1. Technical Specifications

• Medium: Liquid Ammonia (NH3)

• Nominal Volume: 90cbm（Other capacities of liquid ammonia storage tanks can be customized upon request.）

• Design / Test Pressure: 2.16 MPa / 2.70 MPa

• Shell / Head Thickness: 22 mm / 24 mm

• Dimensions (ID×WT×L): 12,720 mm × 3,244 mm × 3,834 mm

• Filling Coefficient / Mass: 0.95 / 44,460 kg

• Design Life: 15 Years

• Governing Standards: GB150 Steel Pressure Vessels & National Safety Regulations

2. Advanced Nozzle Configuration & Functional Benefits

• Liquid Inlet System: Extends deep into the vessel interior with a 45-degree miter cut end. This hydrodynamic design prevents the liquid medium from directly washing against the inner walls, substantially reducing localized erosion and corrosion while eliminating static build-up during rapid filling.

  • Flange Spec: HG20592 PL68-1.6 RF 16Mn (Low-alloy seamless steel)

• Liquid Outlet System Utilizes a detachable pressurized siphon/submerged pipe assembly. This allows the liquid to be smoothly discharged to higher or parallel process units under internal pressure, ensuring the collection of pure, precipitate-free medium.

  • Flange Spec: Shell joint HG20592 PL32-1.6 RF 16Mn (ID 25mm); Terminal HG20592 PL20-1.6 RF 16Mn

• Drain / Blowdown Nozzle: Strategically positioned at the absolute bottom of the shell. It allows complete evacuation of residual wash liquids and built-up corrosive sediments during maintenance turnarounds.

  • Flange Spec: HG20592 PL50-1.6 RF 16Mn, paired with J41W-16 Globe Valve.

• Level Gauge & Vent Nozzles: Configured for dual anti-frost glass tube level gauges (AI2.5-1260-50 HG/T21550-93) to ensure precise inventory verification. The dedicated vent pipe allows rapid displacement of air during initial filling cycles for counter-pressure-free loading.

3. Integrated Safety & Control Accessories (Optional)

To provide a turn-key solution, the tank can be pre-configured with high-integrity instrumentation:

• Safety Relief Valves: Dynamically sized according to system relief mass flow rates to prevent over-pressurization.

• Magnetic Level Indicators: Highly visible magnetic flaps with optional 4-20mA remote transmission.

• Industrial Pressure & Temperature Gauges for real-time control room monitoring.

Why Choose Our Pressure Vessels?

1. Stress-Relieved Longevity: Full PWHT eliminates residual welding stresses, drastically lowering the risk of Stress Corrosion Cracking (SCC) in ammonia environments.

2. Precision Manufacturing: Heavy-wall construction (22/24mm) provides a generous corrosion allowance, safely guaranteeing a 15-year operational life.

3. Traceable Quality: Complete QA documentation, including X-ray radiographic testing reports and hydrostatic test certifications, is provided with every shipment.