90mm Metric Double Union Ball Valve
SKU: PVC-BV-90
- Full Port Design: Provides maximum flow with zero restriction, essential for massive 90mm return and drain lines.
- Double Union Versatility: Allows for easy removal of the valve body for cleaning or maintenance without cutting the pipe.
- Commercial Capacity: Sized for 90mm metric PVC pipe (approx. 3.5" OD), the primary standard for industrial life support.
- Precision Control: Ergonomic handle allows for smooth, incremental adjustment of water volume in high-diameter manifolds.
- Industrial Durability: Constructed from thick-walled grey PVC with chemical-resistant EPDM seals and PTFE seats.
- Ideal For: Commercial skimmer discharge; main exhibit return lines; industrial aquaculture isolation points.
90mm Metric Double Union Ball Valve
The 90mm Metric Double Union Ball Valve is a heavy-duty flow control solution engineered for the largest aquarium exhibits and industrial aquaculture facilities. Precision-sized for 90mm Metric PVC pipe, this valve is a primary isolation and regulation point for the massive discharge assemblies and recirculating loops found on Reef Octopus Commercial protein skimmers.
In large-scale life support engineering, maintenance accessibility is critical. The double union design allows the central valve body to be unscrewed and removed from the plumbing run without disturbing the surrounding pipework. This makes it easy to service the internal seals or clear obstructions. Constructed from industrial-grade grey PVC, this valve features a smooth-turning ball with PTFE seats and EPDM gaskets, ensuring a leak-proof seal and effortless operation even under the significant weight and pressure of 90mm plumbing.
Key Features
True Metric Calibration: Fits 90mm OD metric pipe—standard for commercial-spec Reef Octopus and large European exhibits.
Removable Body: Integrated unions on both ends facilitate rapid maintenance and system reconfiguration.
Industrial Strength: Rated for high-pressure applications (PN16) and built to withstand the rigors of commercial pump rooms.
Corrosion Proof: 100% saltwater safe materials; will not rust or leach chemicals into sensitive marine environments.
Adjustable Seat: Features an adjustable union nut to maintain the perfect seal tension over years of service.
Ideal For
Commercial Skimmer Control: Precision tuning of the water level in 90mm-diameter skimmer bodies.
Exhibit Isolation: Allowing for the shut-off of primary return or drain lines during system maintenance.
High-Volume Manifolds: Directing water flow between different filtration modules in industrial aquaculture racks.
Images shown are representative of the product family. Materials, sizes, and configurations may vary.
What’s Included:
(1) 90mm Metric Double Union Ball Valve
Specifications:
Size: 90mm
Valve Type: Ball Valve (Double Union)
Connection Type: Slip x Slip (Socket)
Body Material: Industrial Grade Grey PVC
Seal Material: EPDM / PTFE
Compatibility: 90mm Metric Pipe ONLY
- Ensure the 90mm metric pipe ends are cut square and deburred.
- Unscrew the union nuts from the valve and slide them onto the pipe ends.
- Solvent-weld the union sockets to the pipe ends using heavy-duty PVC cement.
- Once the adhesive has fully cured, place the valve body between the sockets, ensuring the EPDM O-rings are seated correctly.
- Hand-tighten the union nuts. Do not use a pipe wrench, as overtightening can crack the PVC nuts.
- Open and close the valve several times to ensure smooth operation before introducing water pressure.
Pro Tips:
- Metric vs. Standard 3-Inch. A 90mm metric valve will not fit standard 3-inch USA pipe. 90mm is a specific metric outer diameter (approximately 3.54 inches). US 3-inch pipe is 3.5 inches OD, while US 4-inch pipe is 4.5 inches OD. Always verify your pipe diameter with a caliper before installation.
- Lube the Seals. Before final assembly, apply a thin layer of 100% silicone lubricant to the EPDM O-rings. This ensures a better seal and makes it much easier to unscrew the unions after they have been in service for a long period.
- Support the Weight. A 90mm valve is heavy, especially when full of water. Ensure the pipe on either side of the valve is securely supported by brackets to prevent the weight from putting leverage stress on the union connections.