Neles PB2 Series, Инструкция по установке, обслуживанию и эксплуатации, Страница: 3 / 12

3 1PB270EN - 10/2020
1. GENERAL
1.1 SCOPE OF THE MANUAL
This instruction manual contains important information regarding
the installation, operation and maintenance of Neles™ PB2 Series
full bore, seat supported, flanged PFA lined ball valves. Please read
these instructions carefully and save them for future reference.
WARNING:
THE USE OF THE VALVE IS APPLICATION SPECIFIC.
BE SURE THAT THE VALVE IS SUITABLE FOR ITS
INTENDED SERVICE. IF YOU HAVE ANY QUESTIONS
CONCERNING THE USE, APPLICATION OR
COMPATIBILITY OF THE VALVE WITH THE INTENDED
SERVICE, CONTACT NELES FOR MORE INFORMATION.
1.2 VALVE MARKINGS
The valve has a name plate attached to the valve body. The name
plate markings identify the size, materials of construction, pressure
rating, month and year of construction, and a unique manufacturing
order number.
1.3 SAFETY PRECAUTIONS
WARNING:
DO NOT EXCEED THE VALVE PERFORMANCE
LIMITATIONS!
EXCEEDING THE PRESSURE OR TEMPERATURE
LIMITATIONS MARKED ON THE VALVE NAME 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 NAME PLATE AND CHECK BOTH RATINGS.
SOME SEAT MATERIALS HAVE PRESSURE RATINGS THAT
ARE LESS THAN THE BODY RATING. ALL OF THE BODY
AND SEAT RATINGS ARE DEPENDENT ON VALVE TYPE
AND SEAT MATERIAL. DO NOT EXCEED THESE RATINGS!
WARNING:
BEWARE OF BALL 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 BALL
FUNCTIONS AS A CUTTING DEVICE. 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!
WARNING:
WHEN HANDLING THE VALVE OR VALVE/ACTUATOR
ASSEMBLY, TAKE ITS WEIGHT INTO ACCOUNT!
NEVER LIFT THE VALVE OR VALVE/ACTUATOR
ASSEMBLY BY THE ACTUATOR, POSITIONER, LIMIT
SWITCH OR THEIR PIPING / BRACKETS. PLACE LIFTING
DEVICES SECURELY AROUND THE VALVE BODY.
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY
RESULT IN DAMAGE OR PERSONAL INJURY FROM
FALLING PARTS (SEE FIGURE 1 ).
Figure 1. Lifting of the valve assembly
1.4 TECHNICAL SPECIFICATION
Series: PB2
Bore: Full bore
End connection: Raised face, flanged
Service fluid: Dangerous or non-dangerous gas or
liquid
Service temperature &
pressure: ASTM A395 Ductile cast iron body:
-10°C to 160°C , 17.2 bar to 7 bar
ASTM A351 CF8 body: -30°C to
160°C, 19 bar to 7 bar
Size: NPS 1/2” to 6”
Rating: ASME Class 150
Face-to-face length: ASME B16.10
Leakage rate: API 598