Mosmatic 90.058 stainless steel check valve features a 3-inch body, 1/4″ NPTF inlet, and 3/8″ NPTF outlet. Engineered for low-pressure applications (1.5 PSI), it includes a soft spring for gentle, reliable sealing—rated to 5,000 PSI working pressure.

Description

The Mosmatic 90.058 Check Valve is a stainless steel (INOX) valve designed for low-pressure activation, ideal for sensitive fluid control systems. Featuring a soft spring, the valve opens at ~1.5 psi and closes around 2 psi, enabling smooth, low-resistance flow while preventing backflow.

With a 1/4″ NPTF inlet and a 3/8″ NPTF outlet, this model offers a stepped connection and supports pressures up to 5000 psi—perfect for high-demand environments that still require soft-flow performance.

Applications:

• Spray and chemical dosing systems

• Industrial fluid control

• Pneumatic or compressed air equipment

• Systems requiring step-up thread configuration

Features:

• INOX stainless steel body

• Soft spring for gentle flow activation

• Rated to 5000 psi

• Threading: 1/4″ NPTF inlet, 3/8″ NPTF outlet

• 3″ body length for steady flow

Specs

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

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