Flowserve 800 Globe Valve - Manual (Page 5)

800 Globe Valves FCD ADENIM0008-00
5
4.0 Test Conditions
(Continued)
4.1.3 A seat leakage test at 110% of the valves specified maximum "delta P".
4.1.4 A backseat leakage test at 110% of the 100
°
F pressure rating.
4.1.5 A packing test at 110% of the 100
°
F pressure rating.
5.0 Operating Precautions And Limitations
5.1 Maximum hydrostatic test pressure shall not exceed the values imposed by the ASME Code, Section III.
6.0 Installation Instructions
6.1 Lifting and Handling Requirements and Limitations
6.1.1 Good judgment should be exercised in selecting a lifting device that will safely support the unit's weight.
6.2 Installation
6.2.1 Although the valves have been shipped in a clean condition, prior to installing the valves, examine the lines
and the valve ports for foreign matter and clean them thoroughly if they have been exposed to the elements.
(BEFORE CLEANING IN THIS FASHION, CHECK AT THE SITE TO SEE IF A SPECIFIC CLEANING
PROCEDURE SHOULD BE FOLLOWED.) Open the valves fully and flush them out with water if possible;
otherwise blow them out with air or steam.
In performing this cleaning procedure, the ports should be vertical, the stem horizontal to assure complete
removal of all matter which might have accumulated during storage.
6.2.2 Ensure that there is no line sag at the point of installation. Eliminate any pipeline deviation by the proper use of
pipeline hangers or similar device.
6.2.3 Where possible, install the valves with the stem vertical.