Page 7
Localized Stress Relief is acceptable, do not furnace stress
relieve without consulting ValvTechnologies Engineering.
DO NOT
STRESS RELIEVE
800°F MAX.
MAXIMUM
1100°F
W
ELDING
, S
TRESS
R
ELIEVING
AND
I
NSULATION
The use of radiation shields is advised if heat damage to the actuator is a
concern.
Care is to be taken to minimize weld slag and splatter within the valve.
Do not strike arcs on the valve.
CAUTION! Excessive temperature and incorrect insulating or stress
relieving technique may damage the valve and void the warranty.
CAUTION!
Valve must be OPEN
during welding.
CAUTION!
Valve insulation is prohibited
during stress relieving.
Only insulate to this level
Valve service insulation is advised for valves expected to ex-
CAUTION!
No insulation is to be applied
above the body flat.
P
OST
I
NSULATION
P
ROCEDURES
Piping system shall be cleaned and flushed.
Limit switch and position indicator operation should be observed as the valve is cycled several times.
CAUTION!
Valves and valve assemblies should never
be used as load bearing members or be
used as part of a load bearing structure
.
