Meanings (ES + gloss)
válvula de alivio • válvula de alivio de presión • válvula de escape • válvula de seguridad
A valve set to open at a pressure below that at which a container holding a gas, vapour, etc. (such as a boiler or pressure cooker), would burst, thus reducing the pressure; a relief valve.
Spun glass mattresses are used for lagging the boiler, which has three Ross pop safety valves on the front ring.
[A]nd to show that there was no shortage of steam, Royal Scot, directly we stopped, blew off vigorously from its safety-valves steam that well might have been used in the cylinders…
Word forms