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Red Hat

Red Hat 8290A791 Angle Body Piston Valve 3/8 in 316L SS 240 psi 150 psi

SKU CH-WEAM-BFN4T MPN 8290A791

Angle-body piston valve controls air, inert gases, light slurries, oil and water with a 2.3 Cv flow coefficient

  • TypeDrain Components
  • 316L stainless steel body resists corrosion
  • PTFE seals handle air, inert gases, light slurries, oil and water
  • 3 Cv coefficient delivers high flow capacity
  • 240 psi water and 150 psi steam pressure ratings
  • Normally closed 2-way angle body design

Angle-body piston valve for fluid control

The Red Hat 8290A791 is a 2-way, normally-closed piston valve built for air, inert gases, light slurries, oil and water. Its 3/8 in pipe size and 3/8 in orifice suit compact piping runs in commercial and light-industrial systems. Indoor and outdoor ratings let installers place it where the process demands without extra enclosures. Buyers who need a larger bore or a different actuation style will have to select another model.

316L stainless body with PTFE seals

The body is 316L stainless steel and the seals are PTFE, a combination that resists corrosion from aggressive media and handles temperatures found in steam service. An angle body layout turns the flow path 90 degrees, saving space against walls or equipment skids. Pressure ratings reach 240 psi for water and 150 psi for steam with zero minimum differential, so the valve opens reliably even at very low flow.

Coefficient of volume 2.3 for sizing calculations

A Cv of 2.3 gives engineers a fixed flow factor for pipe-sizing and pump-selection work, removing guesswork from system design. No extra accessories, actuators or software are bundled; the valve ships ready for direct plumbing into the line. Teams that require integrated position feedback or a different voltage coil must source those components separately.

Highlights

  • 316L stainless steel body resists corrosion
  • PTFE seals handle air, inert gases, light slurries, oil and water
  • 3 Cv coefficient delivers high flow capacity
  • 240 psi water and 150 psi steam pressure ratings
  • Normally closed 2-way angle body design

Specifications

TypeDrain Components
BrandRed Hat
Model8290A791

Questions about this item

What does the 240 psi water rating and 150 psi steam rating limit in practice?

The 240 psi water and 150 psi steam ratings cap the maximum operating pressure differential for those media, with a minimum of 0 psi required to actuate the piston.

What pipe size and body material must the installation accommodate?

The valve requires a 3/8 inch pipe connection and fits a 316L stainless steel angle body with a 3/8 inch orifice.

How is the normally closed valve installed, and what wiring step is often missed?

Install the angle body in the flow direction marked on the 316L stainless steel body, then energise the coil to open the PTFE-sealed piston; the step often missed is confirming the coil voltage matches the supply before wiring.

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