Product Overview

Model AL
0.50” to 1.25” - Low Lead
Submittal Data
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 [phone] · Fax [phone]
Section: Components Bulletin-MB-AL-1016.02
Model AL is a low-lead automatic flow control de-
vice. The removable flow cartridge is factory set to
automatically limit the GPM to within ±5% of the
specified flow.
Standard features include EPDM O-rings and
seals, FNPT end connections and dual plugged
accessory ports.
Cartridge
LOW LEAD
AUTOMATIC
Above shown with optional PL test ports installed.
NOMINAL DIMENSIONS & WEIGHTS
MODEL
SIZE
A B C ±
Weight
GPM SETTINGS
2-32 PSID
in mm lbs kg
AL-050
0.50” 15
in 3.70 2.15 2.19
1.15 0.52
0.35, 0.5, 0.66, 0.75, 0.88, 1.0,
1.1, 1.3, 1.5, 1.75, 2.0, 2.2, 2.5, 2.65,
3.0, 3.5, 4.0, 4.5, 5.0
mm 94.10 54.60 55.60
AL-075
0.75” 20
in 3.84 2.15 2.19
1.17 0.53
0.35, 0.5, 0.66, 0.75, 0.88, 1.0,
1.1, 1.3, 1.5, 1.75, 2.0, 2.2, 2.5,
2.65, 3.0, 3.5, 4.0, 4.5, 5.0, 6.0,
7.0, 8.0, 9.0, 10.0
mm 97.50 54.60 55.60
AL-100
1.00” 25
in 4.23 2.15 2.19
1.32 0.60
mm 107.40 54.60 55.60
AL-125
1.25” 32
in 5.31 3.00 2.44
2.82 1.28
5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0,
13.0, 14.0, 15.0, 16.0, 17.0, 18.0, 19.0,
20.0, 21.0
mm 135.00 76.35 62.03
NOTE: Dimensions not for construction purposes unless certified by factory.
± Dimensions with optional “PL” Low-Lead Pressure / Temperature Test Port .
OPTIONAL ACCESSORY COMPONENTS
PL
Low-Lead 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 ther-
mometer stem. Rated to 500 PSI (3450 kPa) and 275ºF (135ºC)
Please reference data sheet #Bulletin-MB-Accessories for optional accessories.
SPECIFICATIONS
Pressure Ratings: 400 PSI (2758 kPa)
Temperature Ratings: 250ºF (121ºC)
Accuracy: ± 5% of flow rate
Body Material: Naval Brass, C46500 Low-Lead
(Max. lead content .25% by
weight)
End Connections: FNPT - Inlet and Outlet
Flow Cartridge(s): Ultrason
®
Composite
Seals: EPDM
Available Options: PL - Low-Lead PT test port
PE - Press End Connections