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Description

The Festo RS-3-1/8 (part number 2272) is a 3/2-way roller lever valve in the RS Series, designed for use in pneumatic control systems operating on compressed air. This part is also referenced under the catalog number 2272. Refer to manufacturer documentation to confirm compatibility with your specific application.

This valve features mechanical actuation via a roller lever with an internal pilot air supply and a monostable, closed-center function — returning to the closed position via mechanical spring when the lever is released. It delivers a standard nominal flow rate of 151 l/min through a G1/8 port with a nominal width of 3.5 mm, over an operating pressure range of 3.5 to 8 bar (0.35 to 0.8 MPa). The body is anodized aluminum with NBR sealing, a poppet/plate seat design, and soft sealing principle. Mounting position is unrestricted (any orientation).

The RS-3-1/8 is an indirectly (pilot) actuated valve with a non-reversible flow direction and an optional exhaust air flow control function. It is rated for use in ATEX explosive atmospheres — Zones 1, 2, 21, and 22 — and the operating medium must be compressed air per ISO 8573-1:2010. Minimum required switching frequency is 1 cycle per year to maintain valve integrity.

Technical Specifications

Brand: Festo
MPN: RS-3-1/8
Catalog Number: 2272
Type: Roller Lever Valve (Mechanically Actuated Pneumatic Directional Control Valve)
Series: RS
Valve Function: 3/2-way, closed, monostable
Actuation Type: Mechanical (Roller Lever)
Reset Method: Mechanical Spring
Ways / Positions: 3-way, 2-position
Port Size: G1/8
Nominal Width: 3.5 mm
Operating Pressure: 3.5 to 8 bar (0.35 to 0.8 MPa)
Standard Nominal Flow Rate: 151 l/min
Operating Temperature: -10 to 60 °C
Operating Medium: Compressed air per ISO 8573-1:2010
Pilot Type: Indirect (pilot-actuated), internal pilot air supply
Flow Direction: Non-reversible
Design: Poppet / Plate Seat
Sealing Principle: Soft
Body Material: Anodized Aluminum
Seal Material: NBR
Mounting Position: Any (unrestricted)
Exhaust Air Function: With flow control option
ATEX Rating: Zone 1, Zone 2, Zone 21, Zone 22
Dimensions: 51.5 mm L x 64.5 mm W
Weight: 104.3 g (0.23 lb)
GTIN: 4052568000189
Country of Origin: Hungary

Condition: New — Open Box. Sourced from manufacturing MRO turnover, plant closures, and industrial surplus; the part is new and unused but may have been in storage for years. Packaging may show shelf wear or be missing.

Shipping & Handling

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About ACME MRO Solutions

We started ACME MRO Solutions to fix something we kept running into as contractors — plants down, parts slow, surplus listings you couldn't trust. Our goal is simple: get YOU the right component fast, with an honest description, so you can get back to running.

We describe what we see. Used items show signs of use; if a part has visible wear, damage, or a missing component, the condition description will say so. We don't claim anything is tested unless we tested it — and we don't bench-test parts where testing isn't practical or revealing (feed-through modules, breakers, mechanical components). When we do test something, we'll say so explicitly.

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