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Complete ordering example: 6SV210-08B (B=DC24V, plug-in coil, PT thread)
- Model Code Decoding
| Field | Description |
| 6SV | Series: New‑generation internal‑pilot‑exhaust solenoid valve, compatible with manifold sub‑base for valve island assembly |
| 2 | 200 valve body size |
| 10 | 5/2‑way, single‑solenoid (spring return); energize for shifting, de‑energize for automatic spring reset |
| ‑08 | Port size PT1/4 (2‑thread); P/A/B ports PT1/4, R/S exhaust ports PT1/8 |
Suffix voltage code: A=AC220V; B=DC24V; C=AC110V; E=AC24V; F=DC12V
Electrical connection: Blank=plug-in; I=cable-out; D=DIN socket; M=M8 M12 connector; Thread: Blank=PT, G=G thread, T=NPT
- Core Electrical & Pneumatic Specifications
| Item | Parameter |
| Valve type | 5/2‑way, internal pilot operated, spring return, internal pilot exhaust (pilot air does not leak from coil side for dust resistance) |
| Operating pressure | 0.15‑0.8 MPa; Proof pressure 1.2 MPa |
| Ambient & medium temperature | ‑5 ~ +50℃, clean dry compressed air, oil‑free compatible |
| Flow capacity | ≈1080 L/min; Effective orifice Cv≈1.15, higher than legacy 4V210‑08 (850 L/min) |
| Coil power consumption | DC24V low‑power approx. 1.2W (legacy 4V: 2.8W) |
| Max switching frequency | 5 cycles/sec |
| Body material | Extruded aluminum alloy, NBR seals; Lubrication‑free |
| Ports | P(inlet)/A/B(working): PT1/4; R/S exhaust: PT1/8 |
| Mounting | Direct body‑mount via screws; compatible with 6SV200M manifold sub‑base for valve island |
III. 6SV210-08 VS 4V210-08 Comparison
| Item | 6SV210‑08 (New Generation) | 4V210‑08 (Legacy Classic) |
| Pilot exhaust | Internal exhaust, pilot air discharged through main R/S ports; no vent hole on coil housing, superior dust resistance | External exhaust; pilot air vents via small holes on coil housing, prone to dust ingress |
| Power consumption | 1.2W @ DC24V | 2.8W @ DC24V |
| Flow rate | 1080 L/min | 850 L/min |
| Electrical options | Plug‑in / Cable‑out / DIN / M8 (4 types) | Plug‑in, DIN (2 types) |
| Valve island footprint | Valve island assembly approx. 32% smaller | Larger overall dimension |
| Interchangeability | Mounting hole pattern NOT compatible with 4V210‑08; cannot fit 4V‑series manifold; dedicated 6SV200M sub‑base required | For 4V‑200 series manifold bases |
⚠️Selection pitfall: Not a direct drop-in replacement for 4V210-08. For valve-island retrofitting, use only 6SV200M manifold. Tube fittings remain interchangeable for standalone body-ported installation.
- Port Identification & Manual Override
P: Compressed air supply; A/B: Cylinder ports; R, S: Exhaust ports. Mufflers or exhaust throttles must be fitted.
Side-mounted manual override: Non-locking momentary push-button. Press to shift, release for reset. Used for pre-wiring manual cylinder test; do NOT hold continuously.
- Installation Rules & Hard Restrictions (Red Lines)
- Do not drop, strike or impact the pilot coil head. Pilot assembly is precision-built; impact causes spool sticking and internal leakage.
- Coil fastening screw M2.5 torque: 0.4-0.45 N·m. Avoid over-torque to prevent thread stripping.
- Compressed-air filtration is mandatory. Heavy moisture/oil contamination drastically shortens seal service life. Use only dry compressed air as working medium.
- Single-solenoid type: Spring-reset on de-energization. Avoid continuous coil energization, which accelerates coil aging.
- Avoid heavy EMI and heavy-dust environments. Even with internal pilot exhaust, mufflers are still recommended on exhaust ports.
- Typical Troubleshooting
| Symptom | Root Cause | Remedy |
| No shifting upon energization | Mismatched coil voltage; burnt‑out coil; clogged pilot orifice; supply pressure below 0.15 MPa | Verify coil voltage; measure coil resistance; check air supply; clear pilot passage |
| Fail to reset after de‑energization | Spring jam; debris‑stuck spool; overpressure | Disassemble & clean spool; verify operating pressure; improve air filtration |
| Persistent leakage at A/B ports | Worn spool seals; particulate contamination trapped inside valve cavity | Clean or replace valve assembly |
| Excessive coil heating | Over‑voltage; continuous long‑duration energization; wrong coil specification | Duty‑cycle control; verify supply voltage |
VII. Typical Application Scenarios
Automation assembly lines, packaging machinery, auxiliary pneumatic circuits for injection-molding machines, machine-tool pneumatic clamps, conveyor-line cylinder control. Ideal for valve-island cluster applications requiring low power consumption, high dust resistance and enhanced flow performance.
AIRTAC 6SV210-08 Bill-of-Material Breakdown
| Component | Material Specification |
| Valve body | Extruded 6061‑series aluminum alloy, hard anodized finish, high mechanical strength & corrosion resistance |
| Spool / Sleeve | Hardened aluminum alloy, precision‑honed bore for low friction |
| Seals (O‑rings, spool seals) | NBR nitrile butadiene rubber, optimized for compressed‑air service; operating range ‑5~+50℃, lubrication‑free |
| Return spring | Stainless spring steel |
| Pilot housing | Flame‑retardant PA engineering plastic |
| Coil winding | Enameled copper wire; coil housing: black flame‑retardant plastic with epoxy potting sealing |
| Thread ports | Integral machined aluminum PT1/4 threads on valve body |
| Fasteners | M2.5 pilot mounting screw: zinc‑plated carbon steel |
Supplementary Notes
- Medium limitation: Designed exclusively for dry compressed air. Not suitable for water, steam or highly corrosive gas. NBR is incompatible with ketones and ester-based organic solvents.
- Matching 6SV200M manifold sub-base: Extruded aluminum alloy + NBR gasket.
- Comparison vs legacy 4V210-08: Both use aluminum valve bodies. The 6SV series adopts optimized extrusion process for larger flow area, plus redesigned pilot housing to realize internal pilot exhaust.
AIRTAC Mainstream Solenoid Valve List & Cross-Brand Equivalent Reference
⚠️Important notice: This is functional-equivalent reference only, NOT physical drop-in replacement. Thread size, mounting footprint, manifold compatibility, coil power and Cv flow must be double-checked. Imported and domestic valve manifolds are mostly non-interchangeable; only working conditions are matched.
- AIRTAC Solenoid Series Overview
| Series | Valve Function | Key Features | Typical Models |
| 4V Series (Legacy, external pilot exhaust) | 5/2‑way /5/3‑way | External pilot exhaust, widely deployed in existing equipment; 4VM manifold base | 4V110‑06, 4V210‑08, 4V310‑10, 4V410‑15 |
| 6SV Series (New, internal pilot exhaust) | 5/2‑way /5/3‑way | Internal pilot exhaust, low power, improved dust resistance. Dedicated 6SV200M manifold; incompatible with 4V manifolds | 6SV110‑06, 6SV210‑08, 6SV310‑10 |
| 5V Series (Valve‑island dedicated) | 5/2‑way /5/3‑way | Low‑power, collective exhaust, high‑density valve island; 5V manifold | 5V110‑06, 5V210‑08, 5V310‑10 |
| 7SV Series (High‑flow) | 5/2‑way /5/3‑way | High flow rate, fast response, manifold‑mountable | 7SV210‑08, 7SV310‑10 |
| 3V Series (3/2‑way) | 3/2‑way (single‑acting cylinder) | Normally‑Closed NC / Normally‑Open NO; single‑acting cylinder & vacuum control | 3V110‑M5, 3V210‑06, 3V310‑08 |
| 4STV/6STV | 3/2‑way | Internal‑pilot‑exhaust 3/2‑way valve, replacement for legacy 3V series | 6STV210‑08 |
Suffix coding rule:
10=Single-solenoid spring-return; 20=Double-solenoid latching; 30C=Closed-center; 30E=Exhaust-center; 30P=Pressure-center
B=DC24V; A=AC220V; F=DC12V; C=AC110V; E=AC24V
- Functional Equivalent Cross-Reference Table
1) 5/2-Way Single-Solenoid (Most Common)
| AIRTAC Model | Port Size | SMC Equivalent Reference | FESTO Equivalent Reference | Domestic Equivalent (E‑MC / JELPC) |
| 4V110‑06 | PT1/8 | SY3120‑5LZD‑M5 | VUVG‑S10‑M52‑AT‑G18 | RV5121‑06 / J4V110‑06 |
| 4V210‑08 | PT1/4 | SY5120‑5LZD‑01 | VUVG‑S14‑M52‑AT‑G14 | RV5221‑08 / J4V210‑08 |
| 6SV210‑08 (New internal‑exhaust) | PT1/4 | SY5140‑5LOZ‑01 (internal pilot exhaust) | VUVG‑S14‑P53C‑MD‑G14 | RV5231‑08 (internal‑exhaust low‑power) |
| 4V310‑10 | PT3/8 | SY7120‑5LZD‑02 | VUVG‑S18‑M52‑AT‑G38 | RV5321‑10 / J4V310‑10 |
| 4V410‑15 | PT1/2 | SY9120‑5LZD‑03 | VUVS‑L30‑M52‑AD‑G12 | RV5421‑15 |
2) 5/2-Way Double-Solenoid
| AIRTAC Model | Port Size | SMC Reference | FESTO Reference | Domestic Reference |
| 4V220‑08 | PT1/4 | SY5220‑5LZD‑01 | VUVG‑S14‑B52‑AT‑G14 | RV5222‑08 |
| 6SV220‑08 | PT1/4 | SY5240‑5LOZ‑01 | VUVG‑S14‑P52C‑MD‑G14 | RV5232‑08 |
3) 5/3-Way Solenoid Valves (Closed-C / Exhaust-E / Pressure-P Center)
| AIRTAC Model | Port Size | SMC Reference | FESTO Reference | Domestic Reference |
| 4V230C‑08 | PT1/4 | SY5320‑5LZD‑01 | VUVG‑S14‑T52‑AT‑G14 | RV5223C‑08 |
| 6SV230C‑08 | PT1/4 | SY5340‑5LOZ‑01 | VUVG‑S14‑P53C‑MD‑G14 | RV5233C‑08 |
4) 3/2-Way for Single-Acting Actuators
| AIRTAC Model | Port Size | SMC Reference | FESTO Reference | Domestic Reference |
| 3V210‑08‑NC | PT1/4 | VT310‑5G‑02 | VUVG‑S14‑A3‑AT‑G14 | R3V210‑08‑NC |
III. Critical Replacement Risk Notes (Selection Pitfalls)
- 6SV cannot directly reuse 4V-series manifold bases. 6SV uses internal pilot exhaust; dedicated `6SV200M` manifold required. Legacy 4V uses `4VM` manifold. Mismatched mounting hole pattern causes air leakage if forced assembly.
- Internal-exhaust vs external-exhaust:
4V: External pilot exhaust. Vent openings on coil housing; higher risk of spool jamming in dusty environments.
6SV /5V: Internal pilot exhaust. Pilot waste air discharged via main R/S exhaust ports; no vent openings on coil, better for heavy-dust equipment.
- Coil power consumption:
Legacy 4V DC24V ≈2.8W; 6SV DC24V only 1.2W. PLC output drive capacity must be recalculated for large-scale valve islands.
- Physical mounting: SMC SY-series and FESTO VUVG valve islands feature completely different mounting footprints from AIRTAC. Cannot mix-mount on one shared manifold. Replace the whole manifold assembly for functional migration.
- 5/3-way valve: Maintain identical center-position function during replacement (C=Closed-center; E=Exhaust-center; P=Pressure-center). Mismatched center function will lead to abnormal machine motion logic.
- BOM Full Ordering Examples (for 6SV210-08)
6SV210-08-B: Single-solenoid DC24V, plug-in coil, PT thread (most-used)
6SV210-08B-I: Cable-out coil version
6SV210-08B-D: DIN socket coil version
Matching manifold base: 6SV200M-02 (2-station valve-island sub-base)
