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Our company is largely devoted to the station of long-distance oil and gas pipeline, city gas transmission & distribution equipment, complete set for LNG Liquefaction and Filling, developing, designing, manufacturing and service of storage and transportation equipment in oil and gas field. And we are one-stop solution’s provider of the oil&gas storage and transportation equipment, complete set for LNG liquefaction and filling!
Petrobest has completed a number of national key projects providing design, consulting, project management and EPC contracting, automation system integration, installation and debugging over the past years, and we have accumulated rich experience in engineering design and construction management, at the same time won widespread reputation and praise from customers and users.
We have Provided key performances in key pipeline engineering both at home and abroad for past years,
The engineering Projects and service for transmission and distribution have been supplied all over China. The domestic main projects including: West to East Gas Pipeline I Project, West to East Gas Pipeline II Project, The Shanxi-Beijing pipeline, Young-Tang-Qin Pipeline, Ji-ning Contact Line, Gangqing Pipeline III, Tai-Qing-Wei Pipe Network, Lanzhengchang oil Pipeline, Jiangdu-Rudong Pipeline, Zhi-Baogang Pipeline, Guangxi Natural Gas engineering Project, CNOOC Coal Gas Pipeline Engineering, etc.
Our engineering Projects and service have been provided to many other countries. The foreign main projects including: Mozambique, Kazakhstan, Sudan, Chad key energy projects, etc. As well as the skid-mounted oil mass flow meter has been working in Kazakhstan, Sudan, etc.
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HOME >> PRODUCTS SERVICE >> Long-distance Oil-gas Pipeline Station Equipment >> Pressure Control System
Pressure control system consists of safety shut-off valve,monitor regulator and active regulator.These three devices are in series regulation mode from upstream to downstream respectively.The whole system will be integrated as a skid ready for installation.The overall test for each component and the whole system have been carried out before delivery. The system presented here has the characteristics of safety, reliability, good property, easy installation and simple operation.
Operating principle: under normal condition,safety shut-off valve and monitor regulator are in fully open position,and active regulator controls downstream pressure.If the active regulator fails on pressure control,monitor regulator starts to contol downstream pressure automatically,when the monitor regulator fails on pressure control, safety shut-off valve quickly and automatically close the trim to shut off gas flow to protect the whole system. System Characteristics
Using axial flow pressure regulator with large flow capacity and good closing performance Regulating accuracy of ±1%, wide adjustable ratio Equal percentage characteristic (logarithmic characteristic) Self-carried pilot,filter The active regulator with the characteristic of “fail to open” ,but the monitor regulator “fail to close” The shut-off reaction time is less than 1s Automatic shut-off, travel transmission, travel indicator (local and remote), pilot electric heater, flow limiting and pressure limiting and remote control can be provided Over flow shut-off and interlocked with prepayment IC card gas meter can be realized A variety of configuration types are available upon request ,such as “safety shut-off valve + monitor regulator + control valve”, “safety shut-off valve + control valve + active regulator control”, “safety shut-off valve + safety shut-off valve + active regulator control “and “safety shut-off valve + safety shut-off valve + control valve”. The flow and pressure restricting system can be matched to,( interaction with SCADA system is available), to realize distributing flow limit and imbalance gas supply control.
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BEST ENERGY EQUIPMENT CO.,LTD. Tel：+86 22 22193891/92/93
