A Capped Valve is normally used for refrigeration systems, where a quick pressure release is required. This valve has a cap or cover over the operating handle and is used to prevent unauthorized or accidental operation of the valve.

Uses capped valve

These types of valves are also used in systems where the valves are constantly under pressure and need to be released quickly.

A capped valve is made up of a body, a cap and a release knob. The body of the valve is usually made from brass or stainless steel. The cap is usually made from plastic or metal. The release knob is usually made from plastic or metal.

Structure capped valve

The body of the capped valve is usually threaded on the inside. The cap is usually screwed onto the body. The release knob is usually screwed onto the body. The release knob is usually used to release the pressure in the system.

Technical information capped valve

  • Refrigerant Type: R22, R134a, R404A, R407C, R410A, R507, R1234ZE, R448A, R449A, R450A, R452A, R513A
  • Kv Factor: 3.5 kv
  • Maximum Working Pressure: 4500kPa
  • Pressure Rating: 45 and 120 bar
  • Temperature Range: -35/+160DegC

Capped valve types

All Capped valve types are designed for installation on commercial refrigeration systems and domestic uses and industrial air conditioning plants that use the following refrigerant fluids:

  • HCFC (R22)
  • HFC (R134a, R404A, R407C, R410A, or R507)
  • HFO and HFO/HFC mixtures (R1234ze, R448A, R449A,
  • R450A, or R452A)
Capped valve types

5 key concepts of a capped valve for refrigeration systems

  1. Capped valves are used to regulate the flow of refrigerant in a refrigeration system.
  2. Capped valves are designed to open and close at specific pressures in order to maintain system pressure.
  3. Capped valves are typically located at the evaporator and condenser coils in a refrigeration system.
  4. Capped valves prevent the backflow of refrigerant and help to maintain system efficiency.
  5. Capped valves are an important part of a properly functioning refrigeration system and should be regularly inspected and maintained.

Refrigeration systems

Refrigeration systems are used to cool or freeze food and beverage products. There are many different types of refrigeration systems, each with its own advantages and disadvantages. The most common types of refrigeration systems are absorption refrigeration, air-cooled refrigeration, and water-cooled refrigeration.

Valves for cooling systems

Valves for cooling systems are used to control the flow of coolant in cooling systems. Cooling systems are used in a variety of applications, including HVAC, refrigeration, and automotive. There are a variety of valve types that can be used in cooling systems, including ball valves, check valves, and butterfly valves. Ball valves are the most common type of valve used in cooling systems, as they are able to provide a tight seal and are easy to operate. Check valves are also used in cooling systems, as they allow air to flow in one direction and prevent it from flowing back. Butterfly valves are used in some cooling systems, as they provide a higher flow rate than ball valves.

Capped valve maintenance for refrigeration systems

The maintenance of cap valves for refrigeration systems is a delicate and complex operation. This type of valve is used to regulate the amount of refrigerant that passes through the system.

The cap valves are designed to be used in systems that use CFC, HCFC, and HFC refrigerants. There are two main types of cap valves: the check valve and the relief valve.

  • The check valve is used to block the flow of refrigerant when the system is not in use. The relief valve is used to allow the refrigerant to flow when the system is in use.
  • The check valve is located at the inlet of the system. The relief valve is located at the outlet of the system.
  • The check valve is opened when the system is turned on. The relief valve is opened when the system is turned off.
  • The check valve is closed when the system is turned off. The relief valve is closed when the system is turned on.
  • The check valve is opened and closed by a solenoid. The relief valve is opened and closed by a diaphragm.
  • The check valve is opened by a pressure difference. The relief valve is opened by a temperature difference.
  • The check valve is opened by a change in the refrigerant’s boiling point. The relief valve is opened by a change in the refrigerant’s condensing point.
Capped valve
Capped valve

Additional technical information

Capped valve 45/120 bar: +2 PDF