The McAlpine Self Closing Non-Return Valve 2″ – MACVALVE-4 provides a highly effective waterless sealing solution for domestic plumbing installations. Specifically, it offers a secure and reliable method to prevent foul odours and backflow when you need to protect a drainage system.
Therefore, the McAlpine MACVALVE-4 suits system modifications and replacement projects that feature limited space where a normal water seal might evaporate. Additionally, it acts as a self-closing non-return valve specifically designed for waste pipes and features universal compression connections, which simplifies installation and ensures a secure joint.
The MACVALVE-4 forms part of McAlpine’s trusted range of self-closing waste valves. As a result, it delivers dependable operation across a wide variety of domestic plumbing applications and fits 2″ waste systems specifically.
Key Features & Benefits of McAlpine Self Closing Non-Return Valve 2″ – MACVALVE-4:
Odour & Backflow Prevention: The fitting offers complete closure using an internal membrane that seals automatically when flow stops. Consequently, it provides a convenient and cost-effective plumbing solution when you need to safely block foul sewer gases and prevent waste backflow.
Dry-Out Resistance: Functions as a dedicated waterless trap, allowing you to seal off wastewater systems efficiently without needing a traditional water seal that can evaporate.
Versatile Connections: Incorporates 2″ universal compression connections. Therefore, it contributes to a secure, watertight seal and fits standard plastic waste pipes seamlessly in both horizontal and vertical positions.
Problem-Solving Design: Overcomes issues with awkward plumbing spots and odour ingress, helping you reduce installation time and eliminate leak concerns during system updates.
Trusted McAlpine Quality: McAlpine manufactures this component, ensuring dependable performance and high manufacturing standards.
Technical Specifications:
Product Type: Self-Closing Waste Valve
Model: MACVALVE-4
Manufacturer: McAlpine







