Direct Burial Corrugated Expansion Joint Mental As Customer Required For Hot Fluid Pipeline

General description

Directly buried type compensator bellows under external pressure at both ends and outer tube respectively, tube is linked together, can absorb large axial displacement, it is mainly used for directly buried steam pipeline of heat. But when used in large diameter pipe due to internal pressure force is too large, it is important to pay special attention to the strength of the fixed bracket, lest the fixed bracket collapse phenomenon during pressure test.

Directly buried outside pressure compensator of the matters needing attention

Directly buried type compensator is made of stainless steel bellows under external pressure outside a layer or multilayer wire or steel nets, both ends with joint or flange, transmission of all kinds of media used for the flexible components, its installation considerations:
1. To make the ZM burying and external pressure type compensator compensation effect, must set a fixed bracket on both ends of the compensator, prevent the pipeline from internal pressure thrust affected by offshoring.
2. ZM type buried outside one end of the pressure type compensator (one-way compensation directly buried type compensator dead end) is near the end of the fixed bracket, with live head compensation pipeline compensator.
3. According to the amount of compensation to set the distance of two fixed bracket, the compensation is generally not greater than the pipe diameter.
4. In the process of pressure testing ZM burying and external pressure typ

Directly buried outside pressure compensator structure and materials

1. The bellows: stainless steel 304, 316 l, 316, etc
2. The flange, takeover: carbon steel, stainless steel 304, 316 l, 321, etc
3. Pull rod bolt, nut: carbon steel

Jiangsu Qianyuan Feida Power Equipment Co., Ltd. (formerly Zhenjiang Feida Expansion Joint Manufacturing Co., Ltd.) is a designated joint enterprise of the former Ministry of Power, Machinery and Chemical Industry. At present, the company covers an area of 60,000 square meters and a building area of 40,000 square Meters, 120 employees, including 20 technical personnel, total assets of more than 25 million yuan. 

The company's main products:

1.Metal, non-metal and air-cooled island expansion joints, etc.
2. Air damper series, smoke duct shut down, adjusting baffle, isolation door, flapper door;

3. Constant force spring support hanger, variable spring support hanger;

4. Auxiliary equipment of power station: steel structure, oiling Device and lubricating oil storage tank, centrifugal oil purification device
Company), electric air heaters, gasifiers, plate heat exchangers and units, fully automatic constant-speed pulverized coal samplers; fast cooling devices for steam turbines, DC bolt electric heaters for steam turbines; multi-stage water seals, steam-water separators, agents APV plate heat exchanger; American Tysil Roots fan, complete set of ash storage equipment, anti-blocking device of raw coal bunker; steam turbine cosmetic plate and coal mill soundproof cover, cooling tower sound insulation screen, dustproof wall

The company is a "star enterprise" in Jiangsu Province, a "high-tech enterprise" in Jiangsu province, a "model enterprise for comprehensive management" in Jiangsu province, the first batch of 100 contract-honoring, trustworthy enterprises in Jiangsu Province, a thousand enterprises with the best economic benefits in Jiangsu, and a comprehensive ministerial Quality management unit, national measurement assurance confirmation unit, Zhenjiang city machinery industry advanced quality enterprise. The enterprise quality management system operates in strict accordance with ISO9001.