CDC Pneumatics Stop Fittings
Automatic Air Shut Off for Safer Pneumatic Tube Connection
CDC Pneumatics Stop Fittings are designed to automatically block compressed air flow when pneumatic tubing is disconnected.
When the tube is removed, the internal valve shuts off the airflow to help reduce unnecessary air discharge and improve safety during pneumatic piping changes. Once the tube is reconnected, compressed air can flow again automatically.
CDC Stop Fittings are especially useful in pneumatic systems where tubing connections are frequently changed, removed or serviced.
| Fluid | Compressed Air |
| Working Pressure | 0–150 PSI / 0–9.9 kgf/cm² / 0–990 kPa |
| Negative Pressure | -29.5 inHg / -750 mmHg / -750 Torr |
| Working Temperature | 0°C to 60°C (32°F to 140°F) |
| Applicable Tube | Polyurethane and Nylon |
| Function | Automatic Air Shut-Off When Tube Is Disconnected |
| Tube Sizes | Metric and Inch Sizes Available |
| Thread Options | BSPT (R), BSPP (G), NPT and other options depending on model |
- When the tube is removed, the air is completely blocked. When connected again, the air is to flow
for the purpose of ensuring good maintenance or safety of the device. - With the stop fitting installed, compressed air is supplied only when the tube is connected
Stop Fitting Models
SPC
SPL
SPU
SPUM
Frequently Asked Questions (FAQs)
A pneumatic stop fitting is a push-in fitting with an internal valve that automatically blocks compressed air flow when the tubing is disconnected.
When the pneumatic tube is removed, the internal valve closes and blocks airflow. When the tube is reconnected, the valve opens and compressed air can flow again.
A stop fitting helps prevent continuous compressed air discharge when tubing is disconnected, making it useful for systems where pneumatic tubes are frequently changed or removed.
A 3-way hand valve can discharge residual pressure while blocking incoming compressed air, which is useful when servicing or inspecting pneumatic equipment.
No. The catalogue specifies compressed air as the applicable fluid and states that these fittings should not be used for water applications.
AIROTECH SOLUTIONS supplies CDC Pneumatics Stop Fittings and related pneumatic components in Malaysia. Contact our team with your required model number, tube size, thread size or application requirements for product selection and quotation.
Why Choose CDC Pneumatics Stop Fittings
Automatic Air Isolation
Automatically blocks compressed air flow when the pneumatic tube is disconnected.
Improved Maintenance Safety
Helps reduce uncontrolled air discharge during tube replacement, maintenance or pneumatic piping changes.
Quick Tube Connection
One-touch push-in design allows pneumatic tubing to be connected and disconnected conveniently.
Industrial Pneumatic Design
Designed for compressed air systems used in machinery, automation and general industrial applications.
Looking for a CDC Pneumatics Stop Fitting Model?
Send us your CDC model number, tube size, thread size or application requirements. Our team can assist with product selection, availability and quotation.

