Submittal Sheet

CALEFFI
Application
Air separators are used to continuously remove the air contained
in thehydronic circuits of heating and cooling systems. The air
dischargecapacity of these devices is very high. They are capable of
removing automatically all the air present in the system down to the
micro-bubble level.
The circulation of fully de-aerated water enables the equipment to
operate under optimum conditions, free from noise, corrosion, localized
or mechanical damage. Micro-bubbles, fusing with each other, increase
in volume (get larger) until they become large enough to rise to the top
where they are automatically released.
Submittal Data 02904.1 NA — Issue Date 10/2018
Dimensions
Typical Specification
Furnish and install on the plans and described herein, a Caleffi DISCAL
®
Air
Separator as manufactured by Caleffi. Each separator must be designed
with a brass valve body, seals in peroxide-cured EPDM and connections
for horizontal and vertical pipe installation with rotating collar. The separator
design must include a removable internal 304 stainless steel mesh,
coalescing medium to automatically remove all air present in the system.
Each separator shall be Caleffi model 5517 or approved equal.
(See product instructions for specific installation information.)
We reserve the right to change our products and their relevant technical data, contained in this publication, at any time and without prior notice. Contractors should request production drawings if prefabricating the system
.
Job name ______________________________________
Job location ______________________________________
Engineer ______________________________________
Mechanical contractor ________________________________
Contractor’s P.O. No. ________________________________
Representative ________________________________
Size ________________________________________
Quantity ________________________________________
Approval ________________________________________
Service ________________________________________
Tag No. ________________________________________
Notes ________________________________________
Technical specification
Materials - body: brass
- internal element: 304 stainless steel
- air vent float: PP
- seal: peroxide-cured EPDM
- air vent float linkages: stainless steel
- air vent float guide pin: stainless steel
Performance
Suitable fluids: water, glycol solution
Max. percentage of glycol: 50%
Max. working pressure: 150 psi (10 bar)
Temperature range: 32–250°F (0–120°C)
Air separation efficiency: 100% removal to micro-bubble level
Connections - main: ¾" and 1" sweat, press and NPT male union
- drain: ½" straight female thread
2018
com
DISCAL
®
air separator
5517 series, brass with rotating collar
Flow capacity
Size ¾" 1"
4.0 f/s
GPM 6 10
l/s 0.4 0.6
Cv 14 14
1/2 ”
E
C
B
F
D
Code A B C D E F Wt (lb)
551705A
3
⁄4" NPT 5
1
⁄8" 2
3
⁄16" 5
3
⁄8" 9
1
⁄4" 3
1
⁄2" 4.9
551765A
3
⁄4" press 6
3
⁄8" 2
3
⁄16" 5
3
⁄8" 9
3
⁄4” 3
1
⁄2" 4.9
551795A
3
⁄4" SWT 6" 2
3
⁄16" 5
3
⁄8" 9
3
⁄16” 3
1
⁄2" 4.9
551706A 1" NPT 6
3
⁄4" 2
3
⁄16" 5
3
⁄8" 9
3
⁄4” 3
1
⁄2" 4.9
551766A 1" press 6
3
⁄4" 2
3
⁄16" 5
3
⁄8" 9
3
⁄4” 3
1
⁄2" 4.9
551796A 1" SWT 7" 2
3
⁄16" 5
3
⁄8" 9
3
⁄4” 3
1
⁄2" 4.9
551716* -- 3
3
⁄4” 2
3
⁄16" 5
3
⁄8" 9
1
⁄4" 3
1
⁄2" 4.4
* Body only, no end connection fittings. Source separately, see Caleffi
catalog for end connection code numbers.
Code A Lay length
551765A
3
⁄4" press 4
5
⁄8"
551766A 1" press 4
3
⁄4"