Load valve
VTC500
- Accurate control of the return water temperature.
- Easy installation. No need of adjustment valve.
- Easy but normally not required maintenance.
The series VTC500 is a thermic valve used for solid fuel boilers up to 150 kW. The load valve makes sure that the boiler gets up to a high combustion temperature so as to ensure the lowest possible emissions. Above all, the valves make sure that the return temperature to the boiler is kept high and guaranteed over the entire combustion cycle which enables a higher level of boiler efficiency, reduced tarring and increased life span of the boiler.
Product range
VTC511, Internal thread
| Art.no. | Reference | DN | Kvs | Opening temperature | Connection | A [mm] | B [mm] | C [mm] | D [mm] | Weight [kg] | Replaces |
| 51020100 | VTC511 | 25 | 9 | 50°C ± 5°C | Rp 1" | 93 | 34 | 69 | 47 | 0,84 | 11400600 |
| 51020200 | VTC511 | 25 | 9 | 55°C ± 5°C | Rp 1" | 93 | 34 | 69 | 47 | 0,84 | 11400700 |
| 51020300 | VTC511 | 25 | 9 | 60°C ± 5°C | Rp 1" | 93 | 34 | 69 | 47 | 0,84 | 11400400 |
| 51021100 | VTC511 | 25 | 9 | 65°C ± 5°C | Rp 1" | 93 | 34 | 69 | 47 | 0,84 | |
| 51020400 | VTC511 | 25 | 9 | 70°C ± 5°C | Rp 1" | 93 | 34 | 69 | 47 | 0,84 | 11400100 |
| 51020600 | VTC511 | 32 | 14 | 50°C ± 4°C | Rp 1¼“ | 105 | 38 | 75 | 55 | 1,4 | 11401100 |
| 51020700 | VTC511 | 32 | 14 | 55°C ± 4°C | Rp 1¼“ | 105 | 38 | 75 | 55 | 1,4 | 11401200 |
| 51020800 | VTC511 | 32 | 14 | 60°C ± 4°C | Rp 1¼“ | 105 | 38 | 75 | 55 | 1,4 | 11400800 |
| 51021200 | VTC511 | 32 | 14 | 65°C ± 4°C | Rp 1¼“ | 105 | 38 | 75 | 55 | 1,4 | |
| 51020900 | VTC511 | 32 | 14 | 70°C ± 4°C | Rp 1¼“ | 105 | 38 | 75 | 55 | 1,4 | 11400200 |
VTC512, External thread
| Art.no. | Reference | DN | Kvs | Opening temperature | Connection | A [mm] | B [mm] | C [mm] | D [mm] | Weight [kg] |
| 51021500 | VTC512 | 25 | 9 | 50°C ± 5°C | G 1¼" | 93 | 34 | 69 | 47 | 0,80 |
| 51021600 | VTC512 | 25 | 9 | 55°C ± 5°C | G 1¼“ | 93 | 34 | 69 | 47 | 0,80 |
| 51021700 | VTC512 | 25 | 9 | 60°C ± 5°C | G 1¼“ | 93 | 34 | 69 | 47 | 0,80 |
| 51022500 | VTC512 | 25 | 9 | 65°C ± 5°C | G 1¼“ | 93 | 34 | 69 | 47 | 0,80 |
| 51021800 | VTC512 | 25 | 9 | 70°C ± 5°C | G 1¼“ | 93 | 34 | 69 | 47 | 0,80 |
| 51022000 | VTC512 | 32 | 14 | 50°C ± 4°C | G 1½" | 105 | 38 | 75 | 55 | 1,3 |
| 51022100 | VTC512 | 32 | 14 | 55°C ± 4°C | G 1½" | 105 | 38 | 75 | 55 | 1,3 |
| 51022200 | VTC512 | 32 | 14 | 60°C ± 4°C | G 1½" | 105 | 38 | 75 | 55 | 1,3 |
| 51022600 | VTC512 | 32 | 14 | 65°C ± 4°C | G 1½" | 105 | 38 | 75 | 55 | 1,3 |
| 51022300 | VTC512 | 32 | 14 | 70°C ± 4°C | G 1½" | 105 | 38 | 75 | 55 | 1,3 |
Installation support
Replace thermostat in VTC500
Installation examples
Documents
| Name | Download |
| Installation instruction VTC500 |
|
Technical data
Technical data
| Pressure class: | PN 10 |
| Differential pressure, max.: | 100 kPa |
| Differential pressure A - B, max.: | 30 kPa |
| Leakrate A - AB: | max. 1% of Kvs |
| Leakrate B - AB: | max. 3% of Kvs |
| Rangeability Kv/Kv min: | 100 |
| Conformity: |
|
| Media, Heating water: | in accordance with VDI2035 |
| Media, Water/Glycol mixtures: | max. 50 % |
| Media, Water/Ethanol mixtures: | max. 28 % |
| Media temperature, max.: | +110 °C |
| Media temperature, min.: | 0 °C |
| Connections, Internal thread (Rp): | EN 10226-1 |
| Connections, External thread (G): | ISO 228/1 |
| Material, Valve body and cover: | Nodular iron, EN-JS 1050 |
Conformity
Flow pattern
Dimensioning
Accessories and spare parts
Options
| Art No. | Reference | Designation | |
 |
57060500 | LTC801 | ESBE LTC801 Shut-off valves / Adapters G1½" x G1", 3pcs. |
|
57060600 | LTC801 | ESBE LTC801 Shut-off valves / Adapters G1½" x G1¼", 3pcs. |
|
57060700 | LTC801 | ESBE LTC801 Shut-off valves / Adapters G1½" x G1½", 3pcs. |
|
57060800 | LTC801 | ESBE LTC801 Shut-off valves / Adapters G1½" x G2", 3pcs. |
|
57060900 | LTC801 | ESBE LTC801 Shut-off valves / Adapters G1½" x CPF 28mm, 3pcs. |
 |
57020100 | VTC951 | ESBE VTC951 Thermostat 50°C |
|
57020200 | VTC951 | ESBE VTC951 Thermostat 55°C |
|
57020300 | VTC951 | ESBE VTC951 Thermostat 60°C |
|
57020800 | VTC951 | ESBE VTC951 Thermostat 65°C |
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57020400 | VTC951 | ESBE VTC951 Thermostat 70°C |
 |
57020600 | VTC952 | ESBE VTC952 Thermometer, 3pcs |
 |
57020700 | VTC953 | ESBE VTC953 Insulation, ≥ DN32 |
Spare parts
| Art No. | Reference | Designation | |
|
57020500 | VTC951 | ESBE VTC951 Thermostat 75°C |
 |
57020900 | LTC922 | ESBE LTC922 Jointing set VTC/LTC, 3pcs of fibre gasket 1½". |
Download area
Download area
| Type | Preview | Download |
| Data Sheet | VTC500 |
|
| Installation instruction | VTC500 |
|
| Certificate | Declaration of Conformity, VTC500 |
|
| Certificate | Building Product Declaration BPD3, VTC500 |
|
| Certificate | EAC certificate (RU), VTC500 |
|
| Certificate | Certificate of conformity UA, VTC500 |
|
| Image | VTC511, high res |
|
| Image | VTC512, high res |
|
| 2D Image | VTC510 |
|
Related materials
Related products
 |
ATA200 | The series ATA200 is a control device for regulating the temperature of solid fuel boilers. | Data Sheet | Installation instruction |
 |
VTC400 | The Series VTC400 are load valves with higher kvs values and flexibility. Available with fixed and adjustable temperature setting. | Installation instruction | |
 |
CTF150 | The series CTF150 is typically used for on/off control of circulation pumps and load units. | Data Sheet | Installation instruction |
 |
VFA200 | ESBE filling valves series VFA200 for the filling of heating system and other closed fluid systems. | Installation instruction | |
 |
LTC300 | The series LTC300 is a load unit with integrated high efficiency pump. | Data Sheet | Installation instruction |
 |
VTC300 | The series VTC300 is a compact and accurate load valve used for solid fuel boilers up to 30 kW. | Data Sheet | Installation instruction |
 |
VST200 | The series VST200 prevents excess temperatures in solid fuel fired boilers. | Data Sheet | Installation instruction |
 |
VDA100 | ESBE Draining valves series VDA100, draining valves for boilers, hot water tanks, pipes etc. | Data Sheet |
Applications
Applications
Complete solid fuel application with domestic hot water and solar system.
Efficient storage tank loading with circulation pump of own choise.