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Idiomas disponibles
Idiomas disponibles
PR600
Maintenance
It is recommended that a periodic
maintenance schedule be established to
4
inspect the valve stem for calcium or hard
water deposits and the condition of the
diaphragm, seat disc and control pilot. An
annual preventive maintenance schedule
should help identify problem situations
before emergency repairs are needed.
The normal replacement parts are the
diaphragm, seat disc and rubber parts of
Pressure Sustaining/Relief Pilot PV20-C
Function
• Normally closed position, opens when
pressure reaches set-point.
• Used to control main valve to open on
pressure signal (relief, sustaining function).
• Used to control main valve to close on
pressure signal (surge, low pressure
shut-off function).
adj. screw
nut
cover
spring guide
spring
screw
spacer
O-ring
stem
O-ring
screw
body
The photos and description contained in this brochure are solely intended as an indication.
Watts Industries reserves the right to make technical and design changes to its products without prior notice.
the control pilot. The diaphragm and seat
disc are available together in a rubber
repair kit. Rubber repair kits for control
pilots are sold separately. For maximum
life expectancy, all rubber repair kits should
be stored in a cool, dry environment and
not exposed to direct sunlight. In the
event a non-rubber component part is
required, please consult your local Watts
representative.
Features
Responsive
- Selectable spring ranges to allow for
accurate, easy to adjust pressure setting.
- Large diaphragm area.
- ½" ports.
- Large seat area.
Ease of maintenance
- Can be serviced without removal from
control tubing.
- Replacement of elastomer parts is usually
maximum required servicing.
nut
lockwasher
diaphragm washer
diaphragm
diaphragm washer
O-ring
O-ring
gasket
retainer
rubber disc
seat
O-ring
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