Brochure

CALEFFI
ACCREDITED
ISO 9001 No. 0003 ISO 9001 FM 21654
Hydro separator
548 and NA548 series
01076/14 NA
Replaces 01076/08 NA
Function
The Caleffi 548 and NA548 series hydraulic separator creates a zone
with a low pressure loss, which enables primary and secondary circuits
connected to it to be hydraulically independent of each other; the ow
in one circuit does not create a ow into the other. This device
consists of several different functional components, each of which
meets specific requirements, typical of the circuits used in heating and
air-conditioning systems.
· Hydraulic separator - To keep connected hydronic circuits totally
independent from each other.
· Dirt remover - To permit the separation and collection of any
impurities present in the circuits. Provided with a valved connection
with discharge piping.
· Automatic air vent valve - For automatic venting of any air
contained in the circuits. Provided with a valved connection for
maintenance purposes.
Product range
548 series Hydraulic separator in steel with union connections, drain and insulation..........................................connections 1" to 2" union sweat
1 to 2" NPT female
548 series Hydraulic separator in steel with flanged connections, drain and insulation............. ............. ......................connections 2" to 4" ANSI
NA548 series Hydraulic separator in steel with flanged connections, drain and insulation ASME and CRN.......................connections 2" to 4" ANSI
NA548 series Hydraulic separator in steel with flanged connections and drain, ASME and CRN.. .. ..................... .........connections 5" to 12" ANSI*
*Larger sizes available, consult factory
Technical specifications
Threaded and sweat connections
Connections - main: 1", 1¼", 1½", 2" NPT female union
1", 1¼", 1½", 2" sweat union
- drain valve: ¾" garden hose thread
- thermo well tap: ½" straight thread female
Materials - separator body: epoxy resin painted steel
- internal baffle 300 series stainless steel
- air vent body: brass
- shut off and drain valve body: brass
Performance
Suitable fluids: water and non-hazardous glycol solution up to 50%
Max. operating pressure: 150 psi (10 bar)
Working temperature range with insulation: 32–210°F (0–100°C)
Working temperature range without insulation: 32–250°F (0–120°C)
Agency approval
Series NA548 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
Materials: double density closed cell expanded PEX
Thickness: 3/4" (20 mm)
Density: - internal part: 2 lb/ft
3
( 30 kg/m
3
)
- external part: 3.1 lb/ft
3
(50 kg/m
3
)
Thermal conductivity: 32°F (0°C): 9 BTU
.
in/hr
.
ft
2
.
°F (0.038 W/(m
.
K)
-40°F (-40°C): 11 BTU
.
in/hr
.
ft
2
.
°F (0.045 W/(m
.
K)
Coefficient of resistance to the diffusion of vapor: >1,300
Temperature range: 32–210°F (0–100°C)
Reaction to fire (DIN4102): class B 2
Flanged connections
Connections - main: 2"-12"ANSI B16.5 150 CLASS RF
- drain valve: 2 — 6": 1¼" NPT female
8 — 12": 2" NPT female
- thermo well tap (8 — 12" only):
- front center: ¾" NPT female
- inlet/outlet flanges: ½" NPT female
Materials - separator body: epoxy resin painted steel
- air vent body: brass
- shut off and drain valve body: brass
- internal baffle: 300 series stainless steel
Performance
Suitable fluids: water and non-hazardous glycol solution up to 50%
Max. operating pressure: 150 psi (10 bar)
Working temperature range with insulation: 32–220°F (0–105°C)
Working temperature range without insulation (vessel):
32–270°F (0–132°C)
Technical specifications of insulation, flanged versions to 4"
Internal part
Materials: rigid closed cell expanded polyurethane foam
Thickness: 2 3/8" (60 mm)
Density: 2.8 lb/ft
3
(45 kg/m
3
)
Thermal conductivity: 6 BTU
.
in/hr
.
ft
2
.
°F (0.023 W/(m
.
K))
Temperature range: 32–220°F (0–105°C)
Outer part
Materials: embossed aluminum
Thickness: 7.0-mil (0.7 mm)
Reaction to fire (DIN 4102): class 1
Head covers
Heat formed materials: PS