Norgren P68F-8GB-NNN Olympian Plus Dump Valve - 3-17 bar
Part Number: P68F-8GB-NNN
Quick Summary
P68F-8GB-NNN is a dump valve that provides controlled pressure release for pneumatic systems in automation equipment. Too-rapid start-ups can create pressure surges that wear cylinders, trigger trips, and disrupt production. This compact Olympian Plus valve is designed to help achieve CE marking under the European Machinery Directive and PUWER compliance by delivering a safe and predictable ramp. Engineers benefit from reliable startup performance, while procurement teams gain easier compliance documentation and long-term maintenance predictability. Used in line with standard compressed air systems, it pairs with G1 ports and 3/2 operation to optimize cycle times without overhauling existing hardware.
Product Information
Extended Description
P68F-8GB-NNN Norgren: Assists machine designers in complying with the European Machineries Directive | Can help existing machinery to comply with PUWER (Provision and Use of Work Equipment Regulations) | Controlled increase of downstream pressure on start up | High forward flow capacity | High flow dump facility
Medium
Compressed air
Operating Temperature
-20 ... 80 °C, -4 ... 176 °F
Operating Pressure
3 ... 17 bar, 44 ... 246 psi
Port Size
G1
Actuation
Air pilot / Spring return
Gauge Port
Rc1/8
Valve operation
3/2
Flow
147 dm3/sec, 312 scfm
Materials - Body
Aluminium
Materials - Elastomers
Nitrile rubber
Dimensions - Height
165 mm
Dimensions - Length
190 mm
Dimensions - Width
108 mm
Weight
3.05 kg
Country of Origin
Czechia
Range
P68F
Series
Olympian Plus
Brand
IMI Norgren
MB008B
Quietaire heavy duty silencer male, R1
M/P15737
Electrical plug with cable gland
T68C-AGB-B2N
Olympian Plus 3/2 plug-in system shut-off valve, G1-1/4
18-001-978
Wall Bracket
Medium and pressure range: The valve is designed for compressed air with an operating range of 3 to 17 bar, ensuring compatibility with existing factory air networks and minimizing need for system rework. Business impact: reduces integration time and supply-chain complexity. Application: ideal for machine start-up control in pneumatic cylinders and automated lines. Actuation and reset: Air pilot with spring return delivers reliable reset and predictable startup sequences. Business impact: enhances safety margins and reduces nuisance alarms. Application: suitable for robotics and packaging lines where consistent ramp control matters. High flow and robust build: Forward flow of 147 dm3/s (312 scfm) on a durable aluminium body with nitrile elastomer seals supports fast cycle times and long service life. Business impact: lowers cycle times and maintenance costs. Application: high-throughput manufacturing and metalworking environments. Compact, serviceable design: Dimensions 165 mm H x 190 mm L x 108 mm W and weight 3.05 kg enable easy installation in constrained spaces with standard G1 ports. Business impact: simplifies retrofits and upgrades. Application: retrofit projects and new builds alike. Installed accessory ecosystem: Includes MB008B silencer, M/P15737 plug, T68C-AGB-B2N shut-off valve, and wall bracket 18-001-978. Business impact: reduces noise, accelerates installation, and improves maintenance accessibility. Application: ready-to-install solutions for OEMs and integrators.
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FAQs
Install the P68F-8GB-NNN with standard G1 inlet/outlet connections and ensure the Rc1/8 gauge port is accessible for instrumentation. Use the included wall bracket 18-001-978 if panel mounting is required. Verify correct orientation for 3/2 valve operation and ensure air supply is clean, dry, and within the 3–17 bar range to achieve reliable startup control.
At operating pressures between 3 and 17 bar, the valve delivers a high forward flow of 147 dm3/s (312 scfm), enabling rapid yet controlled ramp-up of downstream actuators. The air-pilot/spring-return actuation provides repeatable reset, reducing pressure spikes and improving cycle consistency in automated lines and pick-and-place applications.
Yes. The aluminium body and nitrile elastomer seals are chosen for durability in demanding environments, delivering reliable performance across many cycles. The 3/2 valve configuration and robust flow characteristics support frequent start-ups and quick depressurization, keeping output consistent and minimizing unplanned downtime in packaging, bottling, and related lines.
This valve supports CE compliance under the European Machinery Directive and PUWER guidance, helping to satisfy regulatory safety requirements for machinery in Europe and the UK. For safety-critical SIL-rated applications, verify system-level safety integrity and consult the supplier for any specific SIL configurations or certifications applicable to your installation.
Maintenance is straightforward thanks to a robust aluminium body and accessible components, with standard spare parts readily available. The valve’s controlled start-up reduces mechanical wear and downtime, delivering a favorable return on investment through increased line throughput, reduced startup-related faults, and easier compliance documentation during audits.