Description
Stainless Steel Concentric/Eccentric Reducer
Stainless Steel Reducer is applied, to change from pipe diameter in one direction. Standard, there are 2 possibilities, the concentric reducer, which is usually used in vertical pipe lines, and the eccentric reducer which is used in horizontal pipelines.
TF & BF
On an isometric view, in a horizontal line, an eccentric reducer must be declared, or the flat side at the bottom or top must be assembled. Perhaps, you have ever seen on a drawing, the abbreviation “TF” or “BF”. This stands for respective “top flat” and “bottom flat”
For example:
- Bottom flat eccentric reducers are often used in pipe racks to keep the pipeline at the same elevation, after a pipe size change. When a concentric or a flat on-top eccentric reducer in a pipe rack will be used, the support detail, probably change.
- Top flat eccentric reducers are often used in pump suction lines to avoid the accumulation of gas pockets. Eccentric reducers can avoid small “dead spots” that exist behind concentric reducers.
Some draughtsmen also specify the size difference T between the centre lines. As an eccentric reducer in a vertical line is used, it may also be important, which side should be oriented to the north, south, east or west.
Length of reducers
The length of a Stainless Steel Reducer is very short in relation to the diameter, so in some dimensions, the transition from one to another diameter is very abruptly. For example, a reducer NPS 6 – NPS 2.1/2 has a length of 140 mm. On this short distance, a pipeline will be reduced from 168.3 mm O.D. to 73 mm O.D. During the design phase of a new pipe system, a piping designer certainly must think about it.
An alternative for a smoother flow would be to apply multiple reducers like.
- NPS 6 – NPS 5 (L=140 mm)
- NPS 5 – NPS 4 (L=127 mm)
- NPS 4 – NPS 3.1/2 (L=102 mm)
- NPS 3.1/2 – NPS 3 (L=102 mm)
- NPS 3 – NPS 2.1/2 (L=102 mm)
So, now the distance is approximately 573 mm if the NPS 6 pipe is reduced to NPS 2.1/2, and a smoother flow is guaranteed. In practice this example will probably never occur, I hope, I’m sure, there are better designers like me.
Products: SS concentric reducer/SS eccentric reducer
Type: Concentric /Eccentric
Technique: Forged, Hot formed.
Grades: 201 202 304 304L 316 316L 310s 317 317L 321
Standard: DIN 2527,2573,2576,2642,2633,JIS B2311,ASME 16.9
Outer Diameter: DN12-DN1200
Wall Thickness: SCH 5X-SCH XXS
Delivery:15 to 20 days according to your order quantity
Shipping: FCL, LCL, Bulk ship
Loading Port: Shanghai, Ningbo
Packing: Wooden case, fixed with steel strip, then wrapped with woven bags
Payment terms:30% T/T in advance,70% balance before delivery
Our advantage:
1. Annual production capacity:50,000 Metric Ton
2. With at least 80 tons of stock for general specification
3. Quote within 12 hours
4. 2 hours drive to the nearest seaport
5. Delivery maximum 10 days for stock
Shanxi Jiade Group Co., Ltd is one of the professional stainless steel reducer manufacturers and suppliers equipped with a productive factory, welcome to check the concentric reducer, 304 concentric reducers, 304 eccentric reducers, 316 eccentric reducer price list and import high-quality products from us.
