DURABLE,LONGLASTING, BEST QUALITY SCREW TYPE VALVE
Screw Valve utilizes a screw or an auger to turn fluid down a cylinder. The rotation of the screw creates a shearing force on the fluid which forces the fluid down the threads of the screw. … An screw valve is fixed and moves the fluid through the threads.
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SELLER: ESSA MARINE EQUIPMENT L.L.C
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