Brochure

Model US
Submittal Data
Model US Union offers numerous end connections, pressure/temperature
measurement and drain.
The union has an EPDM O-ring seal and tailpiece available in MNPT,
FNPT and SWT end connections. Standard features include Pressure/
Temperature Port, and Hose End Drain Valve.
∗ Please reference the tailpiece data sheet (Form #M-TP) for other sizes and connections.
Dimensions not for construction purposes unless certified by factory.
NOMINAL DIMENSIONS & WEIGHTS
600 PSI (4140 kPa)
250 F (120 C)
Forged Brass
Brass - Fixed End: SWT, FNPT;
Union End: SWT, FNPT, & MNPT
EPDM
“PTV” combination PT & air vent, port extensions.
SPECIFICATIONS
Pressure Ratings:
Temperature Ratings:
Body Material:
End Connections:
Seals:
Available Options:
STANDARD COMPONENTS
Please reference data sheet (Form #M-ACC) for optional accessories.
Drain valve with forged brass body, chrome plated ball, Teflon seats, double EPDM O-ring stem seals, aluminum han-
dle, ¾” hose connection with cap and plastic retainer strap. Rated to 600 PSI (4140 kPa) WOG and 250°F (120°C).
Pressure/Temperature test port with brass body, dual durometer EPDM core, brass cap with O-ring seal and neoprene
retainer strap. Accepts standard 1/8” (4mm) gauge adapter or thermometer stem. Rated to 500 PSI (3450 kPa) and
275°F (135°C).
A eziS
B C
*T
Wgt
in mm FNPT SWT
MPT
lbs kg
1/2" 15
in 1.99 1.88 2.52 1.83 0.38
1.04 0.49
mm 50.47 47.68 64.00 46.48 21.08
3/4" 20
in 2.04 2.12 2.52 1.83 0.98
1.24 0.56
mm 51.82 53.90 64.00 46.48 24.89
1" 25
in 2.15 2.28 2.75 2.07 0.92
1.39 0.69
mm 54.56 57.85 69.85 52.56 23.37
1-1/4" 32
in 2.39 2.56 3.11 2.45 1.43
2.48 1.18
mm 60.63 65.05 78.99 62.23 36.32
1-1/2" 40
in 2.39 2.69 3.11 2.48 1.17
2.79 1.33
mm 60.63 68.35 78.99 60.96 29.72
2" 50
in 2.49 3.03 3.43 2.75 1.50
3.77 1.82
mm 63.30 76.96 87.12 69.85 38.10
T
A
C
B
3/8" 10
3/4"R 20R
in N/A 1.86 2.52 1.83 0.75
mm N/A 47.24 64.00 46.48 19.05
0.94 0.43
0.97 0.44
in 2.04 2.12 2.75 2.07 0.98
mm 51.82 53.90 69.85 52.56 24.89
Form # US-03.14
Optional features and accessories available
for this Macon product are an extra charge,
and not included in the standard model price.
Tunstall Corporation
118 Exchange Street
Chicopee, MA 01013