Check Valves by SMC Pneumatics

SMC offers you top quality check valves, which are a critical component of pneumatic operating systems.

Check valves are a key part of pneumatic control circuits. Sometimes, you’ll hear these units referred to as “non-return valves” because they allow media to flow in only one direction. They perform the same type of function that diodes perform in electrical circuits.

This is a guide from SMC Pneumatics to helping you choose the ideal equipment for your operation.

Integral Fitting Check Valves: Compact, Easy-To-Use Fitting System

This is compact check valve is super light and delivers one-touch fitting performance. All you have to do is push your tubing into the fitting and your non-return valve is ready for action right away. The fitting and check valve are both rated only for compressed air. The pressure range is:

• -14.5psi to 145psi

This is the check valve you need if your operations happen in conditions that tend to be pretty harsh because of its sturdy Delrin body. Beyond its strength and efficacy, this valve is unbelievably affordable, with prices starting below $8.00. Find integral fitting check valve sizes in:

• 4mm
• 6mm
• 8mm
• ¼”
• ?”

Applicable tube materials for check valves:

• Nylon
• Soft nylon
• Polyurethane

Proof pressure: 1.5MPa, (217.5psi.)

Cracking pressure: 0.005MPa, (0.7psi.)

NAK Series Metal Check Valve: Durable Pneumatic Parts & Equipment

This metal check valve a super simple, durable choice for your all your valve needs. Here are the key specifications to know:

• 217 psi proof pressure

• 3 psi cracking pressure
• 145 psi maximum operating pressure
• -5° to 60°C (No freezing) ambient and fluid temperature
• Intended fluid: air

This affordable valve comes in five different sizes. It’s a highly durable and efficient solution for your pneumatic operations.