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sex on chair is an industrial globe valves manufacturer & supplier in China for more than 20 years. Like sex on chair gate valves, there are also four types of sex on chair globe valves based on Body Bonnet Connection---Screwed bonnet, Bolted-bonnet, Welded-Bonnet and Pressure-Seal Bonnet.  sex on chair globe valves are available in three types of body---Straight Through Type (or called Z Type), Y Type and Angle Type. sex on chair Globe Valves are used in the systems where flow control is required and leak tightness is also important.