Watts CSM-81-F Series User manual

Installation
1. Install valve on return line of equipment to be balanced or as
shown on the plans.
2. For maximum accuracy, the flow measurement/balancing
valve should be located in an unrestricted straight pipe run
so that no fittings (elbow, valve, tee, etc.) is closer to the
flow measurement/balancing valve than 5 pipe diameters
upstream and 2 pipe diameter downstream. If a balancing
valve is located downstream from a circulation pump, allow a
distance of ten (10) diameters between the pump and balanc-
ing valves.
3. Series CSM-81-F flow measurement/balancing valves are
bidirectional and should be installed to insure ease of hooking
up meter and adjusting setting
Flow Measurement Instruction
1. With wrench, turn indicator to open position on indicator
plate.
2. Connect, vent and prepare the differential gauge. Refer to
instructions furnished with the gauge.
3. After initial pressure differential reading is taken, refer to flow
rate charts to obtain flow rate based on pressure differential
and valve setting. If flow rate is in excess of that specified,
turn indicator towards closed position, noting pressure drop
and valve setting and determining new flow rates from flow
rate chart. The unit or system has now been balanced.
4. Disconnect differential gauge.
Watts Series CSM-81-F
Flow Measurement/Balancing Valves
Sizes: 21⁄2", 3", 4", 5", 6" and 8" (65, 80, 100, 125, 150, 200mm)
Installation Instructions
CSM-81-F
IS-CSM-81-F
The Watts Series CSM-81-F Flow Measurement/Balancing Valves are lubricated plug
valves designed for applications requiring balancing on medium to large flow rates. The
valve flanges are in accordance with ANSI B16.1 Class 125. Face to Face dimensions
are in accordance with ANSI B16.10.
Dimensions
▼
▼
▼
▼
▼
▼
▼
▼
▼
Q - Typ.
‘S’ places
equally spaced
on bolt circle -
both flanges
K
▼
▼
Max. Screw Length
C
D
B
A
F
▼
▼
▼
▼
A1
1”
▼
▼
MODEL NO. ORDERING SIZE (DN) DIMENSIONS WEIGHT
Code A A1 B C D F K Q S
Face to Bolt Flange Center to Center to Flange Square Dia. of Screw No.of
Face Circle Dia. Top Bottom Thickness Stem Holes Length Holes
in. mm in. mm in. mm in. mm in. mm in. mm. in. mm in. mm in. mm in. mm lbs. kgs.
CSM-81-F 036540 21⁄265 71⁄2191 51⁄2140 7 178 51⁄8130 315⁄16 99 11⁄16 17 11⁄431 3⁄419 21⁄264 4 29.5 13
CSM-81-F 036541 3 80 8 203 6 152 71⁄2191 57⁄16 137 43⁄16 106 3⁄419 11⁄431 3⁄419 21⁄264 4 39 18
CSM-81-F 036535 4 100 9 229 71⁄2191 9 229 61⁄2165 415⁄16 125 15⁄16 24 11⁄238 3⁄419 21⁄2 64 8 61.5 28
CSM-81-F 036542 5 125 101⁄2267 81⁄2216 10 254 73⁄4197 6 153 1 25 2 51 7⁄8 22 35⁄892 8 88 40
CSM-81-F 036543 6 150 101⁄2267 91⁄2241 11 279 73⁄4197 6 153 1 25 2 51 7⁄822 35⁄892 8 100 45
CSM-81-F 036544 8 200 111⁄2292 113⁄4299 131⁄2343 93⁄16 233 61⁄2165 11⁄829 2 51 7⁄822 35⁄892 8 172 78

21⁄2" (65mm) CSM-81-F Flow Curve
Dial Setting
Pressure Differential
Pressure Differential
Flow (water)
feet*
(water)
160.0
80.0
40.0
20.0
10.0
5.0
4.0
2.0
1.0
inches bars
(water)
1920 4.8
960 2.4
480 1.2
240 .60
120 .30
60 .15
48 .12
24 .06
12 .03
50 40 30 20
10
0
5 10 20 40 50 100 200 400 800 gpm
19 38 76 152 190 380 760 1520 3040 lpm
* To convert to kg/m2, multiply feet of water by 304.8
* To convert to psi, multiply feet of water by .4335
2

3” (75mm) CSM-81-F Flow Curve
* To convert to kg/m2, multiply feet of water by 304.8
* To convert to psi, multiply feet of water by .4335
3
Dial Setting
Pressure Differential
Pressure Differential
Flow (water)
feet*
(water)
160.0
80.0
40.0
20.0
10.0
5.0
4.0
2.0
1.0
inches bars
(water)
1920 4.8
960 2.4
480 1.2
240 .60
120 .30
60 .15
48 .12
24 .06
12 .03
50 40 30 20
10
0
5 10 20 40 50 100 200 400 800 gpm
19 38 76 152 190 380 760 1520 3040 lpm

4” (100mm) CSM-81-F Flow Curve
Dial Setting
Pressure Differential
Pressure Differential
Flow (water)
feet*
(water)
160.0
80.0
40.0
20.0
10.0
5.0
4.0
2.0
1.0
inches bars
(water)
1920 4.8
960 2.4
480 1.2
240 .60
120 .30
60 .15
48 .12
24 .06
12 .03
50 40 30
20
10
0
5 10 20 40 50 100 200 400 800 gpm
19 38 76 152 190 380 760 1520 3040 lpm
* To convert to kg/m2, multiply feet of water by 304.8
* To convert to psi, multiply feet of water by .4335
4

5” (125mm) CSM-81-F Flow Curve
Dial Setting
Pressure Differential
Pressure Differential
Flow (water)
feet*
(water)
160.0
80.0
40.0
20.0
10.0
5.0
4.0
2.0
1.0
inches bars
(water)
1920 4.8
960 2.4
480 1.2
240 .60
120 .30
60 .15
48 .12
24 .06
12 .03
50 40
30
20
10
0
10 20 40 50 100 200 400 800 1200 gpm
38 76 152 190 380 760 1520 3040 4560 lpm
* To convert to kg/m2, multiply feet of water by 304.8
* To convert to psi, multiply feet of water by .4335
5

6” (150mm) CSM-81-F Flow Curve
Dial Setting
Pressure Differential
Pressure Differential
Flow (water)
feet*
(water)
160.0
80.0
40.0
20.0
10.0
5.0
4.0
2.0
1.0
inches bars
(water)
1920 4.8
960 2.4
480 1.2
240 .60
120 .30
60 .15
48 .12
24 .06
12 .03
50 40
30
20
10
0
10 20 40 50 100 200 400 800 1200 gpm
38 76 152 190 380 760 1520 3040 4560 lpm
* To convert to kg/m2, multiply feet of water by 304.8
* To convert to psi, multiply feet of water by .4335
6

8” (200mm) CSM-81-F Flow Curve
Dial Setting
Pressure Differential
Pressure Differential
Flow (water)
feet*
(water)
160.0
80.0
40.0
20.0
10.0
5.0
4.0
2.0
1.0
inches bars
(water)
1920 4.8
960 2.4
480 1.2
240 .60
120 .30
60 .15
48 .12
24 .06
12 .03
60 50
40
30
20
10
0
10 20 40 50 100 200 400 800 1200 gpm
38 76 152 190 380 760 1520 3040 4560 lpm
* To convert to kg/m2, multiply feet of water by 304.8
* To convert to psi, multiply feet of water by .4335
7

IS-CSM-81-F 0829 EDP# 1911333 © Watts, 2008
USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.watts.com
Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.ca
Water Safety & Flow Control Products
Limited Warranty: Watts Regulator Co. (the “Company”) warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of
original shipment. In the event of such defects within the warranty period, the Company will, at its option, replace or recondition the product without charge.
THE WARRANTY SET FORTH HEREIN IS GIVEN EXPRESSLY AND IS THE ONLY WARRANTY GIVEN BY THE COMPANY WITH RESPECT TO THE PRODUCT. THE COMPANY MAKES NO OTHER
WARRANTIES, EXPRESS OR IMPLIED. THE COMPANY HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
The remedy described in the first paragraph of this warranty shall constitute the sole and exclusive remedy for breach of warranty, and the Company shall not be responsible for any incidental, special
or consequential damages, including without limitation, lost profits or the cost of repairing or replacing other property which is damaged if this product does not work properly, other costs resulting
from labor charges, delays, vandalism, negligence, fouling caused by foreign material, damage from adverse water conditions, chemical, or any other circumstances over which the Company has no
control. This warranty shall be invalidated by any abuse, misuse, misapplication, improper installation or improper maintenance or alteration of the product.
Some States do not allow limitations on how long an implied warranty lasts, and some States do not allow the exclusion or limitation of incidental or consequential damages. Therefore the above
limitations may not apply to you. This Limited Warranty gives you specific legal rights, and you may have other rights that vary from State to State. You should consult applicable state laws to
determine your rights. SO FAR AS IS CONSISTENT WITH APPLICABLE STATE LAW, ANY IMPLIED WARRANTIES THAT MAY NOT BE DISCLAIMED, INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF ORIGINAL SHIPMENT.