Watts TWS - Manual

IS-TWS
O-ring
Plunger Assembly
Valve Body
Seat
Union Nut
Drain Plug,
Blow Down
Installation Instructions
1. Drill a 1 7 ⁄
8
" diameter hole in the wall and insert the barrel
through the wall.
2. Determine system requirements:
a. If using a vacuum breaker, install the union outlet of the
TWS Hydrant in the vertical up position (see Fig. 1 and Fig. 2).
b. If using a Reduced Pressure Assembly, install the union
outlet of the TWS Hydrant in the vertical up orientation (see
Fig. 1 and Fig. 3).
Watts Regulator suggests the use of the Watts Series
U009AQT for added installation savings.
c. If using a Double Check Assembly in meter box (see Fig. 4
and Fig. 5), install the union outlet in the vertical down posi-
tion.
3. Secure to the wall, anchoring through the faceplate.
4. Connect the threaded 3 ⁄ 4 " or 1" (20 or 25mm) inlet to the do-
mestic supply. (see Fig. 1)
5. If the inside connection is to be a sweat (soldered) connection,
turn hydrant key counterclockwise to the full open position.
Wrap hydrant side connection with a wet rag and/or heat sink
before applying heat.
6. Restore water supply, slowly open hydrant and fl ush thor-
oughly.
7. Connect union outlet to the backfl ow preventer.
Note: TWS does not include Backfl ow Prevention Assembly.
Consult local codes for proper protection.
Note: The Watts TWS is designed for maximum fl ow and
should be operated in the wide open position. The TWS hy-
drant should not be used as a throttling valve.
Figure 1
Head Body
Key
Series TWS
Wall Hydrant
Sizes: 3 /
4
" and 1" (20 and 25mm)
Size 3 ⁄ 4 " and 1" (20 and 25mm)
Nom. Pipe Stem
Model No. Distance Length Length
in. mm in. mm in. mm
TWS-8 8.0 200 9.0 229 12.3 312
TWS-10 10.0 255 11.0 279 14.3 363
TWS-12 12.00 305 13.0 330 16.3 414
TWS
IS-TWS.indd 1 9/5/08 2:15:13 PM