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Brass pneumatically actuated diaphragm valve with NPT connections

ASCO Power Technologies

ASCO Power Technologies P210D095 2-Way Air Valve 3/4 in FNPT Brass Buna-N 125 psi 180°F 5.5 Cv

SKU CH-XHNG-0Z5BX

Pneumatically actuated 2-way diaphragm valve with brass body, Buna-N seals, 5.5 Cv flow, 125 psi and 180 °F limits

  • TypeRunner
  • Normally closed design prevents unintended flow
  • Brass body with Buna-N seals handles water, steam, and gas
  • 5 Cv coefficient delivers strong flow capacity
  • 125 psi rating suits demanding pneumatic systems
  • 180 °F max temperature supports hot media applications

Valve for gas, steam and water

The ASCO P210D095 is a pneumatically actuated diaphragm valve built for gas, steam and water lines. Its brass body and Buna-N seals suit industrial fluid control where a compact 2-way normally closed design is required.

125 psi rating with 180 °F limit

The valve handles up to 125 psi operating pressure and a maximum media temperature of 180 °F. A 1/8 in FNPT actuator air port drives the diaphragm, so compressed air supply pressure and quality determine response speed and cycle life.

5.5 Cv flow coefficient decides sizing

The 5.5 Cv value sets the flow capacity for a given pressure drop. Engineers must match this coefficient to system demand; lines needing higher or lower flow will require a different valve size.

Highlights

  • Normally closed design prevents unintended flow
  • Brass body with Buna-N seals handles water, steam, and gas
  • 5 Cv coefficient delivers strong flow capacity
  • 125 psi rating suits demanding pneumatic systems
  • 180 °F max temperature supports hot media applications

Specifications

BrandASCO
TypeRunner

Questions about this item

How do I connect the 1/8 in FNPT actuator air port and the 3/4 in FNPT media ports, and what step is often missed?

Apply thread sealant to all NPT connections, then torque the 3/4 in media ports and the 1/8 in actuator port to spec; the step most often missed is pressurising the actuator port to verify the diaphragm shifts before putting the valve into service.

Which component will need replacement first and how can I tell?

The Buna-N diaphragm and seals wear first; plan to replace them when you see external leakage, sluggish actuation, or a drop in the 5.5 Cv flow capacity during routine inspection.

At 125 psi and 180 °F continuous duty, what limit appears first?

The Buna-N diaphragm reaches its 180 °F temperature ceiling before the brass body hits its 125 psi pressure limit, so sustained steam or hot-water service at the top of the temperature range will degrade the seal first.

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