Cikoton Heat Pump

29/05/2026

An externally equalized thermostatic expansion valve builds upon the internally equalized design by adding an external equalizing line. The lower end of this line is connected to the ev***rator outlet piping, while the upper end is routed to the lower chamber of the diaphragm, allowing the diaphragm to sense the actual ev***rator outlet pressure directly. By introducing the true outlet pressure into the three‑force balance, the valve effectively eliminates the influence of ev***rator pressure drop on control accuracy, ensuring that the regulated superheat precisely corresponds to the actual saturation temperature at the ev***rator outlet.

This structure is widely used in medium‑ and large‑scale ev***rator systems with long piping, significant flow resistance, or distributors—such as multi‑split systems, modular heat pumps, and industrial heat‑pump units. Even under substantial pressure‑drop conditions, the externally equalized design maintains accurate outlet superheat control, ensuring stable and efficient system operation.

29/05/2026

Surviving India’s 270 GW Power Strain? Lock in Your Production Certainty!

Our batch of high‑temperature heat pump water heaters for export to India has completed its final testing, fully packed and ready to depart.
In May 2026, many regions across India were hit by historic heatwaves, with ground temperatures exceeding 50°C, and national power demand surging to a record‑breaking 270 GW in late May.
Under such extreme conditions, hotels, factories, dormitories, swimming facilities, and hospitals have a more urgent need than ever for stable, controllable, and energy‑efficient hot water systems.
These units will take on a very real and very critical mission: to continue providing customers with stable, constant, and predictable hot water even in extreme heat and under severe pressure on the power grid.

28/05/2026

The liquid receiver regulates and stores excess high‑pressure liquid refrigerant to balance the heat pump’s dynamic charge requirements under varying operating conditions or mode transitions (such as heating–defrost switching), thereby ensuring a stable and adequate refrigerant supply within the system. At the same time, by maintaining a reliable liquid seal at the outlet, it prevents high‑pressure v***r from entering the throttling device, stabilizes the high‑pressure side pressure, safeguards throttling accuracy, and preserves the required refrigerant subcooling.

28/05/2026

An internally equalized thermostatic expansion valve samples the ev***rating pressure directly inside the valve body, at the point immediately downstream of the throttling element. This pressure is transmitted to the underside of the diaphragm, where it forms a three‑force balance together with the sensing‑bulb pressure acting on the upper side of the diaphragm and the spring force acting from below.

Because this design does not account for the pressure drop caused by refrigerant flow through the ev***rator tubing, it is suitable only for ev***rator systems with short piping and minimal flow resistance—where the pressure‑drop‑induced saturation‑temperature decrease is typically less than 1 °C, such as in small refrigerators and window air conditioners.

If applied to systems with significant flow resistance, the pressure beneath the diaphragm will be higher than the actual ev***rator outlet pressure, resulting in an excessively high operating superheat. This reduces the effective heat‑exchange area of the ev***rator and prevents full utilization of its capacity.

28/05/2026

The essential difference is this: electric heating consumes energy, while heat pumps dispatch it. A heat pump does not use electricity to generate heat, but to move it. Because electricity is used solely for transfer rather than production, every kilowatt‑hour of electrical input enables the system to extract several kilowatt‑hours of usable heat from the environment. This “work‑compensation” mechanism allows heat pumps to achieve efficiencies far above 100% (COP > 1), surpassing the 1:1 limit of direct electric heating and marking a fundamental shift in the physics of energy utilization.

27/05/2026

The thermal expansion valve (TXV) utilizes the v***r pressure variation of the working fluid inside the sensing bulb—caused by changes in the superheat at the ev***rator outlet—which is transmitted through the capillary tube to the upper side of the diaphragm. Together with the spring force and the external equalizing pressure acting on the lower side of the diaphragm, these three forces form a
dynamic balance. Under this force‑balance mechanism,the valve needle automatically adjusts its opening,thereby regulating the refrigerant flow through the valve and maintaining proper superheat for stable ev***rator operation.

27/05/2026

The Hidden Failure Point Inside Every Machine

26/05/2026

According to the location of the pressure‑sampling point beneath the diaphragm—namely, where the ev***rating pressure is introduced—the thermostatic expansion valve can be classified into two main types:
1.Internally equalized thermostatic expansion valve
2.Externally equalized thermostatic expansion valve

26/05/2026

The thermal expansion valve (TXV) regulates refrigerant flow by sensing changes in the superheat of the v***r refrigerant at the ev***rator outlet. Through the force‑balance relationship among the sensing bulb pressure, capillary tube transmission,and diaphragm mechanism, the valve automatically adjusts its opening, thereby controlling the amount of refrigerant entering the ev***rator and maintaining proper superheat for stable system operation.

26/05/2026

The importance of the components

26/05/2026