Submittal Sheet

Caleffi North America, Inc. 3883 West Milwaukee Road / Milwaukee, WI 53208
Tel: [phone] / Fax: [phone] / www.caleffi.us © Copyright 2012 Caleffi
Product Information - PI 101 - Issue Date 03/2012
Description
The Caleffi NA553 Boiler Trim Kit is available in 10 configurations and
combines 8 boiler installation components into one box. This kit matches
the necessary components for boiler installations into a simple package.
The NA553 takes all the guess work out of selecting components for a
simple installation.
The kit includes:
-1 Caleffi DISCAL
®
Air Separator
-1 Backflow Preventer
-1 AutoFill
TM
-1 Expansion Tank Check Valve
-2 Brass Nipples
-1 Brass Tee
-1 Expansion Tank
CALEFFI
Kit Part Number NA553259 NA553369 NA553669 NA553379 NA553679
DISCAL
®
551022A
3/4" Sweat
551028A
1" Sweat
551028A
1" Sweat
551035A
1-1/4" Sweat
551035A
1-1/4" Sweat
AutoFill
TM
/
Backflow Combo.
573009A
1/2" Sweat
573009A
1/2" Sweat
573009A
1/2" Sweat
573009A
1/2" Sweat
573009A
1/2" Sweat
Check Valve 561402A 561402A 561402A 561402A 561402A
Tank 2.2 gal 4.4 gal 7.6 gal 4.4 gal 7.6 gal
Nipples 3" Brass 3" Brass 3" Brass 3" Brass 3" Brass
Tee NPT Brass NPT Brass NPT Brass NPT Brass NPT Brass
Sweat Connections
Kit Part Number NA553252 NA553362 NA553662 NA553372 NA553672
DISCAL
®
551003A
3/4" NPT
551006A
1" NPT
551006A
1" NPT
551007A
1-1/4"NPT
551007A
1-1/4"NPT
AutoFill
TM
/
Backflow Combo.
573002A
1/2" NPT
573002A
1/2" NPT
573002A
1/2" NPT
573002A
1/2" NPT
573002A
1/2" NPT
Check Valve 561402A 561402A 561402A 561402A 561402A
Tank 2.2 gal 4.4 gal 7.6 gal 4.4 gal 7.6 gal
Nipples 3" Brass 3" Brass 3" Brass 3" Brass 3" Brass
Tee NPT Brass NPT Brass NPT Brass NPT Brass NPT Brass
NPT Connections
NA553 Series
Boiler Trim Kits