Spears Buna-N Flange Gasket fo...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$9.28
Spears Buna-N Flange Gasket for PVC Pipe

Spears Buna-N Flange Gasket for PVC Pipe

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Model: GK1-020

In Stock (leaves warehouse same day if ordered before 3pm ET)

$9.28
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Spears Buna-N Flange Gasket for PVC Pipe

The Spears Buna-N Flange Gasket is a 2" rubber sealing gasket engineered for use with PVC and CPVC flange connections in plumbing and piping systems. Molded from Buna-N (nitrile) rubber, this gasket provides a dependable, chemical-resistant seal at flange joints, helping installers achieve a leak-resistant connection between mating flange faces. It is packaged 25 per box, making it a practical choice for contractors and facilities that need to stock enough gaskets for multiple flange connections across a job site or maintenance program. As a flange accessory designed to complement Spears PVC and CPVC flange fittings, this gasket supports consistent, code-oriented assembly practices in residential, commercial, and industrial piping installations.

Key Features

  • Trade Size: 2" gasket sized to match 2" PVC and CPVC flange fittings for a precise, secure fit at the joint face.
  • Durable Construction: Molded from Buna-N (nitrile) rubber, offering strong resistance to oils, fuels, and many chemicals along with long-term flexibility in piping applications.
  • Reliable Sealing Performance: Creates a tight, uniform seal at flange joints to help prevent leaks under normal system operating pressure and temperature conditions.
  • Flange-Ready Design: Sized and shaped to pair with Spears PVC and CPVC flange fittings, supporting consistent, code-compliant flange connections.
  • Convenient Packaging: Sold in packs of 25, making it easy for plumbing professionals and facility teams to stock enough gaskets for larger installation, retrofit, or maintenance jobs.
  • Chemical and Piping Compatibility: Suited for use across PVC and CPVC piping systems commonly found in water, waste, and process piping networks.

Technical Specifications

  • Product Type: Flange Gasket
  • Material: Buna-N (Nitrile Rubber)
  • Trade Size: 2"
  • Packaging: 25 ea per pack

Typical Applications

  • PVC and CPVC Flange Connections
  • Commercial and Industrial Plumbing Systems
  • Water Treatment and Chemical Processing Lines
  • Irrigation and Municipal Water Systems
  • Renovation and New Construction Plumbing Projects
  • Facility Maintenance and Retrofit Piping Work

Why Spears?

Spears is a recognized manufacturer of PVC and CPVC piping components, and this Buna-N flange gasket reflects that standard with chemical-resistant rubber construction built for dependable, leak-resistant flange connections. For professionals seeking consistent performance in demanding piping systems, this gasket is a practical, code-oriented choice packaged 25 per box for efficient jobsite use, whether for new installations, system expansions, or ongoing maintenance of PVC and CPVC piping networks.

Product Specs

Product Type:
Gasket
Department:
Plumbing
Product Group:
PVC & CPVC Fittings
Product Material:
Buna-N
Product Subgroup:
Fittings and Valves

Spears GK1-020 – Frequently Asked Questions

1) What sizes does the Spears Buna-N flange gasket come in?
Two trade sizes are offered: 2 inch (GK1-020) and 3 inch (GK1-030). Order the gasket to match the nominal size of the flange it seats between, not the OD of the pipe.
2) Will a Buna-N gasket hold up in a chemical process line, or should I use EPDM?
Buna-N (nitrile) is the material here, and it resists oils, fuels, and many chemicals while staying flexible over time. That makes it a good match for hydrocarbon and oil-bearing service. Nitrile is not the choice for strong oxidizers or where a specific chemical chart calls for EPDM or Viton, so check the media against a nitrile compatibility chart before you commit on a process line.
3) Does this gasket work with CPVC flanges or only PVC?
It suits both. The gasket is made to pair with Spears PVC and CPVC flange fittings, and the sealing element is rubber, so the pipe material on either side doesn't change the gasket selection, only the size does.
4) Do I need bolts and washers too, or does the flange gasket kit include them?
The gasket is the sealing ring only. Bolts, nuts, and washers for the flange joint are separate, as is the mating flange itself. Plan on a full bolt set sized to the flange pattern for each joint you're making up.
5) Can I use this as a full-face gasket between a PVC flange and a metal flange?
It's a flat rubber flange gasket sized to Spears PVC and CPVC flanges, so it seats on any mating flange face of the same nominal size and drilling. What decides the joint is bolt torque: thermoplastic flanges take far less torque than steel, so back off to the plastic flange's rating and pull the bolts in a star pattern so the rubber compresses evenly.
6) Is a rubber gasket enough on its own, or do I need thread sealant or pipe dope on a PVC flange joint?
No sealant on the gasket face. The Buna-N ring does the sealing when the flange faces are drawn flat against it. Dope or tape on a flat-face joint can make the gasket slip and actually cause a leak. Any solvent weld or thread connection behind the flange gets its own cement or sealant, but the gasket face stays clean and dry.
7) How many gaskets come in a box?
25 per pack. For a maintenance crib or a multi-flange run that's enough to cover a job without reordering per joint, but it does mean a single-flange repair buys you 24 spares.
How fast can I get the Spears GK1-020 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 GK1-020 come with a warranty?
Absolutely. The Spears GK1-020 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 GK1-020?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Spears GK1-020 from ZenSupply?
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