
Optional features and accessories available for this
Macon product are an extra charge, and not included
in the standard model price.
www.maconbalancing.com
Tunstall Corporation
118 Exchange Street · Chicopee, MA 01013
Phone (413) 594-8695 · Fax (413) 598-8109
Section:
Components
Bulletin-MB-MB-0915
Model MB
Submittal Data
Model MB is a venturi style manual balancing valve with 100% positive
shut-off full port plated ball. Permanently installed venturi section,
Teflon seats, double o-ring shaft seals, Pressure/Temperature readout ports,
adjustable memory stop with position indicator and union end with o-ring
seal. Available with multiple combinations of end connection types and sizes.
SPECIFICATIONS
Pressure Ratings:
600 PSI (4140 kPa)
Temperature Ratings:
250ºF (120ºC)
Accuracy:
± 3% of flow rate
Body Material:
Forged Brass
End Connections:
Brass - Fixed End: SWT, FNPT
Union End: SWT, FNPT & MNPT
Flow Element:
Brass Venturi, Permanently installed
Seals:
EPDM
Ball:
Chrome Plated Brass, full port,
100%
positive
shut-off.
Optional 316 Stainless Steel
.
Stem:
Brass.
Optional 316 Stainless Steel
.
Handle:
Full size Zinc Plated lever with Vinyl Grip
Memory Stop:
Zinc Plated Steel
Available Options:
“PTV” combination PT & Air Vent, hose end Drain Valve & Extensions
NOMINAL DIMENSIONS & WEIGHTS
SIZE
Flow Range
GPM (10”-100”)
A
B
C
D
E
*T
MPT
Cv
Weight
in mm
FNPT
SWT
lbs kg
1/2”
15
(L) 0.4 - 1.3
(H) 1.3 - 4.0
in 3.46 3.55 2.30 3.66 1.98 1.82 1.50 (L) 2.0
(H) 5.9
1.31 0.59
mm 87.78 90.25 58.42 93.02 50.29 46.20 38.10
3/4”R 20
(L) 0.4 - 1.3
(H) 1.3 - 4.0
in 3.60 3.67 2.30 3.66 1.98 1.82 1.55 (L) 2.0
(H) 5.9
1.34 0.61
mm 91.47 93.27 58.42 93.02 50.29 46.20 39.37
3/4” 20
(L) 1.6 - 5.0
(H) 4.0 - 13.0
in 3.87 3.98 2.56 3.66 2.08 2.05 1.56 (L) 7.6
(H) 13.0
1.81 0.82
mm 98.30 101.12 65.05 93.01 52.83 52.07 39.70
1”R 25
(L) 1.6 - 5.0
(H) 4.0 - 13.0
in 4.00 4.14 2.56 3.66 2.08 2.05 1.75 (L) 7.6
(H) 13.0
1.81 0.82
mm 101.60 105.16 65.03 92.96 52.83 52.07 44.45
1-1/4”
32
7.25 - 23.0
in 5.39 5.56 3.70 5.03 2.44 2.43 1.80
29.00 4.59 2.08
mm 136.83 141.25 93.95 127.76 61.90 61.74 45.72
1-1/2”
40
9.5 - 30.0
in 6.06 6.38 4.16 5.66 2.83 2.43 1.80
45.00 4.97 2.25
mm 153.92 162.05 105.66 143.76 71.88 61.74 45.72
2”R 50
in 6.57 7.36 4.45 5.66 2.83 2.74 1.98
77.40 7.10 3.20
mm 166.90 187.00 113.00 143.60 71.90 69.67 50.29
* Please reference the tailpiece data sheet #Bulletin-MB-TP for other sizes and connections.
Dimensions not for construction purposes unless certified by factory.
STANDARD COMPONENTS
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 275ºF (135ºC)
Memory stop with position indicator, zinc coated steel.
Please reference data sheet #Bulletin-MB-Accessories for optional accessories.
15.0 - 50.0
MANU
AL
23
Содержание Macon AB Series
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Страница 52: ...This page left blank intentionally SHUT OFF VALVES 52 ...
Страница 56: ...This page left blank intentionally UNIONS 56 ...
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