Festo U-1/8-B Pneumatic Silencer G1/8 1340L/min 74dB(A) 10bar 6841

Overview
The Festo U-1/8-B (part number 6841) is a compact, high-performance pneumatic silencer (muffler) from the U series, designed for effective noise reduction and contamination prevention at the exhaust ports of pneumatic components. This threaded silencer directly screws onto G1/8 ports, providing a simple yet efficient solution for reducing sound levels in industrial environments. It is an essential accessory for solenoid valves, cylinders, air motors, and other pneumatic equipment, helping to improve workplace conditions and protect sensitive components from debris.

Engineered for universal application, the U-1/8-B silencer features a rugged aluminium housing with a PE (polyethylene) silencing insert, offering excellent durability, corrosion resistance (CRC 1), and low weight. It operates reliably over a wide temperature range of -10 °C to +70 °C and a pressure range of 0 to 10 bar, making it suitable for a wide variety of industrial conditions.

With a high flow rate of 1340 l/min to atmosphere (when connected to a G1/8 port), this muffler minimizes back pressure while reducing noise levels to just 74 dB(A), effectively balancing performance and workplace comfort. Weighing only 8 g, it is one of the lightest and most compact solutions in its class, allowing for easy installation in tight spaces. The product is RoHS compliant and free from copper and PTFE.

Key Features

• G1/8 Threaded Connection – Features a male G1/8 thread (BSPP) for direct, secure installation onto the exhaust ports of pneumatic components.

• High Flow Capacity – Delivers a flow rate of 1340 l/min to atmosphere, minimizing pressure drop and ensuring efficient system operation.

• Effective Noise Reduction – Lowers exhaust noise levels to 74 dB(A), creating a quieter and safer working environment in industrial facilities.

• Wide Operating Range – Reliable operation with an operating pressure range of 0 to 10 bar and an ambient/media temperature range of -10 °C to +70 °C, suitable for diverse industrial conditions.

• Compact & Lightweight – Extremely compact design with an overall weight of only 8 g, ideal for space-constrained installations.

• Durable Construction – Aluminium housing with PE (polyethylene) silencing insert provides excellent corrosion resistance (CRC 1) and long-term reliability.

• Low Corrosion Stress – Corrosion resistance class CRC 1, making it suitable for indoor applications with low corrosion stress.

• RoHS Compliant – Meets environmental standards for restricted substances, and is also free from copper and PTFE.

• Original Brand New, Within Warranty Period – Genuine Festo product, brand new in sealed packaging, covered by manufacturer‘s warranty.

• 100% Satisfaction Guarantee – Your purchase is protected by our satisfaction guarantee; return or exchange if not completely satisfied.

Technical Specifications

Applications
Ideal for noise reduction and contamination prevention at the exhaust ports of pneumatic components, including valves, cylinders, air motors, and other compressed air equipment. Suitable for use in factory automation, packaging machinery, material handling systems, assembly lines, food and beverage processing, and general industrial automation where effective exhaust silencing is required. The U-1/8-B is particularly effective when used with Festo VSVA series valves.

Package Includes

• 1 x Festo U-1/8-B Pneumatic Silencer (6841)