AirTAC 2WA Internally Piloted Normally Closed Valves
Internally piloted 2/2 normally closed valves with 15/20/25 mm orifices and a required...
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Internally piloted 2/2 normally closed valves with 15/20/25 mm orifices and a required 0.05–1.0 MPa pressure differential. Send the full model, medium, pressures, quantity and destination for a quotation.
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Match a 2WA model code
Part of the 2WA Series family.
View family overview →Installation Drawings & Technical Specifications
2WA internally piloted pressure differential, orifice, Cv and area specification
Helpful for Model Matching:
- Full 2WA code, label or installed valve photo
- Direct or internally piloted structure and inlet/outlet pressure
- Medium, viscosity, fluid and ambient temperature
- Port, PT/G/NPT thread, voltage and terminal/grommet entry
- Mounting envelope or drawing
- Quantity and destination; BOM accepted
- Match direct or internally piloted construction
- Match terminal or grommet drawing and the exact size row
- Use operating pressure differential, not proof pressure
- Send actual oil viscosity where the catalogue limits differ
Catalogue Technical Specifications
| Identity | 2/2, internally piloted, normally closed |
| Operating pressure differential | 0.05–1.0 MPa (10–150 psi as printed); positive minimum differential required |
| Proof pressure | 1.5 MPa (220 psi as printed); not operating pressure |
| 150 / port / Cv / area | Ø15 mm; 15=1/2; Cv 5.5; 100 mm² |
| 200 / port / Cv / area | Ø20 mm; 20=3/4; Cv 9.5; 170 mm² |
| 250 / port / Cv / area | Ø25 mm; 25=1; Cv 12.5; 220 mm² |
| Coil / power | CDA110/CLA110: AC 10 VA at 50 Hz, 8 VA at 60 Hz; DC 6.5 W |
| Medium / body / seal | Air, water, oil; brass body; standard FPM-F fluorine-rubber seal per English catalogue |
| Fluid and ambient temperature | Water 1–80°C; air −20–90°C; oil −10–80°C; ambient −20–70°C |
| Air and oil conditions | Air dew point ≤−20°C. Viscosity row: under 20 cSt; oil footnote: ≤50 cSt. Actual oil requirement needs confirmation. |
| Coil / voltage tolerance | Class F insulation; coil IP65; AC 50/60 Hz ±15%; DC ±10% |
Ordering Codes, Fit Verification & Specifications
Ordering code matching
Match each code segment
Code format
2WA[150/200/250]-[15/20/25]-[A/B/C/E/F]-[I if grommet]-[G/T if non-PT]Published valve code; mounting accessories are separate2WA150-15-A2WA200-20-B-I-G2WA250-25-C-T| 1Structure / size | 3Port | 4Voltage | 5Electrical entry | 6Thread |
|---|---|---|---|---|
| Direct 030/050; internally piloted 150/200/250. Both 2/2 normally closed. | 030: 06=1/8, 08=1/4; 050: 10=3/8, 15=1/2. Pilot 150-15, 200-20, 250-25. | A AC220V; B DC24V; C AC110V; E AC24V; F DC12V. | Blank terminal; I grommet, published lead length 0.5 m. | Blank PT; G G; T NPT. Voltage precedes electrical entry and thread. |
Quick check
Is this internally piloted 2WA normally open?
No. It is normally closed, like the direct-acting 2WA. Its distinction is internal pilot operation, larger orifices and a required minimum pressure differential of 0.05 MPa.
2WA150 / 200 / 250
Include this series in a project RFQ
2WA150 / 200 / 250 Add other models, quantities, photos, drawings, or a BOM. One request can cover several product groups.