Norgren S/666/14 Inline Valve - 3/2 NC, G1/8
Part Number: S/666/14
Quick Summary
Norgren S/666/14 inline valve is a compact pneumatic valve used to control compressed air in automation lines. Engineers often confront tight spaces and the need for reliable 3/2 NC control in small circuits, making a compact, easy-to-install solution essential. The dataset does not specify certifications like CE, SIL, or IP; verify details on the official datasheet for your regulatory needs. This valve’s small footprint, plunger/spring return actuation, and standard G1/8 porting support fast, dependable installation in tight panels, while its compatibility with common push-in fittings and tubing helps reduce assembly time and leak risks. For broader system value, it aligns with common industrial practices and supports scalable automation strategies.
Product Information
Extended Description
S/666/14 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
Plunger / Spring return
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
PA2-0006025C
Polyamide tube, Natural, 25m, 6mm/4mm
M/3314
Tube cutter
PA2-0006100
Polyamide tube, Natural, 100m, 6mm/4mm
Feature → Business Impact → Application: The S/666/14’s compactMartonair design delivers a small footprint that frees enclosure space and simplifies panel layouts, enabling denser control architectures and easier service access in packaging and assembly lines. This translates to measurable efficiency gains, reduced cabinet size, and lower installation costs in factory automation. Feature → Business Impact → Application: Plunger with spring return provides fail-safe NC operation, ensuring a known default state during power loss or actuator fault, which improves machine safety and uptime in food & beverage and automotive assembly cells. Feature → Business Impact → Application: 2 to 10 bar operating pressure and -20 to 80 °C range extend performance across machining centers and process lines, maintaining reliability in environments with temperature swings and fluctuating air supply. Feature → Business Impact → Application: G1/8 port size and standardized Pneufit C fittings (6 mm) simplify sourcing and plumbing; installation is quicker with fewer custom components, reducing project risk in line start-ups. Feature → Business Impact → Application: May also be used as a 2/2 valve in simple circuits, enabling design flexibility and cost savings in small transfer and pick-and-place stages. Feature → Business Impact → Application: Silencers and tubing options (PA2 tubes, 25 m/100 m, 6 mm/4 mm) minimize noise and leak potential, enhancing operator comfort and system integrity in automated packaging lines. Industry context: The valve’s compatibility with widely used Martonair components supports standardization across multiple lines, improving maintenance planning, spares availability, and ROI over time.
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FAQs
Install the S/666/14 using compatible Pneufit C push-in fittings (6 mm) and the included parts list: C02250618 straight adaptor, C02470618 90° swivel elbow, T40C1800 silencers, and PA2 tubing options. Mount the valve securely, align with the panel cutout, connect 6 mm tubing to the G1/8 port, and attach the silencer to reduce noise. Use the 75 mm length and 34 mm width to plan space and ensure clearance for actuators and wiring.
The valve features NC function and 3/2 valve operation with plunger/spring return actuation, ensuring a defined default state and predictable behavior in automated circuits. Its compact size, G1/8 porting, and compatibility with standard fittings simplify integration into small conveyors, pick-and-place stations, and packaging equipment, while enabling straightforward replacement without major rework.
Design for a compressed air medium across a temperature range of -20 to 80 °C and an operating pressure range of 2 to 10 bar. With G1/8 ports and 3/2 NC operation, the S/666/14 performs reliably in typical factory environments, provided the air supply is clean and dry. Verify datasheet details for any lubrication or warranty considerations specific to your application.
Yes. The valve is designed to work with Pneufit C push-in fittings (6 mm), including a straight adaptor and 90° elbow, plus compatible tubing (PA2 series) and silencers (T40C1800). This compatibility reduces accessory sourcing, speeds up installation, and minimizes leak paths, which is especially beneficial in automated packaging and small-assembly lines.
Expect space savings from the compact Martonair design, faster assembly due to standard fittings and tubing, and improved reliability from a proven 3/2 NC valve with spring return. These factors translate to shorter changeovers, lower maintenance costs, and a strong ROI through higher line uptime and easier spares management across multiple production lines.