Norgren S/666/1 Inline Valves - 3/2 NC, Compact Size
Part Number: S/666/1
Quick Summary
S/666/1 inline valve provides manual control for compact pneumatic circuits in automation and packaging lines. This design addresses tight panel spaces where access and fast actuation are critical, helping engineers avoid bulky solutions that slow down production. Though no certifications are listed for this exact unit, Norgren’s Martonair family commonly aligns with CE compliance and robust industrial standards, supporting reliable performance in demanding environments. The valve combines compact geometry with knob/spring actuation to simplify mounting and service. For buyers seeking efficiency and streamlined maintenance, this 3/2 NC inline valve delivers quick actuation, minimal footprint, and straightforward integration with standard pneumatic fittings.
Product Information
Extended Description
S/666/1 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
Knob / Spring return
Function
NC
Valve operation
3/2
Dimensions - Height
19 mm
Dimensions - Length
75 mm
Dimensions - Width
34 mm
Weight
0.14 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/666/1 combines a compact footprint (75 mm length, 34 mm width, 19 mm height) with a light 0.14 kg weight, enabling installation in space-constrained panels and reducing overall system enclosure size. This directly lowers cabinet costs and simplifies routing of compressed air lines in automated packaging lines. Feature → Business Impact → Application: Operating pressure range of 2 to 10 bar and a G1/8 port size provide broad compatibility with standard pneumatic manifolds and quick-fit accessories, accelerating installation and reducing engineering redesign time for existing machines. Feature → Business Impact → Application: Knob with spring return actuation makes manual actuation intuitive and repeatable, decreasing cycle time during manual overrides and maintenance windows in high-throughput manufacturing. Feature → Business Impact → Application: 3/2 valve operation with NC function ensures fail-safe defaults, improving single-pass testability and reducing leak paths in automated control loops. Feature → Business Impact → Application: Integrated components from the Pneufit C family and quieting options (T40C1800 silencer) minimize installation time and noise, supporting compliant, comfortable factory environments. Feature → Business Impact → Application: Availability of compatible tubing (PA2-0006025C, PA2-0006100) and fittings (C02250618, C02470618) streamlines procurement and reduces the risk of mismatch, speeding up commissioning and maintenance. Feature → Business Impact → Application: Detailed specifications and a datasheet facilitate risk assessment and lifecycle planning, enabling procurement to forecast maintenance intervals and spare part needs with greater accuracy.
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FAQs
Install the S/666/1 by mounting the valve in a protected, accessible panel and selecting Pneufit C push-in fittings (6 mm tube, G1/8 thread) for quick, bubble-free connections. Use the 90° swivel elbow option when routing tight bends and ensure the knob remains accessible for manual operation. Refer to the datasheet for torque recommendations and optional adapters.
The valve supports compressed air at 2 to 10 bar and operates across −20 to 80 °C. It uses a G1/8 port and is designed as a 3/2 valve with a normally closed function, driven by knob/spring actuation. It is compatible with standard DIN/Faston pneumatic hardware and the Martonair series accessories.
The device is a 3/2 normally closed valve, but the extended description notes it can be used as a 2/2 valve in certain applications with compatible plumbing and logic. Verify your circuit diagram and confirm with the datasheet to ensure proper configuration and sequencing.
Certification details are not listed in the provided data for this exact unit. For project risk assessment, consult the datasheet linked on the product page and verify with your compliance team whether CE marking or IP-related protections are required for your installation. Consider evaluating SIL/PL implications for critical control paths as appropriate.
Recommended accessories include Pneufit C push-in fittings (C02250618, C02470618), silencers (T40C1800) for noise reduction, and tubing (PA2-0006025C or PA2-0006100) with the M/3314 tube cutter for clean cuts. Having matching fittings and tubing reduces installation time and helps ensure leak-free operation across the 2–10 bar range.