Product Description

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

Ductile Iron Flange Fittings Standard: ISO2531, ISO4179, ISO8179, BS EN 545, BS EN598, BS4772, ISO7005-2, EN1092-2:1997, DIN2501, GBT13295    

Flange: PN10, PN16 or PN25 drilling in accordance with ISO 7005-2/EN 1092-2.    

Fluid Temperature: 0°C-50°C, excluding frost.    

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.    

Types: 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.    

Material: Ductile iron grade 500-7/ 450-12 in accordance with ISO 1083 for ductile iron fitting body and retainer, EPDM/NBR for ring, steel zinced/dacro for stub.    

Application: 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.    

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


Reducing flanges, otherwise called reducer flanges, have an opposite function than expander flanges seen above, i.e. they are used to decrease the bore of a pipeline. The bore of the run pipe can be safely reduced by only 1 or 2 sizes (otherwise a solution based on the combination of a butt weld reducer and a standard flange has to be used). 

Dimensions of Reducer Flange

  DN X dn  DN  dn  C  b  Mass (kg)
  PN10  PN16
  n  d1  n  d2




  80 x 60  8  M16  4  M16  27  22  5  5
  100 x 80  8  M16  8  M16  38  22  7.5  7.5
  150 x 80  8  M20  8  M16  32  22  9  9
  150 x100  8  M20  8  M16  32  22  9.2  9.2
  300 x 100  12 M20/M24  8  M16  51  26  30  30

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FAQ

  Q: Are you a manufacturer?

  A: Yes, we are a manufacturer, we have our own factory. And we are the leading company in our county. We promise that we are exactly the        reliable supplier you have been looking for. 

  Q:Can we visit your factory ?
  A:Yes, of course, we welcome you to visit our factory to check our production lines and know more about our capacity, quality.

  Q: Do you have quality control system?
  A: Yes, we have ISO, BV, SGS certifications and our own quality control laboratory.

  Q: Can you arrange the shipment for us?
  A: Yes, Our freight forwarders are through the company tender, signed long-term agreement, Price Service is the best. we have designated        sea-freight and railway  freight Forwarders with decades of experiences and we can get the best price with earliest vessel and professional          services.

  Q: How long is your delivery time?
  A: Generally it is 7-14 days if we have the exact goods in our stock. If not, it will take around 25-35 days to get goods ready
  for delivery.

  Q: How do you keep long-term business and good relationship ?
  A: 1.We keep supplying good quality products and competitive prices to ensure our customers' benefit.
  2. We think highly of every single customers of us and value the relationship, we take it not only as business partner, but also as true friends.      Will keep the good services and put customers’ benefit as high priority.

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