Katla termosegistid ESBE VTC 531 on kasutusel tahkeküttekatla ja akumulaatorpaagi vahel, et reguleerida katlasse tagasi voolava vee temperatuuri. Isoleeritud termostaatsegisti sulgeventiilidega ja indikaatoritega.
Termosegisteid kasutatakse sooja tarbevee segamiseks ja väikeste põrandakütteringide temperatuuri reguleerimiseks.
| VTC 531 | Dn | KVS | Temperatuur | A | B | C | D |
| 25 | 8 | 63C +-4C | 197 | 77 | 121 | 110 | |
| 32 | 8 | 63C +-4C | 230 | 77 | 138 | 110 | |
| 40 | 8 | 63C +-4C | 242 | 77 | 143 | 110 | |
| 50 | 12 | 63C +-4C | 260 | 77 | 152 | 110 |
| Nimetus | Kvs |
| VTA332 32-49°C G3/4 DN20-1.2 | 1.2 |
| VTA332 35-60°C G3/4 DN20-1.2 | 1.2 |
| VTA332 35-60°C G3/4 DN20-1.2 | 1.2 |
| VTA333 32-49°C 22/15mm cpf DN20-1.2 | 1.2 |
| VTA333 32-49°C 22mm cpf DN20-1.2 | 1.2 |
| VTA333 35-60°C 22/15mm cpf DN20-1.2 | 1.2 |
| VTA333 35-60°C 22mm cpf DN20-1.2 | 1.2 |
| VTA333 35-60°C 22mm cpf DN20-1.2 | 1.2 |
| VTA362 32-49°C G3/4 DN20-1.2 | 1.2 |
| VTA362 35-60°C G3/4 DN20-1.2 | 1.2 |
| VTA363 35-60°C 22mm cpf DN20-1.2 | 1.2 |
| VTA332 35-60°C G1 DN20-1.3 | 1.3 |
| VTA362 35-60°C G1 DN20-1.3 | 1.3 |
