90mm Metric 90° Elbow Fitting
SKU: PVC-EL90-90
- Professional Grade: Engineered for massive water volume management in commercial reef and aquaculture systems.
- Metric Precision: Specifically sized for 90mm metric PVC pipe (approx. 3.5" OD), found on large Reef Octopus discharge assemblies.
- Space-Saving: Provides a sharp 90-degree turn to facilitate clean routing in dense filtration rooms and large sump layouts.
- Saltwater Tough: High-impact, industrial-grade grey PVC construction built for permanent marine use.
- Superior Seal: Deep-socket slip connections provide a massive surface area for a secure, leak-proof solvent weld.
- Ideal For: Commercial skimmer discharge; high-flow return manifolds; 90mm metric drain lines.
90mm Metric 90° Elbow Fitting
The 90mm Metric 90° Elbow is a robust plumbing component designed for the most demanding water management tasks in large-scale reef aquariums, public exhibits, and industrial aquaculture installations. This fitting is precision-sized for 90mm Metric PVC pipe, the primary diameter used for the main discharge assemblies and recirculating loops on massive Reef Octopus Commercial protein skimmers.
In large-scale life support engineering, 90mm plumbing is used to handle extreme flow rates where standard plumbing would fail or cause significant backpressure. This 90-degree fitting allows for clean, sharp turns in tight filtration rooms while maintaining the structural integrity required for high-pressure or high-volume gravity drain applications. Constructed from industrial-grade, saltwater-safe grey PVC, this elbow features a smooth internal bore to minimize detritus buildup and ensures a permanent, high-strength bond when solvent-welded.
Key Features
True Metric Calibration: Fits 90mm OD metric pipe—essential for maintaining factory Reef Octopus commercial-spec plumbing.
Industrial Durability: Heavy-walled PVC construction designed to handle the vibrations and pressures of high-capacity pump rooms.
Flow-Optimized Bore: Precision-molded internal walls help maintain water velocity and reduce noise in high-volume plumbing runs.
Corrosion Proof: 100% saltwater safe and chemically inert; will not degrade or leach chemicals in marine environments.
Deep Socket Design: Slip x Slip configuration provides a massive surface area for a fail-safe solvent weld.
Ideal For
Commercial Skimmer Modification: Customizing the primary output of 90mm-diameter Reef Octopus skimmers.
Large-Scale Drain Lines: Routing high-volume gravity drains for massive exhibits and public aquarium displays.
Centralized Filtration: Creating professional, high-diameter plumbing manifolds for industrial aquaculture.
Images shown are representative of the product family. Materials, sizes, and configurations may vary.
What’s Included:
(1) 90mm Metric 90° Elbow Fitting
Specifications:
Size: 90mm
Angle: 90 Degrees
Connection Type: Slip x Slip (Socket)
Material: Heavy-duty Grey PVC
Compatibility: 90mm Metric Pipe ONLY
- Ensure the 90mm metric pipe is cut perfectly square and deburred using a specialized tool or sandpaper.
- Perform a dry-fit of the 90° elbow to verify the alignment of your large-diameter plumbing run.
- Apply a generous coat of PVC primer to the pipe end and the internal socket of the fitting.
- Apply a liberal layer of heavy-duty PVC solvent cement (suitable for large-diameter pipe) to both the pipe and the elbow.
- Insert the pipe into the fitting and give it a slight quarter-turn to ensure the adhesive is fully distributed.
- Hold firmly for 60 seconds. Allow a minimum cure time of 4–6 hours before pressure testing.
Pro Tips
Metric vs. Standard.
A 90mm metric fitting will not fit standard 3-inch or 4-inch USA Schedule 40/80 pipe. 90mm is a specific metric outer diameter (approximately 3.54 inches). Always measure your pipe with a caliper before beginning a commercial installation to avoid compatibility errors.
Support the Weight. Large-diameter plumbing like 90mm is extremely heavy when filled with water. Ensure that your plumbing run is supported by pipe hangers or brackets every few feet to prevent stress on the 90-degree solvent joints.
Professional Aesthetics. In high-visibility commercial installs, use clear PVC primer rather than purple. This keeps the grey 90mm fittings looking clean and "industrial," matching the professional aesthetic of high-end Reef Octopus life support systems.