KTM
RICHARDS FIGURE R382/R392 BALL VALVES
INSTALLATION AND OPERATING INSTRUCTIONS
Installation and operating instructions for:
• R382, DN 65 - 100 reduced bore ball valves
• R392, DN 50 - 80 full bore ball valves
PIPE COMPATIBILITY
Emerson ball valves are suitable for installation
into most piping systems. The standard end
connections are:
• BSPT
• NPT
• Socket weld pipe Sch. 40
• Socket weld O/D Tube Sch. 10
• Butt weld pipe Sch. 40
Other end connections are available upon
request.
MAINTENANCE
The only routine maintenance required is
periodical checks and adjustment to the stem
assembly. Adjustment to the gland nut
is recommended after the first 5000 and
10000 cycles; and every 10000 cycles thereafter
to compensate for the bedding of thrust and
gland seal and ensure leak free operation.
When tightening the gland nut, do not exceed
recommended torques, see table overleaf. After
reaching recommended gland nut torque, back
off to nearest flat on nut. Bend the lock washer
over the nut in this position.
When fitting actuators to valves, refer
to mounting Instructions supplied with
mounting kit.
STORAGE INSTRUCTIONS
The valves ball, seats and end connections
should be adequately protected against
damage.
The protective end covers should not be
removed until ready for installation.
GENERAL
The R382/R392 are bidirectional valves,
controlling flow in either direction. They can
be installed in any position, horizontally or
vertically.
Thread tape or sealant is recommended to
ensure effective sealing. Check that the tape/
sealant is suitable for the service.
INSTALLATION
Prior to leaving the factory each valve is
pressure tested, and to prevent damage to the
ball surface and seats protective covers will
have been fitted. Leave these in place until
such time as the valve is ready for installation.
On removal make sure the valve is in the open
position and free of foreign matter. When
installing valve, follow relevant standards
and statutory regulations.
Examples:
Local gas fitting regulations, municipal building
codes or electrical wiring regulations.
a) Screwed valves: valves should not be
dismantled prior to fitting, and installed as
a unit following standard piping practice
(eg. using thread tape or pipe sealant).
When screwing the valve to the pipe DO NOT
OVERTIGHTEN.
b) Weld valves: follow instructions for weld
valves (see overleaf).
SAFETY PRECAUTIONS
Whenever a valve is being installed or removed
from the pipeline, ensure the line is not
pressurized and any hazardous medium is
drained away. Slowly cycle the valve several times
to relieve the cavity area and leave in the open
position.
Check that the seat and body pressure ratings are
suitable for the service prior to installation. These
ratings must not be exceeded.
© 2017 Emerson. All Rights Reserved.
Emerson.com/FinalControl
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