The FIRŠT FMV 131E, 132E and 133E are compact brass valves for use in small
and medium sized heating and cooling installations.
FIRŠT rotary mixing valves are designed for use:
within commercial & domestic heating systems e.g. radiator, underfloor, radiant panel,
mixing circuits, plant room, heat pumps, HVAC systems and in solar heating systems...
Three types of connections are available:
| Code | Type | DN | Kvs | Connection | A | B | C |
|
Weight (kg) |
| 41249 | FMV141E DN15 Rp ½" | 15 | 4 |
Rp ½"
|
36 | 72 | 56 |
|
|
| 41244 | FMV141E DN20 Rp ¾" | 20 | 6,3 |
Rp 3/4"
|
41 | 82 | 56 |
|
|
| 41242 | FMV141E DN25 Rp 1" | 25 | 10 |
Rp 1"
|
47 | 94 | 59 |
|
|
| 41243 | FMV141E DN32 Rp 1 ¼" | 32 | 15 |
Rp 1 ¼"
|
47 | 82 |
56
|
|
| Pressure class: | PN 10 |
| Medium: |
water, glycol < 50%
water quality as per VDI 2035 |
| Media temperature: | min. -10°C, max. +110°C |
| Leakage (Δ p=1 bar): | max. 0,5% Kvs |
| Max. diff. pressure: | 1 bar |
| Connections: |
Rp internal thread (EN 10226-1)
|
| Valve body: | Brass, CW617N |
| Shaft and rotor: | Brass, CW617N |
| Bushing: | PTFE |
| O-Rings: |
EPDM,FKM |
