Grommet - internally threaded, 28 x Rp 3/4

Product detailed description

Internally threaded grommets are essential components in pressurised piping systems for heating, fire suppression, and industrial applications. These fittings allow for secure, leak-free connections between press fittings and threaded components without the need for welding. Installers working on central heating systems, air conditioning circuits, or industrial gas and air lines frequently use these fittings to ensure system integrity and ease of assembly. The IVC80.2834 model is particularly suited for environments where high pressure and variable temperatures are common, such as in commercial buildings, industrial facilities, and large-scale residential developments.

Correct selection and installation of these fittings are crucial for system performance. The grommet must be compatible with the pipe diameter and thread type, and the operating conditions must fall within the specified parameters. This ensures that the connection remains tight and functional over time, even under fluctuating loads and temperatures.

Technical parameters

Material	carbon galvanized steel
Operating temperature	-20 °C
Nominal pressure	PN 16
Resistance to high pressures up to	16 bar
Weight	0.156 kg
Code	IVC80.2834
Brand	IVAR

The operating temperature range of -20°C to +120°C and a maximum pressure rating of 16 bar make this grommet suitable for a wide range of applications. The PN 16 rating indicates that it is designed for systems operating at nominal pressures up to 16 bar. These parameters are essential for determining compatibility with existing piping systems and for ensuring that the fitting can withstand the mechanical and thermal stresses of the installation environment.

Installation and connection

The IVC80.2834 grommet is installed using a press tool compatible with M-type jaws. The press fitting side connects to a 28 mm pipe, while the internally threaded side accepts an Rp 3/4 connection. Before installation, the pipe end must be clean and free of burrs. The press operation must be performed according to the manufacturer’s instructions, ensuring that the molding indicator is fully engaged. A common mistake is insufficient pressing, which can lead to a weak connection. After installation, the system should be tested for leaks under operating pressure to verify the integrity of the joint.

Compatibility and accessories

This grommet is compatible with standard press tools and M-type jaws. It is designed to work with EPDM O-rings, which are included as part of the fitting. No additional surface coatings or limiting agents are required. For larger systems, it is important to ensure that all components are from the same press-fitting system to maintain compatibility and system integrity. No related products are available for this model.

Technical background for designers

The grommet operates by forming a mechanical and hydraulic seal between the press fitting and the threaded component. The carbon galvanized steel construction provides strength and resistance to corrosion in non-drinking water and industrial environments. The EPDM O-ring ensures a tight seal and is suitable for use with water, inert gases, and dry air. The material properties of the steel and the sealing compound are selected to withstand the mechanical stresses and thermal fluctuations typical of pressurised systems. The design allows for integration into closed-loop systems, where pressure and temperature stability are critical for long-term performance.

Service and operation

No specific maintenance is required for this fitting during normal operation. However, it is important to inspect the connection visually for signs of wear, corrosion, or leakage. If the system is subjected to unusual stress or vibration, the integrity of the joint should be rechecked. No service intervals are specified for this model.

Frequently asked questions

Can the IVC80.2834 be used in fire suppression systems?
Yes, the grommet is suitable for fire water piping systems operating within the specified pressure and temperature limits.

Is the grommet compatible with EPDM O-rings only?
Yes, the EPDM O-ring is included and recommended for use with water, inert gases, and dry air.

Can the fitting be used in solar heating systems?
Yes, provided the system operates within the temperature range of -20°C to +120°C and the pressure does not exceed 16 bar.

Can the grommet be used with other press systems?
No, it must be used with press tools and fittings from the same system to ensure compatibility and a secure connection.