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Sealco Pressure Protection Valves With Internal Check Valve - 140270
Sealco 140270 One-Way Check Valve
The Sealco 140270 is a durable one-way check valve designed to control airflow direction in commercial vehicle and industrial pneumatic systems. It allows air to flow freely in one direction while preventing reverse flow, helping maintain system pressure and protect critical air circuits from back-feeding or pressure loss.
Key Features & Benefits
- One-way air control: Prevents reverse airflow to maintain pressure integrity within the system.
- Reliable sealing: Ensures consistent performance and reduces unwanted air loss.
- Compact inline design: Easy to install in tight spaces and existing air line layouts.
- Standard port configuration: Compatible with common truck, trailer and industrial pneumatic systems.
- Rugged construction: Built to withstand harsh operating environments and continuous use.
Applications
- Air-brake and suspension systems
- Auxiliary and control air circuits
- Reservoir protection and pressure retention
- General pneumatic systems requiring controlled airflow direction
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.
Always install with vent port downward.
| Type: | Qty: | Size: |
| Inlet Port | 1 | 3/8" NPT |
| Outlet Port | 1 | 3/8" NPT |
Nominal Closing: 60 PSI