Airtac 3A300 Pneumatic Valve 3A31008NO
1. Spool-type structure with superior sealing performance and instant response characteristics;
2. Double pilot operation enables position memory function;
3. Precision-machined internal bores ensure minimized friction resistance, low actuation pressure (0.15MPa), and extended service life;
4. Maintenance-free operation without lubrication requirements;
5. Multiple mounting orientations (X/Y/Z axes) for flexible installation;
6. Compatible with manifold base integration for space-optimized valve arrangements.
Category: Pilot Operated Valves | Brand: AirTAC | Series: 3A300
AirTAC 3A300 Series 3A31008NO Pneumatic Control Valve Specifications
- Model: 3A31008NO
- Type: 3-position, 5-way closed center (pneumatic pilot operation)
- Port configuration: 5 ports (P, A, B, EA, EB)
- Port size: PT1/4 (NPT1/4 optional)
- Operating pressure: 0.2–0.8 MPa (29–116 psi)
- Max flow rate: 750 L/min (ANR)
- Actuation type: Air pilot (dual pressure control)
- Seal material: HNBR rubber (oil & heat resistant)
- Valve body material: Aluminum alloy (anodized finish)
- Temperature range: -10℃ to 70℃ (14°F to 158°F)
- Weight: 220g ±5g
- Dimensions: 52mm(L) × 38mm(W) × 72mm(H)
- Response time: ≤0.1s (at 0.5MPa)
- Mounting style: ISO 5599-1 standard subplate
- Protection rating: IP67 (dust/water resistant)
High-flow directional control valve with center-block function, designed for precise mid-position control in pneumatic circuits. Features dual pilot pressure operation for stable switching and stainless steel internal components for extended cycle life. Requires 5-40μm filtered compressed air with ISO 8573-1:2010 Class 3.4.2 air quality.
- Clamping/positioning mechanisms in CNC machinery
- Automatic production line transfer systems
- Plastic injection molding machine actuators
- Material handling equipment with safety interlocks
- Food processing pneumatic circuits (requires optional FDA seals)
Installation note:
Ensure pilot air pressure is 0.15-0.2MPa higher than main circuit pressure.
Use anti-vibration mounts in high-cycle applications (>500,000 cycles/month).
Lubricate with ISO VG32 turbine oil if air line lubrication is unavailable.
| Property | Property Value |
|---|---|
| sku | 3A31008NO |
| Position | 3-Port 2-Position |
| Initial Position | Normally Open |
| Port Size | PT1/4 |
Returns will be accepted for up to 15 days of Customer’s receipt or tracking number on Not used items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:
- Received the wrong item.
- Item arrived not as expected (ie. damaged packaging).
- Item had defects.
- Over delivery time.
- The shipper does not allow the goods to be inspected before payment.
The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.