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Dependable. Compact. Rugged.

HCK4LR Gravity Drain Check Valve

The HCK4 “LR” series of in-line gravity drain check valves are dependable, compact, and rugged. The HCK4 “LR” gravity drain check valves feature a low wide-opening pressure differential suitable for liquid transfer systems and other low-pressure-drop applications. In addition, an optional, specially-designed adapter allows direct replacement of existing 3" and 4" Wolf-Linde and H.A. Phillips gravity drain check valves without repiping.
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HCK4LR Bulletin

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Advantages

The HCK4 “LR” series check valves, typically installed in vertical pipe lines, offer reliable operation. Plated bodies, stainless steel seat discs, and stainless steel springs provide superior corrosion resistance. The lapped metal-to-metal seating facilitates durable closing of these check valves.

Key Features

  • Negligible cracking pressure differential
  • Low wide-opening differential of 0.25 psid (.02 bar)
  • Replacement Kit requires no piping changes to replace
  • Wolf-Linde and H.A. Phillips gravity drain check valve (3″ and 4″)
  • Low bubble leakage tolerance
  • For ammonia, R22, R134a, and other Hansen-approved refrigerants