If you are familiar with steam coils, you know how durable they have to be. Steam coils have to withstand great pressure and temperatures. That’s why Rahn Industries takes great pride in the quality of their steam coils.
Businesses trust us with their steam coil needs, we have manufactured hundreds of steam coils and delivered them to many satisfied customers.
Our steam coils are built to last, utilizing only the highest quality materials and most stringent quality standards. Call us today and find out what we can do for your business in providing you with the very best high quality steam coils in the business!
STEAM COIL SPECIFICATIONS
Standard steam coils can be used in applications where freezing is not a concern and on-off steam control valves are utilized. Steam distributing coils are used when near freezing air conditions exist or when modulating control valves are used.
2.Design Pressures & Temperatures
Coils are designed for 150 psi maximum operating pressure and maximum steam temperature of 365° F.
Coils are constructed with plate fin, die-formed aluminum or copper with self spacing collars. Standard aluminum material thickness shall be .0075 +/- 5% and standard copper material thickness shall be .006 +/- 5% unless otherwise specified.
All tubing and return bends are manufactured with seamless copper conforming to ASTM B75 and ASTM B251. Tubes are mechanically expanded to form an interference fit with fin collars.
All manifolds are constructed from seamless copper conforming to ASTM B75 and ASTM B251. Each return manifold has a factory installed air vent located at the highest point on the face of the manifold. All core tubes evenly protrude into the inside diameter of the manifold no more than a 1/8”.
All brazed joints utilize high temperature filler metals. Manifold connections are brazed with filler metal containing at least 5% silver.
Casing and tube sheets are manufactured from 16 gauge galvanized steel, meeting ASTMA527 standards. Coils up to ten feet will have a pitched casing toward the condensate connection, a minimum of 1/8” per foot. Coils over ten feet in length should be pitched at time of installation to ensure proper condensate removal.
Coils are pressurized with a minimum of 315 psi air pressure and completely submerged in water.