Product Overview
CALEFFI
ACCREDITED
ISO 9001 No. 0003
ISO 9001 FM 21654
F
B
C D E
AA
Tmax 250ϒF
P
max 150 psi
T
max 220ϒF
P
max 150 psi
38711
BI-DIRECTIONAL
2–6”
8–12 ”
HYDRO
HydroCal
™
combination hydraulic,
air and dirt separator
549 and NA549 series
01178/14 NA
Function
The Caleffi HydroCal
™
combination hydraulic, air and dirt separator is
a device that combines high performance air and dirt removal with
hydraulic separation. Primary and secondary circuits connected to it
become hydraulically decoupled thus eliminating pump conflict.
A proven, time tested stainless steel internal coalescing element
continuously and automatically eliminates all entrained air, including
microbubbles, in the system. Air discharge capacity is very high. Over
time, dirt particles as tiny as 5 microns are captured and collected away
from the flow stream.
The 3-in-1 high performance functionality of the HydroCal
™
saves
system installation and maintenance cost as there is no need to include
separate air and dirt separators. It can be used on either hot or chilled
watersystems.
Product range
549 series HydroCal
™
hydraulic, air and dirt separator in steel with flanged connections, drain and insulation ....................... connections 2–4" ANSI
NA549 series HydroCal
™
hydraulic, air and dirt separator in steel with flanged connections,
drain and insulation, ASME and CRN ................................................................................................................... connections 2–4" ANSI
NA549 series HydroCal
™
hydraulic, air and dirt separator in steel with flanged connections and drain, ASME and CRN ............ connections 6–12" ANSI
Technical specifications
Connections - flanged: 2–12" ANSI B16.5 150 CLASS RF
- drain valve: 2–6": 1-1/4" NPT female
8 –12" : 2" NPT female
- thermometer pockets: 1/2" (8–12" only)
front center: 3/4" NPT female
inlet/outlet flanges: 1/2" NPT female
Materials - separator body: epoxy resin painted steel body
- air vent body brass
- shut-off and drain valve body: brass
- internal element: 300 series stainless steel
- air vent seal: VITON
- air vent float: stainless steel
Performance
Suitable fluids: water and non-hazardous glycol solutions up to 50%
Max. operating pressure: 150 psi (10 bar)
Max. connection velocity: 4 feet per second (1.2 m/s)
Temperature range: - with insulation 32–220°F (0–105°C)
- without insulation (vessel) 32–270°F (0–132°C)
Particle separation capacity: to 5 μm (0.2 mil)
Air separation capacity: 100% removal to micro-bubble level
Agency approval
Series NA549 is designed and built in accordance with Section VIII,
Division 1 of the ASME Boiler and Pressure Vessel Code and tagged
and registered with the National Board of Boiler and Pressure Vessel
Inspector, and CRN registered, and stamped for 150 psi (10 bar)
working pressure, with ASME U stamp.
Technical specifications of insulation
Inner part
Material: rigid closed cell expanded polyurethane foam
Thickness: 2-3/8" (60 mm)
Density: 3 lb/ft
3
(45 kg/m
3
)
Conductivity (ISO 2581): 0.16 BTU·in/hr·ft
2
·°F (0.023 W/(m·K))
Temperature range: 32–220°F (0–105°C)
Outer part
Material: embossed aluminium
Thickness: 7-mil (0.70 mm)
Fire resistance (DIN 4102): class 1
Head covers
Heat formed material: PS
Dimensions
Code A B C D E F
Wt.
(lbs.)
Flow
(gpm)
Vol
(gal.)
549052A
2" 1
1
⁄4" 13" 13" 15" 14" 73 37.3 4.0
549062A
2
1
⁄2" 1
1
⁄4" 13" 13" 15" 14" 79 63 4.0
549082A
3" 1
1
⁄4" 15" 17
3
⁄4" 17" 18 " 108 95.5 8.0
54910 2 A
4" 1
1
⁄4" 15" 17
3
⁄4" 17" 18 " 117 149 8.0
NA54915 0 A*
6" 1
1
⁄4" 15" 22" 19" 25" 231 380 23.2
NA549200A*
8" 2" 33
7
⁄8" 39
3
⁄8" 27
1
⁄2" 35
1
⁄2" 520 625 95.0
NA549250A*
10" 2" 33
7
⁄8" 43
5
⁄16" 30" 41
3
⁄4" 725 1,030 175
NA549300A*
12" 2" 33
7
⁄8" 47
1
⁄4" 31
1
⁄2" 47
3
⁄4" 110 0 1,650 255
Replaces 01178/13 NA
*Without insulation
NA prefix indicates ASME tagged and registered with the National
Board of Boiler and Pressure Vessel Inspectors and CRN registered.
with ASME U stamp.
Add NA prefix to 2" to 4" flanged connection for ASME approved,
CRN registered.
Larger sizes available, consult with factory.




