basic 1 min read
Pipeline Block Valves
Two types of block valves are used in Pipelines. 1. Sectionalising Valves 2. Emergency Shutdown Valves. It may not always be possible…
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basic 1 min read
Pipeline Sectionalising Valve
Pipeline block valves should be used to limit the release of line contents in case of leaks or pipeline ruptures …
basic 1 min read
Pipeline Valves
Various types of valves are required for successful and safe pipeline operation. They help in pipeline maintenance and also during…
basic 2 min read
Pipeline Markup, Cleanup and Restoration
1. Following type of markers shall be fabricated and installed along the pipeline route such that they do not cause any…
basic 1 min read
Pipeline Backfilling
1. Backfilling shall be carried out immediately after pipeline lowering in trench after inspection, so as to provide a natural anchorage…
basic 2 min read
Pipeline Crossing
Onshore Pipelines 1. The use of casings for the crossing of roads or railways should be discouraged because of the difficulty…
basic 1 min read
Pipeline Micro-Tunnelling
1. Micro Tunnelling process uses a Micro Tunnel Boring Machine (MTBM) combined with pipe jacking technique. 2. Pipe jacking from launch shaft…
basic 4 min read
Pipeline Trenching
Onshore Pipelines 1. Onshore pipelines should be buried to protect them from mechanical damage, fires and tempering. 2. The recommended minimum covers…
basic 1 min read
Pipeline ROU Clearing and Grading
1. All obstacles causing hindrance in construction / laying pipeline are removed. 2. Entire ROU is graded for movement of equipments and…
basic 1 min read
Pipeline Field Joint Coating
1. The cut-back areas of Coated Pipes where weld joints are made are to be Coated by Field Joint Coating. 2. Field…
basic 1 min read
Pipeline Holiday Detection
Holiday detection means testing the coating of pipeline with 15 KV or 25 KV Voltage for any pores in coating.
basic 1 min read
Comparison of Pipeline Coatings
Factor CTE 3LPE 3LPP FBE Service Conditions Temperature Upto 45C Upto 65C Upto 110C Upto 110C Anti Corrosion Properties Resistance…
