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Quick Details

  • Material: Iron, Ductile Iron
  • Technics: Casting
  • Place of Origin: Shandong, China (Mainland)
  • Model Number: DN50-1600
  • Brand Name: LXY
  • Connection: Flange/Socket/Spigot/Welding
  • Shape: Equal
  • Head Code: Square
  • Size: DN50-1600
  • Pressure: PN10/PN16/PN25
  • Standard: ISO2531,ISO9001,EN545,EN598,AWWA
  • Application: Waterworks Pipelines,Potable Water Pipeline
  • Internal Coating: Cement Mortar Lining/Epoxy Powder Coating
  • External Coating: Metallic Zinc+ Bitumen/Fusion Bonded Epoxy Coating
  • Accessories: Rubbter Rings/Bolts/Nuts/Gaskets
  • Rubber Ring Material: NBR, SBR, EPDM

Packaging & Delivery

Packaging Details Wooden Cases/Pallet with wrap film or according to customer's requirements.
Delivery Time Shipped within 25 days after payment

 Custom Made DI Pipe Fittings Anti-Corrosion Surface Coating All Flange Tee for Water Plant Pumping Station


Welcome to Qingdao Lotowin Pipe Fittings Co., Ltd.


Company Information


We have 20 years experience on pipes, fittings and valve casting. Our products are widely used in domestic market, European, North American, Japan and many other countries. Our experienced engineers can provide optimizing solution for all the process, will give you the perfect products with very good quality and reasonable price. Good quality products can help you expand the market, win the credit for your brand!



DN50-DN2000(2"-80"),  available with PN10, PN16, PN25 and PN40 flanges.


ISO2531, ISO4179, ISO8179, BS EN 545, BS EN598, BS4772, ISO7005-2, EN1092-2:1997, DIN2501, GBT13295


300PSI, 500PSI, 750PSI, 1000PSI

Pipe ends

Spigot, socket or flanges.

Internal coating

Cement mortar lining comply with ISO4179 or bitumen painting (Ave. min.70 micron) or Fusion Bonded Epoxy Coating

External coating

Sprayed metallic zinc coating (min.150g/m²) according to ISO8179 + bitumen painting (min.70 micron) or epoxy powder coating or epoxy painting or according to customer’s requirements.


In accordance with ISO 2531 / EN 545 / EN598 and 100% water pressure test.


NBR, SBR, EPDM rubber ring according to ISO4633 / EN681.1 are available.


Municipal Use,Waterworks Pipelines,Piping Fittings,Water Engineering,Potable Water Use,Irrigation Use,Water Supply Project Use,Water Treatment Plants Use,Pumping Stations,Water Utility Sectors,Water-Supply Pressure Pipeline,Potable Water Pumping Station,Stormwater Lines,Fire Water Pumping Station,Fresh Water Pumping Station, ect.


Dismantling Joint,Universal Flange Adaptor,Universal Coupling,Ductile Iron Loose Flange Joint,DI Pipe Fitting,Saddle for PVC Pipe,Repair Clamp,Qucick Flange Adaptor,Gibault Joint,Restrained Flange Adaptor,Restrained Coupling,Valve,etc.





 1. Competitive Price, fast delivery and strict inspection. We are factory, we supply pipes and fittings for more than 20 years, have experienced engineers, efficient workers and professional inspectors, it guaranteed our products have competitive price, short delivery time with very good quality.


2. Nearest to Qingdao Port and Qingdao International Airport, only need 1 hour to get there., it can save a lot of transport costs and time.


3. Comprehensive standards and materials for your choice.


4. 100% water pressure test before delivery.


5. One-stop buy. 


 Main Sales Area:





 Machining Workshop Layout



 Powder Coating Workshop



 Shot Blasting Room



 Foam Forming and Machining Workshop



 Water Pressure Testing Machine



To know more about our company's workshop and equipments, please visit: Equipments.


Packing & Inspection





Third Party Inspection:



Container Loading:



Packaging & Shipping


Packaging: Wooden Cases/Pallet with wrap film or according to customer’s requirements.

Shipment terms: FOB,CIF,CNF

Payment of goods:

First time cooperation, 30% deposit in advance, balanced to be paid before delivery. In the after days, 30% deposit in advance, balanced against copy B/L.


Surface & Coating


1. Pipe fittings surface
1> Pipes internal and external should clean and roundness, do not allowed to have flashes, burrs, cracks, winkles, sands, socket and flanges shrinkage to make the wall thickness thin, the defects of influence uses. Pipe fittings external slope seam does not allowed to exceed 1mm, internal and external surface blowholes depth do not exceed 2mm.
2> Flanges outline clear, do not allowed to have flashes, burrs, cracks, winkles etc. the defects of influence uses and machining.
3> Socket internal must clear, do not have grooving, lobe exceed to 1mm and blowholes depth exceed to 1mm and width exceed to 1.5mm. Every dimensions and outline must accurate and clear.
4> Small defections which do not affect usage of pipe fittings should use proper ways to repair it.


2. Coating
1> All the pipe fittings internal and external surface should have coatings. Water pipe internal have cement mortar lining, external and socket internal spray metallic zinc coating (min.150g/m²)according to ISO8179 and bitumen painting (min.70 micron).
3> For the gas pipes, internal coating is bitumen painting, same as external requirements.
4> External coating: Pipes and fittings external and socket internal coating are spray metallic zinc coating and bitumen painting.
5> Thickness requirements: Each area zinc layer average weight should not less than 150g/m², one place minimum thickness not less than 110g/m². Bitumen painting average thickness not less than 70 micron, one place minimum thickness not less than 50 micron.



 Custom Made DI Pipe Fittings Anti-Corrosion Surface Coating All Flange Tee for Water Plant Pumping Station

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China (Mainland) | Manufacturer, Trading Company
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