Xinglong Double Screw Pumps for Oil and Other Viscous Medium

Model NO.: XS series twin screw pump
Trademark: Xinglong
Transport Package: Plywood Packing
Origin: China
HS Code: 8413604090
Model NO.: XS series twin screw pump
Trademark: Xinglong
Transport Package: Plywood Packing
Origin: China
HS Code: 8413604090
Quick Details
gin: Zhejiang, China (Mainland), Hangzhou, China Brand Name: Xinglong
Model Number: XS series, XS09D070J21 Theory: Rotary Pump
Structure: Screw Pump Usage: Oil
Standard or Nonstandard: Nonstandard Power: Electric
Pressure: High Pressure Fuel: Diesel
Capacity Range: 0.5-1000 m3/h Application: Maritime
Pressure Range: 0-4.0MPa Pump Type: Positive displacement pump
Material: Carbon steel, cast iron, bronze, stainless steel 304/316, duplex SS Certification: CE, ISO9001,CCS
Heating fuction: Support Cooling fuction: Support
Relief Valve fuction: Support Packaging Details: Plywood packing
Delivery Detail: Usually within 20 working days after the contract signe

Specifications
1. suitable for various medium without solids or with fine solids 
2. CE, ISO and CCS certificates 
3. can be heated or cooled 
Xinglong double suction twin screw pumps are self-priming, double ended positive displacement pumps. They can handle virtually any non-homogeneous fluid, regardless of viscosity, lubricity or abrasiveness e. g. seawater, bitumen, molasses, lime, acid, caustic solution or hydrocarbon.
 
 
Performance
Capacity  Up to 1200 m3/h
 Pressure  Up to 4.0MPa (40Bar)     
 Temperature                      -50-320°C
 Viscosity  1-3×106mm2/s
Application
Oil production  Petrochemical industry     
 Ship building  Offshore production
 Power stations  Refineries
 Colors and Paints Industry  Tank transfer
 Bitumen, asphalt, pitch  Fire foam
 Marine  Drinks
 Food  Milk products
 Confectionery  Brewery
 
Features & Benefits 
•    Wide range of applications
•    Self-priming
Direct drive without speed-reducer possible
•    Compact construction
•    Change of pumping direction - simple
•    Pumping elements - simple to replace
•    Easy maintenance
•    For almost all media and fluids
•    High viscosities possible
•    Low noise level
•    Dry running possible
•    Constant flow on varying pressures and volumes
•    Very good suction performance up to NPSH 1 - 1.5 m/3 - 5 feet
•    Engineered 2-piece shaft and screw construction
Inner structure:
Xinglong Double Screw Pumps for Oil and Other Viscous Medium Quick Details
gin: Zhejiang, China (Mainland), Hangzhou, China Brand Name: Xinglong
Model Number: XS series, XS09D070J21 Theory: Rotary Pump
Structure: Screw Pump Usage: Oil
Standard or Nonstandard: Nonstandard Power: Electric
Pressure: High Pressure Fuel: Diesel
Capacity Range: 0.5-1000 m3/h Application: Maritime
Pressure Range: 0-4.0MPa Pump Type: Positive displacement pump
Material: Carbon steel, cast iron, bronze, stainless steel 304/316, duplex SS Certification: CE, ISO9001,CCS
Heating fuction: Support Cooling fuction: Support
Relief Valve fuction: Support Packaging Details: Plywood packing
Delivery Detail: Usually within 20 working days after the contract signe

Specifications
1. suitable for various medium without solids or with fine solids 
2. CE, ISO and CCS certificates 
3. can be heated or cooled 
Xinglong double suction twin screw pumps are self-priming, double ended positive displacement pumps. They can handle virtually any non-homogeneous fluid, regardless of viscosity, lubricity or abrasiveness e. g. seawater, bitumen, molasses, lime, acid, caustic solution or hydrocarbon.
 
 
Performance
Capacity  Up to 1200 m3/h
 Pressure  Up to 4.0MPa (40Bar)     
 Temperature                      -50-320°C
 Viscosity  1-3×106mm2/s
Application
Oil production  Petrochemical industry     
 Ship building  Offshore production
 Power stations  Refineries
 Colors and Paints Industry  Tank transfer
 Bitumen, asphalt, pitch  Fire foam
 Marine  Drinks
 Food  Milk products
 Confectionery  Brewery
 
Features & Benefits 
•    Wide range of applications
•    Self-priming
Direct drive without speed-reducer possible
•    Compact construction
•    Change of pumping direction - simple
•    Pumping elements - simple to replace
•    Easy maintenance
•    For almost all media and fluids
•    High viscosities possible
•    Low noise level
•    Dry running possible
•    Constant flow on varying pressures and volumes
•    Very good suction performance up to NPSH 1 - 1.5 m/3 - 5 feet
•    Engineered 2-piece shaft and screw construction
Inner structure:
Xinglong Double Screw Pumps for Oil and Other Viscous Medium

High Precision Machining

High Precision Machining is defined as a process of changing the dimensions or the performance of workpiece with machining facilities.

According to the temperature of the workpiece while in machining, high precision machining can be divided into cold working and hot working. Usually, machining under indoor temperature, and won't change cause chemical change or phisical phase change is named cold working. On the other hand, if under temperature, higher or lower than room temperature, which will lead to chemical changes or phase changes, it will be called as hot working.

For high precision machining, the machining tolerance can be up to 0.0001-0.001mm, the surface finish Ra can be 0.02-0.1um.

Machining precision is to describe the actual geometrical parameter of the part after machining, such as the size, the form, the position, comparing with the theoretical geometry parameter. The difference from these two parameters is the machining tolerance. The number of the difference show the machining accuracy, the bigger, the lower of the machining precision, the smaller, the higher machining precision.

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