Hi all,
Observation: Paint flaking/getting peeled off easily( white metal is visible now)
Equipment: Piping(HDG)+ epoxy mastic coating( 3 coats)
We want to repair these peeled off areas. Is there any standards which describes how much area to be removed(Surface preparation) for the repair...
Hi everyone,
Is pressure test required for piping system which is open to atmosphere?
Sea water Intake and outfall pipelines(Around 1km in total length,HDPE-DN1000) which is submerged in a offshore trench and each spool(previously hydrotested ) is connected by bolted flanges. One end of...
Service: Filtered sea water
Material: Super Duplex Stainless Steel
Affected Equipment: 1. Pump casings(material EN 1.4469 (similar to ASTM A890 Grade 5A))
2. Interconnecting Piping( Super Duplex and SS 316)
Type: Seams like localized pitting corrosion in case of pumps. In...
Hi All,
We have found that Galvanized Stud bolts are heavily corroded. What is the corrective action to rectify the corrosion problem here?
Corroded material: Stud bolts
Occurrence: Interconnecting piping, Pump suction-discharge connections
Atmosphere: Near Sea open atm
Its been observed that...
Hi all,
What is maximum limit of pressure drop during leak test?
We are performing leak test for HDPE chlorine line(DN 75, offshore line) to check the integrity of flanged connections.
Individual spools are hydrotested(at 6 Bar) for welded connections at shop.
Leak test will be carried out at...
@Artisi @LittleInch
Thank you for the responses.
It was an observation from client QC personnel during inspection. This pump was installed a long time ago. We had only civil clearance documents such as casting, grouting...etc. Client wants to ensure that pump installed in this condition is...
Hi All!
What is the minimum clearance required between the foundation anchor bolts and foundation edge of a pump?
Des: The foundation Anchoring is by Anchor Pockets and these are formed during the initial foundation casting. Installation of pumps were as per the co-ordinates to align the...
