National Steel Car (NSC)
An NSC Pressure Differential Hopper Car is a specialized covered hopper railcar manufactured by National Steel Car that unloads dry bulk commodities using compressed air rather than gravity alone.
National Steel Pressure Differential Car
Typical 3-Hopper Arrangement Replacement Parts
| Number | Part Name | Part Number |
|---|---|---|
| 7 | 5″ Pipe | P5C40-91-00 |
| 13 | 3″ Air Manifold | PD3AAM17 |
| 25 | 3″ Square Blind Flange Assembly | PD3BF02A |
| 27 | 2″ Hose | H2215R |
| 30 | 5″ U-Bolt | SP8466 |
| 38 | 3″ U-Bolt | PD3UBCZ |
| 47 | Gauge Box | PDGB2A |
| 48 | Pressure Gauge | PD1010GB |
Air piping is aluminum. Product piping is carbon steel. Different materials available by request. Gaskets listed are white FDA. Different gasket materials are available if requested.
All photos are courtesy of National Steel Car — Hamilton, Ontario
www.steelcar.com
Outlet 1 & 2
| Number | Part Name | Part Number |
|---|---|---|
| 1 | Aerator Hopper | PD1AHNP |
| 2 | 5″ 5″ Discharge Pipe | PD5CDT04 |
| 2A | 5″ Discharge Pipe | PD5CDT02 |
| 3 | 3″ Aerator Pad | PD1AP3C23 |
| 4 | 4½″ Blind Flange Assembly | PD545CCPA |
| 5 | 5″ x 8″ Discharge Lateral | PD5DDL01 |
| 8 | 5″ Nipple Grooved | N58CVG |
| 9 | 5″ Y-Pipe | PDD5Y |
| 10 | 5″ Pipe Bend | PD5CPB04 |
| 14 | 5″ Butterfly Valve | UBV5APCA |
| 17 | 5″ Aluminum Dust Cap w/Regular Arms | PD5ADC2A |
| 17A | 5″ Plastic Dust Cap w/Regular Arms | PD5PDC2A |
| 17B | 5″ Aluminum Dust Cap w/Crossover Arms | PD5ALC2A |
| 17C | 5″ Plastic Dust Cap w/Crossover Arms | PD5PLC2A |
| * | 5″ Dust Cap Gasket | PD5DCGW |
| 20 | 5″ Compression Coupling | PD556CC8 |
| 21 | 2″ Ball Valve | SSVMH2.A9-2 |
| 22 | 2″ Hose Barb | HB2A |
| 23 | 5″ Pipe Clamp | PD577CA |
| 27 | 2″ Hose | H2215R |
| * | Discharge Pipe Clip | PD5CDTCL |
| * | 5″ U-Bolt | SP8466 |
| * | Shackle And Chain | PD5YCSA |
| * | Aerator Hopper Bolt Kit | PDPADKIT2 |
* Parts not shown above
Outlet 3
| Number | Part Name | Part Number |
|---|---|---|
| 1 | Aerator Hopper | PD1AHNP |
| 2 | 5″ Discharge Pipe | PD5CDT04 |
| 2A | 5″ Discharge Pipe | PD5CDT02 |
| 3 | Aerator Pad | PD1AP3C23 |
| 6 | 5″ Discharge Lateral | PD5DDL01F |
| 11 | 3″ Flanged Tee | PD3ABT08 |
| 12 | 3″ Flanged Elbow | PD3A90F14 |
| 14 | 5″ Butterfly Valve | UBV5APCA |
| 15 | 3″ Butterfly Valve | WBV3A |
| 16 | 3″ Air Inlet Assembly | PD3A90F16 |
| 18 | 3″ Adapter | K3AFTMA |
| 19 | 3″ Aluminum Dust Cap w/Regular Arms | PD3ADC2A |
| 19A | 3″ Plastic Dust Cap w/Regular Arms | PD3PDC2A |
| 19B | 3″ Aluminum Dust Cap w/Crossover Arms | PD3ALC2A |
| 19C | 3″ Plastic Dust Cap w/Crossover Arms | PD3PLC2A |
| 20 | 5″ Compression Coupling | PD556CC8 |
| 21 | 2″ Ball Valve | SSVMH2.A9-2 |
| 22 | 2″ Hose Barb | HB2A |
| 24 | 3″ Flange Gasket | PD3SG02 |
| 26 | 3″ Check Valve | KSVA1011FG |
| 27 | 2″ Hose | H2215R |
| 36 | 3″ Butterfly Valve | UBV3APCA |
| 38 | 3″ U-Bolt | PD3UBCZR |
| * | 3″ Dust Cap Gasket | PD3DCGW |
| * | 4½″ Blind Flange Assembly | PD545CCPA |
| * | Discharge Pipe Clip | PD5CDTCL |
| * | Aerator Hopper Bolt Kit | PDPADKIT2 |
* Parts not shown above
Car Roof
| Number | Part Name | Part Number |
|---|---|---|
| 39 | 20″ PD Nozzle | PD20HCRS |
| 40 | CAM Lever | CLCZKA |
| 41 | Hinge Pin | CLP127CA |
| 42 | 20″ Hatch Cover | PD20HC1008A |
| 43 | Safety Catch | CLSFCZK |
| 44 | Nozzle Gasket | TTNG20FDA |
| 45 | Plastic Safety Vent Housing | QI261DGA |
| 46 | 17 psi Pressure Relief Valve | PDPRV2 |
| 49 | 22 psi Rupture Disc | RD22PDST |
| 50 | 14.7 psi Pressure Relief Valve | PDPRV1 |
Cam Lever Assembly Components
| Number | Part Name | Part Number |
|---|---|---|
| * | Cam Lever | CLCZ |
| * | ½″ Clevis Pin | CLP12275CZ |
| * | Clevis Pin | CLP12225CZ |
| * | ½″ – 20″ Clamp Stud | CLCSZK |
| * | ½″ Pal Nut | RFPN |
| * | Latch Pin | CLLPCZK |
| * | Flat Washer SAE | A20W |
| * | ½″ – 13″ Jam Nut | JN12 |
| * | 1/8″ Cotter Pin | RF16271 |
* Parts not shown above
All photos are courtesy of National Steel Car — Hamilton, Ontario
www.steelcar.com
Blowdown
| Number | Part Name | Part Number |
|---|---|---|
| 28 | 1/4″ Hose | H14LD |
| 32 | Vent Assembly | PD3SVA02 |
| 33 | Valve Handle Extension Assembly | WBV3CSH03A |
| 34 | 3″ Pipe Elbow | PD3A90F15 |
| 35 | 1 1/2″ Vacuum Relief Valve | VVP15S4102A |
| 51 | 3″ Butterfly Valve | WBV3A |
