Pieces 1/4" Hexagonal Air Check Valve, One-Way Check Valve, For Boiler Pressure Tank

Excellent Brass Material: The valve body is cast from brass, making it healthy and environmentally friendly, explosion-proof, and pressure-resistant, thus extending its service life. Pressure and Corrosion Resistance: Pressure and corrosion resistant, brass valve body, sufficient weight, good sealing, safe and secure. Practical Design: With a 1/4-inch internal thread interface, suitable for pipe thread sizes that meet market specifications. Good Performance: This is a one-way valve that prevents backflow and ensures excellent airtightness, used in boilers and pressure vessels, and in the petroleum, chemical, food, and other industries.