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QUALITY CONTROL PROCEDURE Doc.No. 465 / IX / PUI / 2020
Page • 2of5
HYDROSTATIC TEST
Rev. No.1
PT PRATAUTAMAINDONESIA Date •
30 / 09 / 2020
GENERAL
The Purpose ofthisdocument is to prepare and perform the Pressure Test of the Vessel.
The Testprocedure shall beexecutedas a holding time during atleast 30 minutes (see chart)withoutinterruption. Andtestedofthe Vessel as perASMESec.l,2019.
II. DOCUMENTREFERENCE
2.1 BS1113:19992.2 Peraturan Uap 1930
:Boiler and Pressure Vessel
III. EQUIPMENT
a. PressureGauge b. Temperature Gauge: ByTDKB : By :
IV. WATER
The Water taken from RO water line from Company, add fresh water with corrosion inhibitor or other chemical additive to reach standard water allowed as hydrostatic test water. When testing is released, it shall be done so as not to cause erosion, salt accumulation and cleanwithAquades.
Fluid type
WaterTemp.Range
:NormalWater : 22-49°C
V. PREPARATION OFWORK
6.1 Prior to start hydrostatic test of the Vessel, The NDT Clearance have signed by Inspector and allheattreatment (if required) have been performed.
6.2 Install the temporary blind flanges at both ends of the Vessel and all the Nozzles.
The blind flanges should be equipped with three dolet secure Christmas for pressure pump.
6.3 Locate the Pressure Gauge at high point and low point (1.5
-
4.0 x The testpressure).
6.4 Makesurethatweldingjoint free from coating.
6.5 Pressure Gauges shall be valid Calibrated (Not more than 6 months). The Certificate of calibration shall available for review by User.
TDKB