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Bronze angle body piston valve with NPT threads

Red Hat

Red Hat 8290A386 Angle Body Piston Valve 1 in Cv 15 90 psi 366 °F

SKU CH-CJW4-NC0R9 MPN 8290A386

Bronze angle-body piston valve with 1 in NPT threads, Cv 15, rated 90 psi and 366 °F for steam or water service

  • TypeDrain Components
  • Handles high flow with Cv 15 rating
  • Withstands steam pressure up to 90 psi
  • Operates reliably at 366 °F maximum temperature
  • Bronze body resists corrosion in indoor or outdoor use
  • PTFE seals provide durable chemical compatibility

Valve Type and Application

The Red Hat 8290A386 is an angle-body piston valve built for drain and trap installations. It handles steam or water in industrial and commercial piping systems where reliable on-off control is required. The normally-closed design suits automated safety circuits and timed discharge lines. Bronze construction resists corrosion in indoor and outdoor environments.

Pressure and Temperature Limits

Operating differential pressure reaches 90 psi for both steam and water service with no minimum pressure requirement. The PTFE seal tolerates fluid temperatures up to 366 °F, covering saturated-steam conditions at the rated pressure. A Cv of 15 provides predictable flow capacity for sizing calculations. The valve opens and closes cleanly across the full pressure range.

Materials and Connections

The bronze body and PTFE seal combine chemical resistance with long service life in condensate and steam lines. One-inch NPT threads allow direct connection to standard pipe fittings without adapters. The two-way, two-position layout simplifies piping schematics and maintenance access. Installers needing flanged or welded connections must use transition fittings not supplied with the valve.

Highlights

  • Handles high flow with Cv 15 rating
  • Withstands steam pressure up to 90 psi
  • Operates reliably at 366 °F maximum temperature
  • Bronze body resists corrosion in indoor or outdoor use
  • PTFE seals provide durable chemical compatibility

Specifications

TypeDrain Components
BrandRed Hat
Model8290A386

Questions about this item

How do I install the Red Hat 8290A386 valve and what threading mistake should I avoid?

Thread the 1 in NPT connections into matching pipe fittings using appropriate sealant; the common error is cross-threading the bronze body or over-tightening, which can crack the casting.

Which parts of the 8290A386 will need replacement after extended service?

The PTFE seals and piston assembly are the primary wear items; plan to inspect and replace them when leakage appears or actuation becomes sluggish.

What is the first operating limit the 8290A386 reaches under continuous high-temperature steam?

The 366 °F maximum fluid temperature is the limiting factor; sustained steam above this temperature will degrade the PTFE seals before the 90 psi pressure rating is exceeded.

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