COVNA Butterfly Valve HK60D-SB-DN50 4-20mA
Type: Butterfly Valve
Brand: COVNA
Wafer Butterfly Valve
AC 220V
Modulating Type
DN 50
Type: Butterfly Valve
Brand: COVNA
Type: Butterfly Valve
Brand: COVNA
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07/31/2020
Before the cold storage screw compressor must be overhauled, if possible, unload the slide valve to the "0" position, shut down normally, and cut off the power supply.
06/30/2020
How to deal with the faulty host refrigerant system of the compressor How to deal with a main engine refrigerant system where the compressor has burnt out or failed is a more serious and technically demanding problem than the production of a new main engine. However, it is often neglected by most of the technicians, and even the wrong concept is replaced if they think that it is broken anyway! It causes some disputes that the compressor quality is poor or others use it improperly.
08/16/2020
Water-cooled chillers are especially suitable for places with abundant water resources. The operation is more stable. It has the characteristics of large single-unit cooling capacity and high cooling efficiency.
06/23/2020
At present, the central air-conditioning of the refrigerant system is still the best done by Japanese brands. When it comes to Japanese central air-conditioning, one has to say that Hitachi, one of the Japanese air-conditioning BOSS, is a well-known international central air-conditioning brand. Most air conditioners now use scroll compressors as the core of power, and the world’s first scroll machine for air conditioning was manufactured by Hitachi in 1983.
07/18/2020
Piston refrigeration compressor liquid hammer process and reasons for liquid hammer 1. Introduction The phenomenon that liquid refrigerant and/or lubricating oil is sucked into the compressor cylinder with the gas and damaged the suction valve plate
06/18/2020
The air-conditioning fan is a new type, energy-saving, high efficiency, variable speed, low noise centrifugal fan. This type of fan has a compact structure, easy installation, small volume, large air volume, high pressure and low vibration. It is equipped with three-phase voltage regulation The device or frequency converter can implement stepless speed regulation. It is especially suitable for ventilating and ventilating places with strict noise requirements and large air volume changes. It is an ideal supporting product for air conditioning and purification industries.<img src="{{media url="wysiwyg/Application_rate_of_air_conditioning_fans_and_how_to_clean_and_maintain.jpg"}}" alt="" />
12/27/2023
When your air conditioner's fan refuses to spin but emits a distinctive hum, it can be a frustrating and perplexing situation.
02/05/2024
In the realm of modern kitchen appliances, the fan oven stands as a testament to innovation and efficiency. As culinary technology continues to advance, the fan oven has become a staple in many households, revolutionizing the way we bake, roast, and prepare our favorite dishes.
09/15/2020
I. Introduction Compressor is a machine used to increase gas pressure and transport gas, and belongs to a working machine that converts the power energy of the prime mover into gas pressure energy. It has a wide range of types and uses, and is known as "general machinery".
06/14/2020
Detailed explanation of screw compressor structure and working principle Screw compressors, also known as screw compressors, include screw air compressors and screw process compressors (vinyl chloride compressors, etc.).