Watts CSM-81-F - Manual

For Balancing and Flow Measurement Applications
ES-CSM-81
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Series CSM-81-F
Flow Measurement Valves
Sizes: 2 1 ⁄
2
" – 8" (65 – 200mm)
Series CSM-81-F Flow Measurement Valves are designed for
application on medium to high volume flow rate HVAC units.
The CSM-81-F’s lubricated plug design, extended throttling
range and large indicator plate provide accurate flow measure-
ment and long service life.
CSM-81-F’s unique cylindrical plug design provides full flow
with minimal pressure drops and low operating torque. Large
wrench flats on the external plug surface make setting or closing
the valve simple.
Series CSM-81-F valves feature easily accessible checked
metering ports with drip caps to facilitate system balancing and
flow measurement. These valves also provide positive shutoff,
eliminating the need for a separate service valve.
Features
• Accurate flow measurement
• Flanged end connections
• Positive shutoff
• Checked metering ports
• Low torque
• Face to face dimensions to ANSI B16.10
Applications
• Fan coil units
• Water source heat pumps
• Reheat coils
• Panel coils
• Branch lines
• Pumps
CSM-81
Specifications
A flow measurement valve shall be installed on each
hot/chilled water unit or as otherwise shown on the plans. The
valve shall be of flanged end connections, provide positive
shutoff, low torque cylindrical plug design, with position indica-
tor plate and checked metering ports. The valve shall be a
Watts Regulator Company Series CSM-81-F.
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials with-
out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
BAA/ARRA Compliant *
*This product complies with the Buy American Act and The
American Recovery and Reinvestment Act. For more information,
visit watts.com.