Installation Guide

ManualsBrandsWatts ManualsBalancing Valves1-1/4" CSM-61 Flow Monitor (Threaded)

Figure 1

Memory

Screw

Pressure - Temperature Limits

Pattern Type of Solder Working Temp. Maximum Pressure

°F °C psi bar

Solder-to-Solder 95.5 200 93 250 17.2

(Tin-Antimony) 225 107 212 14.6

250 121 175 12.1

50-50 and 100 38 175 12.1

60-40 150 66 125 8.6

(Tin-Lead) 250 121 75 5.2

Thread-to-Thread — 250 121 300 20.7

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 valve should

be located in an unrestricted straight pipe run so that no fit-

tings (elbow, valve, tee, etc.) is closer to the measurement

valve than 5 pipe diameters upstream and 2 pipe diameter

downstream. If a balancing valve is located downsteam from

a circulation pump, allow a distance of ten (10) diameters

between the pump and balancing valves.

3. Series CSM-61M1 flow measurement valves are bidirectional

and should be installed to insure ease of hooking up meter,

adjusting setting and enabling memory device. A

⁄8" (3 mm)

NPT plugged port is installed on each measurement valve

and can be used as a drain port if needed.

4. Solder end valves are designed to be soft soldered into lines

without disassembly, using a low temperature solder (400°F)

(204°C). Other solders such as 95/5 tin antimony (460°F)

(238°C) can be used, however, extreme caution must be

used to prevent seat damage. Higher temperature solders will

damage the seat material.

5. Apply heat with flame directed away from the center of the

valve body. Excessive heat can harm the seats.

6. Heat solder joints only to the point were solder will flow prop-

erly. Excessive heat may distort brass castings.

Flow Measurement Instruction

1. Loosen memory screw.

2. With wrench, turn indicator to open position on indicator

plate. Do not force past this point.

3. Connect, vent and prepare the differential gauge. Refer to

instructions furnished with the gauge.

4. 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. Once correct flow rate setting has been estab-

lished, slide memory stop clockwise towards open side of

indicator plate until memory stop ring hits indicator plate. Do

not force beyond this point. Tighten memory screw. Refer to

Figure 1. The unit or system has now been balanced and the

memory set.

5. After memory is set, disconnect differential gauge.

Watts Series CSM-61

Flow Measurement/Balancing Valves

Sizes: 1

⁄4", 1

⁄2", 2", 2

⁄2", and 3" (32, 40, 50, 65 and 80mm)

Installation Instructions

CSM-61

IS-CSM-61-L

Watts Flow Measurement/Balancing Valves are available in the straightway pattern with

threaded or solder end connections. All tapered pipe threads conform to FEDERAL

SPECS H28. Valves conform to ANSI B16.18 and ANSI B16.22. Maximum Pressure/

Temperature Ratings: 300psi (20.7 bar) - 250°F (121°C).

Summary of content (8 pages)

PAGE 1
IS-CSM-61-L Watts Series CSM-61 Flow Measurement/Balancing Valves Sizes: 11⁄4", 11⁄2", 2", 21⁄2", and 3" (32, 40, 50, 65 and 80mm) Installation Instructions Watts Flow Measurement/Balancing Valves are available in the straightway pattern with threaded or solder end connections. All tapered pipe threads conform to FEDERAL SPECS H28. Valves conform to ANSI B16.18 and ANSI B16.22. Maximum Pressure/ Temperature Ratings: 300psi (20.7 bar) - 250°F (121°C). CSM-61 Installation Flow Measurement Instruction 1.
PAGE 2
Dimensions CSM-61 Top View A R Memory Screw CSM-61 End View C D Model size in. CSM-61-M2-S 1⁄ CSM-61-M2-S 11⁄2 CSM-61-M2-S 2 CSM-61-M1-T 11⁄4 CSM-61-M1-T 11⁄2 CSM-61-M1-T 2 CSM-61-M1-T 21⁄2 CSM-61-M1-T 3 Suffix: S = Solder, T = Threaded 14 Dimensions A C Weight D R mm in. mm in. mm in. mm in. mm lbs. kgs.
PAGE 3
11⁄4" (32mm) CSM-61 Flow Curve Dial Setting Feet (Water)* 80.0 40 Inches 35 30 25 20 (Water) bar 960 2.4 10 480 1.2 0 Pressure Differential 20.0 240 .6 120 .3 10.0 5.0 60 .15 2.0 24 .06 1.0 12 .03 .5 .5 1.9 1 3.8 2 7.6 3 11 5 10 10 39 20 76 Flow * To convert to kg/m2, multiply feet of water by 304.8 *To convert to psi multiply feet of water by .4335 3 30 114 6 .02 50 gpm 189 lpm Pressure Differential 40.
PAGE 4
11⁄2" (40mm) CSM-61 Flow Curve Feet (Water)* 80.0 Inches Dial Setting 40 35 30 25 (Water) bar 20 960 2.4 480 1.2 20.0 240 .6 10.0 120 .3 5.0 60 .15 2.0 24 .06 1.0 12 .03 .5 6 .02 Pressure Differential 40.0 0 3 11 5 19 10 38 20 76 30 114 50 189 100 gpm 378 lpm Flow * To convert to kg/m2, multiply feet of water by 304.8 *To convert to psi multiply feet of water by .
PAGE 5
2" (50mm) CSM-61 Flow Curve Feet (Water)* 80.0 Inches Dial Setting 45 40 35 30 25 20 (Water) bar 10 960 2.4 40.0 480 1.2 20.0 240 .6 10.0 120 .3 5.0 60 .15 2.0 24 .06 1.0 12 .03 .5 3 11 5 19 10 38 20 76 30 114 50 189 100 378 Flow * To convert to kg/m2, multiply feet of water by 304.8 *To convert to psi multiply feet of water by .4335 5 6 .
PAGE 6
21⁄2" (65mm) CSM-61 Flow Curve Dial Setting 45 40 Inches 35 30 25 20 15 10 960 2.4 480 1.2 240 .6 10.0 120 .3 5.0 60 .15 2.0 24 .06 1.0 12 .03 40.0 0 20.0 Pressure Differential (Water) bar .5 5 19 10 38 20 76 30 114 50 189 100 378 200 757 Flow * To convert to kg/m2, multiply feet of water by 304.8 *To convert to psi multiply feet of water by .4335 6 6 400 gpm 1514 lpm .02 Pressure Differential Feet (Water)* 80.
PAGE 7
3" (80mm) CSM-61 Flow Curve Dial Setting Feet (Water)* 80.0 45 40 Inches 35 30 25 20 15 (Water) bar 960 2.4 10 40.0 480 1.2 20.0 240 .6 10.0 120 .3 5.0 60 .15 2.0 24 .06 1.0 12 .03 .5 10 38 20 76 30 114 50 189 100 378 200 757 400 1514 Flow * To convert to kg/m2, multiply feet of water by 304.8 *To convert to psi multiply feet of water by .4335 7 6 .
PAGE 8
CSM-61 Pressure Drop Curve Pressure Drop Curve (In open position, equal to zero setting) Pressure Drop kPa psi 172 138 25 20 103 15 69 55 10 8 41 34 28 6 5 4 21 3 14 2 10 1.5 7 1 2" (50mm) 11⁄2" (40mm) 21⁄2" (65mm) 11⁄4" (32mm) 3" (80mm) 20 76 30 114 40 50 60 152 190 228 80 100 304 380 200 750 300 400 500 gpm 1140 1520 1900 lpm Flow Size CV in. mm.