Split Penetration Fitting for Oblique Pipe Sealing
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Solution Overview
Problem
Conventional penetration fittings for sealing pipes in sump walls face challenges such as premature failure due to low chemical resistance, inability to accommodate oblique pipe angles, and high costs associated with retrofitting existing installations, which require excavation and pipe cutting.
Innovation Solution
A split-type penetration fitting with durable, fiberglass-reinforced plastic construction, featuring arcuate channels that taper to accommodate pipes at oblique angles, and an adapter plate or hub for secure sealing, allowing for retrofitting without excavation or pipe cutting, and using high-viscosity adhesive for a fluid-tight seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional flexible boots are used to seal pipes penetrating at oblique angles, then adaptability to oblique angles is improved, but chemical resistance and durability deteriorate
Solution Approach 1:
The fitting incorporates a tapered opening with a taper angle between 5-50 degrees, changing the geometric parameter to accommodate oblique pipe angles while maintaining material integrity. This allows the rigid fitting to adapt to oblique angles without compromising chemical resistance
Solution Approach 2:
The fitting is constructed from composite materials including fiberglass-reinforced plastic or other chemically resistant materials, combining structural strength with chemical resistance. This enables the fitting to be both rigid and durable in harsh chemical environments
2Reliability
If rigid penetration fittings are used for durability and chemical resistance, then reliability is improved, but ease of installation for retrofitting deteriorates
Solution Approach 1:
The fitting is divided into multiple segments including a body portion and a separate seal component. This segmentation allows the seal to be installed independently on the pipe without requiring excavation or pipe cutting, while the rigid body provides chemical resistance
Solution Approach 2:
A seal component acts as an intermediary element between the rigid fitting body and the pipe. This seal can be installed on the pipe first, then the rigid fitting body is attached to the seal, enabling retrofitting without excavation while maintaining chemical resistance
3Ease of repair
If split repair boots are used for replacement, then ease of repair is improved, but chemical resistance and durability deteriorate
Solution Approach 1:
The fitting is designed with separable components including a body and seal that can be installed independently. This segmentation enables easy repair by replacing only the seal component without removing the entire fitting, while the chemically resistant body maintains durability
Solution Approach 2:
The fitting uses a tapered opening with specific taper angles (5-50 degrees) that facilitates easy installation and replacement of the seal component, while the material composition maintains high chemical resistance for long-term durability
Data Source
AI summary
A penetration fitting includes a first fitting half having an inner surface and an outer surface opposite the inner surface, the first fitting half defining an arcuate channel, and a second fitting half having an inner surface and an outer surface opposite the inner surface, the second fitting half defining an arcuate channel, wherein the first and second fitting halves are adapted to abut one another with the inner surfaces of the first and second fitting halves together defining an inner end, the outer surfaces of the first and second fitting halves defining an outer end, and the arcuate channels of the first and second fitting halves cooperating to define a tapered opening configured to accept the at least one pipe segment, the opening having a larger diameter at the inner end and a smaller diameter at the outer end.