H43 Automotive Check Valve Series

Application: Transportation

The Ranco H43 Series Check Valve Series is designed for automotive coolant systems. It limits or stops fluid flow in vehicles, tractors, and off-road equipment and reduces system noise by dampening pulsations in glycol-based coolants. The H43 valve is available in two versions:

H43-1000: Limits flow in flow restriction applications, protecting components from high pressure and flow erosion (e.g., heater cores).

H43-5000: Stops flow in check valve applications, preventing backflow in parallel loop systems (e.g., front/rear units, multiple heat exchangers in EVs).

Features and Benefits:

• Versions available for flow restriction and check valve applications
• Minimal pressure drop in full flow applications
• Port sizes available: 5/8″ and 3/4”
• Under the hood compatible up to 185°F (85°C)

Specifications:

• Ambient Temperature: -40°F to 185°F (-40°C to 85°C)
• Temperature Control Range: -40°F to 248°F (-40°C to 120°C)
• Storage Temperature: -40°F to 185°F (-40°C to 85°C)
• Comments: Durability: 100,000 cycles
• Construction: Nylon 6/6 glass reinforced