Armstrong 33LD Ball Float Trap Socket Weld End

Armstrong 33LD Ball Float Trap Socket Weld End is a forged-steel, free-floating ball float drain trap designed for saturated steam service, using a hemispherical valve and seat and a guided lever to ensure a positive, leak-tight shutoff as condensate discharges. This 33-LD variant, part of Armstrong's 30-Series, features a socket-weld end connection in 1-inch nominal size, with socket-weld connection options available for installation. It carries a vessel-design pressure rating up to 1,000 psig at 100°F (69 bar at 38°C) and up to 600 psig at 750°F (41 bar at 400°C), reflecting suitability for high-pressure steam lines; the forged-steel body is typically made from ASTM A105 material. The design emphasizes reliable condensate drainage with a guided lever arrangement and an integral ball float that opens and closes to maintain drainage while minimizing steam loss. Typical applications include condensate removal in saturated steam systems, boilers, heat exchangers, and other process piping where an automatic drain trap helps protect equipment and stabilize steam efficiency.