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Graphic illustration of a white Schedule 40 PVC union (FIPT x FIPT) showing the nut, threaded female ports, and Buna-N O-ring seal.

Schedule 40 PVC Union FIPT x FIPT with Buna-N O-Ring

Brand: PVC
Save 25%
$8.50
$6.38
SKU 458-005

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Durable Schedule 40 PVC union with female threaded ends (FIPT) and a Buna-N (NBR) O-ring seal. Designed for irrigation, potable water, and general Schedule 40 PVC systems, this union lets you join piping where occasional disassembly is required.

  • Reliable seal: Buna-N O-ring forms a leak-resistant gasket between union halves for quick, tool-free disassembly.
  • Threaded connection: FIPT x FIPT female threads create a secure joint; use with threaded adapters or matching fittings.
  • Certified for water: NSF 61 listed for potable water applications and manufactured to ASTM D2466/D1784 standards.
  • Performance: Rated to 150 PSI at 73°F and service temperatures up to 140°F for typical irrigation and plumbing use.
  • Easy maintenance: Union design allows sections to be removed without cutting pipe, simplifying repairs and system changes.

Available in nominal sizes from 1/2" through 4" to match common Schedule 40 piping. Not recommended for compressed air or service with ketones, chlorinated hydrocarbons, or aromatic solvents. For solvent-cemented pipe, use compatible adapters or choose a socket-style union. Refer to the manufacturer's technical literature for dimensional charts and installation guidance.

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Frequently Asked Questions

What is the maximum pressure and temperature rating?
Rated to 150 PSI at 73°F; service temperatures up to 140°F.
Is this union safe for potable (drinking) water and irrigation use?
Yes. It is NSF 61 listed for potable water and suitable for irrigation service.
How does the union achieve a leak-resistant seal?
A molded Buna-N (NBR) O-ring sits between union halves; the threaded nut compresses the O-ring to form a reliable seal.
Can I use this union with solvent-cemented PVC pipe?
This model has FIPT threaded ends; use compatible adapters or select a socket-style union for direct solvent-cement connections.