Dwyer Flowmeter RMVII-22

05/23/2025

How to select the thermal expansion valve？

1. The role and classification of expansion valves<br></br> Expansion valve is an important part of refrigeration system, generally installed between liquid storage cylinder and evaporator. The expansion valve causes the medium temperature and high pressure liquid refrigerant to become low temperature and low pressure wet vapor through its throttling, and then the refrigerant absorbs heat in the evaporator to achieve the cooling effect.

08/13/2022

Advantages, disadvantages and applications of linear motors

Before the advent of practical and affordable <strong>linear motor</strong>, all linear motion had to be converted from rotating machinery through the use of ball or roller screws

05/06/2023

How Water Source Heat Pumps Work

A heat pump is a device that transfers thermal energy from a low-grade heat source to a high-grade heat source. Heat pumps, driven by electricity, usually first obtain low-grade heat energy from natural air, water or soil, and then provide high-grade heat energy.

03/14/2021

Function of servo drive

Regeneration and dynamic braking function; Instant power down protection function for quick shutdown;

06/14/2020

Disassembly and failure analysis of scroll compressor

The scroll compressor is a positive displacement compression compressor, and the compression component is composed of a movable scroll and a static scroll. This includes many structural features that divert the flow of gas through the compressor housing t器2䀀
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06/29/2020

How the compressor works

08/20/2020

Precautions for the selection of fan coils for large central air conditioners

The fan coil unit is an important component in a large central air-conditioning system. Its selection will directly affect our usage, such as cooling effect, power consumption, noise impact, etc.

08/06/2020

Do you know the protection devices of these air-cooled chiller refrigeration compressors

1. Internal thermostat (installed inside the compressor)<br></br> In order to prevent the air-cooled chiller from running uninterruptedly for 24 hours, causing the compressor to operate under high load, the electromagnetic switch is not good,

08/04/2020

Application of energy meter in air conditioning measurement<br></br>

Central air-conditioning household metering technology is more and more commonly used in public buildings with centralized cooling.

08/07/2020

What factors need to be considered when transforming a warehouse into a cold storage

In the cold storage renovation, many businesses transform the original warehouse into a cold storage, and the warehouse and the cold storage are in different structures.