Instruction Manual
D104143X012
CL600 Control-Disk Valve
January 2019
5
CAUTION
The valve configuration and construction materials were selected to meet particular pressure, temperature, pressure drop,
and controlled fluid conditions specified in the customer's order. Because some valve body/trim material combinations are
limited in their pressure drop and temperature range capabilities, do not apply any other conditions to the valve without
first contacting your Emerson sales office.
The maximum allowable inlet pressures for steel and stainless steel valve bodies are consistent with the
pressure‐temperature ratings shown in table 1, except where further limited by the trim and packing material
temperature capabilities given in table 4. Valves are also available in CW2M valve body materials. The CW2M valve
body material is not listed in ASME B16.34. Valve bodies constructed of this material mates with ASME flanges, but
must not be installed in systems requiring conformance to ASME standards if not included in ASME
pressure/temperature ratings. Maximum allowable inlet pressures for CL600 Control-Disk valve bodies made of CW2M
construction materials are shown in table 3.
1. Install a three‐valve bypass around the control valve assembly if continuous operation is necessary during
inspection and maintenance of the valve body.
2. Inspect the valve body to be certain it is free of foreign material.
3. The valve is normally shipped as part of a control valve assembly, with an actuator mounted on the valve body.
If the valve body and actuator have been purchased separately or if the actuator has been removed for maintenance,
mount the actuator, and adjust actuator travel to close the valve before inserting the valve body into the line. This is
necessary due to the measurements that must be made during the actuator adjustment process. Refer to the Actuator
Mounting section on page 22 of this manual and to the separate actuator instruction manual for mounting and
adjusting instructions before proceeding.
4. Inspect adjacent pipelines to be certain they are free of any foreign material, such as pipe scale or welding slag, that
could damage the valve body seating surfaces.
CAUTION
Damage to the disk (key 6) will occur if any pipe flanges or piping connected to the valve body interfere with the disk
rotation path. However, the disk can be rotated without interference when the valve body is installed between adjacent
pipe flanges or piping that has an inside diameter equal to or greater than either schedule 80 pipe or compatible EN pipe
sizes. If piping with a smaller inner diameter than specified above is connected to the valve, measure carefully to be certain
the disk rotates without interference before putting the valve into operation.
5. Flow is in the standard direction when the seal retainer (key 16) is facing downstream. Standard flow direction is
also indicated by the flow direction arrow cast into the valve body. Flow in the forward direction is permissible
within allowable pressure drop limits with the proper seal.
CAUTION
CL600 Control-Disk disk rotation is counterclockwise to open (when viewed from the actuator side of the valve body, see
figure 12) through 90 degrees of disk rotation.
6. With the disk in the closed position, install line flange gaskets, and insert the valve between the pipeline flanges.
Use either flat sheet gaskets or spiral‐wound gaskets with compression‐controlling centering rings. Spiral‐wound
gaskets without compression‐controlling centering rings are not recommended for this purpose.
