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Giacomini S.p.A.

Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia

 consulenza.prodotti@giacomini.com

 +39 0322 923372 - giacomini.com

R88, R88I

Datasheet

0111EN  11/2023

Automatic

air vent valves



Technical data

• Temperature range: 5÷120°C

• Max. working pressure: 14 bar

• Max. pressure of air vent operation: 7 bar

• Use fluids: water and glycol solutions (max. 50%)

Materials

• Body: UNI EN 12165 CW617N brass

• O-Ring: EPDM

• Stopper spring: stainless steel

• Internal float: PP-H



Versions and product codes

SERIES

PRODUCT CODE CONNECTIONS

FEATURE

R88

R88Y001

G 1/4”M

-

R88Y002

G 3/8”M

R88I

R88IY002

G 3/8”M

With R160

shut-off valve

R88IY003

R 1/2”

Performance

The table and the graph report the discharge air capacities,

in standard conditions, at the change of the pressure of the

system.

0

0

1

2

3

4

5

6

7

100

200

300

400

500

600

Pressure [bar]

Pressure

[bar]

Air flow rate

[l/h]

1

440

2

510

3

540

4

500

5

400

6

310

7

250

R88 and R88I automatic air vent valves can discharge the

air that formed into the hydraulic circuits of the heating/

cooling or domestic water systems.

This avoids the onset of negative phenomenon, that could

compromise the lifetime and the efficiency of the thermal

system.

The automatic air vent valves perform during the normal

operation of the system, where the air discharge shall

happen intermittently and not continuously, with modest air

amounts to be discharged.

R88

R88I