From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Product sheet for automatic air valves for radiators and steam pipes.
| Identifier | ExFiles\Box 78\3\ scan0182 | |
| Date | 1st July 1921 | |
| THE STEAM FITTINGS CO. Ltd., West Drayton, Mdx. AUTOMATIC AIR VALVES. For RADIATORS, STEAM PIPES, etc. Fig. 1. Fig. 2. Fig. 3. THESE AIR VALVES have been designed to meet the demand for a reliable device for Venting Radiators or Steam Pipes. A very sensitive Thermostat, according to whether air or steam surround it, operates a Valve cone and thereby opens or closes a Valve. These Valves are of neat appearance, easy to fit, and most reliable in action. They are made entirely from metal. For re-adjusting, loosen lock nut, screw nipple UP for later, DOWN for earlier closing, and re-fasten the lock nut. | Fig. No. | Highest admiss. Pressure, lbs./sq. in | Price. 3/8'' | Code Word. | Price. 1/2'' | Code Word. | Price. 3/4'' | Code Word. | |---|---|---|---|---|---|---|---| | 1 | 7 | — | — | 7/6 | SOPHORA | 8/6 | SOPHETIN | | 2 | 7 | 10/- | SOPHISTA | 10/- | SOPHORES | 10/6 | SOPHIC | | 3 | 140 | 11/6 | SOPHONIAS | 11/6 | SOPHRON | 12/6 | SOPHICAL | ENQUIRIES and ORDERS should state No. of Figure and Size of Thread or Code Word. L No. 33. 3,000. G.G. 7/21. | ||