| Title | Date Posted | Size | ||
|---|---|---|---|---|
| Declaration of conformity - Motorised & Actuated Valve - V4073A1039 Mid-position valve 22 mm …/U, …/B (Multilingual) | 10/2023 | 1425632 kb |
PDF
|
|
| Declaration of conformity - 3-Port Motorised Valve - V4073A1062 …/U,…/B (Multilingual) | 10/2023 | 1424931 kb |
PDF
|
|
| Declaration of conformity - Motorised Mid-position Diverter Valve - V4073A1088 …/U, …/B (Multilingual) | 10/2023 | 1537865 kb |
PDF
|
| Title | Date Posted | Size | ||
|---|---|---|---|---|
| No results found for "brochure". |
| Title | Date Posted | Size | ||
|---|---|---|---|---|
| No results found for "brochure". |
| Title | Date Posted | Size | ||
|---|---|---|---|---|
| Installation Instructions for V4073A Motorised Mid-Position Valve (English) | 05/2023 | 9265028 kb |
PDF
|
| Controlled Media | Water, Water-Glycol Mixture according to VDI 2035 |
|---|---|
| Valve Ball Material | EPDM Rubber Ball |
| Approvals and Standards | UL Recognized: File MH11826, |
| Warranty | 5 years |
| Connection Type | Compression |
| Differential pressure for close-off (Max) | 8 psi, 55 kPa |
| Fail-Safe Operation Type | Spring Return to port A |
| Flow Coefficient | 9.5 Cv; 8.1 Kv |
| Media Temperature (Min) | 40 °F, 5 °C |
| Media Temperature (Max) | 190 °F, 88 °C |
| Actuator Opening Time | 30 sec |
| Replacement Motor | 40002737-003 |
| Shipping and Storage Temperature (Min) | 5 °C |
| Static Pressure Rating | 125 psi, 862 kPa |
| Valve Body Material | Brass |
| Valve Body Pattern | Three-way, Mid-position |
| Valve Plug Material | Buna-N (NBR) Rubber |
| Valve Seat Material | Brass |
| Valve Start Position | Port A Normally Closed |
| Valve Stem Material | Stainless Steel |
The V4073A valve has been designed to control the flow of water in domestic central heating systems, where both radiator and hot water cylinder circuits are pumped. It is typically suited for small to medium sized installations.
The V4073A mid-position diverter valve should be used in conjunction with a room thermostat and cylinder thermostat to provide full temperature control of a conventional, fully pumped central heating installation. When used in this way, the control system is known as Sundial Y Plan and the components can be connected together using the Sundial Plan Wiring Centre which has dedicated terminations and there is no need for a wiring diagram.
| Image | SKU | Name | |
|---|---|---|---|
| No items found. |
| Image | SKU | Name | |
|---|---|---|---|
![]() |
40002737-003/U | Replacement Motor Kit 240V (V4043/V4044/V4073) supplied with spare connectors, screws and full instructions | Sign In to View Pricing |
![]() |
272742A/U | Replacement ball and O-ring kit | Sign In to View Pricing |

