Product Name: 500 Liter Vertical Pressure Vessel Expansion Tank with Replaceable Bladder Membranes Model NO.: TY-07-500L-10-002 Type: Heating Expansion Vessels for Heating Systems Range of Applications: Power station, Life, Industrial Fuel: Coal Surface Treatment: Painted Customized: Customized Certification: CE, Kc, Water Mark Manufacturer: Taizhou Tianyang Electrical Co., Ltd Test Pressure: 12 Bar Tank Body: Steel Membrane: Nr/SBR/EPDM/Butyl Rubber Type of Membrane: Bladder (Can Be Replaced) Pipe Connection: Electroplating Steel Protection for Pipe Connection: Protection for Pipe Connection Color: Red/Blue/White/Black/Almond/Gra Medium: Water, Glycol Solution Max.Percent of Glycol: 50% Maximum Working Pressure: 8 Bar Pre-Charged Pressure: 1.5 Bar System Working Temperature Range: -10