Airtac 4V210-08BIT-W External Pilot Solenoid Valve (DC24V, NPT 1/4) | Direct Lead Wire

Name: Airtac 4V210-08BIT-W External Pilot Solenoid Valve (DC24V, NPT 1/4) | Direct Lead Wire
Brand: AirTac
Price: 31.50 USD
Availability: InStock

$31.50 USD

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Quick Highlights

✅ External Pilot Design (-W): Operates independently of main line pressure, making it essential for vacuum and zero-pressure systems.
✅ NPT Thread Standard (T): Specifically engineered with 1/4" NPT threads for seamless integration into North American pneumatic systems.
✅ Grommet Type (I): Space-saving direct lead wire design provides a compact footprint and superior vibration resistance.
✅ High Response Speed: ≤ 0.05s switching frequency, perfect for high-speed, synchronized automated production lines.

Technical Specifications

Port Size	Main: NPT 1/4"; Pilot: M5; Exhaust: NPT 1/8"
Power Consumption	DC24V (3.0W)
Operating Pressure Range	Main: -0.1 ~ 0.8MPa; Pilot: 0.15 ~ 0.8MPa
Max. Frequency	4 Cycles/Second
Operating Temperature	-20 ~ 70°C
Proof Pressure	1.2MPa (174 Psi)

Professional Analysis

The Airtac 4V210-08BIT-W is a highly specialized 5/2 way solenoid valve engineered for North American automation environments where space is limited and main line pressure is unstable. By incorporating the External Pilot (-W) configuration, this valve decouples the shifting mechanism from the main supply, allowing it to control vacuum lines or zero-pressure systems reliably.

Adhering to the most rigorous 4v210 08 solenoid valve specification, the 4V210-08BIT-W features a Grommet (I) direct lead wire interface and NPT (T) threads. This combination eliminates bulky connectors and ensures leak-proof integration with American standard fittings. Whether you are consulting the airtac 4v210 08 manual for vacuum integration or building a custom airtac valve 4v210 08 manifold, this DC24V model provides the robust commutation required for complex pneumatic logic.

Key Advantages

Vacuum & Zero-Pressure Ready: The independent M5 pilot port ensures reliable spool shifting even when main line pressure is negative or below the switching threshold.
Space-Saving Grommet Leads: The direct-out wiring reduces the installation footprint, allowing for higher density valve banks in compact control cabinets.
PLC Integration: The safe, low-heat DC24V coil (3.0W) can be driven directly by PLC outputs, simplifying electrical control cabinet design.
Exceptional Durability: Precision-ground aluminum body and wear-resistant seals provide a stable foundation for over 20 million reliable cycles.

Frequently Asked Questions (FAQ)

Q: Why does the 4V210-08BIT-W require an independent pilot source?
A: As an external pilot valve, it requires a steady air supply (0.15~0.8MPa) to the M5 port to move the spool when the main supply is at vacuum or very low pressure.

Q: Is NPT thread compatible with PT (BSP) fittings?
A: No. NPT (American) and PT (Asian/European) threads have different pitches and angles. Using mismatched fittings will cause leaks and potential thread damage.

Q: What is the benefit of the Grommet (I) type over the standard DIN type?
A: The Grommet type provides a smaller installation volume and superior protection against vibration, making it ideal for mobile machinery or compact equipment.