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When a leaking tank connection costs you time, water, and peace of mind, the right bulkhead fitting makes all the difference. Whether you are a homeowner building a rainwater harvesting system, a pool installer routing return lines through a tank wall, or a DIY plumber connecting a storage vessel, a reliable PVC tank fitting is the foundation of a leak-free installation.
These PVC bulkhead tank fittings are available in female thread sizes from 1/2" (DN15) up to 2" (DN50) and in metric socket sizes from 20 mm up to 63 mm, covering the most common residential and light-commercial pipe standards. Each fitting is molded from rigid PVC (polyvinyl chloride) and includes a rubber gasket seal. Select variants also include a hand-tightening nut (Handschraubendübel) for tool-free installation. Typical wall thickness compatibility ranges from 3 mm to 25 mm depending on the fitting size.
Typical use cases include through-wall connections on IBC totes and poly water storage tanks for rainwater collection, return-line and drain fittings on above-ground swimming pools and garden ponds, and irrigation manifold connections on agricultural or greenhouse water tanks — all scenarios where a secure, solvent-weld or threaded PVC bulkhead fitting for water tanks is essential.
Available in female thread sizes 1/2", 3/4", 1", 1-1/4", 1-1/2", and 2", plus metric socket sizes 20 mm, 25 mm, 32 mm, 40 mm, 50 mm, and 63 mm — covering virtually every residential tank connection need.
Each fitting ships with a rubber gasket that compresses against the tank wall to create a reliable, drip-free seal without the need for thread tape on the bulkhead body itself.
Rigid PVC resists rust, scale, and common household chemicals, making these fittings suitable for potable water storage, pool water, and mild fertilizer solutions in irrigation applications.
Select size variants include a Handschraubendübel (hand-screw nut), allowing you to secure the fitting through the tank wall without any tools — ideal for thin-walled tanks and quick field installations.
Order from 1 to 20 pieces per size to match your project scope — whether you need a single replacement fitting or a full set for a multi-outlet tank manifold.
BSP female thread variants connect directly to standard PVC male-threaded pipe nipples and valves. Metric socket variants accept DIN-standard PVC pipe for solvent-weld connections.
| Material | Rigid PVC (Polyvinyl Chloride) |
|---|---|
| Thread Standard | BSP (British Standard Pipe) — female thread variants |
| Pipe Standard | DIN 8061 / 8062 — metric socket variants |
| Available Thread Sizes | 1/2", 3/4", 1", 1-1/4", 1-1/2", 2" (female) |
| Available Socket Sizes | 20 mm, 25 mm, 32 mm, 40 mm, 50 mm, 63 mm |
| Seal / Gasket | Rubber gasket included |
| Compatible Tank Wall Thickness | Typically 3–25 mm (see variant options) |
| Hand-Tightening Nut | Included on selected variants (see variant options) |
| Color / Finish | Grey (standard PVC) |
| Max Working Pressure | See variant options |
| Temperature Range | See variant options |
| Quantity per Order | 1, 2, 3, 5, 8, 10, 15, or 20 pieces |
Match the fitting size to your pipe diameter. If you are connecting a 3/4" male-threaded pipe nipple, select the 3/4" female thread variant. For metric PVC pipe, match the socket size to your pipe's outer diameter — for example, 25 mm socket for 25 mm OD pipe. When in doubt, measure the inner diameter of your existing pipe and cross-reference with standard BSP or DIN pipe tables.
These bulkhead fittings are designed for tank walls typically between 3 mm and 25 mm thick. The rubber gasket and locking nut clamp against both faces of the tank wall to create a seal. If your tank wall is unusually thick or thin, contact us to confirm compatibility before ordering.
These fittings are made from rigid PVC, which is widely used in potable water plumbing systems. However, regulatory approval requirements vary by region. If your application requires certified food-grade or drinking-water-approved fittings, please verify local compliance standards before use.
Yes. PVC is resistant to chlorinated water and common pool chemicals at typical residential concentrations, making these fittings well-suited for above-ground pool return lines, skimmer connections, and garden pond plumbing. Avoid prolonged exposure to highly concentrated chemical solutions beyond standard pool treatment levels.
No. The variants labeled with "Handschraubendübel" (hand-screw nut) are designed for tool-free installation. Insert the fitting through the drilled hole in your tank wall, place the rubber gasket, and hand-tighten the nut until snug. For standard variants without the hand nut, a wrench or strap wrench is recommended to achieve a proper seal.
The required hole diameter depends on the fitting size. As a general guide, drill a hole slightly larger than the fitting's body outer diameter so the fitting slides through cleanly, then the gasket and nut clamp it in place. Refer to the specific fitting dimensions for your chosen size, or contact us for a drilling guide.
Count the number of through-wall connections your tank requires — one fitting per outlet or inlet. We offer quantity options of 1, 2, 3, 5, 8, 10, 15, and 20 pieces per size, so you can order exactly what your project needs without overstocking. Bulk quantities also offer a lower per-unit cost.
