| 摘要 |
<p>Compressed gas saving device designed to be implanted in a pipe system connecting a control valve outlet to the inlet of a pressure-user apparatus constituted by a body in which a first passage is provided which passage starts from a first end of the body, provided with means connecting it to the control valve, towards a second end of the body, provided with means connecting it to the said pipe system, the first passage traversing a seat provided in the said body, and adapted to be closed off by a valve returned on the said seat by a spring member, the effect of which is adjustable in intensity by means of a hand-operated adjusting member and tends to oppose the rising force of the valve head generated by the gas flowing from the control valve, whereas a second passage, provided in the body, constitutes a bias of the said first passage, short-circuiting the aforesaid valve head provided with a one-way valve whose flowing direction is that of the gas issued from the pressure-user apparatus, the said adjusting member controlling an indicator means in the form of a visual indicator which is instantly locatable in relation to the external surface of the said body.</p> |
