Name: Non Return Valve
Brand: AIRCRAFT
SKU: SG COMP06-45
Price: 197.63 ZAR
Availability: OutOfStock

Non Return Valve

Out Of Stock

Non Return Valve

Stock: Out Of Stock
Brand: AIRCRAFT
Model: SG COMP06-45
Weight: 0.04kg
Dimensions: 4.00mm x 2.00mm x 2.00mm
SKU: SG COMP06-45

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Ex VAT: R 171.85

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AirCraft Non-Return Valve SG-COMP06-45

At a Glance: One-way check valve with threaded connection to stop air flowing back into the compressor line.

The AirCraft SG-COMP06-45 Non-Return Valve (also known as a check valve) is a small but crucial part in a compressor system. Its job is simple and brilliant: it lets air flow in one direction and blocks it from flowing back the other way. That means your system can build pressure efficiently while helping protect the compressor and associated components from backflow and pressure kick-back. If your compressor struggles to start, leaks air back through the line, or you notice pressure dropping unexpectedly after shutdown, a worn non-return valve is often the culprit. Replacing it helps restore proper pressure behaviour and smoother operation.

One-Way Control That Protects Your Compressor: the SG-COMP06-45 Check Valve

Fitted in the air line path where backflow must be prevented, this valve supports reliable pressure retention and correct system cycling. Match the Cat No. SG-COMP06-45 to your compressor’s parts list or existing valve for correct fitment.

Features

Non-return (one-way) operation Allows airflow in one direction and blocks reverse flow.
Threaded connections Designed to screw into compatible ports/fittings.
Metal valve body Durable construction for workshop and compressor conditions.
Service replacement by part number Designed for fitment when matched to SG-COMP06-45.

Benefits

Helps maintain pressure: Reduces pressure loss caused by air flowing back after shut-down.
Easier starts: Prevents backflow that can load the compressor on restart.
Protects components: Helps reduce stress on lines and compressor internals caused by reverse pressure movement.
Improves system reliability: Stable pressure behaviour supports smoother cycling and consistent performance.

Extra Information

Confirm fitment: Match SG-COMP06-45 and check the thread type/size against your existing valve.
Check direction of flow: Install in the correct orientation (look for markings/flow direction if present).
Inspect for contamination: Dirt or debris can stop a check valve from sealing—clean the line if needed.
Leak test after installation: Pressurise the system and check joints with soapy water for a proper seal.

Pro Tip

If you’re replacing a non-return valve because the compressor struggles to start, also inspect the unloader line (if fitted) and listen for leaking at shutdown. A healthy check valve plus a working unloader makes starts noticeably smoother.

Specifications

Description	Spec
Brand	AirCraft
Cat No.	SG-COMP06-45
Product Type	Non-Return Valve (Check Valve)
Function	Prevents reverse airflow / backflow
Body Material	Metal (as pictured)
Connection Type	Threaded male connection (confirm size to existing valve)
Installation	In-line / port fitted (orientation dependent)
Application	Compatible AirCraft compressor system (model dependent)

Safety

Switch off and isolate power before servicing compressor pipework or fittings.
Depressurise the air tank/system completely before removing the old valve.
Wear eye protection when loosening fittings—residual pressure can eject debris.
Use correct thread sealing method where applicable and avoid over-tightening to prevent damage.
After installation, pressurise slowly and check for leaks before returning to full operation.