Gear pump A rotary pump that delivers or pressurizes liquids by varying and moving the working volume created by the pump cylinder and meshing gear. Outer meshing double gear pump structure. A pair of intermeshing gears and pump cylinders separate the suction chamber from the discharge chamber. When the gear rotates, the volume of the tooth between the tooth on the suction side and the tooth on the tooth side gradually increases and the pressure decreases, and the liquid enters the space between the teeth under the pressure difference. As the gear rotates, liquid between the teeth is brought to the discharge chamber. At this time, the volume between the teeth on the discharge side of the tooth on the side of the cavity is gradually reduced, and the liquid is discharged. Gear pump is suitable for conveying non-solid particles, non-corrosive, large viscosity range of lubricating liquid. Pump flow to 300 m 3 / hour, the pressure up to 3 × 107 Pa. It is commonly used as a hydraulic pump and delivery of various types of oil. Gear pump structure is simple and compact, easy to manufacture, easy maintenance, self-priming capacity, but the flow, pressure pulsation and noise. The gear pump must be fitted with a safety valve to prevent damage to the pump or prime mover if the outlet pressure of the pump exceeds the allowable pressure for some reason, such as blockage of the discharge pipe.
Reflective clothing indicates those clothes with reflective function,we can see it mostly in workplaces.
According to the shape,it can be devided in to safety reflective vest,reflective jacket,reflective T-shirt,etc.
And sometimes they are matched with different kind of reflective materials,like reflective tape,reflective strip,reflective cube,etc.
Nowadays,another kind of reflective vest is getting popular which is running vest,it's made specially for the runners,especially those who run at night.
Roadway Reflective Clothing,Running Reflective Clothing,Fluorescent Warning Clothing,Polyester Reflective Clothing
WINNERLIFTING SAFETY EQUIPMENT CO.,LTD. , https://www.winnerlifting.com