Wafer J9 - stainless steel disc; FKM (Viton) - DN 80; L=46mm BRA.J9.622 FKM

Product detailed description

Wafer butterfly valves are commonly used in industrial and building services applications where compact, reliable shut-off is required. The WAFER J9 model is suitable for integration into heating, ventilation and chemical industry systems. It is particularly useful in applications involving oils, hydrocarbons and compressed air. The valve is designed for installation between flanges and is not suitable for steam applications. Installers should consider the valve's dimensions and sealing material when planning system integration.

These valves are frequently found in HVAC systems, chemical processing plants and industrial piping systems. The compact design allows for installation in tight spaces while maintaining a high level of sealing performance. The stainless steel construction ensures resistance to corrosion, making it suitable for environments with aggressive media.

Technical parameters

Material	Body and disc - stainless steel AISI 316
Nominal diameter	DN 80
Nominal pressure	PN 16/PN10
Weight	5 kg
Code	J9.622.080
Brand	IVAR

The nominal diameter of DN 80 indicates the size of the pipe or fitting the valve is designed to connect to. The pressure rating of PN 16/PN10 defines the maximum allowable pressure for the system. These parameters are essential for correct sizing and selection to ensure the valve functions safely and efficiently within the system.

Installation and connection

The valve is installed between two flanges and requires a flange face compatible with EN 1092-1 standards. The nominal length of 46 mm should be considered when planning the flange spacing. Installers must ensure that the flange faces are clean and free from debris before mounting the valve. A common mistake is incorrect flange alignment, which can lead to leakage or damage to the sealing material. The valve should be tightened evenly using a torque wrench to avoid over-tightening or uneven stress on the sealing components.

Compatibility and accessories

The WAFER J9 is compatible with flanged piping systems rated for PN 16, PN10 or PN6. It is not suitable for steam applications. When installing, ensure that the flanges and gaskets used are compatible with the valve's specifications. No additional accessories are required for standard installation.

Technical background for designers

The WAFER J9 operates as a butterfly valve, where the disc rotates to control flow. The stainless steel disc and body provide resistance to corrosion and wear, while the FKM sealing ensures a tight shut-off. The valve is designed for use in systems with temperatures ranging from -10°C to +150°C. The material selection and sealing design influence the valve's service life and efficiency. The compact design allows for integration into systems with space constraints, while the flange connection ensures secure and leak-free operation.

Service and operation

The valve requires minimal maintenance due to its robust design and sealing material. Regular inspection of the sealing surface and flange connections is recommended to ensure continued performance. No specific service intervals are provided in the technical data, but any signs of wear or leakage should be addressed promptly to prevent system failure.

Frequently asked questions

Can the WAFER J9 be used in steam systems?
No, the valve is not suitable for steam applications. The sealing material and design are intended for use with liquids and gases within the specified temperature range.

What is the maximum allowable pressure for this valve?
The valve is rated for PN 16/PN10, indicating it can handle pressures up to 16 bar depending on the system configuration.

Is the valve suitable for chemical industry applications?
Yes, the stainless steel construction and FKM sealing make it suitable for use in chemical industry systems with oils, hydrocarbons and compressed air.

What is the temperature range for the WAFER J9?
The valve is designed to operate within a temperature range of -10°C to +150°C.