1/2" Push-to-Connect 0.7 PSI Cracking Union Check Valve

SMC AKH13-00 Pneumatic Check Valve 1/2" One-Touch Push-to-Connect Union used on end of 1/2" poly tubing in the Bug Spray Applicator and Front/Rear Bumper Blaster

SKU: P-WAT-2738
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$22.75
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The SMC AKH13-00 is a high-performance, straight union-style pneumatic check valve designed for reliable directional flow control in low-pressure air and water systems. Featuring a highly sensitive 0.7 PSI (0.005 MPa) cracking pressure, this valve opens under minimal force while providing immediate, positive backflow prevention to protect sensitive upstream components.


Engineered with premium one-touch push-to-connect fittings on both the inlet and outlet ports, it allows for quick, tool-free installation directly onto 1/2" OD tubing. Its compact, lightweight body makes it ideal for tight plumbing footprints.


Key features and benefits include:

  • Ultra-Low Cracking Pressure: Opens at just 0.7 PSI, making it excellent for low-pressure applications.
  • Tool-Free Installation: Dual 1/2" push-to-connect ports accept polyurethane, nylon, and soft nylon tubing for fast, leak-free connections.
  • Visual Flow Direction: Clearly marked body indicator ensures proper orientation during installation.
  • Straight Union Design: In-line, compact geometry seamlessly integrates into existing tubing runs without adding bulk.
  • Brand: SMC Pneumatics
  • Part Number: AKH13-00
  • Fitting Type: Straight Union (Tube-to-Tube)
  • Connection Size: 1/2" Tube OD (Push-to-Connect)
  • Cracking Pressure: 0.72 PSI (0.005 MPa)
  • Operating Pressure Range: -14.5 PSI to 145 PSI (-100 kPa to 1.0 MPa)
  • Operating Temp. Range: 23F-140F
  • Material: Heavy-duty Composite/Brass Blend with High-Grade Elastomer Seals

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