The B&K 101-108 Inline Check Valve is a high-performance, spring-loaded valve engineered to prevent backflow in residential, commercial, and industrial plumbing systems. Designed for use with 2-inch IPS (Iron Pipe Size) piping, this valve features a Schedule 40 PVC body that offers excellent corrosion resistance, lightweight handling, and long-term durability.

At the heart of the valve is a stainless steel spring-loaded poppet mechanism paired with a neoprene O-ring seal, ensuring reliable one-directional flow and tight shutoff. An arrow molded into the valve body provides clear guidance for proper installation orientation. Rated for 200 PSI at 72°F, this valve is ideal for liquid applications and is not suitable for use with compressed air.

Key Features

• Model: 101-108
• Size: 2 inch IPS
• Connection Type: Threaded FIP x FIP (Female Iron Pipe)
• Material:
  • Body: Schedule 40 PVC (White)
  • Trim: Stainless Steel spring
  • Seal: Neoprene O-ring
• Design:
  • Inline check valve with spring-loaded poppet
  • Molded directional flow arrow for easy installation
  • Lightweight construction for simplified handling
• Pressure Rating: Up to 200 PSI at 72°F
• Temperature Rating: 72°F nominal operating temperature
• Weight: Approx. 1.5–1.7 lbs
• Certifications:
  • NSF/ANSI 61 & 372 – Lead-free and safe for potable water
  • UL Listed
  • FM Approved
• Thread Standard: ANSI B1.20.1
• Warranty: 1-Year Manufacturer Warranty

Applications

• Potable Water Systems – Certified lead-free for safe drinking water use
• Irrigation Systems – Prevents backflow in sprinkler and drip systems
• Drainage Systems – Maintains directional flow in gravity-fed lines
• Industrial Fluid Handling – Suitable for low-pressure liquid transport
• HVAC Systems – Used in condensate and cooling water lines
• Maintenance Access Points – Allows easy inspection and replacement
• DIY & Plumbing Projects – Ideal for residential upgrades and repairs