| 摘要 |
The device has high pressure and low pressure paths (3,4) in a housing (2), a choke element (5), a control head (9) containing a control medium (13) separated from the low pressure path by a membrane (12) mechanically connected to the choke element and an externally driven device for overdriving the choke element. The choke element can be driven as a shut-off element. The device can be in the form of a Peltier element for cooling the control head. |
