A Single Door Non-Return Valve, also known as a Single Disc Check Valve, is designed to automatically prevent reverse flow within a pipeline.

During normal operation, forward flow causes the internal disc to open, allowing media to pass through the valve. When the flow reduces or reverses, the disc closes automatically, helping protect pumps, pipelines and associated equipment from unwanted backflow.

Its compact construction makes this type of non-return valve particularly useful where installation space and weight need to be minimised.

Key Features

• Automatic prevention of reverse flow
• Single-door / single-disc design
• Compact wafer-style construction
• Automatic operation – no external actuator required
• Designed for installation between pipeline flanges
• Helps protect pumps and downstream equipment
• Compact face-to-face dimensions
• Suitable for horizontal or vertical installation where permitted by the specific model
• Robust industrial construction
• Suitable for a variety of process applications
• Simple, reliable operating principle

Typical Applications

• Water supply and distribution
• Pump discharge lines
• Mining and mineral processing
• Water and wastewater treatment
• Petrochemical applications
• Power generation
• Process industries
• Industrial piping systems
• Pumping installations