3/4 in. x 4-1/2 in. PVC Schedule 80 Nipple
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The 3/4 in. x 4-1/2 in. PVC Schedule 80 Nipple is a Schedule 80 PVC nipple for extending or connecting threaded PVC piping in chemical dosing, water treatment, pool, irrigation, and industrial fluid systems where metal corrosion is a concern. Threaded on both ends for extending a PVC threaded connection. Schedule 80 gray PVC provides heavier wall thickness and higher pressure ratings than Schedule 40 white PVC — the standard for pressure-critical chemical systems.
Technical Specifications
| Specification | Value |
|---|---|
| Material | PVC (Polyvinyl Chloride) |
| Schedule | Schedule 80 (gray) |
| Thread | Male NPT × Male NPT |
| Pipe Size | 3/4 in. |
| Pressure Rating | ~150–600 PSI (size-dependent at 73°F) |
| Chemical Resistance | Chlorine, acids, caustics, most water treatment chemicals |
Key Features
- Schedule 80 PVC — heavier wall, higher pressure rating than Schedule 40
- Broad chemical resistance — compatible with chlorine, hypochlorite, acids, and caustics
- Male NPT × Male NPT threads; use PTFE tape only — no solvent-based pipe dope on PVC
- Non-metallic — no corrosion, rust, or metal leaching
- Gray color indicates Schedule 80 (white = Schedule 40)
Common Applications
Water treatment chemical dosing systems, RO and deionized water piping, pool and spa chemical lines, irrigation manifolds, municipal water treatment, and any PVC pressure piping system requiring a threaded extension without solvent-weld.