Flowserve 1888 Double-Disc Gate Valve - Manual (Page 7)

7
4.0 TEST CONDITIONS
4.1 Each valve covered by this manual has received the following hydrostatic tests with no measurable leakage
4.1.1 A shell hydrostatic test at 1.5 times the 100°F pressure rating.
4.1.2 A seat leakage and disc closure test at 110% of the 100°F pressure rating.
4.1.3 A backseat leakage test at 110% of the 100°F pressure rating.
4.1.4 A packing test at 110% of the 100°F pressure rating.
1888-lb. Double-Disc Gate Valve FCD ADENIM0001-00