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DISCAL

air separator

Installation, commissioning and servicing instructions

Product range

551 series

DISCAL

Sizes ¾" sweat; ¾" NPT female (A without service check valve, AC with service check)

551 series

DISCAL

Sizes ¾" - 1" - 1 ¼" - 1 ½" - 2" NPT female; 1" - 1 ¼" - 1 ½" - 2" sweat

(A without service check valve, AC with service check)

551 series

DISCAL

Sizes 1" - 1 ¼" press (A without service check valve, AC with service check)

551 series

DISCAL

Sizes 2" – 6" ANSI

NA551 series DISCAL

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

Sizes 2" – 12" ANSI

NA5519 series DISCAL

Sizes ¾" and 1" sweat

Function

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

micro-bubble level.

The circulation of fully de-aerated water enables the equipment to

operate under optimum conditions, free from any noise, corrosion,

localized overheating 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.

air separator for horizontal pipes, in brass compact with drain

air separator for horizontal pipes, in brass with drain

air separator for horizontal pipes, in steel with flanged connections with drain

air separator for vertical pipes, in brass compact with drain

www.caleffi.com

551- NA551 - NA519 Series

38456.08