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EghtesadOnline: Gas pressure regulating and metering stations have been indigenized by Iranian engineers at Azar Pajouhan Andish Company, a knowledge-based firm in Tehran, the managing director said.

“Reducing and controlling gas pressure is the main function of a pressure regulating station, which is performed by control valves, known as regulators. The measurement of the gas flow rate is also of great importance and is done by different types of turbines or ultrasonic meter equipment,” IRNA quoted Hamid Rostami as saying.

Gas pressure passing through large pipes must be reduced prior to moving into smaller pipelines and distribution systems. Regulator stations are placed along the pipeline to reduce pressure to the appropriate level for each system.

Metering and regulating stations track the volume of natural gas during transportation. M&R stations use assorted meters and equipment to continuously measure the flow and, if needed, adjust pressure as it moves through the station.

A pressure regulating station is more than just a reducing valve fed off a steam main. A properly designed and installed pressure regulating station takes into consideration velocity, good piping practices, and safety.

“Our products include gas scrubber, filter separator, dry gas filters, bypass odorizers, heat exchangers, defect finders and gas compressors,” Rostami noted.

Explaining one of the key products of the company, he said: “Natural gas is colorless and odorless and lacks recognizable characteristics in the environment. If the gas is intended for urban or industrial use, it can be odorized by combining a highly odorous compound (usually mercaptan) so that in case of gas leakage, certain physical symptoms prevent explosions or other disasters. This is done by bypass odorizers”.

This tech firm is also the only knowledge-based company in the country in the field of design, construction and operation of a set of stations for reducing, measuring and controlling gas pressure in the form of EPC up to a capacity of 3 million cubic meters per hour.

Established in 1999, the company is involved in the design, supply and construction of gas supply networks and fuel systems of residential and industrial complexes.

It also provides service in other countries in the region, namely an EPC project at the gas pressure regulating station at the Rumaila Power Plant in Basra, Iraq.

 

Self-Reliance

Iran’s huge gas transmission network now has some of the most locally-made advanced measuring instruments and equipment.

The expanding gas network stretching over 37,500 kilometers is equipped with 317 turbo compressors at 86 pressure boosting stations and transfers 800 million cubic meters of gas per day.

Last year Iranian experts achieved the know-how for producing vibration monitoring and protection systems for gas transmission lines.

The vibration monitoring and protection systems monitor critical asset parameters such as vibration, temperature, speed, and numerous other condition indicators in gas facilities to anticipate and prevent mechanical failures.

After re-imposition of US sanctions in mid-2018, the Iranian National Gas Company and its subsidiaries have placed indigenization of knowhow for producing parts and equipment on their agenda.

After the United States under Donald Trump announced the fresh economic restriction ions, most foreign companies and manufacturers of industrial equipment collaborating with Iran cut ties fearing the wrath of the controversial and openly hostile US president and his anti-Iran administration.

Focusing on domestic production of machinery, equipment and parts for key industries has rightly become a top priory for the Tehran government.

 

gas regulating Azar Pajouhan Andish Company