ASME 'U' & 'U2' Stamp Holder
G.RG. R. ENGINEERING
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+91 22 2496 0551 ~ 55 · sales@grengg.com

Products

Critical pressure equipment, engineered & fabricated in-house

From 425 MT single-piece pressure vessels to complete reactor–regenerator packages — every product is fabricated at our Tarapur works or at site, under one quality system.

High Pressure Vessels

Product Range

High Pressure Vessels

Shop-fabricated high-pressure vessels for refinery, petrochemical and process service — from HP storage drums and flare gas drums to crude de-salters — built to ASME Section VIII with 'U' & 'U2' stamps.

Maximum Diameter
6.5 m
Maximum Length
35 m
Shell Thickness
Up to 125 mm
Single-Piece Weight
Up to 425 MT

Materials of ConstructionCS, Clad — SA 516 Gr 60/70, SA 516 Gr 60 (NACE + HIC), SA 387 Gr 11 / Gr 22 + 316L Clad

Typical ApplicationsH₂ / HP storage, HC flare gas drums, compressor suction drums, condensate drums, slop drums, fuel gas separators, crude de-salters

Columns & Towers

Product Range

Columns & Towers

Regenerators, main fractionators, absorbers, strippers and treaters — shop fabricated up to 110 m in length, and site-fabricated well beyond where road transport ends.

Maximum Diameter
6.8 m
Maximum Length
110 m
Shell Thickness
Up to 102 mm
Single-Piece Weight
Up to 225 MT

Materials of ConstructionCS / LTCS, SS, LAS, Clad — SA 516 Gr 60/70, SA 537 Cl 1/2, SS 300 series, 347, 405, 410S, Duplex, SA 387 Gr 5 / Gr 11 Cl 1/2, 304L, 316L, 321

Typical ApplicationsRegenerators, main fractionators, absorbers, de-butanisers, strippers, stage strippers, amine absorbers, xylene columns

Shell & Tube Heat Exchangers

Product Range

Shell & Tube Heat Exchangers

Fixed tube sheet, floating head and kettle-type exchangers engineered for severe refinery and petrochemical duties, including high test pressures and exotic tube materials.

Tube Sheet Thickness
Up to 430 mm
Test Pressure
Up to 395 kg/cm² g
Diameter
Up to 2,100 mm
Number of Tubes
Up to 4,100

Materials of ConstructionShell: CS / LTCS (incl. HIC), SS, Super Duplex, LAS, Inconel/Monel Clad, Titanium, Brass, Cu-Ni · Tube Sheet: CS, SS, LAS, Clad · Tubes: CS, SS, LAS, Titanium, Fin Tubes

Typical ApplicationsReboilers, condensers, aftercoolers, preheaters, quench and fractionator train exchangers

Helix Heat Exchangers

Product Range

Helix Heat Exchangers

Helical baffle (Helixchanger®) exchangers supplied in quantity for mega petrochemical complexes — including 33 units for a single project at HMEL Bathinda.

Type
Helical Baffle / Helixchanger®
Executed Weights
Up to 155 MT per unit
Diameters
Up to 2,928 mm ID
Lengths
Up to 16.8 m overall

Materials of ConstructionCS, SS, LAS and clad construction to project specifications

Typical ApplicationsQuench oil / dilution steam preheaters & reboilers, quench water coolers, CGS aftercoolers, fractionator and refrigeration condensers

Reactors & Regenerators

Product Range

Reactors & Regenerators

Complete reactor–regenerator (RR / RXRG) packages for FCCU and PFCC units, executed on EPCC / LSTK basis — detailed design, procurement, fabrication, erection and commissioning.

Reactor Diameter
13,000 mm × 68,000 mm height
Regenerator Diameter
15,000 mm
Total Fabrication
1,200 MT per package
MOC
SA 516 Gr 70 & SA 387 Gr 11 Cl 1

Materials of ConstructionSA 516 Gr 70, SA 387 Gr 11 Cl 1 and project-specified alloy grades

Typical ApplicationsFCCU / PFCC reactor–regenerator systems, polymerization reactors, guard beds, treaters

Mounded Storage Bullets

Product Range

Mounded Storage Bullets

G. R. Engineering pioneered mounded storage in India — the first mounded LPG storage facility for GAIL in 1998 — and has since commissioned more than 113 storage vessels totalling 1,00,000 MT of capacity.

Vessels Commissioned
113+
Storage Capacity Installed
1,00,000 MT
Typical Size
Up to 8.5 m ID × 80 m long
Delivery Basis
LSTK turnkey — civil, piping, E&I, cathodic protection

Materials of ConstructionPressure vessel quality carbon steel to code and project specification

Typical ApplicationsLPG, propane, propylene and butane storage for refineries, petrochemical plants and import terminals

Horton Spheres

Product Range

Horton Spheres

Horton spheres supplied on EPC basis for storage and transfer of LPG, propane, propylene, butane and VCM across refineries, petrochemical complexes and nuclear plants in India and Sri Lanka.

Product Spheres
Up to 552 MT each
Check / Spec Spheres
Up to 286 MT each
Delivery Basis
EPC — design, fabrication, erection
Markets
India & Sri Lanka

Materials of ConstructionPressure vessel quality steels to code and client specification

Typical ApplicationsLPG / propylene / VCM storage for refinery, petrochemical and nuclear installations

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