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<title><![CDATA[EC21 Product Catalogs - change valve]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/change-valve--1814/1/change valve.html]]></link><item>
<title><![CDATA[JinGao Petro F/UNBT/PZ/UNB/RGF/3NB Drilling Mud Pump Valve Assembly]]></title><link><![CDATA[https://123456jingao.en.ec21.com/JinGao-Petro-F-UNBT-PZ--12029265_12029273.html]]></link><description><![CDATA[JinGao Petro supplies not only frac valves and seats, but also mud pump valves and seats.All aftermarket valves and seats are 100% interchangeable with original designs. We have been manufacturing va]]></description><pubDate><![CDATA[20241203]]></pubDate></item>
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<title><![CDATA[High Efficiency QBY Series Double Air Operated Pneumatic Diaphragm Pump From China Supplier]]></title><link><![CDATA[https://shenghuipump.en.ec21.com/High-Efficiency-QBY-Series-Double--11992146_11992179.html]]></link><description><![CDATA[valves, the reciprocating motion of the diaphragm causes changes in the volume of the working chamber, forcing the two ball valves to open and close alternately, thus realizing the continuous suction]]></description><pubDate><![CDATA[20240826]]></pubDate></item>
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<title><![CDATA[Singel-stage Rotary Van Vacuum Pump]]></title><link><![CDATA[https://vacuumpumpsaisa.en.ec21.com/Singel-stage-Rotary-Van-Vacuum--11098936_11056484.html]]></link><description><![CDATA[Singel-stage rotary van vacuum pump
Rotary Vane Vacuum Pump
eco-friendly Vacuum Pump
Basic Principle 
The sucking and exhausting valves are usually fitted in the round pump body where there is a cent]]></description><pubDate><![CDATA[20240729]]></pubDate></item>
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<title><![CDATA[SOM Series Double Suction Pump]]></title><link><![CDATA[https://slspump.en.ec21.com/SOM-Series-Double-Suction-Pump--11948104_11948109.html]]></link><description><![CDATA[valve packing seal structure.There is a water seal groove on the pump
cover of the structural pump,and the high-pressure water at the outlet of the impeller reaches the packing ring through the water]]></description><pubDate><![CDATA[20240606]]></pubDate></item>
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<title><![CDATA[Buoy Submersible Pump]]></title><link><![CDATA[https://zlwaterpump.en.ec21.com/Buoy-Submersible-Pump--11104681_11104699.html]]></link><description><![CDATA[valve is provided at the upper of the pump to prevent the working parts from being damaged by the back flow in the water pipe when the electric pumps stops.There are drainage holes on the valve,the w]]></description><pubDate><![CDATA[20210302]]></pubDate></item>
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<title><![CDATA[Plastics Air-Operated Diaphragm Pump]]></title><link><![CDATA[https://dongkai1.en.ec21.com/Plastics-Air-Operated-Diaphragm-Pump--11601454_11851953.html]]></link><description><![CDATA[valves are arranged in each working chamber, and the reciprocating motion of the diaphragm causes a change in the inner volume of the working chamber, forcing the two one-way ball valves to be altern]]></description><pubDate><![CDATA[20231009]]></pubDate></item>

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