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NOMINAL DIMENSIONS & WEIGHTS
NOMINAL DIMENSIONS & WEIGHTS
Please reference the tailpiece data sheet for other sizes and connections.
Dimensions not for construction pur poses unless certified by factory.
STANDARD COMPONENTS
Model MBF
Submittal Data
Macon’s MBF Manual Balancing Valve features a cast steel venturi
flow element. The precisioned 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.
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 275°F (135°C).
Please reference Tunstall Corporation data sheet for optional accessories
SPECIFICATIONS
Pressure Ratings:
Temperature Ratings:
Accuracy:
Body Material: Venturi
Butterfly Valve
Disc:
Stem:
Seat:
Bushing:
Seal:
End Connections:
Metering Ports:
Available Options:
200 PSIG (1380 kPa)
225ºF (107ºC)
+
3% of Rate
Carbon Steel ASTM A-120
Ductile Iron A536 65-45-12
Aluminum Bronze B148 C954
Stainless Steel 416 A582
EPDM with Phenolic Backing
Teflon/Fiberglass Backed
EPDM
ANSI Class 125/150# Flanged
Extended Length Pressure/Temperature test ports
“PTV” combination PT and air vent
Form # MBF-03.14
Size
A B E
Wgt
in mm lbs kg
2-1/2"
in 8.75 7.00 4.20 9.13 8.13
32.00 14.51
mm 177.80 106.65 231.9 206.50
3" 75
in
9.78
7.50
4.54
9.13 8.38
38.00 17.23
mm
248.41
190.50 212.85
4" 100
in
11.50
9.00 9.13
55.00 24.94
mm
292.10
228.60 231.90
5" 125
in
13.13
10.00 5.53 9.00 9.63
79.00 35.83
mm
333.50
254.00 244.60
6" 150
in
14.73
11.00 6.04 8.88 10.13
92.00 41.73
mm 374.14 279.40 257.30
65
222.25
C
D
115.29
5.02
127.48
140.49
153.39
231.90
9.00
228.60
228.60
225.55
2.50"– 6 .00" MBF
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