Installation & Operation Manual
Proven Quality since 1892
ECON ball valves Fig. 7422, 7442, 7522, 7542, 7622, 7642, 7722, 7742
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Rev.4
Page 4
Ball valve, fire-safe execution.
2) Reassembly:
Clean and inspect all parts, reassembly by processes are reverse sequence of
disassembly.
Reassemble the ball valve by using new seat rings, body seal rings and stem packing
is strongly recommended.
Follow procedures 8b1 in reversed order. Swing the body back to original position. Put
the ball in open position. Tighten body bolts evenly per Torque Data Table B.
To swing the body can only be done at the Non Fire-Safe executions!!
Tighten the stem nut (8), using Table A stipulated torque figures.
Pressure test the valve, then cycle valve several times before resuming services
