Mosmatic 90.055 stainless steel check valve with soft spring, rated for 5,000 PSI, featuring a 2.4-inch body, 3/8-inch NPTF inlet, and 1/4-inch NPTF outlet.

Description

The Mosmatic 90.055 Check Valve is a stainless steel (INOX) one-way valve equipped with a soft spring, making it ideal for low-pressure applications where minimal opening force is required. With an opening pressure of ~1.5 psi and closing pressure of ~2 psi, this valve allows for smooth, low-resistance fluid flow while maintaining backflow protection.

Designed with a 3/8″ NPTF inlet and a 1/4″ NPTF outlet, the 90.055 is rated up to 5000 psi and built for industrial use, including gentle flow systems, misting, and delicate fluid handling applications.

Applications:

• Low-pressure fluid control

• Misting and spray systems

• Car wash and detergent dosing

• High-precision pneumatic or hydraulic lines

Features:

• INOX stainless steel construction

• Soft spring for low opening pressure (~1.5 psi)

• 5000 psi max pressure rating

• Compact 2.4″ length

• 3/8″ NPTF inlet x 1/4″ NPTF outlet

Specs

Material: Stainless Steel (INOX)
Max Pressure: 5000 psi
Opening Pressure: ~1.5 psi
Closing Pressure: ~2 psi
Inlet: 3/8″ NPTF
Outlet: 1/4″ NPTF
Length: 2.4″
Nominal Width: 1/4″
Temperature: 200°F
Weight: 0.4 lbs

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