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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



Technical data

Performance

• Fluid: water for HVAC systems

• Max. working temperatura: 110 °C

• Max. working pressure:

- R276, R277 valves: 20 bar

- R278, R279 valves: 10 bar

Direct way loss of pressure

100

1000

10000

10

100

1000

Q [l/h]

R276

R277

3/4”

R278

R279

3/4”

R278

R279

1”

1” R276

R277

PRODUCT CODE

CONNECTIONS

Kv

R276Y004

G 3/4”F

18,5

R276Y005

G 1”F

36,3

R277Y004

G 3/4”M

18,5

R277Y025

G 1”M

36,3

R278Y004

G 3/4”M

9,3

R278Y005

G 1”M

16

R279Y004

G 3/4”F

9,3

R279Y005

G 1”F

16

By-pass loss of pressure (only for R278, R279 3-way zone valves)

LOCKSHIELD OPENING TURNS

Kv

1

0,35

2

0,70

3

1,23

4

1,95

5

2,60

6

3,00

7

3,07

F.O.

3,20

1000

100

10

Q [l/h]

100

1000

10

5 6

F.O.

7

1

2

3

4

 NOTE. The lockshield on the by-pass conduit must be adjusted using an 8 mm allen key, to reproduce a loss of pressure comparable to that of the system and

to avoid hydraulic failure in the distribution when the flow is deviated on the return to the boiler room.

Materials

• Body and main components: CW617N brass

• Gaskets: PTFE