130
AS-Q—AS-Z Series Instruction Manual
AirSep Corporation
1.7
Valve Markings
The valve has an identification plate attached to the valve
body (see Figure 4).
Identification plate markings:
1. Trim material
2. Valve catalog code
3. Seat Material
4. Body Material
5. Maximum operating pressure
6. Maximum/minimum shut-off pressure/temperature
7. Approvals/Special Service marking
8. Model
9. Assembly date
1.8
Safety Precautions
WARNING:
DO NOT EXCEED THE VALVE PERFORMANCE LIMITATIONS!
EXCEEDING THE PRESSURE OR TEMPERATURE LIMITATIONS
MARKED ON THE VALVE IDENTIFICATION PLATE MAY CAUSE
DAMAGE AND LEAD TO UNCONTROLLED PRESSURE RELEASE.
DAMAGE OR PERSONAL INJURY MAY RESULT.
WARNING:
SEAT AND BODY RATINGS!
THE PRACTICAL AND SAFE USE OF THIS PRODUCT IS DETERMINED
BY BOTH THE SEAT AND BODY RATINGS. READ THE IDENTIFICATION
PLATE AND CHECK BOTH RATINGS. THIS PRODUCT IS AVAILABLE
WITH A VARIETY OF SEAT MATERIALS. SOME OF THE SEAT
MATERIALS HAVE PRESSURE RATINGS THAT ARE LESS THAN
THE BODY RATINGS. ALL OF THE BODY AND SEAT RATINGS ARE
DEPENDENT ON VALVE TYPE AND SIZE, SEAT MATERIAL, AND
TEMPERATURE. DO NOT EXCEED THESE RATINGS!
WARNING:
BEWARE OF DISC MOVEMENT!
KEEP HANDS, OTHER PARTS OF THE BODY, TOOLS AND OTHER
OBJECTS OUT OF THE OPEN FLOW PORT. LEAVE NO FOREIGN
OBJECTS INSIDE THE PIPELINE. WHEN THE VALVE IS ACTUATED,
THE DISC FUNCTIONS AS A CUTTING DEVISE. DISCONNECT ANY
PNEUMATIC SUPPLY LINES, ANY ELECTRICAL POWER SOURCES
AND MAKE SURE SPRINGS IN SPRING-RETURN ACTUATORS ARE
IN THE FULL EXTENDED/RELAXED STATE BEFORE PERFORMING
ANY VALVE MAINTENANCE. FAILURE TO DO THIS MAY RESULT IN
DAMAGE OR PERSONAL INJURY!
Identification Plate
Figure 4
WAFER-SPHERE BUTTERFLY VALVES
WAFER DESIGN
Square drive in
disc closed
position.
Blade drive in disc
closed position.
WAFER-SPHERE BUTTERFLY VALVES
SINGLE FLANGE LUGGED DESIGN
Square drive in
disc closed
position
Blade drive in
disc closed
position.
Single Flange Body Design
Figure 3
Wafer Body Design
Figure 2
IMO 1/18
4
IMO-308 EN
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