Alwa-Kombi-4 (V1800) Circulation throttle valve
 |
| Throttle and shut-off valve for potable water circulation loops for balancing according to DVGW worksheets W551 and W552. Retrofittable automatic temperature control with support of thermal disinfection. Draining support with adapter (accessory). Valve housing without side connections for easy insulation. Cavity-free insert with maintenance-free spindle sealing. Handwheel thread isolated from the flow. Visible digital pre-setting dial with concealed pre-setting ring. Very precise due to factory calibration. |
| For potable water circulation systems. |
|
| Approvals |
DVGW approved, conforms with KTW requirements |
| Materials |
Valve housing and all parts with contact to the flow made of corrosion resistant red bronze |
| Body pattern |
Y-pattern |
| Pre-setting |
yes |
| Position indication |
Visible, digital pre-setting display with concealed pre-setting ring |
| Automatic balancing support |
yes |
| Draining/filling support |
yes |
| Integrated non-return device |
no |
| Max. media temperature |
130 oC |
| Static pressure |
PN16 |
| Additional description |
Suitable connections see 'Connections for Alwa-valves'. |
| DN size | Port diameter | Connection size | Port connection type | Kvs value | Type |
|---|
| mm | inch | mm | | | |
|---|
| 15 | G3/4 | — | external threads | 2,7 | V1810X0015  | | 20 | G1 | — | external threads | 6,4 | V1810X0020 | | 25 | G1 1/4 | — | external threads | 6,8 | V1810X0025 | | 32 | G1 1/2 | — | external threads | 16 | V1810X0032 | | 40 | G1 3/4 | — | external threads | 16 | V1810X0040 |
| DN size | Port diameter | Connection size | Port connection type | Kvs value | Type |
|---|
| mm | inch | mm | | | |
|---|
| 15 | R1/2 | — | internal threads | 2,7 | V1810Y0015 | | 20 | R3/4 | — | internal threads | 6,4 | V1810Y0020 | | 25 | R1 | — | internal threads | 6,8 | V1810Y0025 | | 32 | R1 1/4 | — | internal threads | 16 | V1810Y0032 | | 40 | R1 1/2 | — | internal threads | 16 | V1810Y0040 |
| DN size | Port diameter | Connection size | Port connection type | Kvs value | Type |
|---|
| mm | inch | mm | | | |
|---|
| 15 | — | 15 | Mapress fittings | 2,7 | V1816Y0015 | | 15 | — | 18 | Mapress fittings | 2,7 | V1816Y0018 | | 20 | — | 22 | Mapress fittings | 6,4 | V1816Y0020 | | 25 | — | 28 | Mapress fittings | 6,8 | V1816Y0025 | | 32 | — | 35 | Mapress fittings | 16 | V1816Y0032 | | 40 | — | 42 | Mapress fittings | 16 | V1816Y0040 |
| DN size | Port diameter | Connection size | Port connection type | Kvs value | Type |
|---|
| mm | inch | mm | | | |
|---|
| 15 | — | 15 | Sanpress fittings | 2,7 | V1817Y0015 | | 15 | — | 18 | Sanpress fittings | 2,7 | V1817Y0018 | | 20 | — | 22 | Sanpress fittings | 6,4 | V1817Y0020 | | 25 | — | 28 | Sanpress fittings | 6,8 | V1817Y0025 | | 32 | — | 35 | Sanpress fittings | 16 | V1817Y0032 | | 40 | — | 42 | Sanpress fittings | 16 | V1817Y0040 |
| Description | Additional Product Type |
|---|
| Temperature-controlled actuator for 50...60 degree C (122...140 degree F) temperature range, conforms with DVGW, W551 and W552 | VA2400A002 | | Temperature-controlled actuator for 40...65 degree C (104...149 degree F) temperature range | VA2400B002 | | Draining adapter | VA3400A001 | | Thermometer | TH07K | | Insulation shells, for valves DN10 and DN15 | VA2510C015 | | Insulation shells, for valves DN20 | VA2510C020 | | Insulation shells, for valves DN25 | VA2510C025 | | Insulation shells, for valves DN32 | VA2510C032 | | Insulation shells, for valves DN40 | VA2510C040 | | Insulation shells, for valves DN50 | VA2510C050 | | Sampling valve. For all sizes. Only in conjunction with drain adapter VA3400A001 | VA3400C001 |
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