Your Right Refrigeration and Air conditioner Sight Glass Supplier
Miracle refrigerant sight glass passed CE and UL certification and can be used in refrigeration, air conditioning, and HVAC systems.
It meets the working pressure and temperature requirements for rail air conditioning, bus air conditioning, and transport refrigeration.
Miracle refrigerant sight glass is suitable for HCFC and HFC refrigerants and can meet the requirements for threaded (SAE) and welded (ODF) connections and supports customized extension tubes.
In addition, Miracle also offers a one-piece filter drier with sight glass. For more details, please get in touch with us now.
Refrigeration Sight Glass
Welding refrigeration sight glass is one of the more common types because it is so versatile. Miracle welding refrigeration sight glass can be customized with extension tube length on request. For more information, please get in touch with us now.
Threaded refrigeration sight glass has the advantage of easy connection and flexible installation. It can be used for refrigeration and air conditioning equipment. It can also be used for transport refrigeration, bus air conditioning, rail air conditioning, etc. For more details, please contact us now.
Male/Female refrigerant sight glass is a threaded version, as shown in the picture, Miracle Male/Female refrigerant sight glass is designed with a female threaded connection on one end and a male threaded construction on the other end. It can be used directly mounted on the filter. Send your request now
HVAC Sight Glass (3)
Brass Sight Glass (2)
Refrigerant Sight Glass and Filter Drier (2)
Why Miracle Refrigeration Sight Glass
We have rich experience in refrigeration equipment production and export, so we can provide you with professional technical support.
Miracle has great design capabilities so we can customize refrigeration sight glass to match your demand. (Support OEM service)
Miracle refrigeration and air conditioner sight glass have passed CE, ISO, and UL certifications and OEM for international well-known brands. Contact us now for more details.

Miracle Team are Always with You
We focus on the quality of refrigeration sight glass and filter driers, and put your energy back into your sales!
- Refrigerant Sight Glass Catalog
- Filter Drier and Pressure Vessel Catalog PDF
Refrigeration Sight Glass for Condensing Unit
Miracle can not only provide you with refrigerant sight glass service but also condensing unit service.
We have a cost-effective unit with 30 years of condensing unit manufacturer experience.
Miracle can supply you with air-cooled units, water-cooled units, commercial units, small condensing units, and horizontal condensing units.
If you have any problem, please contact us now.

What Types of Refrigerant Sight Glass? How Does a Refrigeration Sight Glass Work? How to Read a Refrigerant Sight Glass? Refrigerant Sight Glass Moisture Indicator and refrigerant sight glass bubbles, you can find everything from “Refrigerant Sight Glass-Everything You Need to Know“. Check now.
AC refrigerant sight glass is also called dry humidity indicator refrigerant sight glass. AC refrigerant sight glass is suitable for refrigerants such as R22, R134a, R407C, R404A, R410a, R507, etc.
AC refrigerant sight glass is installed between the condenser and the throttle (capillary tube, expansion valve) to observe the state of the liquid refrigerant.
The operators can determine the moisture content of the refrigerant through the color change of the test paper in the air conditioner sight glass, to achieve convenient and quick repair and maintenance.
For more information, please do not hesitate to contact us now!
Miracle refrigeration valves include rotalock valves for pressure vessels, refrigeration ball valves for refrigeration unit piping, and refrigeration check valves for air conditioning piping.
Refrigeration solenoid valves and expansion valves to control the flow of refrigeration systems, hot gas bypass valves to protect compressors.
Reversing valves to switch between hot and cold modes.

Condenser and evaporator are the most common components in refrigeration systems. Check “Refrigeration Condenser-A Complete Guide” to help you better understand Refrigerant Sight Glass and Condenser.
Almost all refrigeration systems involve evaporator units and condenser units.
Miracle provides customized condensers and evaporators for your refrigeration equipment.
It can be used for refrigeration equipment, air conditioning equipment, heat pumps, HVAC, etc.
If you are designing your refrigeration system and need a customized condenser, we will provide you with a condenser with sufficient subcooling and an evaporator with sufficient superheat.
Check more types of air-cooled condensers and evaporator units.
The use of refrigerant sight glass is mainly used in refrigeration units, and part of the application of units is used in cold storage systems.
If you have a business related to the cold storage industry.
Miracle can supply you with a complete service of cold storage accessories, including cold storage doors, cold storage panels, cold storage accessories, cold storage units, etc. Send your inquiry now!
One-stop solution for cold room: cold room refrigeration unit, walk-in cooler condensing unit.
Braze-free refrigerant sight glass is a new kind of sight glass. Braze-free refrigerant sight glass has been developed successfully due to the maturity of fireless connection technology.
Braze-free refrigerant sight glass needs to be used with Miracle braze-free HVAC fitting.
You may be thinking about vibrations in the refrigeration system, but in fact, you can be completely assured that the cold connection is more reliable than welded and threaded connections.
Braze-free refrigerant sight glass has a fast and efficient connection and does not generate high temperatures that can damage refrigeration fittings. For more details, please send your inquiry now!
Flange oil sight glass is mainly installed on the pressure vessel, used to observe the liquid level in the reservoir.
The flange oil sight glass use pressure is 2.5~5.0Mpa, use temperature range is -40℃~160℃. Temperature shock data is -40C~180℃.
Flange refrigerant sight glass installation and the body connection require a straight, unevenness of 0.05. If you have flange oil sight glass needs, please contact us now.
Besides that, we also support the refrigeration oil and oil pump for your refrigeration and air conditioner system.

Stainless steel refrigerant sight glass is mainly used in clean environments and areas with corrosion resistance requirements.
Stainless steel refrigerant sight glass is widely used in machinery, petrochemical, liquid storage, air conditioning and refrigeration equipment, gas compression equipment, automotive air conditioning, and automotive cooling systems, is a device to observe the internal level of the container and changes in response.
Miracle stainless steel refrigerant sight glass has the advantages of novel appearance, simple structure, good sealing, high compressive strength, good resistance to cold and thermal shock, easy installation, etc. Contact us now!

Threaded refrigerant sight glass is mainly used to observe the level of oil in compressors, pressure vessels, and valve parts and belongs to the category of oil sight glass.
Threaded refrigerant sight glass is treated differently from the glass form during the sintering process.
Usually, there are three types: flat mirror, corrugated mirror, and floating ball. When choosing different viewing methods, it is necessary to consider your applications.
Miracle threaded refrigerant sight glass applicable media: refrigeration oil can be applied (MO, POE, AB), refrigerant can be applied to R134a, R407C, R507, R22, R410a, and R717, etc. For more details please contact us now!































