12961

Name: Festo 12961 Precision one-way flow control valve GRP-160-PK-4
Brand: Festo

Precision one-way flow control valve GRP-160-PK-4

The Festo 12961 is a manual one-way flow control valve featuring PK-4 pneumatic connections on both ports and a rotary knob with a scale for the adjusting element. Built with a PA-reinforced housing for front panel mounting in any position, it delivers a standard nominal flow rate of 75.8 l/min in the flow control direction and 245 l/min in the non-return direction across an operating pressure range of 0 bar to 8 bar. This component operates with compressed air conforming to ISO 8573-1:2010 [5:4:3] or inert gases within an ambient temperature range of -10 °C to 50 °C, excluding oil-lubricated operation, and complies with VDMA24364 Zone III LABS conformity. Submit the exact part number, quantity, and application requirements to request a quote.

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Manufacturer: Festo
Part number: 12961
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Technical Specifications

Valve function: One-way ow control function
Pneumatic connection 1: PK-4
Pneumatic connection 2: PK-4
Actuation type: Manual
Adjusting element: Rotary knob with scale
Type of mounting: Front panel mounting
Standard nominal ow rate in ow control direction: 75.8 l/min
Standard nominal ow rate in non-return direction: 245 l/min
Operating pressure: 0 bar...8 bar
Ambient temperature: -10 °C...50 °C
Housing material: PA-reinforced
Mounting position: Any
Operating pressure from 2 to 1: 0 bar...8 bar
Standard nominal ow rate in ow control direction from 1bar to 0 bar: 38 l/min
Standard nominal ow rate in non-return direction from 1 bar to 0 bar: 25 l/min...90 l/min
Standard ow rate in ow control direction 6 -> 0 bar: 129 l/min
Standard ow rate in non-return direction at 6 -> 0 bar: 245 l/min
Operating medium: Compressed air as per ISO 8573-1:2010 [5:4:3] | Inert gases
Information on operating and pilot media: Operation with oil lubrication not possible
LABS (PWIS) conformity: VDMA24364 Zone III
Temperature of medium: -10 °C...50 °C
Product weight: 48 g
Note on materials: RoHS compliant
Seals material: NBR | PVC
Retainer bracket material: Wrought aluminum alloy

Engineering context

Identification and RFQ Guidance

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Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

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Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.

Technical verification

Our sourcing response is prepared against Festo 12961. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.