Nordstone | Ammonia Storage Vessel

Engineering, Design & Manufacturing Excellence

An Ammonia Storage Vessel is a specially engineered pressure container designed for the safe storage and handling of anhydrous ammonia (NH₃) used across fertilizer, petrochemical, refrigeration, and industrial applications. Due to the high toxicity, corrosiveness, and vapor pressure of ammonia, storage vessels must be designed with the highest safety, material integrity, and compliance standards.

What Is an Ammonia Storage Vessel?

An Ammonia Storage Vessel is a pressure-rated tank engineered to store anhydrous ammonia at controlled conditions. These vessels can be oriented horizontal or vertical, depending on the installation space, working capacity, and operational requirements.

Ammonia is commonly stored either:

As a pressurized liquid at ambient temperature, or
As a refrigerated liquid at –33°C (atmospheric pressure) for large-scale applications.

Key Features of Our Ammonia Storage Vessels:

✔ Precision Engineered for High Safety

Designed to ASME Section VIII Div. 1/2, PED, ISO, or customer-specific codes.
Built to manage ammonia’s high vapor pressure and corrosive behavior.
Equipped with multi-level protection systems for leak, pressure & temperature control.

Design Codes & International Standards:

ASME Sec. VIII Div.1 / Div.2
API 620 / API 650 (for large refrigerated tanks)
IS 2825 / EN 13445
TEMA / NACE MR0175
NFPA 30 & OSHA Guidelines
OISD Standards (India)

Material Selection for Ammonia Service :

Ammonia-Compatible Materials

Ammonia is highly reactive, especially with copper-based alloys. Our vessels are manufactured using compatible, corrosion-resistant materials:

Common Material Options

Carbon Steel SA 516 Gr. 60/70 (most widely used)
Low-temperature carbon steel (LTCS) for refrigerated storage
Stainless Steel (SS304 / SS316) for specialized applications
Internal coatings or rubber linings based on the operating environment

Typical Design Parameters

Parameter	Specification Range
Working Pressure	10 – 20 bar (pressurized systems)
Design Pressure	17 – 25 bar

Parameter	Specification Range
Working Pressure	10 – 20 bar (pressurized systems)
Design Pressure	17 – 25 bar
Design Temperature	–33°C to +55°C
Vessel Orientation	Horizontal / Vertical
Diameter	1,000 mm to 6,000+ mm
Length	Up to 25 meters
Storage Capacity	1 m³ to 200 m³ (customizable)
Corrosion Allowance	1.5 – 3 mm (as per standards)
Radiography	Spot / Full, as per criticality
PWHT	Applied wherever necessary

Vessel Appurtenances & Accessories :

Ammonia Storage Vessel Accessories

Instrumentation & Safety Devices

Safety Relief Valves (SRV)
Ammonia compatible level indicators
Pressure gauges
Temperature gauges
Electronic level transmitters
Emergency shut-off valves
Rupture discs

Nozzle Configuration

Manways (18” / 24”)
Process nozzles
Vent & drain lines
Piping connections (ANSI/ASME flanges)
NDE-tested weld joints

Safety Systems & Compliance :

Built-in Safety Layers

Given ammonia’s hazardous nature, we implement multi-tier safety provisions:

Over-pressure protection
Emergency venting systems
Ammonia-compatible gaskets & seals
Double-welded joints
Fire-safe valves
Leak-proof design with hydro & pneumatic testing

Testing & Quality Assurance

Every vessel undergoes:

Hydrostatic Pressure Test
Pneumatic Test (where required)
Radiography (RT)
Ultrasonic Testing (UT)
Magnetic Particle Testing (MPT)
Dye Penetrant Test (DPT)

All documentation is provided as part of the Manufacturer’s Data Report (MDR).

Types of Ammonia Storage Systems We Offer:

Pressurized Ammonia Storage Tanks

Operate at ambient temperature.
Require thicker walls.
Suitable for small to medium industries:

Fertilizer units
Cold-chain
Industrial process plants

Refrigerated Ammonia Storage Tanks

Operate at –33°C.
Large capacities (5,000 – 50,000 MT).
Used in large-scale plants:

Refineries
Petrochemicals
Large fertilizer plants
Import/export terminals

Transportable Ammonia Tanks

Skid-mounted tanks for mobile usage.
Used for smaller industrial applications.
Common uses:

Chemical plants
Small refrigeration units
Agriculture distribution

Applications of Ammonia Storage Vessels:

Industrial Sectors Served

Fertilizer Plants
Petrochemical Refining
Refrigeration & Cold Storage
Power & Energy Sector
Pharmaceutical Processing
Explosives Manufacturing
Chemical Industries

Advantages of Our Ammonia Storage Vessels:

✔

High Structural Integrity

Designed to withstand high pressure, low temperature, and corrosive nature of ammonia.

✔

Enhanced Safety

Equipped with multi-layered protection mechanisms.

✔

Custom-Built to Customer Needs

We tailor to exact pressure, temperature, and capacity requirements.

✔

Long Service Life

Optimized material selection and protective coatings ensure durability.

✔

Fast Delivery & Complete Documentation

With in-house engineering, fabrication, and NDE, we offer industry-leading delivery times.

Why Choose Us for Ammonia Storage Vessels?

✔

ASME “U” Stamp Certified Manufacturing

Ensures global acceptance of the vessel.

✔

Skilled Engineering Team

Expertise in ammonia, LPG, LNG, hydrogen, and other hazardous gas systems.

✔

Advanced Fabrication & Welding Facility

Automated welding, CNC rolling, and advanced heat treatment setup.

✔

100% Quality Control

Strict adherence to global design & fabrication standards.

✔

End-to-End Support

Engineering → Fabrication → NDT → Painting → Inspection → Delivery → Commissioning.

Ammonia Storage Vessel