LPG Storage Tank
LPG Storage Tank
The Product contains all tests and data book with certificates.
- Inspection report (BUET / Other recognized 3rd party)
- Material certificate according to Standard which regulate pressure vessel for LPG and others, material must be min P355GH and similar. The material must have P indication which shows it is the only most suitable material for LPG use.
- Procedure qualification records (PQR)
- Welders Certificate
- Welding map
- Hydrostatic test
- Name plate
TANK PRODUCTION
Tank material (10mm) and dished head (12mm) made of P355GH and P355NH comply with EN10028-2 and tested lamination control based on Standard.
· Welded according to EN9606-1 (WPS&PQR)
· Tank shell consist of single module sheets
· Each module has only single welding seam
· Dished head or Bow thickness not less than critical calculation
· Welding of tank comply with standard
· Tank-tank and tank-bow welded by SAW
· Tank-nozzle by GTAW/SMAW
· Pipe-fittings and pipe-flange by TIG
· Welding preparations comply with standard.
· Welding wires comply with standard
NDT/RADIOGRAPHIC TEST/ HYRDOSTATIC TEST/ PNEUMATIC TEST
. Radiographic control is done by certificated technician by third party or BUET
· Nozzle-tank and manhole welding controlled
· Each tank will be applied hydrostatic test comply with standard
· Clean and fresh water will be used
· Water temperature will be above 15 C
· After hydrostatic test tank inside will be purified from water
· All fittings and connections will be check by foam
TANK PAINT
. All burrs, dust and oils etc. will be cleaned from tank outer surface before paint.
· Surface preparation and roughness quality will be SA 2 ½
· Grey Epoxy prime cover at 80-100 micron. 2 coats
· Second 80–100-micron barrier layer, 2 coat.
. Finish 50-60micron acrylic polyurethane
· Total paint will be in between 220-280micron
· Color: White/ RAL 9016
· Quality proven paint brands (Berger/Kansai-Nerolac) are used
· Liquid pipe line will be white and gas pipe line will be yellow
. Block Flange, 2” 300 lb
· Fixed Level Nozzles, ¼” NPT
· Rochester Flange
· Safety Relief Valve Flange, 2” NPT
· Drain Flange, DN50 PN40
· Return Nozzle, 3” 300 lb
· Manometer (0-25 bar), Ø 63.
. Thermometer (-30 / 60 ˚ C) Ø63
· 2” Safety Relief Valve
. 1” NPT Rota gauge (Rotary Level Indicator)
· Fixed Level Vent Valve (85%)
. Manhole