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                                          連云港宇航石化設備制造有限公司產品分類
                                          Crane Tube
                                          Low Temperature Crane Tube
                                          Floating disc / inner floating disc
                                          Trestle/Trestle Work
                                          Oil Tank Accessories
                                          Floating oil outlet device
                                          Movable folding ladder
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                                            產品展示  product
                                           

                                          What is crane tube? (Brief introduction to crane tube)
                                          Usage: for transferring liquid products between trestle and car or train tank cars.
                                          Loading method: A. Tank car top open loading
                                          B. Tank car top closed loading
                                          C. Tank car bottom loading
                                          Balance method: counterweight balance, spring balance
                                          Drive method: manual, pneumatic
                                          Pipe material: carbon steel, stainless steel, carbon steel – polytetrafluoroethylene liner
                                          Sealing material: nitrile rubber, fluorine rubber, polytetrafluoroethylene
                                          Revolving joint: the sealing face is subject to build-up welding with stainless steel
                                          Specification: the standard design is DN50, DN80 and DN100. Other specification shall be designed and manufactured according to the user’s requirements.
                                          Design pressure: PN0.6~PN6.0MPa
                                          Design temperature: -196℃~200℃
                                          Optional accessories: automatic vacuum relief valve, manual vacuum relief valve, outer arm lock, inner arm reset lock, oil receiving box, globe valve, liquid level alarm system, heat tracing system.
                                          Selection principle: 1. select the model according to the brief diagram (see the selection example for selection method).
                                          2. Fill in the design conditions according to the crane tube design condition table.
                                          3. Select associated accessories.
                                          4. Select proper vertical pipe type and length C (describe whether to conduct subsurface loading).
                                           
                                          Land Liquid Loading Arm


                                          The land liquid loading arm (loading arm) is composed of rotating joints with good rotating flexibility and sealing performance and pipes, and it is a device used between the tank car and the trestle storage and transportation lines for the transmission of liquid medium.
                                          The key parts, i.e. rotating joints, are processed by precision numerically-controlled machine tools and they have the supporting structure with build-in double raceway, which rotates flexibly and is light and reliable. The outer ring adopts alloy steel while the inner ring adopts stainless steel or PTFE liner so as to ensure that the device can safely and reliably apply to high-temperature, low-temperature or highly-corrosive medium.
                                          The sealing ring adopts reinforced PTFE, and the lining stainless steel elastic supporting ring and sealing are polished, having excellent self-lubrication property and corrosion resistance.

                                           Instructions for model

                                          • ?Nominal diameter: Based on the diameter of the liquid-phase pipe of loading arm.
                                          • ?Code of using place: Letters AL means the loading and unloading work for train or truck tank.
                                          • ?Code of loading location: 1-Top loading 2-Bottom loading
                                          • ?Code of number of rotating joints: Calculating the rotating joints of liquid-phase pipe 4-4 rotating joints 5-5 rotating joints
                                          • ?Code of structure of gas-phase pipe: 0-No gas-phase pipe 1-Up-connected 2-Down-connected 3-Up-turning 4- Down-turning
                                          • ?Code of structure of liquid-phase pipe: 1-Up-connected 2-Down-connected 3-Up-turning 4- Down-turning

                                           Main models and diagrams of their structures

                                           Specifications / standards for design, manufacturing and acceptance

                                          - HG/T21608-96
                                          - H/QB1006-93
                                          - GB12459-90
                                          - GB 700
                                          - GB 3077
                                          - GB 8163
                                          - JB755-85
                                          - GB 308
                                          - GB 3323-87
                                          - DIN8563 T1
                                          - DIN8563 T2
                                          - DIN8563 T3
                                          - GB985-88
                                          - GB/T 8923-88
                                          - GB/T 13384-92
                                          Liquid Loading Arm
                                          Liquid Loading Arm – Manufacturing Part
                                          Steel Butt-Welding Seamless Pipe Fittings
                                          Standard Specification for Carbon Structural Steel
                                          Technical Requirements for Alloy Structure Steel
                                          Seamless steel Tubes for Liquid Service
                                          Technical Requirements for Forgings of Pressure Vessels
                                          Rolling Bearings -Steel Balls
                                          Methods for Radiographic Inspection and Classification of Radiographs for Fusion Welded Butt Joints in Steel
                                          General Tolerances for Welded Constructions – Dimensions for Lengths and Angles
                                          Quality Assurance during Welding, Requirements for Factories
                                          General Tolerances for Welded Constructions -- Dimensions for Shapes and Positions
                                          Basic Forms and Sizes of Weld Grooves for Gas Welding, Manual Arc Welding and Gas-shielded Arc Welding
                                          Rust Grades and Preparation Grades of Steel Surfaces before Application of Paints and Related Products
                                          General Specification for Packaging of Mechanical and Electrical Products

                                           Composition of structure

                                           Product features

                                          • The double-raceway rotating joints and the sealing rings having elastic clamp ensure the medium will not leak during loading;
                                          • The spring cylinder balancer equipped with neutral equilibrium makes the loading arm to be operated in a convenient and labor-saving way;
                                          • During the loading, it moves along with the tank within the normal moving range of tank;
                                          • When the loading arm is recovered, it is locked in the direction in parallel with the travelling direction of tank, occupying small space;
                                          • With rational structure, the smallest arm size can meet the most reasonable envelope scope.

                                           Main parameters

                                          • Applicable medium: Various liquid and gaseous products
                                          • Design temperature:-196℃-250℃
                                          • Nominal diameter: DN50-DN150
                                          • Design pressure: -0.08Mpa-6.0Mpa
                                          • Pipe material: Carbon steel, stainless steel, liner pipe
                                          • Work envelope scope
                                          • Key point for ordering: Please fill in the Loading Arm Design Data Sheet under the guidance of technicians of our company and provide related drawings.
                                          (crane tube) land type fluid handling arm


                                           AL1401

                                          Using place: Open loading work at the top of a tank truck; the pipe joint is downward
                                          Applicable medium: Crude oil, refined oil product, chemical medium
                                          Working pressure: 0.6Mpa-2.5Mpa
                                          Pipe material: 20#/304/316/ aluminum



                                           AL1402

                                          Using place: Open loading work at the top of a tank truck; the pipe joint is downward
                                          Applicable medium: Crude oil, refined oil product, chemical medium
                                          Working pressure: 0.6Mpa-2.5Mpa
                                          Pipe material: 20#/304/316/ aluminum



                                           AL1403

                                          Using place: Open loading work at the top of a tank truck; the pipe joint is upward
                                          Applicable medium: Crude oil, refined oil product, chemical medium
                                          Working pressure: -0.08Mpa-2.5Mpa
                                          Pipe material: 20#/304/316/ aluminum


                                           AL1412

                                          Using place: Open loading work at the top of a tank truck; the pipe joint is upward
                                          Applicable medium: Volatile and toxicant chemical medium
                                          Working pressure: 0.6Mpa-2.5Mpa
                                          Pipe material: 20#/304/316


                                           AL2503

                                          Using place: Closed loading work at the bottom of a train; the pipe joint is upward or sidewise
                                          Applicable medium: Low-fluidity medium, like crude oil
                                          Working pressure: -0.08Mpa/ self-flow
                                          Pipe material: 20#/304 aluminum joint


                                           AL2504

                                          Using place: Closed loading work at the bottom of a train; the pipe joint is upward or sidewise
                                          Applicable medium: Low-fluidity medium, like crude oil
                                          Working pressure: -0.08Mpa/ self-flow
                                          Pipe material: 20#/304 aluminum joint


                                           AL2543

                                          Using place: Closed loading work at the bottom of a truck; the pipe joint is sidewise
                                          Applicable medium: Liquid gas, liquid chlorine, liquid ammonia, etc.
                                          Working pressure: 1.0Mpa-4.0Mpa
                                          Pipe material: 20#/304/316


                                           AL1512

                                          Using place: Closed loading work at the top of a train; the liquid-phase pipe joint is downward or sidewise
                                          Applicable medium: Liquid gas, liquid chlorine, liquid ammonia, etc.
                                          Working pressure: 0.6Mpa-2.5Mpa
                                          Pipe material: 20#/304/316


                                           AL14.3 hydraulic pump type

                                          Using place: Open loading work at the top of a tank truck; the temperature is high and the medium is easy to volatilize
                                          Applicable medium: Light oil
                                          Working pressure: -0.08Mpa
                                          Pipe material: 20#/304/ aluminum pump


                                           Heat-tracing type

                                          Using place: Open loading work at the top of a tank truck; the medium has poor fluidity, and it shall be heated and kept warm
                                          Applicable medium: Crude oil, residual oil, pitch, etc.
                                          Working pressure: -0.08Mpa-2.5Mpa


                                           Liner type

                                          Using place: Open loading work at the top of a tank truck; the liquid-phase pipe joint is upward or downward
                                          Applicable medium: Highly-corrosive medium like strong acid or strong alkali
                                          Working pressure: -0.08Mpa-2.5Mpa
                                          Applicable models: AL1401 AL1402 AL1403


                                           Non-column type

                                          Using place: Various fluid loading environment; the installation site is narrow, not stopped or transformed
                                          Applicable medium: Various liquid medium
                                          Working pressure: -0.08Mpa--4.0Mpa
                                          Pipe material: All types of loading arms mentioned above

                                          Bottom loading arm
                                          This loading arm is a new product with proprietary intellectual property rights developed by our company based on the overseas and domestic market in recent years, meeting the safety and environmental protection requirements, and it can replace like products abroad.
                                          Lianyungang Aerospace Petrochemical Equipment Manufacturing Co., Ltd.
                                          Add:No. 20 South Road, Haizhou Economic Development Zone, Lianyungang, Jiangsu 0518-85380151 15312113188
                                          技術支持:信友科技 蘇ICP備07022253號
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