Wafer Shut-off Valve WAFER J9 - stainless steel disc; FKM (Viton) - DN 65; L=46mm BRA.J9.622 FKM

Product detailed description

Wafer shut-off valves are essential components in industrial and building services systems, particularly in applications requiring reliable isolation of fluid flow. The IVAR WAFER J9 model is commonly used in heating, ventilation, and industrial fluid systems where a compact, durable solution is required. It is frequently installed in HVAC systems, chemical processing units, and oil and hydrocarbon handling systems. The valve’s compact design allows for installation between flanges in tight spaces, making it ideal for retrofitting or where space is limited. The operating temperature range of -10°C to +150°C ensures compatibility with a wide range of media, including water, oils, and gases.

Technical parameters

Installation and connection

Installation of the IVAR WAFER J9 requires positioning the valve between two flanges with a nominal diameter of DN 65. The valve is not self-supporting and must be installed between flanges with proper alignment and tightening. The flange faces should be clean and free from debris to ensure a secure seal. The valve is not suitable for installation in steam systems. Common installation errors include using mismatched flange ratings or failing to align the valve properly, which can lead to leakage or mechanical stress on the valve body.

Compatibility and accessories

The IVAR WAFER J9 is compatible with standard flanged piping systems rated PN16, PN10, or PN6. It is suitable for use with a range of fluids including water, oils, and gases. No additional accessories are required for standard installation. The valve is not compatible with steam systems due to the material and sealing limitations of the FKM liner. When designing or retrofitting a system, ensure that the flange ratings and media compatibility align with the valve’s specifications.

Technical background for designers

The IVAR WAFER J9 operates as a shut-off valve, closing the flow path by moving a disc between two flanges. The stainless steel body and disc provide durability and resistance to corrosion, while the FKM (Viton) sealing ensures a tight closure. The valve is designed for integration into systems where isolation is required without the need for full-body valves. The operating temperature range of -10°C to +150°C and the pressure rating of PN16/PN10 make it suitable for a wide range of applications. The service life and efficiency of the valve depend on the media being handled and the operating conditions, particularly temperature and pressure fluctuations.

Service and operation

Regular inspection of the valve is recommended to ensure proper operation and sealing. Check for signs of wear on the sealing surface and ensure that the flanges remain aligned. The valve does not require scheduled maintenance intervals, but any visible damage or leakage should be addressed immediately. The FKM sealing material is resistant to a range of chemicals and fluids, but long-term exposure to incompatible media can affect performance. Always refer to the manufacturer’s technical data sheet for specific service recommendations.

Frequently asked questions

Can the IVAR WAFER J9 be connected to steam systems?
No, the valve is not suitable for use with steam due to the limitations of the FKM sealing material.

What flange ratings are compatible with the IVAR WAFER J9?
The valve is compatible with flanges rated PN16, PN10, or PN6 according to EN 1092-1.

What is the maximum operating temperature of the IVAR WAFER J9?
The valve is rated for operation up to +150°C.

What media is the IVAR WAFER J9 suitable for?
The valve is suitable for use with water, oils, gases, and hydrocarbons, but not with steam or other incompatible media.