
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-MBF-250-600-0915
Model MBF
2.50” to 6.00”
Submittal Data
Model MBF Manual Balancing Valve features a cast steel venturi flow ele-
ment. The precision machined throat provides measurement accuracy of
± 3% of flow rate. Mounted on the discharge is a ductile iron lug type
butterfly valve with adjustable flow positioning plate. ANSI 125/150 flanged
end connections. Dual extended length Pressure/Temperature ports. Hanging
I.D. Tag.
NOMINAL DIMENSIONS & WEIGHTS
MODEL
SIZE
A
B
C
D
E
Weight
in mm
lbs kg
MBF-250
2-1/2”
65
in 8.75 7.00 4.20 9.12 8.13
32.00 14.51
mm 222.25 177.80 106.65 231.90 206.50
MBF-300
3” 75
in 9.78 7.50 4.54 9.13 8.38
38.00 17.23
mm 248.41 190.50 115.29 231.90 212.85
MBF-400
4” 100
in 11.50 9.00 5.02 9.00 9.13
55.00 24.94
mm 292.10 228.60 127.48 228.60 231.90
MBF-500
5” 125
in 13.13 10.00 5.53 9.00 9.63
79.00 35.83
mm 333.50 254.00 140.49 228.60 244.60
MBF-600
6” 150
in 14.73 11.00 6.04 8.88 10.13
92.00 41.73
mm 374.14 279.40 153.39 225.55 257.30
Dimensions not for construction purposes unless certified by factory.
STANDARD COMPONENTS
Please reference data sheet #Bulletin-MB-Accessories for optional accessories.
Pressure / Temperature test port with brass body, dual durometer EPDM core, PTE Extender, 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)
SPECIFICATIONS
Pressure Ratings:
200 PSI (1380 kPa)
Temperature Ratings:
225ºF (107ºC)
Accuracy:
± 3% of flow rate
Body Material:
Venturi:
Carbon Steel ASTM A-120
Butterfly Valve: Ductile Iron A536 65-45-12
End Connections:
ANSI Class 125/150# Flanged
Flow Element:
Brass Venturi, Permanently installed
Disc:
Aluminum Bronze B148 C954
Stem:
Stainless
Steel 416 A582
Seat:
EPDM with Phenolic Backing
Bushing:
Teflon/Fiberglass
Backed
Seal:
EPDM
Metering Ports:
Extended Length Pressure/Temperature test ports
Available Options:
“PTV” combination PT & Air Vent
MANU
AL
25
Содержание Macon AB Series
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