The pump should be prepared before starting work

Pump to do before the start of preparations are: First, check the water pump equipment intact, no one at work. Second, the bearings filled with oil, oil level is normal, qualified oil. Third, the inlet valve open, check the seal gushing situation, a little drip better. Fourth, the pump water, the pump housing to open the exhaust valve, the air row after the close. Fifth, for the negative pressure of the inlet pump, the inlet valve is fully open, will not seal along the gushing water; pump water, it can not release air from the exhaust valve to the atmosphere, and the need to start the vacuum pump out of the air. Six, for high temperature pumps, such as water pumps, but also before the start of warm pump. After warm pump must also start the auxiliary pump and open the recirculation pipe on the manual valve. Pump rated to reach the rated, check the pressure, current, and pay attention to whether there is vibration and noise. After everything is normal, open the exit door and supply water to the outside. Start time spins should not be too long to 2 to 3 minutes, otherwise the water temperature, resulting in vaporization and equipment damage.

Torsion Spring

Torsion Spring is a kind of Spring with complicated design principle in all kinds of Spring. The change of type is also very lively, so the theory involved in design is also the most complicated.

The coils are tightly or separately wound to allow for torsional loads (at right angles to the spring axis) . The end of the spring can be wound into a hook or a straight torsion arm.

Torsion Spring is the ultimate variant Spring, from single Torsion Spring to double Torsion Spring, and even all kinds of Torsion bar deformation, according to design molding. Therefore, it is difficult to master the necessary information of the torsion spring: (1) the free length. (2) control diameter: (a) outside diameter, (b) inside diameter, (c) inside diameter of the casing, or (d) outside diameter of the Rod through which it passes. (3) wire size [Wire diameter". (4) materials (type and grade). (5) number of turns: (A) total number of turns and (b) right or left. (6) Torque: The number of points deflected to an angle. (7) maximum deflection (the angle from which the free position is calculated) . (8) terminal form.

Rotational Spring,Helical Torsion Spring,Small Torsion Springs,Heavy Duty Torsion Springs

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