Aug 15, 2017 · We are having issues lately with our ball valves - leaking via stem end. The installation method for these valves and actuator are in vertical orientation (with valve's stem …

Sep 1, 2009 · Can a Floating Ball Valve be installed in any direction, is there a perfered direction for flow? I am under the impression that a Floating Ball Valve is Bi-Directional. I was told that I …

Oct 23, 2018 · Could you advise flow direction definition for valve installation? If we install valves according to flow direction at valve closed condiion, how can we convince our customer? is …

Feb 20, 2013 · Does the direction of flow through a V-ball type ball valve vary from manufacture to manufacture? I have gotten two different answers on flow direction from different companies, …

Mar 20, 2015 · This will likely make the valve uni-directional with a client-specified upstream/downstream preferred direction. I hope this helps. @LittleInch - Many ball valve …

Dec 21, 2009 · 2. Installation should be no more than 45 deg from vertical. 3. Yes, these valves will typically get to lower temperatures. 4. As Q2 Stem position and length apply to any type of …

Jun 15, 2016 · Both a check and gate valve should be installed in the discharge piping with the check valve placed between the pump and the stop valve to protect the pump from reverse …

Dec 30, 2013 · There might be some exceptions; for example: in the case of a maintenance drain valve even though the flow direction is out of the vessel, the blind should go downstream of …

Mar 5, 2008 · The valve may seal effectively with flow in the opposite direction; however, the manufacturer should be contacted to verify. If this is a y-pattern valve, you probably wouldn't …

Feb 22, 2013 · The vertical part itself with the valve and the actuator brances off of the 12" pipe with a 2" weldolet at the base. This may become a 3" weldolet followed by a 2" reducer if it …