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威尼斯人app is mainly committed to the development, design, manufacturing, installation, and service of long-distance natural gas pipeline station equipment, urban gas transmission and distribution equipment, gas field and storage ground equipment. It is a natural gas industry solution provider with core technology.
The company is a national advanced collective in the machinery industry, a national champion in single product manufacturing, a national demonstration enterprise in service-oriented manufacturing, a national specialized and new small giant enterprise, a national high-tech enterprise, a leading enterprise in strategic emerging industries in Tianjin, a Tianjin oil and gas storage and transportation process control equipment technology engineering center, and a Tianjin certified enterprise technology center.
威尼斯人app首页 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 >> 威尼斯人app最新 SERVICE >> 威尼斯人app最新 Valve >> SSV-A400Safety Shut-off Valve
Features※Low pressure drop due to in-line flow design ※Replace internal parts without dismantling the valve from the line ※Equipped with pressure compensating valve ※Emergency manual release local position indicator standard ※Electric release and electric remote indication of valve position available ※High response accuracy and short response time ※Max. flow rate should not exceed 80 m/sec, noise <80dB ※TUV SIL3 certificate according to SIL-norm IEC 61508 IEC 61511 Technical Data
Operating principleSafety shut-off valve is controlled by pilot . Overpressure or underpressure release feature is when monitored downstream operating pressure exceeds set-point range, the pressure signal fed back to the pilot (pilot valve), the pilot piston moving up or moving down, so that the trolley trip, hammer down the impact of the firing pin and firing pin moves down makes disengage the hook and flap, flap valve is closed down, thereby cutting off gas to the downstream pipeline, protect downstream equipment and pipeline safety.
Valve Design
Command Design
Dimensions SSV - A400 DN25 – DN150
SSV - A400 DN250 - DN400
The sampling point pressure piping connecting dimensions
Pressure sampling point mounting positionAs shown in Figure 1 and 2, the safety shut-off valve (SSV) pressure sampling point is 5-8xDN from the working valve (PCV or PV) .
Product order type selectionShut-off valve selection  Pilot selection
Other special feature 
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