off valves at the tap to isolate the pressure gauge if the need arises. What would be the best material for shutoff valve so that no corrosion takes place at the connection? The application is raw sewage.

Thanks in advance.

http://www.eng-tips.com/

 

[bimr]

Materials: Wetted parts including process flanges and drain/vent valves, 316 stainless steel, unless otherwise noted.

 

[Lan123]

Bimr would this corrode the DI pipe due to dissimilar material?

 

[bimr]

Never witnessed a problem. The corrosion should be only marginally affected.

http://www.pdhonline.org/courses/s118/s118content.pdf

 

[Lan123]

bimr thank you for the excellent handout on this topic.