Disc valve for sampling erosive process streams

Patent · Tue Jan 07 00:00:00 EST 1986

OSTI ID:7152110

Mrochek, J E; Dinsmore, S R; Chandler, E W

A four-port disc valve is described for sampling erosive, high temperature process streams. A rotatable disc defining opposed first and second sampling cavities rotates between fired faceplates defining flow passageways positioned to be alternatively in axial alignment with the first and second cavities. Silicon carbide inserts and liners composed of [alpha] silicon carbide are provided in the faceplates and in the sampling cavities to limit erosion while providing lubricity for a smooth and precise operation when used under harsh process conditions. 1 fig.

• DOE Contract Number: W-7405-ENG-26
• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): US 4562748; A
• Application Number: PPN: US 6-641223
• OSTI ID: 7152110
• Resource Relation: Patent File Date: 16 Aug 1984
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
GASES
SAMPLING
SAMPLERS
VALVES
DESIGN
WEAR RESISTANCE
LINERS
SILICON CARBIDES
CARBIDES
CARBON COMPOUNDS
CONTROL EQUIPMENT
EQUIPMENT
FLOW REGULATORS
FLUIDS
MECHANICAL PROPERTIES
SILICON COMPOUNDS
320303* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Equipment & Processes
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)