Installation Guide

ManualsBrandsNIBCO ManualsBall Valves1/2 in. Brass Lead Free 2-Piece Threaded Full Port Ball Valve

Heat is generally applied using an

air-fuel torch (Figure 9). Such torches

use acetylene or an LP gas. Electric

resistance soldering tools can also be

used (Figure 10). They employ

heating electrodes and should be

considered when an open flame is a

concern.

Applying Solder

For joints in the horizontal position,

start applying the solder metal slightly

off-center at the bottom of the joint

(Figure 12, position a, and Figure

9). When the solder begins to melt

from the heat of the tube and fitting,

push the solder straight into the joint

while keeping the torch at the base of

the fitting and slightly ahead of the

point of application of the solder.

Continue this technique across the

bottom of the fitting and up one side to

the top of the fitting (Figure 12,

position b).

The now-solidified solder at the

bottom of the joint has created an

effective dam that will prevent the

solder from running out of the joint as

the sides and top of the joint are being

filled.

Return to the point of beginning,

overlapping slightly (Figure 12,

position c), and proceed up the

uncompleted side to the top, again,

overlapping slightly, (Figure 12,

position d). While soldering, small

drops may appear behind the point of

solder application, indicating the joint

is full to that point and will take no

more solder. Throughout this process

you are using all three physical states

of the solder: solid, pasty and liquid.

For joints in the vertical position,

make a similar sequence of overlap-

ping passes starting wherever is

convenient.

Solder joints depend on capillary

action drawing free-flowing molten

solder into the narrow clearance

between the fitting and the tube.

Molten solder metal is drawn into the

joint by capillary action regardless of

whether the solder flow is upward,

downward or horizontal.

Capillary action is most effective

when the space between the surfaces

to be joined is between 0.002 inch

and 0.005 inch. A certain amount of

looseness of fit can be tolerated, but

too loose a fit can cause difficulties

with larger size fittings.

For joining copper tube to solder-

cup valves, follow the manufacturer’s

instructions. The valve should be in the

open position before applying heat,

and the heat should be applied

primarily to the tube. Commercially

available heat-sink materials can also

be used for protection of temperature-

sensitive components during the

joining operation.

The amount of solder consumed

when adequately filling the capillary

space between the tube and either

wrought or cast fittings may be

Table 1: Solder Requirements for Solder Joint Pressure Fittings, length in inches

(1)

Using

-inch diameter (No. 9) Wire Solder

(1 inch length = .01227 cubic inches).

Actual consumption depends on workmanship.

Includes an allowance of 100% to cover wastage and loss.

NOTE: Flux requirements are usually 2 oz per lb of solder.

Nominal Wt. in lbs

or O.D. Cup at .010

Standard of Depth clearance

Size, Tube, of Fitting, per 100

inches inches inches

0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.008 0.009 0.010

joints

Joint Clearance, inches

.375 .310 .030 .060 .089 .119 .149 .179 .208 .238 .268 .298 .097

.500 .380 .049 .097 .146 .195 .243 .292 .341 .389 .438 .486 .159

.625 .500 .080 .160 .240 .320 .400 .480 .560 .640 .720 .800 .261

.750 .620 .119 .238 .357 .476 .595 .714 .833 .952 1.072 1.191 .389

.875 .750 .168 .336 .504 .672 .840 1.008 1.176 1.344 1.512 1.680 .548

1 1.125 .910 .262 .524 .786 1.048 1.311 1.573 1.835 2.097 2.359 2.621 .856

1.375 .970 .341 .683 1.024 1.366 1.707 2.049 2.390 2.732 3.073 3.415 1.115

1.625 1.090 .454 .907 1.361 1.814 2.268 2.721 3.175 3.628 4.082 4.535 1.480

2 2.125 1.340 .729 1.458 2.187 2.916 3.645 4.374 5.103 5.833 6.562 7.291 2.380

2.625 1.470 .988 1.976 2.964 3.952 4.940 5.928 6.916 7.904 8.892 9.880 3.225

3 3.125 1.660 1.328 2.656 3.985 5.313 6.641 7.969 9.297 10.626 11.954 13.282 4.335

3.625 1.910 1.773 3.546 5.318 7.091 8.864 10.637 12.409 14.182 15.955 17.728 5.786

4 4.125 2.160 2.281 4.563 6.844 9.125 11.407 13.688 15.969 18.250 20.532 22.813 7.446

5 5.125 2.660 3.490 6.981 10.471 13.962 17.452 20.943 24.433 27.924 31.414 34.905 11.392

6 6.125 3.090 4.846 9.692 14.538 19.383 24.229 29.075 33.921 38.767 43.613 48.459 15.815

8 8.125 3.970 8.259 16.518 24.777 33.035 41.294 49.553 57.812 66.071 74.330 82.589 26.955

10 10.125 4.000 10.370 20.739 31.109 41.478 51.848 62.218 72.587 82.957 93.326 103.696 33.845

12 12.125 4.500 13.970 27.940 41.910 55.881 69.851 83.821 97.791 111.761 125.731 139.701 45.596

Average

Actual

Consump-

tion

For

Estimating

Purposes