33
© 11.2023
12.1 Noise Reduction
12.1.2 Application / Function
The noise reduction made of metallic foam is inserted into the housing of the gas
pressure regulator between the valve seat and the housing cover and reduces noise in
the gas pressure regulator produced by the flow rate by up to -15 dB (±3 dB).
12.1.1 Use
• Gas pressure regulators RS 250 / RS 251
• Gas pressure regulators RS 254 / RS 255
• Gas pressure regulators RSP 254 / RSP 255
• Gas pressure regulators R101
12.1.3 Mounting
• Unscrew the cover
• Slide the noise reduction (metallic foam) over the
spindle and the valve plate until it makes contact
with the valve seat.
• Screw down the cover again, thus pressing the
noise reduction firmly against the valve seat*
12 Accessories / Options