Armstrong International 33AV LD 1 2 B7614 Repair Kit

Armstrong International 33AV/LD 1/2 repair kit, part number B7614, is a genuine Armstrong replacement kit for free-floating lever air vents (AV) and gas vents (LD) in 1/2 inch line sizes. It supports Armstrong’s 33AV and 33LD configurations within the 30 Series family of AV/LD devices, which use a free-floating lever mechanism to vent air and noncondensable gases from steam systems. Specifically designed for field maintenance, this kit enables replacement of worn or damaged components to restore automatic venting performance and maintain a tight-sealing valve operation in 1/2" Armstrong AV/LD vents. Common applications include steam distribution lines, boiler feed circuits, and other equipment where continuous venting of trapped air and noncondensable gases is required to sustain efficiency and reduce noise and corrosion. With its 1/2" connection compatibility, the B7614 kit fits typical Armstrong AV/LD vent installations and is suitable for retrofit in existing installations. This kit complements Armstrong's replacement parts lineup for the 30 Series AV/LD devices and is suitable for retrofit in existing installations.