Standard Steam Coils

Our standard steam coils are built with 5/8“ tubes and standard .025” wall thickness. Available with opposite or same end connections, our steam coils are designed to withstand up to 150 psig saturated steam supply pressure. Optional Sentry Guard™ freeze resistance available.

USA Coil & Air has an extensive library of OEM designs and can help with the replacement of all major OEM manufactured coils, including but not limited to: Carrier, Trane, McQuay, York, Heatcraft, Aerofin, American-Standard, Bohn, Colmac, Marlo and more.

Shipping

The equipment USA Coil & Air builds is specially made to order to meet your exact engineering requirements but we also understand time critical projects require quick turn around. Our expedited production program allows us to offer coil shipments in as little as 10, 5, 3 and 1 working days guaranteed.

Shipping Option

Cost

20 Business Days
Standard Shipment
10 Business Days
Added Premium
5 Business Days
Added Premium
3, 2, & 1 Business Days
Call for pricing & availability

See our Shipping Schedule for all other HVAC equipment offered.

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    Please note: Commercial equipment only – no residential products

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    Materials and Specifications

    Coil Fins
    FINS

    Secondary surface (fins) are of the plate-fin design using aluminum or copper, with die-formed collars. The fin design is to be flat, waffle, or sinewave in a staggered tube pattern to meet performance requirements. Collars will hold fin spacing at the specified density and cover the entire tube surface. Aluminum properties are to be Alloy 1100 per ASTM B209, with O (soft) temper; copper is to be Alloy 11000 per ASTM B152-06 with soft (anneal) temper. Fins are to be free of oils and oxidations.

    Hot Water Coils
    TUBES

    Tubes and return bends are to be constructed from seamless UNS C12200 copper conforming to ASTM B75 and ASTM B743. Properties shall be O50 light annealed, with a maximum grain size of 0.040mm. Seamless tubes are to be mechanically expanded into plate fins for maximum heat transfer. Minimum wall thickness: .025 for performance longevity.

    steamheaders220x200
    HEADERS

    Headers are constructed of seamless UNS C12200, Type L copper material sized to match specified connection size. Headers for steam distributing coils shall have die-formed end caps brazed on the inside of the headers. Headers for standard steam coils shall have finished integral spin-closed ends. All end closures are designed to withstand test pressure.

    steamconnections219x200
    CONNECTIONS

    Connection material can be copper, steel, or red brass pipe. The type of connection is to be sweat type, MPT or FPT, grooved, or flanged as required. Connections will be sized to accommodate supply steam and condensate loads. Steam distributing coil connection locations shall be such that steam is distributed adequately among all tubes, and that condensate is removed from all tubes to insure freeze protection.

    steamcasing366x200
    CASING

    Coil casing material shall be 16-gauge, G90 galvanized steel. Heavier gauge and optional material casings are available as required to meet specifications.  All tube sheet holes are to be oversized to allow for free thermal expansion and contraction of tubes during operation. Intermediate tube supports are to be provided on all coils 50” and longer in fin length. Coil casings on top and bottom of coils are to have double-flanged construction, allowing for vertical stacking of coils.

    Pressure Testing Gauge
    PRESSURE TESTING

    Coils shall be tested at 550 PSIG using dry nitrogen, submerged underwater. Dual-operator verification shall determine that all coils are leak-free.

    ahri-certified-logo-274
    CERTIFICATION

    All steam coils are to be AHRI performance certified and bear the AHRI symbol. Coils outside the scope of AHRI’s standard rating conditions or the manufacturer’s certification program will be acceptable since the manufacturer is a current member of the AHRI coil certification program, and all coils will be rated in accordance with AHRI Standard 410.

    STEAM COILS

    Standard/Base in Bold Below

    Tube
    O.D.
    Tube
    Thick
    Optional
    Tube
    Fin
    Thick.
    Optional
    Fin
    5/8”.025.035
    .049
    .006.0075
    .010
    1”
    (SD only)
    .035.049 .010N/A

    STEAM COILS

    Standard / Optional

    Fin MaterialAluminumOptional - Copper; Stainless Steel
    Casing Material16 gauge Galv. Steel Optional - 12, 14 and 18 Gauge Galv. Steel • 12, 14 and 16 Gauge 304 & 316 Stainless Steel • 14 Gauge Aluminum
    Connection
    Material
    CopperOptional Steel • Red Brass
    Tube
    Material
    CopperOptional - Stainless Steel, Cupro Nickel, Carbon Steel
    Header Material CopperOptional - Stainless Steel, Cupro Nickel, Carbon Steel

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