The McAlpine In-Line Non-Return Valve 40mm – T28M-NRV provides a highly effective waste water drainage solution for domestic plumbing installations. Specifically, it offers a secure and reliable method to prevent a back flow of water in your drainage system.
The T28M-NRV forms part of McAlpine’s trusted range of flexible and non-return valves. As a result, it delivers dependable operation across a wide variety of domestic plumbing applications and fits 1½” (40mm) waste systems specifically.
Key Features & Benefits of McAlpine In-Line Non-Return Valve 40mm – T28M-NRV:
Back Flow Prevention: The fitting is designed as a non-return valve to prevent a back flow of water in waste pipe installations. Consequently, it provides a convenient plumbing solution when you need to protect against reverse flow.
Top Access Design: Features top access for cleaning, which allows for easier maintenance since the valve must be cleaned regularly.
Simple Integration: Functions as a dedicated in-line non-return valve, allowing you to plumb wastewater systems efficiently in a horizontal position.
Versatile Connections: Incorporates a 1½” universal connection. Therefore, it contributes to a secure mechanical joint and fits various waste pipes seamlessly.
Trusted McAlpine Quality: McAlpine manufactures this component, ensuring dependable performance and high manufacturing standards.
Technical Specifications:
Product Type: In-Line Non-Return Valve
Model: T28M-NRV
Application: Waste water drainage preventing back flow of water (horizontal installation only)
Connection: 1½” Universal
Manufacturer: McAlpine







