Press jaw PB2-B - B26;26mm IVAR.PB2-B

Product detailed description

The IVAR press jaw PB2-B is a precision tool used in the installation of press-fit pipe systems. It enables accurate and repeatable crimping of 26mm diameter fittings, ensuring leak-free and durable connections in heating, plumbing and irrigation applications. The tool is commonly used in residential and commercial buildings during the installation of copper or stainless steel piping systems. Installers use it to create secure joints in domestic hot and cold water systems, underfloor heating circuits, and industrial fluid transfer lines. Proper use of the press jaw ensures correct deformation of the fitting, which is essential for long-term performance and compliance with technical standards.

When working with press-fit systems, the installer must ensure that the fitting is fully seated on the pipe before crimping. The press jaw is mounted on the electro-hydraulic crimping tool, and once activated, it applies even pressure around the fitting’s circumference. This process creates a tight mechanical bond between the pipe and fitting. The system eliminates the need for soldering or welding, reducing installation time and the risk of thermal damage to surrounding materials. The press jaw must be selected according to the specific fitting size and system type to avoid under- or over-pressing, which can compromise the integrity of the joint.

Technical parameters

Code	46793-50
Brand	IVAR

The press jaw PB2-B is specifically engineered for 26mm diameter fittings within the IVAR.ALPEX system. These parameters determine the correct selection of the tool to match the fitting size and system requirements. Using the wrong jaw size can lead to improper crimping, resulting in leaks or premature failure of the joint. The tool is calibrated to apply uniform pressure across the fitting, ensuring consistent deformation and a secure connection. The design accommodates standard wall thicknesses for copper and stainless steel pipes used in professional installations.

Installation and connection

Before crimping, the installer should verify that the pipe is cut cleanly and free from burrs. The fitting must be pushed fully onto the pipe until it reaches the stop mark. The press jaw is then positioned correctly on the crimping tool, ensuring that the jaws align with the fitting’s outer diameter. Once the tool is engaged, the electro-hydraulic mechanism applies the required force to deform the fitting around the pipe. After crimping, the installer should inspect the joint visually and perform a pressure test if required by the system specifications. Common errors include misalignment of the jaws, insufficient crimping force, or using the wrong jaw size for the fitting. These can lead to weak or failed joints and must be avoided through proper training and adherence to installation guidelines.

Compatibility and accessories

The press jaw PB2-B is compatible with the IVAR.ACO 203 XL BT electro-hydraulic crimping unit. For complete system functionality, the unit must be equipped with the appropriate power supply and control module. Additional accessories such as a calibration gauge and storage case may also be required for field use. The tool is part of the IVAR.PB2-B series and is intended for use with the IVAR.ALPEX press-fit system. It is not interchangeable with other press jaw models or systems from different manufacturers. Installers should ensure that all components are sourced from the same system to maintain compatibility and performance.

Technical background for designers

The IVAR press jaw operates by applying controlled mechanical deformation to the fitting, creating a permanent bond with the pipe. The jaws are manufactured from hardened steel to resist wear and maintain dimensional accuracy over repeated use. The design ensures even pressure distribution to prevent localized stress points that could weaken the joint. The system integrates seamlessly with existing plumbing and heating layouts, allowing for flexible routing and minimal space requirements. The longevity and reliability of the connection depend on correct installation, use of the specified jaw size, and adherence to the manufacturer’s technical guidelines. Environmental factors such as vibration and thermal expansion have minimal impact due to the secure mechanical nature of the joint.

Service and operation

Regular visual inspections of the press jaws are recommended to identify signs of wear or damage. Any deformation or misalignment of the jaws can affect the quality of the crimp and must be corrected before further use. The tool does not require scheduled maintenance beyond these inspections. In case of suspected damage, the jaws should be replaced immediately to avoid compromised connections. The electro-hydraulic unit must be maintained according to the manufacturer’s instructions, including checking the hydraulic fluid level and electrical connections. No lubrication is required for the press jaws themselves, as they are designed for low-maintenance operation in professional environments.

Frequently asked questions

Can the IVAR press jaw PB2-B be used with other fitting systems?
No, the PB2-B is specifically designed for the IVAR.ALPEX system. Using it with other systems may result in improper crimping and joint failure.

Is a separate calibration tool needed for the PB2-B press jaw?
Yes, a calibration gauge is recommended to verify the correct crimping depth and ensure consistent results across multiple joints.

Can the press jaw be used manually without the electro-hydraulic unit?
No, the PB2-B is designed for use with the IVAR.ACO 203 XL BT electro-hydraulic crimping tool only. Manual crimping units are not compatible with this jaw model.

How is the press jaw secured to the crimping unit?
The jaw is mounted onto the crimping unit using a locking mechanism that ensures alignment and stability during the crimping process. It must be fully seated and locked in place before operation begins.