Double Flange Reducers Used In Water Supply Drainage Petroleum Chemical

Product Specification

Payment Terms	L/C, T/T	Supply Ability	1000 tons per month
Delivery Time	2 weeks	Packaging Details	wood pallet, ton bags
Product Name	Double Flange Reducers Used In Water Supply Drainage Petroleum Chemical Industries	Key Words	Flange Elbow, flange bend， Flange Reducers
Material	Ductile Iron/ Cast Iron	Technics	Casting
Shape	Reducing	Connection	Flange
Type	elbow, bend	Size	DN200
Standard	ISO2531/EN545	Color	Black, blue or OEM
Usage	Joining Pipe Lines	Packing	Wood pallet
Oem	Yes	Pressure	PN16
Application	Water supply project, drainage, sewerage, irrigation, water pipeline	Internal Coating	Cement mortar lining
External Coating	Black bitumen painting	Loading port	Xingang port / Qingdao
Brand Name	SND FOUNDRY	Model Number	Pipe fittings
Certification	ISO / CE	Place of Origin	China
High Light	double flange reducers for water supply ，pipe fittings for petroleum industries ，chemical resistant double flange reducers

Double Flange Reducers Used In Water Supply Drainage Petroleum Chemical Industries

 

 

    Double-flange reducers are pipe fittings used to connect pipes of different diameters, achieving a transition between pipe diameters. The flanges on both ends facilitate bolted connections to other pipes and valves, making installation and removal quick and easy. They are widely used in industries such as water supply and drainage, petroleum, and chemical engineering, ensuring smooth fluid flow and reliable connection of pipes of varying diameters within piping systems.

Double flange reducer has the following advantages:

 

Strong Connection Compatibility

Compatible with Different Pipe Diameters: Other pipe fittings, such as standard elbows and tees, are typically used in pipe systems with the same or similar diameters. Double-flange reducers, however, can connect pipes with significantly different diameters, such as transitioning from a DN50 pipe to a DN200 pipe. This meets the needs of complex pipe networks due to varying flow rates and varying equipment interfaces.

Compatible with Multiple Connection Methods: Flange connections facilitate connection with various piping equipment, including valves, flow meters, and filters, that have flanged interfaces. However, socket-type and threaded pipe fittings have relatively limited connection methods and applications. For example, socket-type fittings are generally suitable for small-diameter, low-pressure water supply and drainage pipes.

 

Easy Installation and Maintenance

High Installation Flexibility: During installation, the double-flange reducer is secured with bolts, making fine-tuning the installation position and angle easier. Compared to welded reducers, this eliminates the need for complex welding equipment and specialized techniques, and eliminates the need to consider the effects of high welding temperatures on the pipe material. This significantly reduces installation time and effort.

Easy Repair and Replacement: During maintenance, if a double-flange reducer or its connected components develops a problem, replacement or repair can be performed by simply loosening the bolts, without disrupting the entire piping system. Replacing welded fittings, on the other hand, requires cutting and re-welding, a complex operation that can potentially affect surrounding piping.

 

Good Sealing and Stability

Reliable Sealing: Using a gasket and bolting to secure the connection creates a strong seal, effectively preventing fluid leakage within the pipeline. This reliable sealing is crucial in pipeline systems transporting flammable, explosive, toxic, or hazardous media, and is difficult to guarantee with threaded connections, which can loosen due to vibration and other factors, leading to leakage.

Excellent Structural Stability: Flange connections provide a large contact area and strong tightening force, capable of withstanding the pressure and impact of the fluid within the pipeline, as well as the weight of the pipe itself. In high-pressure, high-flow-rate pipeline systems, double-flange reducers ensure a stable connection, reducing damage to the pipeline caused by stress concentration. Compared to some flexible connection fittings, they offer significant structural stability advantages.

 

Wide Range of Applications

Wide pressure range: Double-flange reducers are suitable for applications ranging from low-pressure water supply and drainage systems to high-pressure petrochemical pipelines. Different pressure levels can be met by selecting flanges, bolts, and gaskets corresponding to these pressure ratings. Some plastic reducers, such as PVC reducers, are only suitable for low-pressure, room-temperature water supply and drainage applications.

Strong Media Adaptability: They can accommodate a variety of media, including water, steam, oil, and corrosive media. Double flange reducers are manufactured using the appropriate material (such as carbon steel, stainless steel, or alloy steel) based on the media's characteristics. In contrast, some specialized pipe fittings, such as ceramic-lined composite pipe fittings, while offering excellent corrosion and wear resistance, are limited in their application and come at a higher cost.

 

 

Product details

 

Specification	Details
Size Range	DN200
Pressure Rating	Available with PN10, PN16, PN25, and PN40 flanges
Standards	ISO2531, ISO4179, ISO8179, BS EN 545, BS EN598, BS4772, ISO7005-2, EN1092-2:1997, DIN2501, GBT13295
Flange Drilling	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 complying with ISO4179 - Bitumen painting (average min. 70 microns) - Fusion Bonded Epoxy Coating
External Coating	- Sprayed metallic zinc coating (min. 150g/m²) according to ISO8179 + bitumen painting (min. 70 microns) - Epoxy powder coating or painting - Customized as per requirements
Types	- Dismantling Joint - Universal Flange Adaptor - Universal Coupling - Ductile Iron Loose Flange Joint - DI Pipe Fitting - Saddle for PVC Pipe - Repair Clamp - Quick 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
Testing	In accordance with ISO 2531 / EN 545 / EN598 and 100% water pressure test