For high-pressure steam service

Built for field durability

Operating within a functional range of -76°F to 302°F

always verify the 1/2" NPT tapping size and temperature range against your specific boiler’s manual to ensure proper aquastat compatibility

Armstrong International A18633 Float Refrigerant For high-pressure steam serviceThe Armstrong International A18633 Float is a critical replacement component engineered for high performance float and thermostatic (F&T) steam traps. Constructed from durable stainless steel, this float is designed to withstand the rigorous demands of industrial steam systems, ensuring reliable condensate drainage across varying pressures. It is specifically compatible with Armstrong B Series traps, including models 15B4, 30B4, 15B5, and 30B5, as