Expansion Bladder Tanks Home / Expansion Bladder Tanks Standard Features: Vertical construction Carbon steel construction ASME code section VIII, Div. 1 Red oxide shop primer exterior Heavy duty Butyl Rubber replaceable bladder NSF 61 bladder for potable applications 125 psi Max Temperature 240 degrees F Lifting lugs 4″ High Skirt with base clips Pre-charged bladder at 12 psi Quick Ship inventory 5 available sizes from 175 gallon up to 1040 gallon. Optional Features: 150 psi R-16 Polyurethane, closed sell spray foam insulation w/ acrylic topcoat Stainless steel construction Contact factory for additional features Thermal Expansion tanks are used to help eliminate the expansion forces caused by heating and cooling of pressurized systems water. The tank air pressure must be field adjusted for proper system operation. It is important to properly charge the tank with enough pressure which equals the cold water supply pressure, prior to filling the system. Failure to properly pressurize the tank will cause the cold supply water to expand the bladder, greatly reduce the expansion capabilities. The heavy duty butyl rubber bladder keeps the system water separate from the tank, eliminating tank corrosion. The Niles Steel Tank Expansion tanks are designed for commercial heating applications and potable water applications. As the water is heated, it expands into the bladder and pushes against the air cushion. As the system cools, the pressure in the tank pushes the system water back into the piping, maintaining system pressure. Model Gal. (A) OverallHeight (B) TankHeight (C) Diameter SystemConnection WorkingPressure Weight EBT-30-063 175 67″ 63″ 30″ 1-1/2″ 125 465 EBT-30-075 210 79″ 75″ 30″ 1-1/2″ 125 505 EBT-30-085 240 89″ 85″ 30″ 1-1/2″ 125 550 EBT-36-072 285 76″ 72″ 36″ 1-1/2″ 125 675 EBT-36-078 310 82″ 78″ 36″ 1-1/2″ 125 707 EBT-36-085 340 89″ 85″ 36″ 1-1/2″ 125 750 EBT-36-090 360 94″ 90″ 36″ 1-1/2″ 125 780 EBT-42-081 435 85″ 81″ 42″ 1-1/2″ 125 1185 EBT-42-084 453 88″ 84″ 42″ 1-1/2″ 125 1216 EBT-42-093 505 97″ 93″ 42″ 1-1/2″ 125 1304 EBT-48-073 500 77″ 73″ 48″ 1-1/2″ 125 1293 EBT-48-096 675 100″ 96″ 48″ 1-1/2″ 125 1550 EBT-48-108 765 112″ 108″ 48″ 1-1/2″ 125 1685 EBT-48-120 860 124″ 120″ 48″ 1-1/2″ 125 1870 EBT-48-141 1040 145″ 141″ 48″ 1-1/2″ 125 2053 Sizing & Selection for Niles Steel Tank EBT Expansion Bladder Tanks: 1. Required total piping system volume: ________ Gallons Calculate the total length of each pipe size (diameter x length) used in the system. Add up volume from any storage vessels or holding tanks in the system. 2. Actual Gallon Volume in the boiler: _______ Gallons. Can be obtained from the boiler manufacturer. 3. Design water temperature:_________ Ranges from 120 to 180 degrees. 4. Minimum water temperature:________ Typically 90 degrees F. 5. Supply water pressure:_______ Ranges from 40 to 110 psi. Download PDF Get a Quote EBT-30-063 EBT-30-075 EBT-30-085 EBT-36-072 EBT-36-078 EBT-36-085 EBT-36-090 EBT-42-081 EBT-42-084 EBT-42-093 EBT-48-073 EBT-48-096 EBT-48-108 EBT-48-120 EBT-48-141 Products Chilled Water Buffer Tanks Electric Power Heater Series General Process Tanks Hot Water Generators Hydraulic Separators Indirect Water Heaters Insulation and Topcoat Linings Pipes and Fittings Solar Tanks Water Storage Tanks About NST Who We Are Facilities Capabilities Engineering Testing Get a Quote Careers Contact NST National, State, and Local Policies, Disclaimers, and Disclosures Get a Quote At Niles Steel Tank, we have experienced engineers who will calculate your request and promptly return the quotation. Get a Quote Niles Steel Tank is an American company with its manufacturing facilities located in the United States of America. Products made by Niles are manufactured in the United States using the finest raw materials and components from around the world to deliver the highest quality and value to our customers. Contact NST Niles Steel Tank Company PO Box 728 1701-A Terminal Road Niles, MI 49120 Email: info@nilesst.com Phone: 269.683.1910 Fax: 269.683.1953 Bradford White Corporation 725 Talamore Drive Ambler, PA 19002 www.bradfordwhitecorporation.com Subsidiary of ©Bradford White Corporation, ©2014 Niles Steel Tank. All Rights Reserved.