The FIRŠT valves FBV 440C are designed: for bivalent system, where energy is taken from two heating units, for storage tank system for the loading or heat stratification and for diverting application with one inlet and three outlets.
Valves are available in DN 15 – DN 25, with internal or external thread, and are rated PN 10.
The FIRŠT ball valves FBV 440C are valves with three outlets and one intlet.They are used in systems with two heat sources, for the storage tank loading or storage tank heat stratification.
Two types of connections are avaliable: internal threads (FBV 441C), external threads (FBV 442C).
| CODE | TYPE | DN | Kvs | Connection | A | B | C | Weight (kg) | |
|
|
*FBV 441C DN15 Rp ½" | 15 | 6 | Rp ½" | 82 |
41
|
41 | 0,5 | |
| 41208 | FBV 441C DN20 Rp ¾" | 20 |
10
|
Rp ¾" |
94
|
47
|
47 | 0,82 | |
|
|
*FBV 441C DN25 Rp 1" | 25 | 12 | Rp 1" |
106
|
53
|
53 |
1,3
|
| CODE | TYPE | DN | Kvs | Connection | A | B | C | Weight (kg) | |
|
|
*FBV 442C DN15 G ¾" | 15 | 6 | G ¾" | 82 |
41
|
41 | 0,55 | |
| 41208 | FBV 442C DN20 G 1" | 20 | 10 | G 1" | 94 |
47
|
47 | 0,88 | |
|
|
*FBV 442C DN25 G 1 ¼" | 25 | 12 | G 1 ¼" | 106 |
53
|
53 |
1,40
|
* Valves are available on special request
| Nominal pressure: | PN 10 |
| Medium: |
drinking water, water, glycol < 50%, non aggressive liquids, water quality as per VDI 2035 |
| Media temperature: | min. +2°C, max. +110°C |
| Max leakage: | rate A according to EN 12266- 1:2003 |
| Max. diff. pressure: |
3 bar (recommended max. diff. pressure for low noise operation: 2 bar) |
| Connections: |
Rp internal thread (EN 10226-1) G external thread (ISO 228-1) |
| Valve body: | Brass, CW617N |
| Ball | Brass, CW617N |
| Seals: | PTFE, EPDM, FPM |
 S9000 MOD X |
 UNI MOD X |
|
■ S9000 MOD X ■ UNI MOD X |
