API 6A 7 1/16" Gate Valve for Oil Field
The plastic ups drive housing is what we call a floppy drive, and it's called floppy disk drive. It's a device that reads a 3.5-inch or 5.25-inch floppy disk. The most commonly used today is the 3.5-inch floppy drive, which can read and write 1.44MB of 3.5-inch floppy disk. The 5.25-inch floppy disk has been phased out and is rarely seen. Plastic Ups Drive Housing,High Power Metal Housing,Plastic Power Housing Part Timeplex Industrial Limited , https://www.timeplexhks.com
2)The sealing face of gate and seat is overlaid-welding with carbide alloy for erosion and corrosion resistance;
3)The imported lip-type composite gate and seat, stem seal provide reliable sealing, safety and minimize operational torque;
4)Back seal structure of the stem allows the replacement of the packing under the working pressure;
5)Valve structure include two kinds:rising stem ad non-rising stem, with visible sign for opening and closing the valve;
6)Gate structure:Integral or split;
7)The seat is classified into floating and fixed structure;
8)Driving model: Manual, Hydraulic and gear drive;
9)Connection type: flange, thread, and coupling.
10) Product technical specifications: PSL1~PSL4 Â Â PR1~PR2
11)Technical parameters:Â 
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1)Our valves are designed as per API6A,6D, NACE 175;
2)The sealing face of gate and seat is overlaid-welding with carbide alloy for erosion and corrosion resistance;
3)The imported lip-type composite gate and seat, stem seal provide reliable sealing, safety and minimize operational torque;
4)Back seal structure of the stem allows the replacement of the packing under the working pressure;
5)Valve structure include two kinds:rising stem ad non-rising stem, with visible sign for opening and closing the valve;
6)Gate structure:Integral or split;
7)The seat is classified into floating and fixed structure;
8)Driving model: Manual, Hydraulic and gear drive;
9)Connection type: flange, thread, and coupling.
10) Product technical specifications: PSL1~PSL4 Â Â PR1~PR2
11)Technical parameters:Â
Â
Floppy drive device built - in and external two. The built-in floppy drive USES the special FDD interface, while the external floppy drive is generally used for the laptop, using the USB interface.
With the development of computer, these disadvantages are gradually obvious: too small capacity, slow reading and writing speed, poor service life and reliability of floppy disk, and easy loss of data, so floppy drive has been replaced by other devices. New computers are no longer equipped with floppy drives, and personal computer users are no longer equipped with floppy drives.