• Air actuated spring loaded cylinder assures rapid positive closure
• Minimum water hammer with rapid closing
• Low pressure drop and streamlined flow
• Flat seats for maximum tightness with no wedging action
• Rugged integral disc and arm construction
• Pressure balanced disc assembly isolated from stuffing box friction and shaft end thrust

Applications
Low and high pressure pump discharge

Sizes
3" - 24" ANSI Class 900, 1500 and 2500