Safety valve for pressure cooker - has weight in casing and two floating ball-valves released by lever on valve

摘要

The relief valve has a weight (18) enclosed in a cylinder. The cylinder is closed by a cap (3). The cap is fitted with a control lever (14). The weight (18) rests on a valve fitted with two ball valves (24). A side fitting (9) connects with a pressure gauge (8) through a passage (7) and pressure is released through a vent (5). The relief valve is screwed in by a thread (2) and tightened onto the end flange.