Mosmatic Check Valve – 90.038 – 3", IN 1/4" NPTF x OUT 3/8" NPTF – Brass – 4000 psi – Soft Spring

The Mosmatic 90.038 Check Valve is a brass-bodied valve engineered for applications requiring low opening pressure, made possible by its soft spring (~1.5 psi opening, ~2 psi closing). With a 1/4" NPTF inlet and 3/8" NPTF outlet, this model is ideal for fluid systems that need a smooth pressure transition and anti-backflow protection. Its 3" length offers added flow stability, while the 4000 psi rating makes it suitable for general-purpose fluid and pneumatic installations. Applications: Car wash and cleaning systems Light-duty spray and dosing lines Low-resistance backflow prevention Pneumatic and fluid step-up configurations Features: Brass construction for reliability and economy Soft spring for low-pressure response 1/4" NPTF inlet to 3/8" NPTF outlet Compact 3" form factor Pressure rated to 4000 psi   Specs Material: BrassMax Pressure: 4000 psiOpening Pressure: ~1.5 psiClosing Pressure: ~2 psiInlet: 1/4" NPTFOutlet: 3/8" NPTFLength: 3"Nominal Width: 1/4"Temp