Norgren S/666/7 Inline Valves - 3/2 Lever Actuation
Part Number: S/666/7
Quick Summary
Norgren S/666/7 Inline Valves are compact pneumatic valves used to control compressed air in automation systems. In tight panels and high-mix environments, space, reliability, and fast mounting are common pain points for engineers and technicians. In regulated applications, CE compliance and SIL safety integration, along with robust enclosure protection, matter for long-term uptime. This solution offers a compact footprint with lever actuation and 3/2 operation, helping engineers reduce assembly time and total cost of ownership while ensuring dependable pneumatic control. The design also supports easy integration with standard fittings and modular tubing, providing tangible value in routine maintenance and scaled production.
Product Information
Extended Description
S/666/7 Norgren: Long established and well-proven valves | Compact size | May also be used as 2/2 valves
Medium
Compressed air
Operating Temperature
-20 ... 80 °C, -4 ... 176 °F
Operating Pressure
2 ... 10 bar, 29 ... 145 psi
Port Size
G1/8
Actuation
Lever / Lever (panel mounting)
Function
NC
Valve operation
3/2
Dimensions - Height
19 mm
Dimensions - Length
75 mm
Dimensions - Width
34 mm
Weight
0.2 kg
Country of Origin
Czechia
Range
S/666
Series
Martonair
Brand
IMI Norgren
C02250618
Pneufit C Push-in fitting, Adaptor, Straight, External/Internal hex, 6mm, G1/8
C02470618
Pneufit C Push-in fitting, Adaptor, 90° Swivel elbow, 6mm, G1/8
T40C1800
Quietaire sintered bronze silencer, G1/8
PA2-0006100
Polyamide tube, Natural, 100m, 6mm/4mm
PA2-0006025C
Polyamide tube, Natural, 25m, 6mm/4mm
M/3314
Tube cutter
Feature → Business Impact → Application: The inline valve’s compact dimensions (75 mm length, 34 mm width, 19 mm height) maximize panel density and minimize enclosure footprint, enabling denser automation layouts and reduced cabinet costs when deploying multiple channels. This translates to faster installations and lower space-related costs in conveyor lines and packaging machines. Feature → Business Impact → Application: 3/2 valve operation with NC function and lever actuation offers immediate, tactile control for manual overrides and troubleshooting on-machine, improving line uptime and operator confidence in start-up sequences. Feature → Business Impact → Application: G1/8 port size and compatibility with Pneufit C fittings and 90° swivel elbows streamline plumbing, reducing assembly time and potential leak points in pneumatic circuits. Feature → Business Impact → Application: Operating range of 2–10 bar (29–145 psi) supports a wide spectrum of shop air systems, ensuring consistent performance across different plant air supplies without component changes. Feature → Business Impact → Application: Included silencers and standard tubing options (PA2 natural PA tubes) minimize noise and simplify retrofits in workstations and robotic cells, improving worker comfort and compliance with noise regulations. Feature → Business Impact → Application: Martonair lineage and Czech manufacturing ensure established quality and serviceability, with readily available spare parts and fittings, lowering maintenance cycles and the total cost of ownership for OEMs and system integrators.
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FAQs
The S/666/7 uses G1/8 ports and is designed to pair with Pneufit C push-in fittings and adapters (C02250618 and C02470618 variants). This simplifies plumbing, reduces assembly time, and minimizes leak paths. For best results, select straight or 90° elbow adapters to suit your panel layout and routing, and confirm tube diameters match 6 mm push-in lines.
Operating pressure ranges from 2 to 10 bar (29 to 145 psi), ensuring reliable 3/2 NC valve operation across standard plant air supplies. Expect consistent actuation with minimal air loss and attainable cycling times, especially when using compatible silencers like T40C1800 to reduce outlet noise in busy production environments.
Yes. The valve is explicitly designed for panel mounting with lever actuation and a compact footprint (75 mm length, 34 mm width, 19 mm height). Its rugged Martonair lineage and standard G1/8 ports make it ideal for space-constrained automation panels, robotics end-effectors, and compact conveyors.
While the datasheet highlights standard industrial compatibility, verify CE compliance and any safety-related certifications required for your region and application. For safety-critical or hazardous environments, confirm SIL compatibility and ensure your system enclosure provides the appropriate IP protection as part of your overall machine safety assessment.
The S/666/7’s compact size, lever actuation, and 3/2 NC operation reduce mounting time and component count. Built-in compatibility with Pneufit C fittings and silencers lowers leak potential and noise, while its lightweight design (0.2 kg) minimizes structural load. These factors collectively shorten maintenance cycles, speed up commissioning, and lower lifecycle costs in OEM and system-integrator projects.