KCB gear pump, rotary pump that relies on the change of displacement and movement of the working volume formed between the pump cylinder and the meshing gear to transfer liquid or pressurize the liquid. 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 motor due to jamming of the discharge tube for some reason causing the pump outlet pressure to exceed the allowable value. (A), working principle: Gear pump is a kind of positive displacement pump, which consists of two gears, the pump body and the front and back covers to form two enclosed spaces. When the gear rotates, the volume of the space on the side of gear disengagement becomes larger, Vacuum, the liquid inhalation, the gear meshing space on the side of the volume from small to large, and the liquid into the pipeline go. The suction chamber and the discharge chamber are separated by the meshing line of two gears. The pressure at the outlet of the gear pump depends entirely on the resistance of the pump. (B), operation and maintenance 1, start: (1) check before starting all flanges, joints of the tightness. (2) Disc drive coupling, no friction and collision sound. (3) The first start should be injected into the pump liquid. (4) should be fully open before inhalation and discharge of the valve in the pipeline, closed valve is strictly prohibited to start. (5) After verifying the direction of motor rotation, start the motor. 2, parking: (1) turn off the motor. (2) Close the pump inlet and outlet valves.
I. Description
Joint Rehabilitation Tape is Cold applied tape coating system for anti corrosion of field joints,fittings, and specifically piping. The adhesive is a key in ground performance characteristic coupled with the low and high density polyethylene backing.
The Joint Wrap Tape shall be applied by hand or with a wrapping machine.
II. Structure
The specification of the tape consists of two layers, adhesive layer and film backing
Adhesive: butyl rubber
Outer layer: Special blend of stabilized polyethylene
III .Features:
Heavy duty adhesive
Resistant to UV
Can be applied over a wide temperature range
Good conformability and consistent uniform thickness
Easily applied with no special equipment
Conformable to irregular shapes.
Meets ASTM D 1000 Standard
Cold applied
â…£ .Technical datas:
Joint Rehabilitation Tape
Joint Rehabilitation Tape, Pipe Joint Tape, Pipeline Joint Rehabilitation Tape, PVC Pipe Wrap Tape
Jining Xunda Pipe Coating Materials Co.,Ltd , http://www.pipe-wrap.com