304SS 316L Stainless Steel Power Plant Expansion Joints DN25‑DN1200 Flange Lined

Product Specification

DINKONDA GLOBAL Power Plants Special 304/316L Stainless Steel DN25‑DN1200 Flange Lined PTFE Metal Corrugated Anti-corrosion Compensator Metal Expansion Joint

Product Overview
The stainless steel flange is lined with PTFE metal bellows compensator, and both the flange and the external bellows are made of stainless steel material. The internal lining is made of PTFE, which belongs to the all stainless steel external anti-corrosion compensation element. Developed for working conditions where there are both corrosive media and external environmental risks of corrosion, stainless steel exterior components rely on PTFE lining to isolate media corrosion. They have excellent resistance to corrosion in outdoor and humid chemical environments, and are used to absorb thermal expansion and contraction of process pipelines, equipment displacement, installation deviations, reduce pipeline stress, protect pumps, valves, reaction vessels and other equipment. They are widely used in corrosive process pipelines in chemical, pharmaceutical, fine chemical and other industries.

Structural Composition
1. Polytetrafluoroethylene (PTFE) lining: The medium flow layer is fully lined inside the corrugated pipe, and the ripples deform synchronously with the metal corrugated pipe. It is resistant to various corrosive media such as strong acids and alkalis, and the inner wall is smooth and not easy to hang materials and scale.

2. Stainless steel corrugated pipe body: The elastic pressure bearing body is made of 304/316L stainless steel plate, which can withstand pipeline pressure and achieve axial and small lateral angular displacement compensation.

3. Stainless steel flange: The overall stainless steel flange has no risk of carbon steel corrosion. The flange sealing surface is equipped with a PTFE sealing structure to prevent medium leakage. The flange bolt holes comply with the national standard flange size.

4. Stainless steel limit pull rod component: The pull rod, nut, and ear seat are all made of stainless steel material, which limits the maximum expansion and contraction stroke of the compensator, offsets the pressure thrust of the pipeline, and prevents damage to the corrugated pipe due to overtravel.

Core Features
1. Internal and external dual anti-corrosion: The internal PTFE lining is resistant to medium corrosion, and the external all stainless steel structure is suitable for humid, salt spray, and corrosive environments outside chemical plants. Flanges and pull rods are not easy to rust.

2. Clean circulation inner wall: PTFE lining has low friction coefficient, is not easy to crystallize or hang materials, and meets the requirements of pharmaceutical and fine chemical industries for medium cleanliness.

3. Stable pressure performance: The stainless steel corrugated body has high mechanical strength, fatigue resistance, and long service life under cyclic expansion and contraction conditions.

4. Stainless steel limit protection mechanism: A complete set of stainless steel pull rod components can effectively limit the maximum compensation amount, prevent system abnormalities from causing tensile damage to corrugated pipes, and improve pipeline operation safety.

5. Strong universality of flanges: National standard stainless steel flange connection can directly connect to stainless steel process pipelines, making it convenient for on-site installation and replacement.

6. Wide temperature adaptability range, stable operation in the range of -20 ℃~200 ℃, suitable for the majority of corrosive process pipeline conditions.

FAQ:
Q1.What about the lead time?
A: 5-7 days for Sample preparing ,15-20 working days for mass production.

Q2. Is it OK to print my logo on led light product?
A: Yes. Please inform us formally before our production.

Q3: Do you offer guarantee for the products?
A: Yes, we offer 1 years warranty to our products.

Q4: How to deal with the faulty?
A: Firstly, Our products are produced in strict quality control system and the defective rate will be less than 0.2%.

Secondly, during the guarantee period, we will send new lights with new order for small quantity. For defective batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation.

Company Profile

DINKONDA GLOBAL has been developing and supplying equipment and components for specialized thermal power plants and related industries for 20 years and is one of the a market-leading global manufacturers and providers in the industry. We have a professional technical research and development team, professional management talents and dozens of quality inspection personnel. The company has more than 50 CNC machining centers, CNC lathes, various inspection equipment and other professional equipments.
Our comprehensive product portfolio and over 20 years of industry knowledge mean customers can rely on us to deliver innovative, reliable and economic products. Chenglei products are designed and manufactured with quality components and clear user interfaces for quick and safe operation in the field. Our strict product development and testing ensures long-lasting performance and continued reliability. Our independently developed and produced CL series valve electric actuators are widely used in various industries such as Oil & Gas, Water & Power, and Chemical, Process & Industrial .
Customers rely on us for innovative, high quality and dependable products for managing the flow of liquids, gases and powders. We help customers around the world to reduce emissions, improve efficiency, minimize their environmental impact and assure safety.