utilityN₂CAS 7727-37-9
Valves for Nitrogen (N₂) Service
Nitrogen is an inert utility gas used throughout industry for blanketing, purging, pressurisation, and inerting of vessels, pipelines, and tanks. Gaseous nitrogen (GAN) is non-corrosive and inert, making material selection straightforward, though high-pressure nitrogen service (200–350 barg) and cryogenic liquid nitrogen require special attention to pressure ratings and embrittlement.
Pressure Range
5–350 barg (atmospheric to high-pressure GAN)
Temperature
−196°C (LN₂) to +150°C (heated nitrogen)
Industries
Air separation units, Chemical plants, Food & beverage
What valves are used for Nitrogen (N₂) service?
Ball Valve (floating or trunnion) are recommended for Nitrogen (N₂) service: Fast isolation for blanketing and purge lines; fire-safe design for process areas.
Key Properties - Nitrogen (N₂)
- Chemically inert - non-corrosive to virtually all metals
- Gaseous at ambient conditions, cryogenic liquid at −196°C
- Widely used for blanketing, purging, and leak testing
- High-pressure GAN at 200–350 barg in CNG and ASU service
- Asphyxiation hazard in confined spaces - oxygen displacement
Vajra Industrial Solutions manufactures and supplies valves for Nitrogen (N₂) service — including ball valve (floating or trunnion) — in corrosion-appropriate materials selected for the operating conditions described here, with full material and test documentation.
Need valves for Nitrogen (N₂) service?
Send your fluid conditions — we'll recommend the right valve, material and standard, with a 24-hour quote.
Material Compatibility - Nitrogen (N₂)
Ratings are indicative. Actual compatibility depends on concentration, temperature, velocity, and presence of contaminants. Always consult corrosion tables or a materials engineer.
| Material | Rating | Notes |
|---|---|---|
| Carbon Steel (WCB/A105) | Excellent | Excellent for ambient and elevated temperature nitrogen service. |
| SS 316L | Excellent | Excellent across all conditions including cryogenic liquid nitrogen. |
| A352 LCB/LCC | Excellent | Required for low-temperature nitrogen below −29°C. |
| Brass / Bronze | Good | Acceptable for instrument and utility nitrogen at moderate pressures. |
| PTFE | Excellent | Ideal for seals and lined valves in all nitrogen service. |
Recommended Valves
Ball Valve (floating or trunnion)
Fast isolation for blanketing and purge lines; fire-safe design for process areas
Full selection guideNeedle Valve
Precise flow control for instrument lines and low-flow purge connections
Full selection guideCheck Valve (piston type)
Prevention of backflow at nitrogen injection points and compressor outlets
Full selection guideSafety Relief Valve
Overpressure protection on nitrogen storage vessels and distribution headers
Full selection guideValves to Avoid
Diaphragm valves for high-pressure nitrogen above 40 barg
Butterfly valves for precise flow control in critical purging
Special Considerations
Applicable Standards
Shop Valves for Nitrogen (N₂) Service
Other Fluid Services
Nitrogen (N₂) Service — Procurement & Specification
Typical Applications
Available Standards
Material Options
Documentation Available
- -EN 10204 3.1 Material Test Certificates (heat traceable)
- -API 598 hydrostatic shell & seat test reports
- -Dimensional inspection reports
- -Full Manufacturing Data Record (MDR) / data book on request
Inspection Options
- -In-house QC inspection on every order
- -Third-party inspection (SGS / Bureau Veritas / TÜV / DNV) coordination
- -Witness and hold points accommodated on request
Order Quantities
Flexible — from single critical-spare valves to full project lots.
Export
Worldwide export with complete documentation (COO, EUR.1, packing lists) to 20+ countries.
Custom Engineering
Built to your specification — materials, trim, pressure class and special service (NACE, fire-safe, IBR, cryogenic).
Delivery Support
Dispatch from Vadodara, Gujarat with documented lead times and priority handling for urgent requirements.
Engineering references
Connected Engineering
Need Valves for Nitrogen (N₂) Service?
Tell us your fluid, pressure, and temperature — we'll recommend the right valve, material, and standard, with a 24-hour quote.