Festo U-3/8-B 6843 Pneumatic Silencer G3/8

Festo U-3/8-B is a pneumatic muffler (silencer) designed for noise reduction and contamination prevention at exhaust ports of pneumatic components. Features a G3/8 male thread connection, high flow capacity of 5,800 L/min, and a noise level of 80 dB(A). Aluminium housing with PE (polyethylene) silencing insert. Suitable for factory automation, valve manifolds, cylinders, and pneumatic systems requiring quiet, clean exhaust.

Applications:

• Noise reduction at pneumatic valve and cylinder exhaust ports

• Valve terminal and manifold silencing

• Industrial automation and packaging machinery

• Exhaust filtration to prevent contamination in clean environments

Core Specifications:

• Product type: Pneumatic muffler / silencer

• Pneumatic connection: G3/8 (male thread)

• Flow rate to atmosphere: 5,800 L/min

• Noise level: 80 dB(A)

• Operating pressure range: 0 … 10 bar

• Operating medium: Compressed air to ISO 8573‑1:2010 [7:-:-]

• Mounting position: Any

• Housing material: Aluminium

• Silencing insert material: PE (polyethylene)

• Weight: approx. 37 g

• Ambient temperature: -10 … +70 °C

Advanced Specifications:

• Corrosion resistance class (CRC): 1 (low corrosion stress)

• Product weight: 37 g

• Logistics dimensions (L × W × H): 87 × 25 × 25 mm

• RoHS compliant, free of copper and PTFE

• Lubricated operation possible

• Symbol: 00991473

System Integration:

• Belongs to Festo U series of pneumatic silencers.

• Directly screws onto exhaust ports with G3/8 male thread.

• Compatible with Festo valve systems, cylinders, and pneumatic components requiring G3/8 exhaust connections.

• Tool‑free installation; can be mounted in any position.

Standards & Compliance:
Refer to manufacturer official documentation for detailed certification and compliance information.

Related Products:

• Smaller port size → U-1/8-B (G1/8, lower flow rate)

• Current model → U-3/8-B (6843, G3/8, 5,800 L/min)

• Larger port size → U-1/2 (G1/2, 13,700 L/min)

• Accessory replacement → U-3/8-BR (552421, similar with different housing material)