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Rahn Industries

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TEMPLATES & SPECS

FLUID COIL SPECIFICATIONS

Our ac coils are built using the exact specifications that will allow your HVAC unit to run at maximum efficiency.

DESIGN PRESSURES AND TEMPERATURES

Coils shall be designed to withstand up to 650 psi maximum operating pressures and a maximum temperature of 500 degrees F for standard duty copper tube coils with standard headers. Higher limits are available, depending on coil construction and/or materials used.

FACTORY TESTING REQUIREMENTS

Coils are to be pressurized and then completely submerged in warm water for leak testing and tested with a minimum of 500 psi (unless higher pressure is required) air pressure for standard copper tube coils. After testing, coils are to receive a 5 lb. Nitrogen charge assuring the coil as received remains leak free and clear of internal contamination.

FINS

Coils shall be of plate fin type construction providing uniform support for all coil tubes. Coils are to be manufactured with die-formed aluminum or copper with self-spacing collars. Standard fin thicknesses available will include .006, .0075, .010 +/- 5% for aluminum and copper other thicknesses available

Fins are to be formed with full collar on all available materials, corrugation styles, tube diameters and tube patterns.

TUBING

Tubing and return bends shall be fabricated from UNS 12200 seamless copper conforming to ASTM B75 for standard pressure and temperature applications. Core tubes shall be mechanically expanded to form an interference fit within the fin collars. Expansion shall not decrease the tube wall thickness.

Coils shall be manufactured using return bends of the same material as the core tubing. Return bend wall thickness, at the outside circumference of the bend, shall be no less than the core tube wall thickness. Please call us for available tube size and wall thicknesses.

Coils shall be made available with copper tubes utilizing internally enhanced Rifled Surfacing when required.

HEADERS

Headers shall be constructed from UNS 12200 seamless copper conforming to ASTM B75 and B251 with an H55 temper for standard applications.

CONNECTIONS

Standard construction of copper tube condenser coils shall allow for copper sweat connections for type L or K wall copper. Other materials shall be made available dependent upon the materials of construction of the tube core.

BRAZING AND WELDING

Gas brazing, using fillet rod material of minimum 5% silver shall be used for all not-ferrous tube joints to headers and connections. Ferrous to non-ferrous joints shall contain as much as 35% silver or may be Tobin bronze.

CASING

Coil casing and endplate shall be fabricated from 16-gauge Galvanized steel, as a standard construction, meeting ASTM and UL G90U requirements. Aluminum, 0.080” thick, 16 or 18 gauge stainless are optional. Double-flange casing shall be provided when coils are specified as vertical stacking.

Standard coil intermediate tube sheets (center tube supports) shall be fabricated from the same gauge sheet stock and material as the end plates. For custom-made field replacement condenser coils, all intermediate tube sheets shall be of the same quantity and placement as the original OEM coil.

DRAWING TEMPLATES

Booster Coils
  • Booster Coil Drawing Template
Condenser Coils
  • Condenser coil template_L-Shape
  • Condenser coil template_Standard 2D
  • Condenser coil template_Standard
  • Condenser coil template_U-Shape
Chilled Water Coils
  • Water Coil Standard
  • Water Coil Split Manifold
  • Water Coil Split Manifold 2 Conn.
  • Water Coil Slip Drive
  • Water Coil Opposite End Connections
  • Water Coil No Manifold
Evaporator Coils
  • Water Coil Standard
  • Water Coil Split Manifold
  • Water Coil Split Manifold 2 Conn.
  • Water Coil Slip Drive
  • Water Coil Opposite End Connections
  • Water Coil No Manifold
Hot Water Coils
  • Water Coil Standard
  • Water Coil Split Manifold
  • Water Coil Split Manifold 2 Conn.
  • Water Coil Slip Drive
  • Water Coil Opposite End Connections
  • Water Coil No Manifold
Steam Distribution Coils
  • Steam Coil Standard
  • Steam Coil Dual Supply
  • Steam Coil Horizontal
  • Steam Coil Opposite End Connections
  • Steam Distribution Coil Standard
  • Steam Distribution Coil Unpitched Casing
Refrigerator Coils
  • DX Coil Single
  • DX-Coil Single No Top Bottom
  • DX-Coil Interlaced in Line Distributor
  • DX Coil Face Control
  • DX Coil A frame Single System
  • DX Coil Single-In-Line
Air Cooled Condenser
  • Air Cooled Condensors
PHONE

Toll-Free: (800) 421-7070
Local: (562) 908-0680

ADDRESS

2630 Pacific Park Drive, Whittier, CA 90601

WE ARE OPEN

Mon - Fri: 8 AM - 5 PM

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An Important Message to our Valued Customers

Rahn Industries takes pride in knowing that our high-quality products are used in the HVAC and Refrigeration systems of countless critical infrastructure industries and businesses across the U.S. including:

– Hospitals and other Healthcare Facilities

– Data Centers

– Food Service and Grocery Stores

– Transportation systems

– Power Plants

– Oil and Gas (Refineries and production facilities)

We know that you count on us as an important link in the supply chain to keep these critical systems running. As a result, we want to assure you that we will remain open for business so that the integrity of your supply chain stays intact.

We are hyper-aware of the benefits of social distancing, and have taken steps to ensure the health and safety of our employees and their families during this time. We have instructed several staff associates to work from home, redistributed other staff to utilize empty office space in satellite buildings, are sanitizing our work spaces regularly, and are emphasizing personal hygiene with all of our employees.

We thank you for your trust, your support, and your valued business! Please be safe out there.

Sincerely,

President

 

Dear Valued Customer,

The safety of our families, employees, customers and vendors is of extreme importance to Rahn Industries at this time of the COVID-19 pandemic.  With that, Rahn Industries is implementing extraordinary precautionary measures during this extraordinary social and business environment that we find ourselves in.

Rahn Industries is suspending until further notice all field measurements (sizing). This step is to minimize our employees, customers and any others to the virus exposure.  We value your business and want to ensure our customers that Rahn Industries will provide our full assistance for coil sizings. Our entire engineering staff is on stand-by to assist you in performing this action.  We have available a field sizing PowerPoint presentation, drawing templates, skype, WhatsApp, facetime, one-on-one; step by step instructions and smartphone communication/video.

Rahn Industries will also temporarily suspend our outside sales force from their normal outside activities and any face-to-face meetings.  We will also temporally suspend visitors and vendors from visiting our facilities.

Even though I know you understand, I am still sorry for any inconvenience this action may have.

Thank you for your understanding and for your most appreciated past and future business.

 

Sincerely,

President

 

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