Sealco Inline Quick Release And Holding Valve - 3800

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Stock Code:
173800
Hamilton
Out of Stock
Christchurch
Out of Stock
Price:
$90.00 Excl. GST
Unavailable for Online Purchase
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Sealco 3800 Inline Quick Release & Holding Valve

The Sealco 3800 is a compact and durable inline quick release and holding valve designed for heavy‑duty pneumatic and air‑brake systems. It combines pressure holding and quick exhaust functions to optimise air flow control - making it ideal for applications such as lift axles, spring brake circuits, gates and locking devices where controlled air release and retention are essential.

 

Key Features & Benefits

  • Dual‑function design: Acts as both a pressure holding valve and a quick release valve, improving responsiveness and stability in pneumatic circuits.
  • Inline mounting: Compact profile allows installation directly into air lines with minimal space usage.
  • Fast venting: Vents pressure quickly at the valve rather than back toward the supply source - improving brake or suspension release performance.
  • Pressure retention: The holding feature helps retain delivery pressure during small supply side fluctuations, preventing unwanted brake application or loss of function.
  • Rugged construction: Built for long‑term performance in demanding truck, trailer and industrial environments.

 

Applications

The 3800 valve is ideal for:

  • Lift axle and spring brake circuits where rapid air release and secure pressure holding are needed.
  • Gate and locking devices where stable pressure must be maintained until exhaust is desired.
  • Systems where rapid venting enhances brake or suspension performance and control.

 

Why Choose Sealco?

Sealco products are engineered for reliability, durability, and consistent performance in demanding commercial vehicle and heavy-duty pneumatic systems. With a strong focus on quality and proven engineering, Sealco provides dependable valves and components designed to perform in the harsh operating conditions found in trucks, trailers, and other heavy-vehicle applications. Trusted by fleet operators, workshops, and OEMs, Sealco delivers professional-grade products that help maintain safe, efficient, and reliable vehicle systems.

Part Number Inlet Port (NPT) Outlet Port (NPT) Height Width
3800 1/4" 1/4" 1 15/16" 1 9/16"

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