Product Overview

Optional features and accessories available for this
Macon product are an extra charge, and not included
in the standard model price.
www.maconbalancing.com
Model AB
0.50” to 2.00”
Submittal Data
Tunstall Corporation
118 Exchange Street · Chicopee, MA 01013
Phone [phone] · Fax [phone]
Section: Components Bulletin-MB-AB-0915.06
AUTOMATIC
NOMINAL DIMENSIONS & WEIGHTS
MODEL
SIZE
Cv*
A
B C D E
**T
SWT
Flow
Range
WEIGHT
in mm FNPT SWT lbs kg
AB1e-050 0.50” 15
5.5
in 5.28 5.64 3.59 1.97 1.61 1.91 0.83
0.35
to
5.0
GPM
1.78 0.81
mm 134.10 143.30 91.20 50.10 40.90 48.50 21.08
AB1e-075 0.75” 20
in 5.41 5.92 3.59 1.97 1.61 1.91 0.98
1.83 0.83
mm 137.40 150.40 91.20 50.10 40.90 48.50 24.89
AB1e-100 1.00” 25
in 5.75 6.21 3.59 1.97 1.61 1.91 0.92
1.97 0.89
mm 146.10 157.70 91.20 50.10 40.90 48.50 23.37
AB2e-050 0.50” 15
7.0
in 5.71 5.95 3.86 3.66 2.08 2.02 0.83
0.35
to
10.0
GPM
2.09 0.95
mm 145.16 151.16 98.04 92.99 52.83 51.33 21.08
AB2e-075 0.75” 20
in 5.74 6.20 3.86 3.66 2.08 2.02 0.88
2.09 0.95
mm 146.02 157.48 98.04 92.99 52.83 51.33 22.35
AB2e-100 1.00” 25
in 5.96 6.36 3.86 3.66 2.08 2.02 0.92
5.05 2.29
mm 151.51 161.54 98.04 92.99 52.83 51.33 23.37
AB2e-125 1.25” 32
in 6.14 6.69 3.86 3.66 2.08 2.02 1.43
5.05 2.29
mm 155.96 169.93 98.04 92.99 52.83 51.33 36.32
AB3-100 1.00” 25
25.0
in 6.98 7.18 5.38 5.03 2.44 3.61 1.41
5.0
to
21.0
GPM
5.05 2.29
mm 177.29 182.37 136.65 127.76 61.98 91.69 35.81
AB3-125 1.25” 32
in 7.06 7.24 5.38 5.03 2.44 3.61 1.43
5.17 2.35
mm 179.32 183.90 136.65 127.76 61.98 91.69 36.32
AB3-150 1.50” 40
in 7.06 7.37 5.38 5.03 2.44 3.61 1.17
5.17 2.35
mm 179.32 187.20 136.65 127.76 61.98 91.69 29.72
AB4-150 1.50” 40
in 9.59 9.91 7.44 5.66 2.83 3.91 1.17
11.0
to
70.0
GPM
8.63 3.91
68.0
mm 249.60 251.70 189.00 143.60 71.90 99.50 29.72
AB4-200 2.00” 50
in 9.59 10.35 7.44 5.66 2.83 3.92 1.50
8.65 3.92
mm 249.60 262.89 189.00 143.60 71.90 99.57 38.10
* Cv values are for the body only without the cartridge inside.
** Please reference the tailpiece data sheet #Bulletin-MB-TP for other sizes and connections.
Dimensions not for construction purposes unless certified by factory.
SPECIFICATIONS
Pressure Ratings: 600 PSI (4140 kPa)
Temperature Ratings: 250ºF (121ºC)
Accuracy: ± 5% of flow rate
Body Material: Forged Brass
End Connections: Fixed End:
Union End:
DZR Brass - SWT & FNPT
Brass - Press-End
Brass - SWT, FNPT, MNPT & Press-End
Flow Cartridge: 1/2” to 1-1/2” - Ultrason
®
Composite
2” - Stainless Steel
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 w/Vinyl Grip
Available Options: “PTV” combination PT & Air Vent, DV hose end Drain Valve & Extensions.
Model AB Automatic Balancing Valve is a combination ball valve, automatic flow con-
trol device and union. The removable flow cartridge is factory set to automatically limit
the GPM to within +5% of the specified flow. The ball valve has a chrome plated ball,
Teflon seats and a blowout proof stem with double EPDM O-ring seals. The union has an
EPDM O-ring seal and tailpiece available in MNPT, FNPT, and SWT end connections.
Standard features include Memory Stop and Dual Pressure / Temperature Ports.