Backflow Preventer - DISCONNECTOR - ECO 3T Series - 1 inch; L=258mm – SALE BRA.ECO 3T

Product detailed description

Backflow preventers are essential components in plumbing and heating systems where the risk of reverse flow must be mitigated. This model is commonly used in residential and commercial buildings, particularly in systems handling potable water or other non-hazardous liquids. Installers working on heating, sanitary or irrigation systems may encounter the need to integrate such devices to ensure compliance with safety and hygiene standards.

These devices are typically found in systems where pressure fluctuations or pump shutdowns could cause reverse flow. They are installed in closed-loop systems, such as circulation loops in heating systems, or in open systems where drainage is required. The ECO 3T series is designed for integration into such environments, ensuring reliable operation under specified conditions.

Technical parameters

Weight	3.265 kg
Code	ECO3T100
Brand	IVAR

The maximum operating pressure of 10 bar and temperature range of 0°C to +65°C are critical for determining system compatibility. These values influence the selection of materials and the type of media the device can handle. The 1 inch connection size must be considered during system design to ensure correct pipe sizing and flow capacity.

Installation and connection

The device must be installed with a filter upstream to prevent clogging of the internal components. The filter is essential for the long-term performance and must be selected according to the system’s media and particle content. The device is connected using threaded fittings ranging from 1/2 inch to 2 inch, following ISO 228-1 standards. Installers should ensure that the thread type matches the system’s piping and that all connections are sealed properly to prevent leaks.

Common installation mistakes include omitting the required filter or failing to connect the device to a drainage system. The device must be connected to a waste line to allow for the discharge of any trapped media or condensate. The orientation of the device should also be verified to ensure that the flow direction is correct and that the device is installed in a location accessible for inspection and maintenance.

Compatibility and accessories

This backflow preventer is compatible with systems using non-corrosive liquids and must be used in conjunction with a filter. No specific alternative models are available for this application. The device is not suitable for use with aggressive or high-temperature media beyond the stated limits. When ordering, ensure that a compatible filter and drainage system are also included.

Technical background for designers

The device operates as a non-return valve with an internal diaphragm made of EPDM. The body and cover are constructed from brass or bronze, providing resistance to corrosion and wear. The diaphragm ensures a tight seal against reverse flow, while the design allows for the safe discharge of trapped media via the drainage connection. The operating principle is based on differential pressure, with the diaphragm responding to flow direction changes to maintain system integrity.

The material selection ensures compatibility with a wide range of non-hazardous liquids. The maximum temperature limit of +65°C is determined by the properties of the EPDM diaphragm. Designers should consider the flow rate and pressure drop across the device when integrating it into the system to avoid performance issues. The device is intended for use in closed-loop systems where the media is clean and free from particulate matter.

Service and operation

Routine inspection is recommended to ensure that the device remains free from blockages and that the drainage system is functioning correctly. No specific service intervals are provided in the technical documentation. Installers should check for signs of wear or leakage during system maintenance. The device should be replaced if the diaphragm shows signs of degradation or if the seal is compromised.

Frequently asked questions

Can this device be used with hot water systems?
Yes, provided the temperature does not exceed +65°C. The device is suitable for hot water applications within this limit.

Is a filter required before installation?
Yes, the device must be preceded by a filter to prevent clogging and ensure long-term performance.

Can this model be used with aggressive chemicals?
No, the device is only suitable for non-corrosive liquids. Aggressive media may damage the internal components.

Does the device require a drainage connection?
Yes, the device must be connected to a drainage system to allow for the discharge of trapped media or condensate.