Process Vessels

Nilsan Nishotech designs and manufactures vessels of ASME standards, stainless steel mixing tanks for the pharmaceutical and biotech, food and beverages, FMCG industries which require putting the maximum priority on quality and integrity. We follow the highest standard factory acceptance testing, including material identification, Ra testing, Riboflavin test, Spray ball testing and Hydro testing. We include full documentation packages with weld inspection reports and Ra mapping.

We work closely with suppliers to develop features and opinions specifically designed to further enhance the sophisticated sanitary design of our Biopharma vessels.


  • We specialize in building customized stainless steel tanks and vessels according to customer specifications and performance requirements
  • Our tanks and vessels are designed to the principles of the ASME BPE standard. We can meet your need for ‘U’ stamped vessels
  • All tanks and vessels are built in a dedicated hygienic area
  • Heat transfer solutions for heating or cooling can be achieved by using dimpled, limpet, half jacketed, full jacketed or electrical heat tracing with insulation when required
  • Electro polishing can be done when required as part of the finishing process
  • Designed for fully drainable and cleanable using custom drilled spray balls. Riboflavin tests can be conducted to that all interior surfaces of the vessel have been thoroughly wetted by the CIP procedure


  • Pharma
  • Biopharma
  • Personal Care
  • Food & Beverages
  • FMCG Industries

Types of vessels

  • Personal & Home Care which include Creams, Lotions, Shampoos, Toothpaste etc.
  • Food & Beverages which include jams, ketchups, sauces, soft drinks etc.
  • Dairy Industry

QA Procedures

Our procedure requires material certification for the source of every component and piece of material that goes into a biopharma tank or vessel. We fabricate to the principles of ASME BPE for exacting form and fit. We have the capabilities to conduct a factory acceptance test on each vessel before dispatching. This includes a polish test using Ra mapping for surface roughness, a Riboflavin test using spray coverage of every square millimeter of the interior vessel to confirm complete coverage and a drainage test for full drain ability.


We understand why there is a need for the very exacting demands for documentation in the pharmaceutical and Biotech industries and we take them very seriously. We include full documentation packages for the entire project including the design along with design calculations, material certification, fabrication steps; all weld procedures, inspection and the final factory acceptance test.