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Eight-inch cast iron butterfly valve with pneumatic double-acting actuator, grey industrial finish

Milwaukee Valve

Milwaukee Valve GLA23E D 8" Double Acting Butterfly Valve Cast Iron

SKU CH-EYGJ-QZVQM

Pneumatically actuated 8-inch cast-iron butterfly valve with double-acting operation, EPDM seat, 150 psi water rating and 80 psi air inlet

  • Size8"
  • TypeOther
  • Reliable flow control for 8-inch piping systems
  • Double-acting pneumatic actuation enables automated operation
  • Cast iron body withstands 150 psi water pressure
  • EPDM seat resists wear in water applications
  • Manufactured under ISO 9001:2015 and ISO 14001:2015 quality standards

8" Pneumatic Butterfly Valve

This double-acting butterfly valve is built for industrial flow control where compressed air drives both opening and closing. The cast iron body and EPDM seat handle water service at up to 150 psi, making it suitable for HVAC, water treatment and general process piping. Eight bolt holes on an 11 3/4 inch bolt circle match standard 8 inch flange patterns for straightforward installation.

80 psi Actuation and 150 psi Service

The actuator requires an 80 psi air supply to operate the double-acting mechanism, providing positive control in both directions without spring return. Body pressure rating of 150 psi covers typical municipal and chilled-water pressures, while the EPDM seat resists water, dilute acids and many chemical treatments. No electrical connections or solenoid valves are needed for the basic pneumatic function.

Sustained Duty in Process Lines

Designed for repeated cycling in continuous service, the valve maintains sealing integrity over long periods when supplied with clean, dry instrument air. Cast iron construction resists mechanical damage in plant environments, and the lug pattern allows dead-end service with downstream piping removed. The unit carries ABS, ISO 9001:2015 and ISO 14001:2015 certifications for quality and environmental management systems.

Highlights

  • Reliable flow control for 8-inch piping systems
  • Double-acting pneumatic actuation enables automated operation
  • Cast iron body withstands 150 psi water pressure
  • EPDM seat resists wear in water applications
  • Manufactured under ISO 9001:2015 and ISO 14001:2015 quality standards

Specifications

BrandMILWAUKEE VALVE
Size8"
TypeOther

Questions about this item

How do I mount the 8" double-acting butterfly valve to a flange with an 11 3/4" bolt circle and eight 3/4-10 lug holes?

Align the valve's eight lug holes with the mating flange, insert 3/4-10 bolts through both flanges, and tighten in a cross-pattern to the specified torque so the EPDM seat seals evenly.

Which components of the pneumatically actuated butterfly valve will need periodic inspection or replacement?

The EPDM seat and pneumatic actuator seals should be inspected regularly and replaced if they show wear, cracking, or leakage during operation.

At what pressure limit does the 8" cast iron butterfly valve reach its maximum rating under sustained water service?

The valve is rated for a maximum water pressure of 150 psi, which is the primary limit for continuous duty in liquid applications.

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