Abstract
An actuator used with a flame- failure cut-off valve comprises a pressurised gas filled system consisting of a small bulb 10 locked in a pilot gas flame and connected by a capillary tube 11 to a capsule 20 in the form of a pair of close fitting corrugated plates. The capsule is connected to operate a valve plate 16 with an adjusting element 21 and the cap and the valve plate are prestressed in the closed position. Dimensions of the bulb and capsule and pressures for the gas are given.
| Original language | English |
|---|---|
| Patent number | GB2057686A |
| IPC | F23N3/04,G05D23/12 |
| Priority date | 29/08/79 |
| Filing date | 29/08/80 |
| Publication status | Published - 1 Apr 1981 |
| Externally published | Yes |