The Mueller UL listed and FM approved Check Valves are gravity operated, swing check design. These Check Valves are rugged in
construction and simple in design. Mueller Check Valves are designed to permit the removal of all parts through the top of the valve for
inspection or replacement without removing the Valve from the line. Check Valves are bossed on both sides of the body for connecting
by-passes and have a drain plug at the bottom under the inlet end for attaching a drain Valve. Ductile iron construction, lifting rings,
EPDM disc and bronze body seat rings are standard features.