Bath Waste Overflow System With Segmented Test Plugs
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Solution Overview
Problem
Conventional bath waste and overflow systems are cumbersome, time-consuming to install, prone to leaks and rust, and require complex pressure testing procedures, especially in large-scale installations, necessitating an improved design for quicker installation and easier maintenance.
Innovation Solution
A bath waste and overflow system comprising an overflow elbow pipe, retaining nut, overflow faceplate, drain assembly with a drain elbow pipe, drain spud, and drain trim, along with pressure test plugs, allowing for quick and leak-proof attachment to bathtubs, facilitating efficient drainage and pressure testing without extensive assembly or disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional bath waste and overflow systems are used, then drainage function is provided, but installation time and labor are excessive
Solution Approach 1:
The bath waste and overflow system is divided into separate modular components: overflow assembly, drain assembly, and test plug assembly. Each component can be independently installed, tested, and replaced, significantly reducing installation time and labor requirements compared to conventional integrated systems.
Solution Approach 2:
Pressure test plugs are designed to be installed before the final overflow and drain assemblies. This preliminary action allows pressure testing to be completed during installation without requiring subsequent disassembly, saving time and ensuring leak-free installation.
2Reliability
If conventional pressure test plugs are used, then pressure testing can be performed, but assembly and disassembly are required which consumes additional time
Solution Approach 1:
Pressure test plugs are designed to be installed in advance of the final overflow and drain assemblies. This allows pressure testing to be performed during the installation process itself, eliminating the need for separate testing procedures and subsequent disassembly, thereby saving time while maintaining testing reliability.
3Reliability
If traditional drain plugs are fitted to bath waste and overflow devices, then sealing is achieved, but partial assembly or disassembly is required for testing
Solution Approach 1:
The system separates the pressure testing function from the final drainage assembly. Test plugs are designed as standalone components that can be installed independently for pressure testing, then removed and replaced with the final overflow and drain assemblies. This segmentation eliminates the need for partial assembly or disassembly during testing while maintaining reliable sealing.
4Ease of manufacture
If conventional bath waste systems are used, then drainage is provided, but leaks and rust buildup occur
Solution Approach 1:
The system utilizes threaded connections with retaining nuts and gaskets that create secure, leak-proof joints. The use of corrosion-resistant materials and proper sealing parameters prevents rust buildup and leaks while maintaining full drainage functionality.
Data Source
AI summary
A bath waste and overflow drain system of the present disclosure may comprise both drain and overflow assemblies. The drain assembly generally includes a drain elbow, drain gasket, drain spud, drain trim, and drain stopper. The drain trim may possess weep channels that urge stagnated water from a periphery of the drain spud and into the drain. The overflow assembly generally includes an overflow elbow, overflow gasket, retaining nut, and overflow faceplate. The overflow faceplate may have bayonet channels that engage with a protrusion of the overflow elbow so as to accommodate variances in tub design when effecting an installation. An embodiment of the system may also comprise test plugs of the overflow and drain varieties which are, together, operable to permit pressure-related tests of the system prior to completing an installation. The overflow and drain test plugs are simple to manipulate and install/remove with quick-engaging, complementary locking features.