| 摘要 |
The valve is for a container in which the pressure is generated by a propellant gas. It consists of a valve body (1), piston (3), spring (5), sealing (6), valve plate (7), container seal (8), piston tube (9), rising tube (10) and glass ball (12). The piston has a proportioner mandrel (4) with a base diameter smaller than that of the piston tube. The piston has a first groove (18) parallel to the mandrel and a second groove (19) parallel to the first one; the profile of both is a max. of 0.15 mm2. The piston has a surface rising from a ring rib (17) to the centre and the sealing edge of the rib has a width of less than 0.25 mm.
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