Characteristics of pressure gauges used on four-column hydraulic presses

Four-column hydraulic press because of the different use of the environment, the above components must do a good job of protection. Because of the pressure effect in the use of the four-column hydraulic press, the vibration is relatively large, so the selected pressure gauges are shock-resistant. And in different seasons to resist freezing, high temperature. So what are the characteristics of the pressure gauge usually used on our four-column hydraulic press

1, the impact of freezing and vibration: the pressure gauge is installed outside the boiler and is greatly affected by external conditions. If the outside temperature is too low, freezing, or from the boiler body and pressure gauge inside the various vibrations, will affect the sensitivity and accuracy of the pressure gauge pointer. Prevention methods: first, to install insulation devices; The second is to install a buffer device, such as a three-way cock is a shock-proof device.

2, the influence of temperature: pressure gauge pressure is the effect of pressure to make the spring bend tube deformation. If the temperature of the medium entering the spring bend is high, the effect of temperature will also cause the bend to deform. Moreover, the high temperature medium acts on the spring bend for a long time, and will cause permanent deformation of the bend. All of this can have an adverse effect on measurement. The prevention method is that between the pressure gauge and the cylinder, there are different forms of water trap pipes to store condensate and prevent steam from directly entering the spring trap pipe.

3, the impact of overload: pressure gauge spring bend, spring and other elastic parts, such as often in the limit or close to the limit state. Working for a long time can lead to weakening or loss of elasticity, or even permanent deformation. If the pressure gauge pointer is often near or greater than 2/3 of the full scale of the dial, it is unfavorable to the long-term work of the pressure gauge. The way to prevent this is to first choose the pressure gauge, the range should be selected reasonably, with the working pressure at 1/2 of the range as the best. Secondly, the boiler should be strictly prevented from overpressure operation.

Four-column hydraulic press must be used in accordance with the operating procedures to prevent damage to the pressure gauge overload. If your pressure gauge appears abnormal phenomenon, be sure to contact us in time. We will have professional technicians to analyze for you.