Product Description
The NDS 4PVAF is a 4-inch SDR-35 PVC variable angle swivel fitting designed for underground drainage and sewer piping systems. The swivel mechanism allows the outlet angle to be adjusted during installation, eliminating the need for multiple fixed-angle fittings when connecting pipes at non-standard grades or transitions. Built to SDR-35 dimensional standards, this fitting is suited for gravity-flow drainage applications where precise alignment between pipes is difficult to achieve with rigid fittings. Plumbers and drainage contractors working on residential and commercial storm or sanitary sewer lines are the primary installers.
This fitting is applied in underground gravity-flow drainage systems, including storm sewer, sanitary sewer, and site drainage installations. The variable angle design is particularly useful at grade transitions, pipe-to-structure connections, and trench runs where the pipe slope or direction changes. It is commonly used by plumbing and site utility contractors on both new construction and repair or replacement projects requiring field-adjustable outlet positioning.
Key Features
- Variable angle swivel outlet allows on-site angle adjustment without additional fittings
- SDR-35 PVC construction rated for standard gravity sewer and drainage service
- 4-inch nominal pipe size fits standard 4-inch SDR-35 pipe
- PVC material resists corrosion, root intrusion, and typical underground soil chemistry
- Lightweight at 1.1 pounds, reducing handling effort in deep trench conditions
Compatibility
Designed as an OEM-style replacement or new-installation fitting for 4-inch SDR-35 PVC gravity sewer and drainage piping systems.
Installation Notes
Installation is typically performed by licensed plumbers or site utility contractors in accordance with the International Plumbing Code (IPC) or local authority having jurisdiction requirements. Confirm pipe grade and outlet angle before locking the swivel position, and ensure the fitting socket is clean and free of debris before solvent-cementing or gasketing. Trenches should be dewatered and shored per applicable safety codes before personnel enter. Do not use this fitting on pressurized supply lines.
Technical Specifications
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Pipe Size: 4 inches
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Standard: SDR-35
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Material: PVC
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Fitting Type: Variable Angle Swivel
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Weight: 1.1 pounds
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UPC: 052063058160
Standard Information
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Brand: NDS
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Manufacturer Part Number: 4PVAF
