NSSL PRIVATE LIMITED, formerly known as NSSL LIMITED, was established in 1988-1989. NSSL PRIVATE LIMITED has modernized their shop floor facilities by introducing a series of world class CNC Machines, Plasma Machine for Stelliting, MIG Welding Machines, Automatic Sub-arc Welding Machines, Automated Testing Stands, Helium Leak Test Machines and Portable Spectrometer. The unit with constant efforts, dedication and with the help of experienced technical personnel is now manufacturing Valves as large as 80 inch in pressure class up to ANSI 2500 psi in Cast Carbon Steel, Alloy Steel, Stainless Steel, Duplex Stainless Steel, Super Duplex Stainless Steel and various other Alloys (Monel, Hastalloy) ,Titanium for different applications.

The products are designed, manufactured and supplied to the International Standards, such as Gate Valves as per API 600/ISO -10434, ASME B 16.34 and API-603, Globe Valves as per BS-1873, ASME B 16.34, Swing Check Valves as per BS-1868, ASME B 16.34, Ball Valves as per BS-5351, ASME B 16.34 and Forged Steel Valves as per API-602, BS-5352.

The System and Procedures established in the company have been audited, accepted and certified for ISO 9001:2000.

The Valves manufactured in the unit are being used in the Core Sector projects and replacements. The clientele both in Government and in Non-Government Sectors are very wide. The encouragement extended by the prestigious customers in the field of Oil, Gas, Energy, Fertilizer, Steel Sectors, Power Plants and Nuclear Plants have helped the unit to develop and market products which are of imports substitute nature, such as valves for CRYO application, Valves for Sour Gas Application (NACE Standards as per MR-01-75) valves for Hydrogen service, Oxygen Service, Seismic Service and CNG Service.

The company is having in-house Cryogenic test facility since 1991 and Fire safe test facility to carry out the test as per relevant standard.