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Spears 437167 Schedule 80 PVC SPGxSOC Reducing Bushing
Model: SPR-437167
Spears 437167 Schedule 80 PVC SPGxSOC Reducing BushingThe Spears Schedule 80 PVC SPGxSOC Reducing Bushing transitions between two pipe sizes within a single Schedule 80 PVC pressure piping run, using...
Spears
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$1.09
Spears PVC Reducing Bushing, MPT x FPT, Schedule 80
The Spears PVC Reducing Bushing is a Schedule 80 fitting engineered to transition between two different pipe diameters within a threaded PVC piping run, such as the 1" x 3/4" size configuration. Built with a male pipe thread (MPT) on one end and a female pipe thread (FPT) on the other, this bushing allows installers to step down pipe size while maintaining a secure, leak-resistant threaded connection. Constructed from Schedule 80 PVC, it offers the strength and chemical resistance professionals expect for demanding pressure piping applications.
Key Features
- Reducing Design: Steps down from a larger trade size to a smaller trade size (e.g. 1" x 3/4") within the same threaded run.
- Durable Construction: Molded from Schedule 80 PVC for added wall thickness, pressure rating, and resistance to corrosion and chemical attack compared to lighter-duty fittings.
- MPT x FPT Connection: Male pipe thread on one end and female pipe thread on the other, enabling a direct threaded transition between differing pipe or fitting sizes.
- Schedule 80 Rated: Suited to higher-pressure PVC piping systems where standard Schedule 40 fittings may not be adequate.
- Versatile Sizing: Available in multiple reducing size combinations, including 1" x 3/4", to match common PVC piping transitions.
- Corrosion Resistant: PVC construction resists rust, rot, and chemical degradation common in metallic fittings.
Technical Specifications
- Department: Plumbing
- Product Group: PVC & CPVC Fittings
- Material: PVC, Schedule 80
- Connection: MPT x FPT
Typical Applications
- Threaded PVC Piping Transitions
- Pressure Piping and Process Systems
- Pump and Equipment Connections Requiring a Size Reduction
- Irrigation and Water Distribution Systems
- Chemical-Resistant Piping Runs
- Commercial and Industrial PVC Plumbing Installations
Why Spears?
Spears is a recognized manufacturer of PVC and CPVC piping products built for demanding fluid-handling applications. This Schedule 80 reducing bushing reflects that standard, combining a durable PVC construction with a precise MPT x FPT threaded transition for reliable, code-compliant performance in professional piping systems.
Manufacturer Resources
PVC Schedule 80 Fittings, Unions,Flanges & Tank Adapters"
Product Specs
- Product Type:
- Reducing Bushing
- Department:
- Plumbing
- Product Group:
- PVC & CPVC Fittings
- Connection Type:
- Threaded
- Product Subgroup:
- Fittings and Valves
Spears 839-131 – Frequently Asked Questions
1) Is the Spears 839-131 reducing bushing threaded on both ends, or does one end solvent weld?
Both ends are threaded. The Spears 839 Schedule 80 reducing bushing has male pipe thread (MPT) on the large end and female pipe thread (FPT) on the small end, so it threads into a female fitting or pipe coupling and accepts a male-threaded pipe or nipple on the other side. There is no socket end, so you cannot solvent cement it. If your run is solvent welded, you need a spigot x socket style bushing instead.
2) What size reduction does the Spears 839-131 bushing make?
The 839-131 steps a 1 inch line down to 3/4 inch, male thread on the 1 inch side and female thread on the 3/4 inch side. It is one of several reducing combinations in the Spears 839 series, so the trade sizes are read off the dash number.
3) What is the difference between Spears 839-131 and 839-131C?
Material. The 839-131 is PVC and the 839-131C is the CPVC version of the same Schedule 80 MPT x FPT reducing bushing in the same size. Pick CPVC when the line carries hot water or elevated process temperatures; PVC is the cold-water and ambient chemical-service choice. Dimensionally and thread-wise they are the same fitting.
4) Can I use this Schedule 80 bushing in a Schedule 40 PVC system?
Yes. Threaded PVC fittings use standard NPT taper threads, so a Schedule 80 bushing threads into Schedule 40 threaded fittings of the same trade size. The system pressure rating still falls to the weakest component, which is usually the Schedule 40 pipe or the threaded joint itself. The heavier Schedule 80 wall on the 839 series is what lets it be threaded in the first place.
5) Do I need thread sealant or Teflon tape on a Spears PVC threaded bushing?
Threaded plastic joints are sealed with PTFE tape or a plastic-compatible thread sealant, not solvent cement, and they are hand tight plus one to two turns with a strap wrench. Over-torquing a threaded PVC bushing is the usual cause of a split female hub, since the taper thread acts as a wedge. Nothing is supplied with the fitting.
6) Can I use this bushing to connect PVC pipe to a metal pump or valve?
Yes, that is a common use. The male thread end will screw into a female-threaded metal pump port or valve body, and the female end takes your smaller PVC pipe or nipple. Use PTFE tape on the plastic male thread and do not let a metal wrench over-torque it. Where a plastic male thread goes into metal, the metal female can wedge and crack the plastic, so torque by hand and snug it lightly.
7) Will a PVC reducing bushing hold up in a chemical process line?
PVC resists corrosion, rust, and chemical attack that would degrade a metallic fitting, which is why the Spears 839 Schedule 80 bushing is used on process and chemical-resistant piping as well as irrigation and water distribution. Chemical compatibility is specific to the fluid and temperature, so match the media to a PVC compatibility chart before committing the run.
How fast can I get the Spears 839-131 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 839-131 come with a warranty?
Absolutely. The Spears 839-131 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 839-131?
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installation tips, and troubleshooting. Contact Us
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