Spears 853 CL150 PVC Blind Fla...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$91.80
Spears 853 CL150 PVC Blind Flange, 150 PSI Rated

Spears 853 CL150 PVC Blind Flange, 150 PSI Rated

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Model: 853-020

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

$91.80
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Spears 853 CL150 PVC Blind Flange, 150 PSI Rated

The Spears 853 CL150 PVC Blind Flange is a PVC pressure-piping fitting engineered to blank off or seal the end of a pipeline, valve port, or flanged connection point. Available in sizes from 2" through 8", this family of blind flanges is molded from durable PVC and rated to a CL150 pressure class with a 150 PSI rating, giving piping systems a reliable, corrosion-resistant termination point that stands up to demanding fluid-handling environments. Its solid, unported design makes it a straightforward solution wherever a flanged connection needs to be closed off completely, whether for system isolation, future expansion, or routine maintenance access. Every size in this Spears PVC flanged piping line is built to integrate with standard Class 150 bolt patterns.

Key Features

  • Size Range: Available in 2", 3", and 8" trade sizes to fit a variety of flanged connection points.
  • Durable Construction: Manufactured from PVC for excellent corrosion and chemical resistance in demanding piping applications.
  • Pressure Class: Rated CL150 across the size range, matching standard Class 150 flange dimensions and bolt patterns for straightforward installation.
  • Pressure Rating: Rated to 150 PSI, delivering dependable sealing performance under system pressure.
  • Blind Flange Design: Solid, unported face fully blanks off pipe ends, valve ports, or flanged connections where flow needs to be stopped.
  • Piping System Compatibility: Designed to integrate with PVC flanged piping systems for tanks, pumps, valves, and pipeline terminations.
  • Lightweight, Corrosion-Free Material: PVC construction resists rust and chemical degradation compared to metallic flange alternatives.

Technical Specifications

  • Product Material: PVC
  • Pressure Class: CL150
  • Pressure Rating: 150 PSI
  • Trade Size Range: 2" - 8"

Typical Applications

  • Municipal and Industrial PVC Piping Systems
  • Water and Wastewater Treatment Facilities
  • Chemical Processing and Distribution Lines
  • Irrigation and Agricultural Piping Networks
  • Pipeline Termination and Maintenance Access Points
  • Tank, Pump, and Valve Flange Connections

Why Spears?

Spears PVC fittings are built for dependable, code-compliant performance in pressure-piping systems where corrosion resistance and consistent flange compatibility matter. Across its full 2" to 8" size range, this CL150 blind flange combines PVC's inherent resistance to rust and chemical attack with a standard Class 150 bolt pattern, making it easy to integrate into existing PVC piping infrastructure. For contractors and facility operators who need a reliable way to blank off flanged connections at a 150 PSI rating, this Spears blind flange offers straightforward installation and long-term durability across a wide range of municipal, industrial, and chemical-handling piping systems.

Manufacturer Resources

Product Specs

Product Material:
PVC
Product Type:
Blind Flange
Department:
Plumbing
Product Group:
PVC & CPVC Fittings
Product Size:
2" - 8"
Series:
CL150

Spears 853-020 – Frequently Asked Questions

1) What sizes does the Spears 853 PVC blind flange come in?
The Spears CL150 PVC blind flange is offered in 2 inch (part 853-020), 3 inch (853-030), and 8 inch (853-080). Order by the nominal pipe size of the flange you are blanking off, since the blind has to match the mating flange's bolt circle.
2) Will a Spears CL150 blind flange bolt up to my existing Class 150 PVC flange?
Yes. It is made to Class 150 flange dimensions and bolt patterns, so it lines up with standard CL150 flanged PVC piping, valve flanges, and pump or tank connections of the same nominal size. Match the size first, then the bolt circle follows.
3) What pressure can a Spears PVC blind flange hold?
It carries a CL150 pressure class with a 150 PSI rating. That is the flange rating on the blank itself, so the system pressure at that termination point should stay within it.
4) Do I need a gasket and bolts with a PVC blind flange, or does it come as a set?
The 853 blind flange is the solid blank only. A flanged joint still needs a full-face gasket between the blind and the mating flange plus a bolt set sized to the Class 150 pattern for that pipe size, so order those separately.
5) Should I use a blind flange or a cap to close off a PVC line?
A solvent-weld cap is permanent. The Spears 853 blind flange bolts on, so you can unbolt it for maintenance access, pressure testing, or to extend the line later. Use the blind where you want the end reopenable or where you are blanking a valve port or tank nozzle that is already flanged.
6) Is PVC acceptable for blanking off a chemical or wastewater line instead of a steel blind?
PVC is the reason to pick this one. It will not rust and it resists chemical attack, which is why the 853 gets used in water and wastewater treatment, chemical processing lines, and irrigation networks where a metal blind would corrode at the joint. The tradeoff is the 150 PSI ceiling and the fact that PVC is temperature limited compared to metal.
7) Can I use the 8 inch Spears blind flange to blank a pump or tank nozzle during a shutdown?
That is a normal use. The 8 inch 853-080 bolts to any Class 150 8 inch flanged connection, including tank, pump, and valve flanges, and blanks it completely since the face is unported. Bolt it up with a full-face gasket and it holds to the 150 PSI class rating.
How fast can I get the Spears 853-020 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 853-020 come with a warranty?
Absolutely. The Spears 853-020 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 853-020?
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 853-020 from ZenSupply?
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