Prevent water hammer damage to sprinkler systems with Milwaukee Valve’s slow-close Butterball valves. The slow-close Butterball controls the valve’s closing, eliminating shock that can cause pipes to fail. Available in 1” to 2 1/2” sizes with threaded or grooved ends, Butterball has UL and FM approvals up to 175 psi. The New York City Board of Standards and Appeals approves Butterball for 350 and 500 psi for high-rise applications. The valve’s patented design includes a triple O-ring seal for a bubble-tight seal and a seal-welded disc and steam for strength and durability. The Butterball can be ordered with a supervisory switch to eliminate field assembly and callbacks for switch adjustment.

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