Fisher-Rosemount Design CV500, Инструкция по эксплуатации

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Design CV500
2
Table 1. Specifications
Valve Sizes
J
3,
J
4,
J
6,
J
8,
J
10, and
J
12-inch
End Connection Style
J
Raised-face flanges or
J
ring-type joint flanges
(ASME/ANSI B16.5). Valve bodies with DIN PN10
through PN100 flanges also available. Various
flangeless (wafer) body sizes are available in
certain ANSI and DIN ratings. Consult your Fisher
Controls sales office.
Maximum Inlet Pressure
(1)
Consistent with applicable ANSI or DIN flange
ratings
Maximum Pressure Drops
(1)
See tables 2 and 3
Shutoff Classification
Class IV per ANSI/FCI 70-2 and IEC 60534-4,
(0.01% of valve capacity at full travel), for either flow
direction.
Flow Characteristic
Approximately equal percentage
Flow Direction
J
Forward (normal) flow is into the convex side of
the V-notch ball
J
Bidirectional flow is into either side of V-notch
ball
Actuator Mounting
J
Right-hand or
J
left-hand as viewed from the
upstream side of the valve
Mounting position depends on the desired open
valve position and flow direction required by
operating conditions.
Valve Ball Rotation
Counterclockwise to close (when viewed from
actuator side of valve body) through 90 degrees of
ball rotation
Valve Body/Actuator Action
With diaphragm or piston rotary actuator,
field-reversible between
J
push-down-to-close
(extending actuator rod closes valve body) and
J
push-down-to-open (extending actuator rod
opens valve body)
Shaft Diameters
(2)
and Approximate Weights
See table 4
1. The pressure/temperature limits in this manual and any applicable standard limitations should not be exceeded.
2. Shaft diameter and spline end must match available shaft diameter of actuator.
Description
The Design CV500 Cam-Vee-Ball rotary control valve,
has a Vee-Ball
R
style segmented ball in a valve body
similar to the Design V500 valve. The Design CV500 is
a flanged (figure 1) or wafer (figure 2) valve with a
patented, self-centering seat, eccentrically rotating
V-notch ball, and splined valve shaft. Suitable for
forward or reverse flow use, this valve mates with a
variety of actuators to provide throttling or on-off
service. Both flanged and wafer valves mate with ANSI
flanges or DIN flanges.
Only personnel qualified through training or experience
should install, operate, and maintain this valve and
related equipment. If you have any questions
concerning these instructions, contact your Fisher
sales office before proceeding.
Specifications
Specifications for the Design CV500 rotary control
valve are listed in table 1.
Installation
WARNING
Personal injury or equipment damage
caused by sudden release of pressure
can result if the valve assembly is
installed where service conditions could
exceed the pressure drop limits given in
tables 2 and 3 or the valve rating. To
avoid such injury or property damage,
provide a relief valve for overpressure
protection as required by government or
accepted industry codes and good
engineering practices.