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北京朗潤達科貿有限公司是一家專業的儀器儀表供應商。作為世界*儀器儀表生產廠家—美國Dwyer、Alicat、InstruTech、Wasco、Anderson、AutoTran，英國Pyropress等在中國的代理經銷商，朗潤達公司提供近萬種有關差壓、壓力、真空、流量、風速、溫度、濕度、物位（液位）和閥門等產品, 它們廣泛應用于工業自動化、暖通空調、樓宇自控、電廠、石油、化工、水處理，鍋爐、壓縮機、冷凍制冷設備、食品、醫藥、輕工業、環保、潔凈工程等領域。
美國Dwyer公司已有75年的歷史，其微(差)壓產品在享有*盛譽并得到了廣泛的應用；美國Alicat公司在流量測量和控制領域有著數十年的豐富經驗，為您提供精確、可靠的質量流量解決方案；美國InstruTech公司專注于真空測量儀表的研發和制造；美國Wasco公司是專業的壓力開關、真空開關、壓力變送器制造商；美國Anderson公司專業制造用于醫藥、食品等領域的衛生型壓力、流量等儀表；英國Pyropress公司在控制和過程應用方面有近60年的歷史，其產品堅固、耐用，許多都有防爆選項, 大量用于核電站、電廠、石油、化工和國防等要求嚴格的領域。
朗潤達公司自1998年成立以來，以其優質的產品和良好的售后服務深受各界用戶的歡迎。在新的世紀，朗潤達公司愿與廣大合作伙伴及用戶攜手共進，再創佳績。
Dwyer 風管對接式風速測量裝置 STRA系列 產品信息
The Series STRA Airflow Measurement Station is easy to install -- simply connect the tubing to the station fittings, then to a differential pressure manometer, gage, transmitter or switch. Single or multiple airflow elements are factory mounted and pre-piped in a casing designed for flanged connection to the duct work. The Series STRA utilizes an airflow averaging element in a head-type device, generating a differential (velocity) pressure signal similar to the orifice, venturi, and other head producing primary elements. It has been developed with a honeycomb airflow straightening section for use in duct systems having highly turbulent conditions at the point of measurement. Strategically located sensing ports continually sample the total and static pressures when inserted normal to flow. Total pressures sensed by the upstream ports are continually averaged within the airflow element in an isolated chamber. The static sensing ports are averaged in a second isolation chamber. Multiple elements are joined together for connection to a differential measurement device (gage, transmitter, etc.) for flow measurement and indication purposes.
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