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Brass spring-return ball valve with pneumatic actuator, 2-inch NPT threads

Dynaquip Controls

Dynaquip Controls PYHG8AUS074A 2 In NPT Spring Return Brass Trap

SKU CH-EGCP-NFJVZ MPN PYHG8AUS074A

A spring-return brass ball valve with 2-inch NPT connection, 400 psi rating and -4 °F to 176 °F range

  • TypeDrain Components
  • Spring return ensures automatic shut-off when air pressure fails
  • Brass body with nickel-plated stem resists corrosion in harsh environments
  • 400 psi CWP rating handles high-pressure pneumatic systems
  • RTFE seats maintain seal integrity across -4 to 176 °F range
  • Three-way FNPT design simplifies flow diversion in 2-inch piping

Spring Return Brass Ball Valve

This pneumatic actuated ball valve provides shut-off control in 2-inch NPT piping systems. The spring-return mechanism automatically returns the valve to its default position when air pressure is removed. A one-piece brass body with a three-way design and FNPT connections handles flow diversion or mixing tasks. The nickel-plated brass stem and Ni-Chrome plated ball resist corrosion in demanding environments.

Replaces Manual Or Non-Return Valves

The upgrade is justified when a process requires fail-safe operation that returns to a known state during air supply loss. An RTFE seat delivers reliable sealing up to 400 psi CWP across a temperature range of -4 to 176 degrees F. Standard L-port configuration directs flow between two outlets in a fixed pattern. This valve suits applications needing automated control without manual intervention.

Verify Port Configuration And Media Compatibility

Confirm the three-way L-port flow path matches your system design before ordering. The brass body and RTFE seats must be compatible with the specific fluids and temperatures in your installation. Ensure available compressed air supply meets actuator pressure requirements for reliable spring-return function. Proposition 65 warnings apply for chemical content.

Highlights

  • Spring return ensures automatic shut-off when air pressure fails
  • Brass body with nickel-plated stem resists corrosion in harsh environments
  • 400 psi CWP rating handles high-pressure pneumatic systems
  • RTFE seats maintain seal integrity across -4 to 176 °F range
  • Three-way FNPT design simplifies flow diversion in 2-inch piping

Specifications

TypeDrain Components
BrandDynaquip Controls
ModelPYHG8AUS074A

Questions about this item

What size pipe thread does the 2 inch NPT connection require?

The valve fits a 2 inch FNPT pipe thread for direct installation into matching female fittings.

How is the spring return actuator mounted and what alignment step is often missed?

The pneumatic actuator bolts to the valve's ISO mounting pad; the stem key must engage the ball slot before air pressure is applied.

When should the RTFE seat and stem seals be inspected or replaced?

Inspect seats and seals annually or after 400 psi pressure cycles; replace if leakage appears at the stem or ball interface.

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