Sealco 140380 Pressure Protection Valve, 70 PSI | UnitedBuilt — UnitedBuilt Equipment Skip to content
Quality Water Truck Systems, Tanks & Parts Since 1947
Quality Water Truck Systems, Tanks & Parts Since 1947
Pressure Protection Valve, Air Regulator, 1/4" FNPT, 70 PSI Check Valve, Sealco 140380 - UnitedBuilt Equipment

Sealco 140380 Pressure Protection Valve, 1/4" NPT, 70 PSI

SKU 0006674
Brand Sealco
Availability:
25 in stock | Available on backorder
$0.00 - $0.00
$0.00
$30.00
$30.00 - $30.00
$30.00

Product Images

Images are for representation only and may differ from the actual product.

Questions about this product?

The Sealco 140380 pressure protection valve helps isolate air brake reservoirs and the auxiliary air devices supplied by them when a connected component fails. Its 70 PSI nominal closing pressure is paired with 1/4-inch NPT inlet and outlet ports.

An internal filter and positive one-way check valve are built into the assembly. The valve opens at approximately 10 PSI above its nominal closing pressure. Select it by the required protection setting and plumbing layout; the 70 PSI specification is a closing threshold, not a maximum pressure rating or an adjustable outlet setting.

Features and benefits

Feature Benefit
Pressure protection Closes at its nominal setting to help protect the connected air system when pressure falls.
Integrated one-way check valve Supports reservoir isolation as part of the air-system circuit.
Internal filter Provides filtration within the valve assembly.

Technical specifications

Specification Detail
Manufacturer / part number Sealco / 140380
Inlet and outlet 1/4-inch NPT each
Nominal closing pressure 70 PSI
Opening behavior Approximately 10 PSI above nominal closing pressure
Built-in components Internal filter and positive one-way check valve
Installation orientation Vent facing downward
Dimensions 2.52 inches high × 1.13 inches wide × 2.08 inches deep
Repair kit selection Sealco 140281

Before ordering

Check What to confirm
Required setting Match the 70 PSI nominal closing pressure to the equipment’s air-system requirements.
Connections Confirm 1/4-inch NPT inlet and outlet and the required flow direction.
Mounting orientation Install with the vent facing downward.
Application Use the equipment’s approved pressure-protection circuit; do not select this part as an adjustable air regulator.
Service components The filter and check valve are internal parts of the valve. Order repair kit 140281 separately when rebuilding an existing unit.

Need help confirming the correct valve? Contact UnitedBuilt through online chat, email parts@unitedbuilt.com, or call 602-253-7750 with your existing part number, connection sizes, and application.