Pressure regulating valve

US4452267A · kind A · utility

Assignee

• Herion-Werke KG

Inventors

• Helmut Ott · Stuttgart, DE
• Helmut Motzer · Echterdingen, DE

Key dates

• Filing date: Oct 14, 1981
• Grant date: Jun 5, 1984
• Expiry date: Oct 14, 2001

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/86919
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A pressure regulating valve for pneumatic or hydraulic pressure fluids, by means of which a higher primary pressure is regulated to a lower secondary pressure, comprises a housing provided with a primary fluid connection, a secondary fluid connection and a fluid relief connection, a first valve for controlling flow of fluid between the primary fluid connection and the secondary fluid connection and a second valve for controlling flow of fluid between the secondary fluid connection and the fluid relief connection, in which both valves are constructed as seat valves.