Overview of Primary Product

ManualsBrandsCaleffi ManualsAir EliminatorsAir Vent for Series 551

DISCAL

deaerator

551 series

Function

Deaerators are used to continuously remove the air contained in the

hydraulic circuits of heating and cooling systems. The air discharge

capacity of these devices is very high. They are capable of

automatically removing all the air present in the system down to

micro-bubble level, with very low head losses.

The circulation of fully deaerated water enables the equipment to

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

localised overheating or mechanical damage.

The threaded connection product is available in versions for

installation to horizontal or vertical pipes.

Flanged and weld-end DISCAL

deaerators are supplied complete

with hot pre-formed shell insulation to ensure perfect thermal

insulation when used in both hot and chilled water systems.

CALEFFI

Product range

551 series DISCAL

deaerator for horizontal pipes with drain sizes 3/4”–2”

551 series DISCAL

deaerator for horizontal pipes, compact version sizes 3/4”

551 series DISCAL

deaerator for horizontal pipes with olive connections, compact version sizes compression ends for Ø 22 copper pipe

551 series DISCAL

deaerator for horizontal pipes with flanged connections and pre-formed insulation with drain sizes DN 50–DN 150

551 series DISCAL

deaerator for horizontal pipes with weld ends and pre-formed insulation with drain sizes DN 50–DN 150

551 series DISCAL

deaerator for vertical pipes, compact version sizes 3/4”, 1”

551 series DISCAL

deaerator for vertical pipes with olive connections, compact version sizes Ø 22 with nuts for copper pipe

01060/10 GB

replaces 01060/06 GB

series

551 threaded 551 flanged and weld ends

Materials:

Body: brass EN 12165 CW617N epoxy resin coated steel

Internal element: PA66G30; stainless steel (compact version) stainless steel

Float: PP PP

Float guide: brass EN 12164 CW614N brass EN 12164 CW614N

Stem: brass EN 12164 CW614N brass EN 12164 CW614N

Float lever: stainless steel stainless steel

Spring: stainless steel stainless steel

Hydraulic seals: EPDM EPDM

Drain cock: - brass EN 12165 CW617N, chrome plated

Performance:

Medium:

water, non-hazardous glycol solutions excluded water, non-hazardous glycol solutions excluded

from the guidelines of directive 67/548/EC from the guidelines of directive 67/548/EC

Max. percentage of glycol: 50% 50%

Max. working pressure: 10 bar 10 bar

Max. discharge pressure: 10 bar 10 bar

Working temperature range: 0–110°C 0–110°C

Connections:

Main: 3/4”, 1”, 1 1/4”, 1 1/2”, 2” F DN 50 - 65 - 80 - 100 - 125 - 150 weld ends;

with compression ends for Ø 22 mm copper pipe DN 50 - 65 - 80 - 100 - 125 - 150 flanged PN 16

to be coupled with counterflanges EN 1092-1

Drain: 1/2” F (with plug) 1” M (with plug)

Technical specifications

ACCREDITED

ISO 9001 No. 0003

ISO 9001 FM 21654

Summary of content (6 pages)

PAGE 1
CALEFFI DISCAL® deaerator 551 series 01060/10 GB ACCREDITED ISO 9001 FM 21654 ISO 9001 No. 0003 replaces 01060/06 GB Function Deaerators are used to continuously remove the air contained in the hydraulic circuits of heating and cooling systems. The air discharge capacity of these devices is very high. They are capable of automatically removing all the air present in the system down to micro-bubble level, with very low head losses.
PAGE 2
Technical specification of insulation for flanged models from DN 50 to DN 100 Technical specification of insulation for flanged models DN 125 and DN 150 Inner part Material: rigid closed cell expanded polyurethane foam Thickness: 60 mm Density: 45 kg/m3 Thermal conductivity (ISO 2581): 0,023 W/(m·K) Working temperature range: 0–105°C Inner part Material: Thickness: Density: - inner part: - outer part: Thermal conductivity (ISO 2581): External cover Material: Thickness: Reaction to fire (DIN 4102): clos
PAGE 3
Velocity The amount of air which can remain dissolved in a water solution is a function of pressure and temperature. This relationship is governed by Henry’s Law and the graph below allows the physical phenomenon of the air content release of the fluid to be quantified. As an example, at a constant absolute pressure of 2 bar, if the water is heated from 20°C to 80°C, the amount of air released by the solution is equal to 18 l per m3 of water.
PAGE 4
- When cleaning, simply unscrew the part of the body containing the automatic air vent (4). On threaded models without a drain, this part 4 cannot be removed (5). 2 4 A 1 Flanged and weld-end deaerators are equipped with a cock (A) that has the dual function of releasing large quantities of air when the system is being filled and of removing the impurities that float on top of the water.
PAGE 5
DN 150 DN 125 DN 100 DN 80 DN 65 1 1/2" 2” DN 50 1 1/4" Vertical version 1" 400 3/4" ∆p (mm w.g.
PAGE 6
Application diagram T T P T F A Shut-off valve F Flow switch T Zone valve Ball valve Safety thermostat Control pocket Anti-vibration joint Regulator Gas filter Sensor pocket Gas regulator Safety valve Y-strainer Backflow preventer Pump BALLSTOP Expansion vessel AUTOFLOW® Thermometer 3-way valve Flow meter A T Differential by-pass valve Pressure switch Temperature probe P Fuel shut-off valve Automatic filling unit SPECIFICATION SUMMARY DISCAL® 551 series Deaerator, version wit