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Standard Group Technical Blogs
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The Standard Group of Companies is a leading supplier of equipment in the chemical and pharmaceutical industry.

Part of the Standard Group includes Standard Glass Lining Technology Pvt. Ltd. which is headquartered in Hyderabad, India and is in a small global minority of companies who specialise in the supply of glass lined equipment.SGL products5

The Standard Glass Lined division operates from an ISO9001 manufacturing facility and has the capacity to manufacture 50-55 vessels per month ranging, from 63 litres to 16,000 litres. 

3D CAD and precision CNC manufacturing technology compliment a turnkey supply solution for all glass-lining requirements.

Glass lined equipment is manufactured in-house to exacting international quality standards including ISO 9001:2008, DIN EN ISO 28-721 and ASME VIII.

The use of glass-lined steel equipment is essential in order to maximise productivity and minimise costs in the production of quality products 

Production process.

In the production process and when the fabrication and machining is complete, all welds are subjected to Non-Destructive Testing (NDT) in accordance with latest ASME and international pressure vessel standards, to ensure joint integrity.Standard glass welding

The product is then normalised and shot-blasted to ensure all the surfaces are clean and have the optimum surface finish for mechanical adherence of the glass coating.Standard glass heat treatment

After applying the glass coating, SGL’s automated CNC furnace affects fusion between glass particles to cure the coating evenly to precise quality standards.


Throughout the glass coating process SGL check coating thickness, spark testing and visual inspection.

Material traceability is mandatory for international pressure vessel manufacturing therefore stringent procedures must be in place and adhered to routinely.

Material documentation and heat/cast number transfer instructions are recorded in the company’s business system against the job.

These instructions are printed on the manufacturing method sheet and form part of the “Job Traveller”; a full document pack which accompanies the product throughout the manufacturing process.

This innovative software is supported by test, case reference and theoretical data and helps to ensure SGL can offer the best advice to clients with integrity and confidence.


In addition to providing customised solutions, SGL has a range of modular glass-lined equipment designs which conform to international specifications including: 

  • ASME, Section VIII for Pressure Standards
  • DIN 28-136 for main vessel dimensions
  • DIN 28-137 for Drive mounting details
  • DIN 28-139 for Nozzle details
  • DIN 28-146 for Baffle details
  • DIN 28-147 for Thermo pocket details
  • DIN 28-150 for Split flange details
  • DIN 28-157 for Impeller agitator details
  • DIN 28-158 for Anchor agitator details


The correct selection of glass-lining technology for the desired application is of the utmost importance.

SGL has developed leading chemical selection software which documents the chemical resistance properties of glass-lining across hundreds of commonly encountered fluids, temperatures and concentrations.

This innovative software is supported by test, case reference and theoretical data and helps to ensure SGL can offer the best advice to clients with integrity and confidence 

Ideal glass lined applications: -Standard group glass lined reactors glass spraying

  • Fine chemicals
  • Pharmaceutical products
    • Dyes
    • Synthetic resins
    • Pigments
  • Chemical industry
  • Biotechnology
  • Food processing

SGL glass lined products: -

  • Steel reactors
  • Receivers
  • Storage tanks
  • Heat exchanges
  • Nutsche filters
  • Conical dryers
  • Impellers and paddles
  • Pipework, flanges & fittings
  • Valves

Benefits of Standard Glass technology:-

  • Excellent chemical resistance of glass against acid, alkalis and basic / neutral organics
  • Extremely smooth surface finish of glass
  • Good abrasive resistance
  • The non-permeable glass-lining is ideal for multipurpose plants who periodically change batch types
  • Good resistance to mechanical and thermal shock loading
  • No effect on the flavour, colour or purity of stored/processed products.

For more information click here or contact our UK and Indian offices directly.