882.00 EURexcl. VAT · import VAT and duties on delivery
Key specifications
| Connection thread | 3/4" NPT (inlet and outlet) |
|---|---|
| Outlet Orientation | side outlets 1/2" NPT |
| Ambient temperature | 0–79 °C |
| Gas type | natural gas |
| Pilot type | continuously burning pilot (standing pilot) |
| Installation angle limit | up to 90° |
| Adjustment access location | top panel |
| Manual ignition sequence | OFF-PILOT-ON |
1350.00EUR
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Description
Combination gas valve for natural gas systems with a continuously burning pilot. It has 3/4" NPT inlet and outlet connections, plus two 1/2" NPT side outlets. The manual control sequence is OFF-PILOT-ON. Operating ambient temperature is 0–79 °C. Installation is allowed at an angle of up to 90°, and all adjustments are on the top panel.
Further details
| Application | gas boilers, water heaters, floor heaters |
|---|---|
| Built-in components | manual gas cock, pilotstat safety mechanism, 750 mV solenoid valve, pressure regulator |
| Included Components | adapter bushings 3/4" to 1/2" and 1/2" to 3/8" |
| Power supply type | thermopile (powerpile), no external electrical power |
| Safety Feature | automatic fuel shut-off if pilot flame goes out or gas pressure drops |
Choosing and fitting
Valves of this kind are selected by connection thread size, coil voltage, and functional requirements (single or double solenoid, slow-opening, servo-regulated, or multiblock). The coil is often replaceable separately from the valve body. Before ordering, verify that the replacement matches the original's connection size, voltage, and features, and is compatible with the existing burner control and gas pressure switch.
Signs of failure
Common failure modes in valves of this kind are coil burnout, leaking valve seat, drifting outlet pressure, or seized servo regulator. Such faults may show up as the burner failing to light, irregular flame, or safety shut-off. Before replacing the part, test the coil/seat and verify the outlet pressure.
All specifications
| Connection thread | 3/4" NPT (inlet and outlet) |
|---|---|
| Outlet Orientation | side outlets 1/2" NPT |
| Ambient temperature | 0–79 °C |
| Gas type | natural gas |
| Pilot type | continuously burning pilot (standing pilot) |
| Installation angle limit | up to 90° |
| Adjustment access location | top panel |
| Manual ignition sequence | OFF-PILOT-ON |
Part numbers
| SKU | VS820A1054/U |
|---|---|
| Additional article | 534.322.031 |
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