Conventional Steam tracing

Transcription

1 Conventional Steam tracing

2 Conventional Steam Manifold Tubular Products 1 pipe (3 /sch. 80) 2 caps (3 ) 1 branch fitting (1-1/2 ) 1 branch fitting (3/4 ) 8 branch fittings (1/2 ) 4 nipples (sch.80/50 mm lg.) 4 nipples (sch. 80/100 mm lg.) Valves 8 (1/2 SW) TIME CONSUMING (welding etc) 2

3 Conventional condensate collection Manifold Many potential leaking points

4 Conventional Steam Manifold & condensate collection manifold

5 Armstrong Steam tracing

6 Steam Distribution Manifold Forged steel body Circuit connections, ½ or ¾ (SC or SW) MSD/SMSD Manifold Optional removable insulation jacket Optional support stand 4 to 12 circuits connections Optional integral drip trap station 6

7 Condensate collection Manifold with TVS-4000 trap station CCA manifold 8 circuit assembly less than 4 ft. overall height

8 Armstrong Steam Manifold & condensate collection manifold

9 No. Forged Manifolds Fabricated Manifolds Remarks 1 Forged steam distribution and forged condensate collection manifolds are made to A105N forging specification. 2 Forged steam distribution manifolds have integral built-in piston block valves at each connection port. 3 Forged condensate collection manifolds have integral branch reinforcement at each connection port. Fabricated steam distribution and fabricated condensate collection manifolds are made from CS pipe. Fabricated steam distribution manifolds have welded branch-o-let on pipe manifold, welded pipe nipple and welded gate valve. Forged Manifolds are superior since forgings have more structural integrity. Forged Manifolds are superior since 3 welds are eliminated at each connection port and since piston valves last longer than gate valves. Fabricated condensate collection manifolds Forged Manifolds are superior since 1 branch weld is eliminated at each have welded branch-o-let on pipe manifold. connection port. Close proximity of welds can warp small diameter piping unless cooled between welds, increasing production time. 4 Forged manifolds come with hot dip galvanized mounting stand. Fabricated pipe manifolds need support to be fabricated and welded. Forged Manifolds are superior since support design and support fabrication is not needed. 5 Forged manifolds have less number of overall weld points. Fabricated pipe manifolds have more number of overall weld points. Forged manifolds are superior since lesser number of welds means - lesser fabrication/testing cost and - lesser potential leak points 6 Forged manifolds have less number of components due to its integral design and the components are included in the scope of manifold supply. Fabricated pipe manifolds have more number of components and have to be individually specified and procured. Forged manifolds are superior since lesser number components means - lesser design time - lesser bid review time - lesser supplier doc review time - lesser procurement time - lesser effort to document MTRs -less NDE required This advantage is significant considering that a large quantity of components will be involved for steam tracing systems.

10 No. Forged Manifolds Fabricated Manifolds Remarks 8 Forged manifolds come with 5-yr warranty from manufacturer and additionally get included in the field hydrotest loop. Fabricated pipe manifolds are only subjected Forged manifolds are superior from warranty stand-point. to the code minimum inspection and hydrotest. 9 Forged manifolds manufacturer warranty allows single point responsibility for end user. 10 Forged manifolds come with trap stations and traps installed. Fabricated pipe manifolds have different responsibilities such as for basic components, fabrication, valves, trap and design. Fabricated pipe manifolds require fabricator to install the trap stations and traps. Forged manifolds are superior from responsibility stand-point if anything goes wrong. Forged manifolds are superior since the manufacture of the manifolds and trap stations/traps being the same, will install them correctly unlike in the case of pipe fabricator who can install the trap stations and traps incorrectly. 11 Forged manifolds have ports that are spaced by manufacturer to accommodate steam traps of different types and dimensions in their product range. 12 Forged manifolds overall installed cost is expected to be lesser than that of fabricated pipe manifolds. Fabricated pipe manifolds would need design effort to ensure that the spacing of ports can accommodate selected manufacturer s trap stations and traps. Fabricated pipe manifolds overall installed cost is expected to be higher than that of forged manifolds. Forged manifolds are superior since the spacing takes into account all different traps and their maintenance clearances. Dimensions will be more consistent. End users can standardize the design across different plants designed by different EPC contractors. Forged manifolds are superior due to lesser cost of - design time -bid review time - supplier doc review time - procurement time - expediting time - inspection & receiving time - fabrication - testing NDE, x-ray - shipping - field handling - installation - labour - space requirements

11 Advantages: Factory Design Factory engineered Factory assembled Factory-tested Factory 3-year guarantee 11

12 Best Practices The Armstrong Solutions Typical Field Installations 36 [914 mm] = The Armstrong Solutions TVS ¾ Trap Valve Station Steam Distribution Manifold = SMSD = CCA/CCAF Condensate Collection Manifold 1 2