We offer to buy concentric welded steel transitions on favorable terms:
- Large selection of assortments and standard sizes.
- Possibility of additional metal processing - cutting, bending, galvanizing, perforation.
- Sale in pieces and blanks.
- Sales of products, both wholesale and retail.
- Prices without intermediary commissions.
- Various payment methods and terms.
- Flexible system of discounts for wholesale and regular partners.
- Free professional consultations.
- Possibility of pre-packaging the order in the warehouse.
- Fast delivery times. Shipment of paid goods within 24 hours in Moscow.
- Delivery to Russian regions in 2-3 days. If necessary, we will independently calculate and order the services of a transport company. Delivery to the transport company terminal is free.
- Packaging of goods in accordance with customer requirements. It is possible to use several types of packaging: PET polyester pipe and PVC polyethylene film.
- Possibility of storing goods in our warehouse until shipment.
- Return of goods in accordance with the legislation of the Russian Federation.
Characteristics and diameters of the assortment
Welded concentric reducers are connecting elements with the help of which a welded sealed connection is made in various types of main pipeline systems. The main task of the adapter is to connect two pipeline branches of different diameters. High-strength structural steel alloys are used in the production of products.
Concentric adapters are characterized by the coaxiality of the inlet and outlet openings, and are most often used on vertically located pipeline systems.
The product manufacturing process complies with current quality standards and control standards.
Adapters are used to connect the ends of pipelines of different diameters by welding the joint along the entire circumference. To ensure the tightness of the connection, the welds are checked with ultrasound.
The products have high strength and ductility, a long service life in various environments.
There are steel transitions with an external passage diameter of 15-300 mm, and an internal passage diameter of 10-250 mm.
The operating pressure of the system is from 250-400 bar, the ambient temperature during operation is from -25 to 200 degrees, thick-walled products up to +450 degrees.
The products have many positive qualities, which have led to their widespread use in various fields:
- increased strength;
- resistance to temperature fluctuations;
- shape retention and resistance to expansion;
- reliability and tightness of welded joints.
The surface of the products should not have any flaws or mechanical damage that could have a negative impact on performance characteristics and disrupt the operating pressure in the pipeline system.
Steel adapters for pipelines are characterized by a long service life, ease of installation, and are easy to weld. With anti-corrosion treatment, products are resistant to humid environments, have good strength and ductility, and a long service life.
The operating pressure of the system is up to 10 MPa, the operating temperature of the transported substance during operation is from -25 to 200 degrees.
GOST, TU and other standards
Technical conditions for the production of stainless steel transitions are determined by GOST 17378-01.
For each imported brand of European and American product standards, you can select a domestic brand according to GOST.
Structural steel transitions are manufactured in compliance with the following standards:
Areas of application
The performance characteristics of grease welded adapters allow their use in pipeline systems for various purposes. Products are in demand during construction:
- pipelines at industrial enterprises of various purposes and profiles;
- steam pipelines at nuclear power plants;
- main pipelines at thermal power plants;
- other technological pipeline systems;
- in the housing and communal services system and agriculture in communication pipelines.
Steel transitions are used when connecting pipelines for transporting steam in production shops.
Sale of welded steel concentric transitions from a warehouse in Moscow
Sale of welded transitions made of steel is carried out from a warehouse in Moscow, located at the address: 111123, Moscow, sh. Entuziastov, 56, building 44
You can receive the paid goods by pickup or by delivery, which will be carried out by our company. Our own fleet of vehicles of various tonnage will allow us to inexpensively and quickly deliver your order to your facility.
When ordering products from 100 kg. delivery will be free for you.
Shipment and delivery of paid goods is carried out within one day.
Transitions are used in all areas where other products of the pipeline range are also used. Concentric steel transition from carbon steels is found in public utility systems: in water supply and sewerage risers, steam supply, and in the transportation of other non-aggressive media. Concentric steel transitions St 20 are used everywhere, with the exception of aggressive and heavily polluted environments.
Concentric stainless steel transition is used where acidic and alkaline media are transported, in cold climates, for transporting contaminated and abrasive media. Concentric transition made of steel 12x18n10t is widely represented in the food industry and the production of pharmaceuticals. Concentric transitions are designed for temperatures up to 450 degrees and pressure Ru up to 16 MPa.
State standard
The concentric transition is made in accordance with GOST 17378-2001. According to this GOST, both types of steel concentric transition have a diameter of the wider end of up to 1000 mm, although other sizes are made to order. Transitions according to GOST 17378 2001 have a certain weight, which depends on the steel grade, wall thickness and design parameters.
Design and production
The concentric steel transition is a hollow, trimmed cone, the dimensions and weight of which are determined by the state standard. According to the connection method, the transition can be flanged or welded concentric. The welded concentric transition is distinguished by a lower price associated with a less complex design of the part.
There are several methods for making transitions, the main ones being:
- Stamping of cone-shaped blanks with subsequent machining;
- Stamping the halves and then welding them together;
- Rolling of metal sheets with final welding.
A concentric transition made using the first method is called seamless. Manufactured using the second and third technologies is called a welded steel concentric transition. The most widely used steel concentric seamless welded transitions are due to the fact that they have excellent performance qualities and their price is adequate for the tasks performed.
How to order and where to buy
The company website offers a varied selection and attractive prices for concentric transitions in the regions of Russia, Moscow and CIS countries. In stock at our warehouse there is a selection of various transitions and other parts of the pipeline range. Concentric transitions and other products can be purchased by selecting the ones you need in the price list and placing them in the cart. Our managers will contact you to complete the transaction.
