Compensators

Purpose of Rubber Expansion Joints for Water Hammer

Rubber expansion joints for water hammer are essential equipment in pipeline systems where hydraulic shocks and vibrations occur. These joints are designed to prevent damage to pipes, equipment, and reduce the negative impact of hydraulic shocks on the overall system.

Hydraulic shocks in pipeline systems can occur during sudden changes in fluid velocity, valve closure or opening, and other alterations in the system’s operating conditions.

The primary function of rubber expansion joints for water hammer is to prevent the adverse consequences of such shocks. They dampen vibrations and absorb the energy of hydraulic shocks, ensuring the stability and reliability of the pipeline system.

Usage of Rubber Expansion Joints

Rubber expansion joints for water hammer are widely used in various industries, such as oil and gas, chemical, energy, and water supply, particularly in water treatment and drainage. They are installed in hot and cold water supply systems, steam and thermal networks, as well as in cooling and air conditioning systems.

Types of Rubber Expansion Joints for Water Hammer

There are several main types of rubber expansion joints for water hammer, each designed to address specific tasks:

• Expansion Joints: Designed to compensate for thermal expansion and contraction of pipelines and to dampen hydraulic shocks;
• Ball Joints: Used to absorb vertical and horizontal vibrations, preventing damage to pipes and equipment;
• Flexible Joints: Provide flexibility in the pipeline system, compensating for movements and vibrations caused by hydraulic shocks.

Device of Water Hammer Compensators

The main elements of rubber expansion joints include a flexible rubber element, which can be in the form of a plate, sleeve, or bellows. This element is installed between the flanges of the pipeline and is capable of compensating for changes in the pipe length, as well as absorbing the energy of hydraulic shocks.

Rubber compensators are used to mitigate vibrational loads and compensate for axial, angular, and lateral displacements of pipelines and equipment. The flexible insert of the anti-vibration compensator consists of a bellows made of various types of synthetic rubber. The bellows is reinforced with a cord made of synthetic fibers or steel, and when operating under vacuum conditions, an internal support ring is installed for additional support. The compensators are equipped with flanges or coupling connections for installation on pipelines and equipment. If necessary, limiting devices can be installed on the device

Rubber expansion joints for water hammer play a crucial role in ensuring the safe and efficient operation of pipeline systems. Their proper selection and installation can significantly increase the lifespan of equipment and pipeline fittings, reduce repair costs, and ensure system stability. Therefore, it is important to pay proper attention to the selection and maintenance of rubber expansion joints for water hammer in accordance with the specific requirements of the system.

1SREJ – single-stage compensator

1S REJ LS – single-stage compensator

2S REJ – two-stage compensator

2S REJ ND2 – two-stage compensator

1S REJ PTFE – single-stage compensator

1S REJ Food – single-stage compensator

1S REJ Arch – single-stage compensator

MS REJ SS – multistage compensator

MS REJ PTFE – multistage compensator

How to Buy a Hydraulic Shock Compensator and What Affects Its Price

To properly choose a hydraulic shock compensator, follow these steps:

1. Determine System Type: Consider the system where the compensator will be used. It can be for cold or hot water supply, as well as heating.
2. Study Specifications: Pay attention to parameters such as operating pressure, temperature range, and materials used to make the compensator.
3. Sizes: It is essential to select the correct dimensions for the compensator. It should match the pipe diameter and have the necessary fittings.
4. Manufacturer: Consider the manufacturer and their reputation. Well-known brands usually offer higher quality and more reliable products.
5. Certificates and Warranties**: Ensure that the compensator has all the necessary quality certifications and a warranty from the manufacturer.

What Affects the Price of a Hydraulic Shock Compensator:

• Materials: Prices may vary based on the materials used. Metal compensators tend to be more expensive than plastic ones;
• Sizes and Features: More complex designs are typically pricier than simple and smaller models;
• Brand: Products from well-known brands usually come at a higher price, but they also guarantee better quality and reliability;
• Additional Features: Some models may include extra features such as built-in pressure sensors or automatic control systems, which also affect the price.

When selecting and purchasing a hydraulic shock compensator, it’s crucial to consider various factors, including the specifics of your system, product characteristics, and the manufacturer’s reputation. Making the right choice will help avoid serious issues with hydraulic shocks and ensure reliable water supply operation. Remember to compare prices and purchasing conditions to find the optimal option that meets your requirements and budget.

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