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美國進口精密調(diào)壓閥減壓閥

330/340型儀表空氣過濾調(diào)壓閥

Type 300 Instrument Air Filter Regulator Series

700型精密高流量調(diào)壓閥

Type 700 High Flow Pressure Regulator

700BP型精密背壓調(diào)壓閥

Type 700BP Precision Back Pressure Regulator

背壓調(diào)節(jié)閥閥前端壓力達到設(shè)定壓力后，背壓閥打開，使背壓閥前端的壓力保持在恒定的設(shè)定壓力，且不受背壓閥出口壓力的影響。

美國進口精密調(diào)壓閥減壓閥

產(chǎn)品說明

The Type-700BP Back Pressure Regulator is a high flow, highly accurate pneumatic relief valve with an adjustable set point. It'sprimary function is to provide protection against over pressurization in the downstream portion of a pneumatic system. This precision unit is capable of handling flows up to 50 SCFM. A rolling diaphragm provides the sensitivity that causes the Type-700BP to vent to atmosphere in response to the slightest upstream changes. FEATURES • SENSITIVITY - Provides quick response to controlled system pressure variation. • HIGH FLOW CAPACITY - Flows up to 50 SCFM (depending on set point pressure and port size). • COMPENSATING FLOW CONTROL - Venturi type velocitypressure tube adjusts main control valve opening in accordance with velocity pressure variations of flow from controlled system. • ON-LINE MAINTENANCE - Unit can be disassembled and serviced without removing from the air line. APPLICATIONS The Type-700BP is used in place of a standard relief valve to provide protection against excessive build-up in supply pressure lines to instruments and other sensitive control devices. The most common application is to control the air pressure in a system supplied by a compressor. Used in conjunction with a diaphragm operated inlet restricting valve and a bleed orifice, the Back Pressure regulator relieves excess compressor pressure while activating the intake restricting valve. When the regulator shuts off, the down-stream air vents through the bleed orifice allowing the restricting valve to open.  

美國進口精密調(diào)壓閥減壓閥

700BP系列產(chǎn)品簡介：
精密背壓式調(diào)壓閥700BP是一種高流量、高精度氣動安全閥，設(shè)定點可調(diào)。它的基本功能是對氣動系統(tǒng)的下游壓力進行過壓保護,該減壓閥流量處理能力高達50SCFM。上游微小的壓力變化滾動隔膜的靈敏度會引起該減壓閥向大氣中排放。
產(chǎn)品特點：
文氏對控制系統(tǒng)壓力變化反應(yīng)迅速
大流量：流量高達50 SCFM (依設(shè)定點壓力和接口尺寸而定)
流量補償控制：文氏流速壓力管根據(jù)控制系統(tǒng)流量流速壓力變化調(diào)節(jié)主控閥開啟進行流量補償
在線維護：不用拆卸供氣管線就可方便維護
應(yīng)用：
適用于供壓管線到儀表和其它靈敏控制儀中的過壓保護。zui普通的應(yīng)用是空壓機供壓系統(tǒng)中的介質(zhì)壓力控制。用隔膜式入口節(jié)流閥和排氣孔，背壓減壓閥釋放過多的空壓機壓力，同時關(guān)閉入口節(jié)流閥。當(dāng)背壓減壓閥關(guān)閉時，下游介質(zhì)通過排放孔釋放并開啟該節(jié)流閥。
技術(shù)參數(shù)