Check valves – reliable protection for installations
A check valve is a key component in many hydraulic and pneumatic systems, ensuring one-way flow of the medium. In the Dambat range, under the IBO brand, you will find a wide selection of check valves designed for various applications – from water installations to fuel systems. Thanks to the appropriate selection of materials and design, IBO valves offer a long service life and high resistance to failure. They are suitable for both domestic installations and more demanding industrial applications.
Types of check valves available from IBO Dambat
Depending on your needs, you can choose from various types of check valves:
- Brass check valves – resistant to corrosion and ideal for water installations. Perfect for use in sanitary, heating, and water supply systems.
- Cast iron check valves – characterized by high mechanical strength. They are suitable for large industrial installations and high-flow applications.
- PVC check valves – lightweight and resistant to chemicals, used in swimming pool and industrial systems. Easy to install and exceptionally durable when handling aggressive media.
- Flanged ball check valves – ensuring tightness and easy installation in large systems. Used, among other applications, in fire protection, industrial, and water supply systems.
Applications of check valves
Water check valves are commonly used in pressure booster systems, water supply installations, and submersible and surface pumps. They prevent water from flowing back, thereby protecting pumps from damage. They also help stabilize system pressure and reduce the risk of hydraulic phenomena such as water hammer.
Fuel check valves are used in the fuel systems of vehicles and machinery, preventing fuel from flowing back into the tank and maintaining the appropriate pressure in the system. Their operation is crucial for the proper functioning of the engine. These valves are made from materials resistant to fuels, so although Dambat does not offer them, their operating principle is analogous to that of valves used for water.
Compressor check valves are essential in pneumatic systems, ensuring one-way airflow and protecting the compressor from damage in the event of a pressure drop. Their use increases the safety and efficiency of compressed-air systems. They are available in various versions – both for domestic use and professional workshop installations.
Selecting the right check valve
When selecting a check valve, pay attention to:
- Connection diameter – check valves are available in ½", ¾", 1 inch, 1¼", 1½", 2 inches, and larger sizes. The greater the flow, the larger the connection diameter should be selected for the installation.
- Material – brass, cast iron, or PVC, depending on the medium and operating conditions. The operating temperature and any aggressiveness of the medium should also be taken into account.
- Valve type – ball, wafer, or combination, selected to suit the specific installation. The choice of valve type affects its response to changes in flow and ease of servicing.
IBO Dambat check valve range
The IBO Dambat range includes check valves with various technical parameters, meeting the requirements of both domestic installations and industrial systems. The products are characterized by high-quality workmanship, durability, and reliable operation. The valves are available in threaded and flanged versions, and their installation is quick and hassle-free. Their effectiveness has been confirmed by numerous installers and users.
Frequently asked questions (FAQ)
How does a check valve work, and does it require servicing?
A check valve allows the medium to flow in only one direction. If the liquid or air attempts to flow back, the valve's closing element blocks the flow. In most cases, these valves are maintenance-free, although regular inspection for contamination and wear is recommended.
Where is the best place to install a check valve in a water system?
The valve should be installed as close as possible to the suction source – for example, at the pump inlet. In a pressure booster system, it is usually installed at the end of the suction pipe, preventing pressure drops and the need to refill the installation.
Does a fuel check valve differ from a water check valve?
Yes, the main difference is the material – fuel valves are resistant to contact with gasoline, oil, and biodiesel. The operating principle remains the same: they prevent the medium from flowing back. Water installations use materials resistant to corrosion and suitable for contact with drinking or utility water.
What is a throttle check valve, and when should it be used?
A throttle check valve combines flow throttling with protection against backflow. It is used wherever flow regulation is necessary, for example in hydraulic, compressed-air, or oil systems. This enables more precise operation of the installation.
Do ventilation check valves work in the same way as water check valves?
Ventilation check valves have a similar function – they prevent air or odors from flowing back. They are usually made from lightweight materials, such as plastic, and have a flap that lifts under the influence of airflow. However, their design and material differ from those of valves for liquids.
