The SMC 6870090 3/4" Black Polypropylene Poppet Check Valve is designed to ensure consistent one-way flow and prevent backflow in fluid systems. Constructed from durable polypropylene with a glass-filled seat and a stainless steel spring, this check valve provides reliable performance under pressures up to 125 PSI. Ideal for protecting pumps and systems from water hammer, this valve features 3/4" FNPT ports, a 1 PSI cracking pressure, and can be installed in both vertical and horizontal orientations. NSF-listed and built to perform, it’s perfect for water, air, and chemical applications.
✅ One-Way Flow Protection – Prevents backflow to maintain consistent system pressure and flow
✅ 3/4" FNPT x FNPT Ports – Standard threaded connections for quick and secure installation
✅ Durable Polypropylene Body – Corrosion-resistant and chemically compatible with water and many fluids
✅ Glass-Filled Polypropylene Seat – Enhances strength and sealing performance
✅ 1 PSI Cracking Pressure – Opens easily with minimal pressure for efficient flow control
✅ 125 PSI Max Operating Pressure – Suitable for light industrial and commercial applications
✅ Stainless Steel Spring – Provides dependable sealing and long service life
✅ Max Temperature: 140°F – Performs reliably in a wide range of environments
✅ Flexible Installation – Mount vertically or horizontally to suit system layout
✅ NSF Listed – Meets NSF standards for use in potable water systems