Samson 3244 Operating Instructions Manual

Also see for 3244: Mounting and operating instructions Mounting and operating instructions

EB 8026 EN 41MalfunctionsMalfunction Possible reasons Recommended actionIncreased flow through closedvalve (seat leakage)Dirt or other foreign particles de-posited between the seat andplug.Shut off the section of the pipe-line and flush the valve.Valve trim is worn. Contact SAMSON's After-salesService department.1) A label on the flange (2) indicates whether an adjustable packing is installed.Contact SAMSON's After‑sales Service department for malfunctions not listed in the table.Note8.2 Emergency actionUpon supply air or control signal failure, thevalve moves to its fail-safe position (see sec-tion 3.1).The plant operator is responsible for emer-gency action to be taken in the plant.In the event of a valve malfunction:1. Close the shut-off valves upstream anddownstream of the control valve to stopthe process medium from flowingthrough the valve.2. Check the valve for damage. If neces-sary, contact SAMSON's After-sales Ser-vice department.Putting the valve back into operation aftera malfunctionÎ Slowly open the shut-off valves. Allowthe process medium to slowly flow intothe valve.