Chemical plant requirements for pumps

Chemical plants must meet the requirements of process parameters such as flow, lift, pressure, temperature, and NPSH.

1. It must meet the requirements of process parameters such as flow, lift, pressure, temperature, and NPSH. 2. The requirements of medium characteristics must be met: (1) For pumps that transport flammable, explosive, toxic or valuable media, shaft seals are required to be reliable or leak-free pumps, such as shielded pumps, magnetically driven pumps, diaphragm pumps, etc. (2) For pumps that transport corrosive media, it is required that the flow-through components be made of corrosion-resistant materials. (3) For pumps conveying solid particle media, it is required that the flow-through parts be made of wear-resistant materials, and if necessary, the shaft seals should be washed with clean liquid. 3, must meet the installation requirements of the site: (1) For pumps installed in the presence of corrosive gases, measures to prevent atmospheric corrosion are required. (2) For pumps installed outside the ambient temperature below -20 °C, it is necessary to consider the cold and brittle phenomenon of the pump and use low temperature resistant materials. (3) For pumps installed in explosive areas, explosion-proof motors should be used according to the level of the explosion area. (4) For factories that require annual overhaul, the continuous operation cycle of the pump should generally not be less than 8,000 hours. In order to meet the requirements of a three-year major overhaul, API610 (eighth edition) stipulates that the continuous operation cycle of pumps for the petroleum, heavy chemical and gas industries is at least 3 years. (5) The design life of the pump is generally at least 10 years. API610 (eighth edition) stipulates that centrifugal pumps for the petroleum, heavy chemical and gas industries have a design life of at least 20 years. (6) The design, manufacture and inspection of the pump shall comply with the relevant standards and specifications. The commonly used standards and specifications are shown in Table 1-1. (7) The pump factory shall ensure the performance of the pump within the range of power supply voltage and frequency variation. The range of supply voltage and frequency in China is: Voltage 380V±10%, 6000V+5%, 7% frequency 50Hz±0.5% (8) When determining the model and manufacturer of the pump, factors such as pump performance, energy consumption, reliability, price, and manufacturing specifications should be considered. Table 1-1 Pump commonly used standards, specifications Pump type Standards and specifications from heart Pump API 610 Centrifugal pumps for the petroleum, heavy chemical and gas industries ANSI B73.1M Technical specification for horizontal end suction centrifugal pump for chemical industry ANSI B73.2M Chemical pipeline pump technical specifications ISO 2858 End suction centrifugal pump (16bar) marking, performance, size ISO 5199 Centrifugal pump technical conditions (Level II) GB 3215 General technical conditions for centrifugal pumps for refineries, chemical and petrochemical processes GB 3216 Centrifugal pump, mixed flow pump, axial flow pump and vortex pump test method GB 5656 Centrifugal pump technical conditions (Level II) Metering pumps API 675 Metering pumps GB 9236 Metering pump technical conditions GB7783 Metering pump test method Reciprocating pump API 674 Reciprocating pump GB 9234 Motorized reciprocating pump technical conditions GB 7784 Motorized reciprocating pump test method JB 1053 General steam reciprocating pump technical conditions GB 9235 Steam reciprocating pump test method Rotor pump API 676 Rotor pump GB 10885 Single screw pump technical conditions GB 10887 Three screw pump technical conditions GB 9064 Screw pump test method

Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn

1. Product Informations of Aluminum Tube

 

Process of Aluminum Tube 

Processing: hot extrusion, whole punching seamless, cold drawn etc.  

Features of  Aluminum Tube

The relative products: Aluminum Alloy Tube, Aluminum Tube Coil, Seamless Stainless Steel Pipe, Aluminium flat tube.
Square Aluminium Tube

1. Tolerance of frame thickness: +/-0.1-0.25mm.
2. Alloy & temper: Grade 6000 Series, T4-T6
3. Thickness: 1.0mm or according to customer`s requirements.
4. Max. Length: 6.0m, export length for 20" Container: 5.8m. 

Round Aluminium Tube

1. Tolerance of frame thickness: +/-0.1~0.25mm.
2. Alloy & temper: 6063-T5, Grade 6000 Series.
3. Thickness: 1.0mm , according to customer`s requirements.
4. Diameter: 2.5mm or according to customer`s requirements.

5. Max. Length: 6.0m, export length for 20" Container: 5.8m. 

Packing for Aluminum Tube/Pipe:

Standard export packing, PVC protective film, plastic bag, wooden case/crate

 Surface Treatments of Aluminum Tube/Pipe: 

1) Anodizing
2) Polishing
3) Powder coated
4) Electrophoresis
5) Sand-blast
6) Coating film 
Applications for Aluminum Alloy Tube/Pipe:

1) Micro-motors
2) Cylinder machines without wearing sleeve
3) Pneumatic cylinder
4) Heat transfer equipment
5) Construction industry
6) Curtain track
7) Structure support
8) Irrigation pipes
9) Furniture 

China factory 6061 aluminum pipe price per kg                                                     

Aluminium Pipe

Aluminium Pipe,Extruded Aluminium Pipe,Cold Drawn Aluminum Pipe,Aluminum Tube

Shijiazhuang Huize Pipe Fitting Co., Ltd. , https://www.huizegd.com