Painting Process

The surface of the LPG (Liquefied Petroleum Gas) storage tank body shall be coated with two coats of epoxy iron oxide primer and one coat of acrylic grey intermediate primer, followed by two coats of acrylic metallic topcoat. The warning sign “NO SMOKING OR OPEN FLAMES” shall be stenciled on the middle section of the tank, and “Next Inspection Date: YYYY/MM” shall be stenciled on the lower part of the saddle support.

Packaging and Transportation

Packaging and transportation shall strictly comply with the regulations of JB/T 4711-2003 “Coating, Shipping and Packaging for Pressure Vessels”.

Optional Safety Accessories
Safety valves, magnetic flap liquid level gauges, pressure gauges, thermometers, shut-off valves, etc.

Manufacturing Process of LPG Storage Tanks

Quality Authentication: Rigorous quality authentication is conducted on the pressure element materials, external dimensions, weld quality, operational performance, installation quality, internal devices, and safety accessories of the product.

Non-Destructive Testing (NDT): Non-destructive testing is performed on all welded joints, weld seams, tank heads, and various pressure-retaining components. Only products that pass these inspections are permitted to leave the factory, thereby guaranteeing product quality.

Heat Treatment & Testing: Before the application of the topcoat, the product undergoes stress-relief annealing heat treatment at 620°C, followed by hydrostatic testing and airtightness testing to ensure the safe application of the product.

Installation of LPG Storage Tanks

Due to their classification as special equipment, the installation of LPG storage tanks is subject to specific regulatory requirements. Installation personnel must hold nationally recognized fire safety qualifications to engage in the relevant installation work.

During the equipment installation process, strict adherence to mandatory regulations—such as fire separation distances—is required, with a primary focus on engineering quality. All associated systems, including piping, electrical, firefighting, water supply and drainage, and lightning protection facilities, must pass inspection by the supervisory authorities before being placed into service.

Item	Data
Filling Medium	Liquefied Petroleum Gas (Propane) / LPG (Propane)
Volume / Capacity	60 m³
Design Pressure	1.77 MPa
Design Thickness of Shell	14 mm
Design Thickness of Dish Ends	16 mm
Main Material / Base Metal	Q345R
Corrosion Allowance	1 mm
Heat Treatment Method	Stress-relief heat treatment (Post-Weld Heat Treatment / PWHT)
Tare Weight of Tank	12,750 kg
Maximum Filling Weight	25,200 kg
Overall Dimensions (ID × WT × L)	2728×14×10962mm
Filling Factor / Filling Ratio	0.95
Hydrostatic Test Pressure	2.22 MPa
Service Life / Design Life	20 years
Medium Density	420 kg/m³ (at 50°C)
Governing Standards / Codes	GB 150 Pressure Vessels; Supervision Regulation on Safety Technology for Pressure Vessels
Optional Safety Accessories	Safety valves, magnetic flap liquid level gauges, pressure gauges, thermometers, shut-off valves, etc.

Available Capacities: 10 m³, 15 m³, 20 m³, 25 m³, 40 m³, 50 m³, 60 m³, 80 m³, 100 m³, 120 m³, 200 m³, etc. Custom designs are also available based on specific user requirements.

Category: Pressure Vessel

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