This cotton buffs drill buffing head is made of 100% high quality pure soft cotton cloth, these buffing wheels are perfect for fine polishing of various jewelries made of brass, silver, gold or plastic, especially for high luster mirror buffing.
1.Specially designed for polishing recessed aread such as mag wheels, motorcycle wheels manifolds.
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2.Use with any drill.
3.Shine your faded wheels, manifolds etc. With this Great PROFESSIONAL GRADE KIT!
4.Brings your faded items back to like new condition. The variable speed drill prevents the pad from rotating too fast and spraying off the polishing compound.
Advantages and Disadvantages of Pneumatic Gate Valve Mixing Water Cooling Device
Pneumatic valve cooling water mixing device uses self-temperature remote temperature control valve temperature sensing element to detect mixed water temperature, and according to changes in water temperature control inlet installed in the high-temperature water inlet valve opening, thereby changing the high temperature water, to automatically The purpose of temperature control. You can also control the return water to achieve the purpose of indirect control of water. Such products are simple in structure and low in cost. Even in the event of power failure, the temperature control part can still play a protective role. Pneumatic valve with electric heating actuator mixed water cooling device using electric remote temperature control valve temperature sensing element to detect the indoor temperature, and according to changes in water temperature control installed in the high temperature water inlet valve body opening. During the power outage, the temperature control part of this device can not afford to be protected. The same as the first way, suitable for smaller heating area and heating water temperature is higher. Electric two-way ball valve water cooling device inlet channel through the flow area of ​​the electric ball valve, when the heating temperature is lower than the set temperature, the circulating pump will stop working, the use of central heating its own pressure can be directly heated. The use of two-way control valve, when a sudden power outage at work, the ball valve will remain open at that time, but high-temperature water will smoothly enter the floor heating pipe, to warm the negative security. More suitable for heating large area users. Pneumatic valve cooling water mixing device has the advantages of: 1, with the thermostat set temperature, set the temperature range; 2, the controller easy to set the opening and closing time, easy to programmable control, to increase the other kinds of intelligence Control functions; 3, electric drive work *, electric three-way valve is not easy to plug, good adaptability to water quality. The disadvantages of the mixed water cooling device of the pneumatic gate valve are as follows: 1, the reaction of the electric actuator is slow, one action cycle may take several minutes, and the temperature of the mixed water will fluctuate when the temperature of the inlet water changes greatly; 2, Spring force reset, in order to avoid the pressure is high when the valve can not open the pressure valve back in the three-way valve backwater mixing channel left about 3 mm diameter effusion outlet, water temperature is low, even if the three-way valve back to the water channel All closed, there is still some low-temperature backwater into the upper mixed water, reducing the temperature of the mixed water, so the water temperature is low, the water temperature can not make full use of low temperature water supply is not very good. 3, electric three-way valve automatically reset when power outage, pneumatic gate valve to close the heating water, which will affect the heating.