WAFER J9 - disk nickelled cast iron; EPDM - DN 125; L=56mm BRA.J9.100

Product detailed description

Wafer-style valves are commonly used in heating and ventilation systems in residential, commercial and industrial buildings. They are installed between flanges in pipelines to regulate or isolate media flow. This model is suitable for use with water and compressed air in systems where temperature stability and sealing integrity are essential. The compact design and flange compatibility make it ideal for tight spaces and standard piping configurations.

When selecting and sizing this valve, the installer must consider the system pressure and temperature range. The valve is designed for use in environments with a maximum operating temperature of +120°C and a minimum of -10°C. The PN16/PN10 pressure rating ensures compatibility with standard flange classes. The nominal diameter of DN 125 must match the connected piping to ensure proper flow and system integrity.

Technical parameters

Installation and connection

Installation requires the valve to be placed between two flanges. The nominal diameter of DN 125 must match the flange size to ensure a secure connection. The valve is not suitable for use with flange classes beyond PN16. During installation, the user should verify that the flange surfaces are clean and free of debris to ensure a proper seal. Common installation errors include misalignment of flanges, which can cause leakage or damage to the sealing components. The valve must be tightened evenly to avoid uneven stress on the sealing disc.

Compatibility and accessories

This valve is compatible with standard PN16/PN10 flanges and is suitable for use with water and compressed air. It is not recommended for use with steam or fluids containing oils or hydrocarbons. No additional accessories are required for standard installation, but the user should ensure that the flange bolts and gaskets are compatible with the system media and operating conditions.

Technical background for designers

The WAFER J9 valve operates as a shut-off device, using a disc to block or allow media flow. The cast iron body provides structural integrity, while the EPDM sealing ensures a tight closure. The valve is designed for use in systems with fluctuating pressure and temperature conditions. The material selection ensures resistance to corrosion and mechanical wear. The compact design allows for easy integration into existing piping systems without requiring extensive modifications.

Service and operation

Regular inspection of the sealing components is recommended to ensure continued performance. The user should check for signs of wear or deformation on the disc and sealing surface. The valve should be operated manually using the locking lever mechanism. No specific service intervals are provided, but maintenance should be performed as part of routine system checks. If leakage is detected, the sealing components should be inspected and replaced if necessary.

Frequently asked questions

Can the WAFER J9 valve be used with steam?
No, the valve is not suitable for use with steam or fluids containing oils or hydrocarbons.

Is the valve suitable for use with compressed air?
Yes, the valve is suitable for use with compressed air within the specified temperature range of -10°C to +120°C.

Can the valve be used with flanges beyond PN16?
No, the valve is only compatible with flanges rated PN16, PN10 or PN6.

What is the maximum operating temperature for this valve?
The valve is rated for operation up to +120°C and down to -10°C.