Low Pressure Check Valves

Prevent backflow and protect your soft wash and chemical delivery systems with professional low-pressure check valves. Our selection includes poly check valves with Hastelloy springs designed to withstand chemical exposure while ensuring one-way flow in downstream injection, soft wash pumps, and chemical transfer applications.

Complete Low Pressure Check Valve Solutions

• Thread Sizes: 1/2", 3/4", and 1" MPT and FPT configurations for various system requirements
• Chemical Resistant Construction: Polypropylene and fiberglass-reinforced poly bodies with EPDM seals for bleach and chemical compatibility
• Hastelloy Springs: Corrosion-resistant Hastelloy springs that withstand harsh chemicals without degrading
• Pressure Ratings: Designed for low-pressure applications including soft wash systems and chemical injection setups

Whether you're protecting a soft wash pump from backflow, preventing chemical siphoning in downstream systems, or ensuring proper flow direction in chemical delivery lines, low-pressure check valves provide reliable one-way flow control. The chemical-resistant materials ensure long service life even when exposed to bleach, acids, and other harsh cleaning solutions.

Looking for other valves? Browse our complete valve selection and high pressure check valves. Need soft wash components? Check out our soft wash systems and complete product catalog.