Sheet1Reactor Lifting lung Trunnion welding & NDE Flow chatWELDING

Lifting Trunnion Location marking and Thickness verification of Reactor sell

Paint removed

fit up inspection & pre heat temp. verification (240C)

Welding process- SMAW Consumable -E7018,interpass temp- min 240 C

Post heat temp (280 to 300C for min 30 minutes)

Release for Lifting the Reactor

If Hardness Above 200 HB

DPT & Hardness test (max 200HB)

DPT & Hardness test ( max 200 HB)

Failed

PWHT AT 593-649 C soaking temp

Failed

Passed

Release to Lifting the Reactor

Passed

Sheet2Reactor Lifting lung Trunnion welding & NDE Flow chatWELDER CONTROL FLOW CHART

Qualified Welder

Transfer Welder from LPG-4 Project

Test on FCC-Project

First Production Weld Two Joint's for any line class (5%, 10% & 100)

First Production Weld Ten Joint's for any line class (5%,10%&100%)

If RT Repair in for 5% & 10% line class

P1 & P2 will be carried out same date or near as date

Welder overall RT % will be maintained 5% ( other then first production weld & Penalty Joint's

Failed

Qualified Welder

Transfer Welder from LPG-4 Project

Test on FCC-Project

First Production Weld Two Joint's for any line class (5%, 10% & 100)

First Production Weld Ten Joint's for any line class (5%,10%&100%)

If RT Repair in for 5% & 10% line class

P1 & P2 will be carried out same date or near as date

Welder overall RT % will be maintained 5% ( other then first production weld & Penalty Joint's

Failed