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Spears 435 Series PVC Schedule 40 Female Adapter, Socket x FPT
Model: SPR-435005
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Spears PVC Tank Adapter, FPT x FPT, Neoprene
The Spears PVC Tank Adapter is a female pipe thread by female pipe thread (FPT x FPT) fitting engineered to connect PVC piping systems directly to tanks, vessels, and equipment bulkhead fittings. Constructed from durable PVC and fitted with a neoprene gasket, this adapter provides a secure, leak-resistant seal at the tank penetration point. Its PVC body resists corrosion from a wide range of chemicals and water-based fluids, making it a dependable choice for plumbing, irrigation, and industrial tank connections.
Key Features
- Durable Construction: Molded PVC body resists corrosion and chemical attack for long-term reliability in tank and vessel connections.
- FPT x FPT Connection: Female pipe thread on both ends allows straightforward threaded connection between tank bulkhead fittings and PVC piping.
- Neoprene Gasket: Integrated neoprene seal helps ensure a watertight, leak-resistant connection at the tank penetration.
- Tank Adapter Design: Purpose-built to adapt tank openings to standard PVC pipe threads, simplifying installation on tanks and containment vessels.
- Corrosion Resistant: PVC construction stands up to moisture and many common chemicals encountered in tank and fluid-handling applications.
Technical Specifications
- Department: Plumbing
- Product Group: PVC & CPVC Fittings
Typical Applications
- Tank and Vessel Bulkhead Connections
- PVC Piping and Plumbing Systems
- Irrigation and Fluid Handling Systems
- Water Storage and Containment Tanks
- Renovation and New Construction Plumbing
Why Spears?
Spears PVC fittings are built from durable PVC materials and designed for dependable, leak-resistant performance in demanding plumbing and tank applications. With a neoprene-sealed FPT x FPT design, this tank adapter delivers a secure, corrosion-resistant connection professionals can rely on for both new installations and system repairs.
Manufacturer Resources
PVC Schedule 40 Fittings
Product Specs
- Product Type:
- Tank Adapter
- Department:
- Plumbing
- Product Group:
- PVC & CPVC Fittings
- Product Material:
- PVC
- Connection Type:
- Threaded
- Product Subgroup:
- Fittings and Valves
Spears 8172-015 – Frequently Asked Questions
1) What sizes does the Spears 8172 PVC tank adapter come in?
The Spears 8172 series tank adapter is offered in two sizes: 1-1/2 inch (part 8172-015) and 2 inch (part 8172-020). Both are FPT x FPT, so the nominal size refers to the female pipe thread on each end.
2) Do I need to glue this tank adapter, or does it thread on?
No solvent cement required on the adapter itself. Both ends of the Spears 8172 are female pipe thread, so it threads onto male-threaded pipe or a male bulkhead nipple. If your run is plain-end PVC pipe, you will need a male adapter (MPT x socket) on each side to transition from the pipe to the threads.
3) Does the Spears tank adapter include a gasket, or do I buy that separately?
The neoprene gasket is part of the assembly. It seals at the tank penetration point where the adapter passes through the tank wall, so you are not sourcing a separate seal. You will still want thread sealant or PTFE tape on the pipe threads themselves, since the gasket seals the wall, not the threads.
4) Will a PVC tank adapter hold up to chemicals in a storage tank?
The body is molded PVC, which resists corrosion and chemical attack from a wide range of chemicals and water-based fluids. The limiting piece in most installs is the neoprene gasket rather than the PVC, since elastomer compatibility varies by chemical. For potable water, irrigation, and general fluid handling, both materials are the usual choice.
5) What is the difference between a tank adapter and a bulkhead fitting?
They do the same job from different sides. A bulkhead fitting seals a pipe connection through a tank wall with a nut and gasket on the inside. The Spears 8172 tank adapter is built to adapt a tank opening to standard PVC pipe threads, giving you FPT on both ends so piping threads straight in. If your tank already has a threaded boss or an existing bulkhead with male threads, the tank adapter is the simpler connection; if you are cutting a fresh hole in a flat tank wall, a bulkhead fitting is the part to look at.
6) What else do I need to order to finish a tank connection with this adapter?
Plan on two male threaded transitions if your piping is plain-end PVC: a MPT x socket male adapter on the pipe side and whatever male nipple or threaded boss the tank presents on the other. Add PTFE tape or a PVC-safe thread sealant, and solvent cement plus primer for the socket joints on the male adapters. The neoprene gasket for the tank wall comes with the 8172.
7) Can I use this Spears adapter on an irrigation main or a water storage tank outlet?
Yes. Irrigation and fluid handling, water storage and containment tanks, and general PVC plumbing are all listed applications for the 8172. It is sized 1-1/2 inch and 2 inch, which covers most tank outlets and mainline taps on those systems.
8) Is this a Schedule 40 PVC fitting?
The 8172 tank adapter is covered by Spears' PVC Schedule 40 fittings literature and is a PVC fitting in that family. Threads are standard NPT female on both ends, so it mates with Schedule 40 or Schedule 80 male threaded PVC of the same nominal size.
How fast can I get the Spears 8172-015 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Spears 8172-015 come with a warranty?
Absolutely. The Spears 8172-015 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Spears 8172-015?
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