Dart Check Valve

Product Overview:

The Dart Check Valve is a high-pressure, non-return valve engineered for omnidirectional installation and reliable gas-tight sealing in demanding oilfield, gas processing, and high-pressure flowline applications. Featuring a self-locking mechanism and a compact body, this valve allows 360° mounting in horizontal, vertical, or inclined piping runs—delivering fast installation, simple maintenance, and positive backflow prevention up to 20,000 PSI.

Key Features & Advantages:

• Omnidirectional Installation: Flexible 360° installation orientation (horizontal, vertical, or angular) with no flow direction restriction during mounting.

• Self-Locking Gas-Tight Seal: Advanced self-locking internal dart structure ensures leak-tight sealing in natural gas and volatile vapor services.

• High-Pressure Containment: Engineered for severe-duty service across pressure ranges from 2,000 PSI to 20,000 PSI.

• Wide Thermal Tolerance: Operates dependably across severe thermal spectrums from -75°F to +250°F (-60°C to +121°C).

• Corrosion & Sour Service Ready: Available in API 6A material grades AA through HH to withstand corrosive fluids and sour gas 

Technical Specifications:

• Executive Standard: API Spec 6A

• Bore / Size Range: 1" to 4"

• Working Pressure: 2,000 PSI – 20,000 PSI

• Temperature Rating: -75°F to +250°F (-60°C to +121°C)

• Material Classes: AA, BB, CC, DD, EE, FF, HH

• Product Specification Levels (PSL): PSL1 – PSL3

• Performance Requirement Level: PR1

• Service Media: Natural Gas, Crude Oil, Mud, Sour Media