Mosmatic Check Valve – 90.058 – 3", IN 1/4" NPTF x OUT 3/8" NPTF – INOX – 5000 psi – Soft Spring

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 psiOpening Pressure: ~1.5 psiClosing Pressure: ~2 psiInlet: 1/4" NPTFOutlet: 3/8" NPTFLength: 3"Nom