| 摘要 |
<p>The invention provides a control valve assembly essentially comprising a housing, a check valve member, a safety valve member as well as a support body member. The housing is provided with an inlet chamber, an outlet chamber and a back flow chamber. Between the inlet chamber and the outlet chamber, there is provided a first orifice, and between the outlet chamber and the back flow chamber there is provided a second orifice. The check valve member and the safety valve member are mounted one behind the other one in axial alignment in a support body member and form a modular unit. This modular unit is inserted into the housing such that the first orifice is closed by the check valve member and the second orifice by the safety valve member. I one or both of these valve members need service, the aforementioned modular unit can easily be removed from the control valve assembly and repaired.</p> |
