Shut-off valve
Creators
Description
The valve stem of the controlled shut-off valve has a lid and a piston movable in a cylinder. A first cylindrical chamber and a second annular chamber facing the lid are separated by a piston and connected to a low-pressure chamber by ducts extending in the housing of the shut-off valve and connecting lines connected to the ducts outside the housing. The first chamber is also connected to the inlet side of the shut-off valve via a duct extending in the housing and containing at least one control valve actuated by a control line. Closing valves are provided in the connecting lines. A throttle means having a fixed flow cross-section is disposed in the duct of the first chamber inside the housing. The duct of the second chamber has a fixed minimum cross-section
Availability note (English)
U.S. Commissioner of Patents, Washington, D.C. 20231, USA, $.50.Additional details
Publishing Information
- Imprint Pagination
- v p.
- IPC:
- Int. Cl. G21C 9/00.
- IPC
- Int. Cl. G21C 9/00.
- Patent number
- US patent document 4,490,836/A/
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 16078047
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- CONTROL; CYLINDERS; DUCTS; FLUID FLOW; REACTOR COOLING SYSTEMS; VALVES
- Descriptors DEC
- CONTROL EQUIPMENT; COOLING SYSTEMS; EQUIPMENT; FLOW REGULATORS; REACTOR COMPONENTS
Optional Information
- Notes
- PAT-APPL-328703.