After the stainless steel chemical centrifugal pump stops running, the inlet valve of the pump should be closed, and the valves of the auxiliary system should be closed in turn after the pump cools down. 02 The high temperature pump should be stopped according to the provisions of the technical...

Heating and cooling of electric motors 1. The heating process of the motor During the operation of the motor, due to the continuous generation of heat converted by the total loss, the temperature of the motor increases, and there is a temperature rise, and the motor will dissipate heat to the...

Precautions to be taken when installing the valve Abstract: When the valve is installed, in order to keep metal, sand and other foreign matter from invading the valve and damaging the sealing surface, it is necessary to set a filter and a flush valve; in order to keep the compressed air clean,...

Some clients ask for API 610 pump. API 610 is a set of standards written and regulated by the American Petroleum Institute to ensure reliable and safe operation of equipment in potentially hazardous industries or conditions. This standard focuses on the minimum requirements for safety,...

The insulation grade of the motor refers to the heat resistance grade of the insulating material used, which is divided into A, E, B, F, and H grades. The allowable temperature rise refers to the limit of the temperature of the motor compared with the ambient temperature. Temperature rise refers...

Influence of dry running of centrifugal pump In the operation of the centrifugal pump, the idling of the pump is not allowed, but in fact, the centrifugal pump will not cause damage in a short time of idling (within 1 minute). The reasons for the idling of the centrifugal pump are: the inlet...

The insulation grade of the motor of centrifugal pump refers to the heat resistance grade of the insulating material used, which is divided into A, E, B, F, and H grades. The allowable temperature rise refers to the limit that the temperature of the motor is increased compared with the ambient...

High temperature working conditions mainly include sub-high temperature, high temperature grade I, high temperature grade II, high temperature grade III, high temperature grade IV, and high temperature grade V, which will be introduced separately below. 1. Sub-high temperature Sub-high...

Bearing temperature standards for motors and pumps 1. Bearing temperature standard - pump bearing temperature standard 1. GB3215-82 4.4.1 During the working period of the pump, the maximum temperature of the bearing shall not exceed 80℃ 2. JB/T5294-91 3.2.9.2 The temperature rise of the bearing...