SMC AW20-N02BC-2Z-D Filter Regulator, 1/4" NPT, Metal Bowl, Auto Drain
SMCThe SMC AW20-N02BC-2Z-D is a size 20 modular filter regulator combination unit with 1/4" NPT ports. It integrates air filtration and pressure regulation in a single body to save space and piping, and this configuration ships with a mounting bracket, a metal bowl, and an N.C. (normally closed) float-type auto drain. It is set for the standard 0.05 to 0.85 MPa range (approximately 7 to 123 psi) with a relieving-type regulator.
This is the current AW-D generation body. The metal bowl adds durability for tougher environments, the N.C. auto drain discharges condensate automatically while keeping the drain port closed when the unit is not pressurized, and a manual drain cock is also included. The regulator locks by pushing down on the adjustment knob, and the product label reads in psi and °F.
Key Specifications
| Model | AW20-N02BC-2Z-D |
| Type | Filter regulator (combination unit) |
| Series | AW-D (D-series modular) |
| Body Size | 20 |
| Port Size | 1/4" NPT |
| Bracket | Included (with bracket) |
| Auto Drain | N.C. (normally closed) float type, drain port closed when not pressurized |
| Bowl | Metal bowl |
| Set Pressure Range | 0.05 to 0.85 MPa (approx. 7 to 123 psi) |
| Drain Cock | Included |
| Exhaust Mechanism | Relieving type |
| Pressure Gauge | Without gauge |
| Backflow Function | Without backflow function |
| Flow Direction | Left to right |
| Unit Label | psi, °F; gauge MPa / psi dual scale |
Filtration rating, max operating pressure, proof pressure, and temperature ranges follow the standard AW-D series datasheet. Confirm exact values against the SMC datasheet for your application.
Part Number Breakdown: AW20-N02BC-2Z-D
| AW | Filter regulator (combination unit) |
| 20 | Body size 20 |
| N | NPT thread type |
| 02 | 1/4" port size |
| B | With bracket |
| C | N.C. (normally closed) float-type auto drain |
| 2 | Metal bowl |
| Z | Unit label psi, °F; gauge MPa / psi dual scale |
| D | D-series body (current generation) |
Typical Applications
- Single-unit air preparation combining filtration and regulation to save space and piping
- Installations that call for a durable metal bowl in higher-temperature or tougher environments
- Circuits where automatic condensate draining is preferred, using the N.C. float auto drain
- Bracket-mounted air prep on 1/4" NPT lines feeding pneumatic equipment
Maintenance Parts
| Valve Assembly | AW24P-060AS |
| Filter Element | AF20P-060S |
| Diaphragm Assembly | AR24P-150AS |
| Bowl O-ring | C2SFP-260S |
| Bracket Assembly | AW23P-270AS |
| Bowl Assembly (metal) | AD27-2-A |
Replacing an AW20-N02BC-2Z
The AW20-N02BC-2Z-D is the current AW-D generation of this filter regulator, and it is the exact, direct replacement for the legacy AW20-N02BC-2Z. SMC maintains panel-mount interchangeability across the generations: the panel mounting pitch carries over, and brackets and set nuts are common to the existing and new products.
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Legacy Part
AW20-N02BC-2Z
Prior generation
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→ |
Current Replacement
AW20-N02BC-2Z-D
Current AW-D body
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The connection, configuration, and mounting all carry over, so it drops into an existing AW20-N02BC-2Z installation without rework:
- Same 1/4" NPT connection and left-to-right flow direction
- Same bracket, N.C. auto drain, and metal bowl configuration
- Interchangeable panel-mount pitch; brackets and set nuts common across generations
- Same 0.05 to 0.85 MPa relieving regulation and psi / °F labeling
If you are transitioning a fleet of older units, standardize your spares inventory on the current AW-D maintenance parts going forward.
Frequently Asked Questions
It is a filter regulator combination unit. It filters the compressed air and regulates it to a stable, adjustable downstream pressure in a single body, which saves space and piping compared with separate filter and regulator units.
It uses a durable metal bowl with an N.C. (normally closed) float-type auto drain, which discharges condensate automatically and keeps the drain port closed when the unit is not pressurized. A manual drain cock is also included.
It includes a mounting bracket. This configuration ships without a pressure gauge.
Yes. It is the current AW-D generation and the exact, direct replacement for the legacy AW20-N02BC-2Z, with the same porting, bracket, N.C. auto drain, metal bowl, pressure range, and psi / °F labeling.
The SMC AW20-N02BC-2Z-D is distributed by Automation Distribution, an authorized SMC distributor. For application help, cross-references from legacy AW part numbers, or quantity pricing, contact our team at 1-888-600-3080.
- Body Size:
- 20
- With Backflow Function:
- Without Backflow Function
- Thread Type:
- NPT
- Port Size:
- 1/4
- Bracket:
- With Bracket
- Float Type Auto Drain:
- N.C. (Normally Closed), Drain Port Closed When Not Pressurized
- Digital Pressure Switch:
- Without Digital Pressure Switch
- Pressure Gauge/Mounting Option:
- Without Pressure Gauge
- Set Pressure:
- 0.05 to 0.85 MPa Setting
- Bowl:
- Metal Bowl
- Drain Port Option a:
- With Drain Cock
- Exhaust Mechanism:
- Relieving Type
- Flow Direction:
- Left to Right
- Drain Port Option b:
- Drain Cock Without Barb Fitting (For 6 x 4 Nylon Tube)
- Unit:
- psi, degF
- Made To Order:
- Standard