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The Bendix Air Brake Relay Valve takes a small control signal from the foot valve and delivers full reservoir air to the brake chambers on its axle. Placing that delivery close to the chambers cuts application and release time compared with piping all the air from the cab. Water or oil in the system can wear the valve's internal seals, so the Bendix 800485 is a natural replacement when moisture problems have been found. Fixing the dryer at the same time protects the new valve.
| Balance / Primary Service Port | Not applicable to this part |
| Body Configuration | 2 SUP / 4 DEL (2H + 2V) |
| Cautionary Note(s) | Not applicable to this part |
| Control / Secondary Service Port | 1/4-18 NPT |
| Control Port Orientation (CW from Front Face) | Not applicable to this part |
| Crack Pressure | 4.0 PSI |
| Delivery Port 1 | 1/2-14 NPT |
| Delivery Port 2 | 1/2-14 NPT |
| Delivery Port 3 | 3/8-18 NPT |
| Delivery Port 4 | 3/8-18 NPT (Plugged) |
| Delivery Port 5 | Not applicable to this part |
| Delivery Port 6 | Not applicable to this part |
| Delivery Port 7 | Not applicable to this part |
| Delivery Port 8 | Not applicable to this part |
| Exhaust Port | Dust Shield |
| Internal Supply Passage to Cover | Not applicable to this part |
| Market Indicator | Aftermarket New |
| Maximum Operating Temperature | 200 AdegF (93 AdegC) |
| Minimum Operating Temperature | -40 AdegF (-40 AdegC) |
| Mounting | Not applicable to this part |
| Mounting Bracket Direction | Not applicable to this part |
| Mounting Bracket Location | Not applicable to this part |
| Mounting Orientation (CW from Front Face) | Not applicable to this part |
| Supply Port 1 | 1/2-14 NPT |
| Supply Port 2 | 1/2-14 NPT (Plugged) |
| TMC Washer | RV040 |
| Country of Origin (Primary) | MX |
| UPC | 04068078307007 |
| VMRS Code | 013010009 |
| Brand | Part Number |
|---|---|
| BW800485 | |
| N/A | 102802N |
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