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Spears GFPVC Van Stone Flange, SOC, Class 150
The Spears GFPVC Van Stone Flange is a socket-connection (SOC) flange built from glass-filled PVC (GFPVC) for added strength in demanding piping systems. Rated Class 150 with a 150 PSI pressure rating, this flange is engineered to join PVC piping sections securely while resisting the corrosion that plagues metal alternatives. It's a dependable choice wherever code-compliant, chemical-resistant flange connections are required in PVC piping runs.
Key Features
- Durable Construction: Glass-Filled PVC (GFPVC) material adds reinforced strength and corrosion resistance compared to standard PVC.
- Socket Connection: SOC (socket) end configuration for a solvent-welded joint to PVC pipe.
- Pressure Rating: Rated 150 PSI for reliable performance in pressurized piping systems.
- Class Rating: Class 150 (CL150) flange rating for standardized bolt-pattern compatibility with mating flanges.
- Van Stone Design: Van Stone-style flange configuration allows the flange ring to rotate independently of the pipe stub for easier bolt-hole alignment during installation.
- Corrosion Resistant: PVC-based construction resists the rust and chemical attack common to metal flanges in industrial and wet environments.
Technical Specifications
- Department: Plumbing
- Product Group: PVC & CPVC Fittings
Typical Applications
- Commercial and Industrial PVC Piping Systems
- Chemical Processing and Corrosion-Prone Environments
- Flange Connections to Metal Valves, Pumps, or Equipment
- Water and Wastewater Treatment Piping
- Renovation and New Construction PVC Pipe Runs
Why Spears?
Spears is a recognized manufacturer of thermoplastic piping products, and this GFPVC Van Stone Flange reflects that focus with glass-reinforced PVC construction rated to Class 150 and 150 PSI. For contractors and engineers who need a corrosion-resistant, code-compliant flange connection for PVC piping systems, the Spears SOC Van Stone Flange delivers dependable, long-lasting performance without the maintenance concerns of metal flanges.
Manufacturer Resources
PVC Schedule 80 Fittings, Unions,Flanges & Tank Adapters"
Product Specs
- Product Type:
- Van Stone Flange
- Department:
- Plumbing
- Product Group:
- PVC & CPVC Fittings
- Product Material:
- Glass-Filled PVC
- Connection Type:
- Socket
- Configuration:
- Class 150
- Product Subgroup:
- Fittings and Valves
Spears 854-040 – Frequently Asked Questions
1) What pipe sizes does the Spears 854 Van Stone flange come in?
Two sizes: 4 inch (part 854-040) and 6 inch (part 854-060). Both are socket end, so they solvent weld over the outside of PVC pipe of that nominal size.
2) Will a Spears Van Stone flange bolt up to a cast iron or steel Class 150 flange on a pump?
Yes. The Spears 854 is a Class 150 flange, so it carries the standard Class 150 bolt circle and hole count for its size and mates to other Class 150 flanges, including metal valve, pump, and equipment flanges. Its pressure rating is 150 PSI. Use a full-face gasket and flat washers under the bolt heads, and tighten in a cross pattern to avoid cracking the plastic flange face.
3) What is the advantage of a Van Stone flange over a one-piece PVC flange?
On a Van Stone design the flange ring floats and rotates independently of the solvent-welded pipe stub. That means you glue the stub on first and then spin the ring to line the bolt holes up with the mating flange, instead of having to clock the whole fitting perfectly while the cement is still wet. On tie-ins to existing equipment where the bolt holes are already fixed, that rotation is the difference between a clean fit and cutting the pipe again.
4) How do I connect the Spears 854 flange to PVC pipe, and do I need any extra parts?
It is a socket (SOC) end, so it is solvent welded: prime and cement the pipe into the socket, no threading and no gaskets on the pipe side. The flange itself does not include the bolts, nuts, washers, or the gasket for the flanged joint, so order those separately along with your PVC primer and cement.
5) Is this flange regular PVC or something stronger?
The ring is glass-filled PVC (GFPVC), a glass-reinforced compound that adds stiffness and strength over unfilled PVC while keeping the same corrosion and chemical resistance. That matters on a bolted joint, where the flange face takes the clamping load.
6) Can I use a Spears GFPVC Van Stone flange in a chemical or wastewater line?
That is one of its intended uses. The PVC-based construction resists the rust and chemical attack that takes out metal flanges, and it is called out for chemical processing, water and wastewater treatment piping, and general industrial PVC runs. Check your specific chemical and temperature against a PVC chemical resistance chart, since PVC pressure ratings de-rate as temperature climbs.
7) Is 150 PSI the rating at any temperature?
The 150 PSI rating on the Spears 854 flange is the standard Class 150 rating, and like all thermoplastic piping it applies at ambient temperature. As service temperature rises, PVC working pressure drops, so hot lines need the manufacturer's de-rating factor applied. For anything above room temperature, size the system to the de-rated figure rather than the 150 PSI headline.
How fast can I get the Spears 854-040 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 854-040 come with a warranty?
Absolutely. The Spears 854-040 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 854-040?
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