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<title><![CDATA[EC21 Product Catalogs - api hydraulic gate valve]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/api_hydraulic_gate_valve--2673/1/api hydraulic gate valve.html]]></link><item>
<title><![CDATA[API Oilfield Wellhead Annular Blowout Preventer/BOP]]></title><link><![CDATA[https://machinery14.en.ec21.com/API_Oilfield_Wellhead_Annular_Blowout--9182239_9182250.html]]></link><description><![CDATA[valve and accumulator, the annular BOP allows snubbing service. 
2) Working Principles 
A hydraulic control system is used to close or open the annular preventer. When it is closed, high pressure oil]]></description><pubDate><![CDATA[20140912]]></pubDate></item>

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