1. Working pressure 0.09 Mpa 2. Working temperature 250 celsius 3. Temperature lapse rate Less than 12 celsius/24h, feeding temperature more than 120 4. Tank material Q345B, 5/6 mm 5. End enclosure 5/6 mm, flanged flat head 6. Stiffener 6 mm, 4 pcs 7. Heating pipe �?57*3.5 mm, L = 77000/154000 8. Compound manhole DN500 9. Bitumen filling hole DN250 10. Anti-leaking breather valve DN60 11. Overhead nitrogen blanketing valve DN25 12. Sheet gasket PTFE 13. Bitumen protective frame 800*750*150 mm, with bitumen flooding pipe 14. Thermometer 0 to 300 celsius 15. Volumeter Ball floating type 16. Bitumen discharge valve DN80 17. Quick coupling DN80 18. Reserve feeding flange hole DN50/100, 2 pcs 19. Flange hole of bitumen DN50/100 20. Bitumen detecting valve DN25 21. Flange hole of heating pipe DN50, 2 pcs 22. Insulated layer 100 mm, glass fiber wool 23. External close plate 1.5 mm, cold rolled plate 24. Guardrail of ladder W = 400 mm Optional Configurations 1. Recognized register BV or LR 2. Heating system Oil, Flue or Electricity