DiversiTech NRV14 Non Return Valve 1/4″

Overview

The DiversiTech NRV14 is a precision-engineered non-return valve designed to maintain unidirectional flow in condensate management and fluid systems. Measuring 1/4 inch at both the inlet and outlet ports, this compact check valve is an essential component for preventing the reverse flow of fluids or gases, which can lead to system contamination, pump damage, or drainage failure.

This valve is specifically optimized for use with industry-standard Little Giant condensate pumps, including the VCMA-20S, VCC-20S, and VCL-24S models. It serves as the critical link between the pump outlet and the braided discharge hose, ensuring that once fluid is expelled, it cannot return to the reservoir.

Why It Matters

Backflow is a primary cause of premature motor wear and overflow issues in HVAC drainage systems. By installing the NRV14, you effectively isolate the pump from the weight of the water column in the discharge line, reducing the frequency of pump cycling and protecting the mechanical integrity of your condensate removal system.

What's Included

• ✓ 1 x DiversiTech NRV14 Non-Return Valve (1/4")

Features & Benefits

• Low Opening Pressure: Activates at just 0.08 – 0.1 bar, ensuring minimal resistance for the pump during operation.
• Universal 1/4" Connection: Perfectly sized for standard 1/4" piping and braided tubing used in HVAC applications.
• Reliable Directional Control: Specifically designed to allow flow in one direction only, preventing back-pressure damage.
• Pressure Rated: Supports a maximum working pressure of 1.0 bar, suitable for most residential and light commercial drainage setups.
• Robust Construction: Built to withstand constant moisture and chemical exposure found in condensate lines.

Applications

• Condensate pump outlet connections.
• Compatibility with Little Giant VCMA-20S, VCC-20S, and VCL-24S pumps.
• Braided hose integration for AC drainage.
• Low-pressure fluid management where backflow prevention is critical.

Tradie Pro Tip

Always look for the flow direction arrow marked on the valve body before securing your hose clamps. Installing an NRV backward is a common mistake that will completely block the pump discharge, causing the tank to overflow and potentially triggering the safety switch or damaging the pump motor.

Pair With

• Little Giant VCMA-20S Condensate Pump
• Braided PVC Condensate Tubing
• Stainless Steel Hose Clamps

Ensure your drainage system remains reliable and leak-free with the DiversiTech NRV14. Shop now at HVAC Shop for professional-grade components and fast shipping across Australia.