Trinity I/ Thrall
A Trinity / Thrall Pressure Differential Hopper Car is a covered hopper railcar engineered to unload dry bulk commodities using compressed air rather than gravity alone. Originally built by Thrall Car Manufacturing Company and later under Trinity Industries ownership, these cars are commonly found in plastic resin, cement, food-grade, and chemical service.
Trinity/Thrall Pressure Differential Car
Typical 5-Hopper Arrangement Replacement Parts
Common Replacements
| Number | Part Name | Part Number |
|---|---|---|
| 58 | 3″ Pipe (In Feet) | P3A40 |
| 59 | 5″ Pipe (In Feet) | P5A40 |
| 60 | Blind Flange Assembly | PD3BF02A |
| 63 | 3″ x 6″ Compression Coupling | PD356CC8 |
| 64 | Air Manifold Assembly “A” End | PD3AAM01 |
| 65 | Air Manifold Assembly “B” End | PD3AAM02 |
| 68 | Gauge Box Assembly | PDGB2A |
| * | ½″ – 13″ x 3″ U Bolt W/Nuts | SP8465 |
| * | ½″ – 13″ x 5″ U Bolt W/Nuts | SP8466 |
* Parts not shown above
Pressure Gauge Replacements
| Number | Part Name | Part Number |
|---|---|---|
| 66 | 0-30psi Liquid Filled, Back Connection W/Flange | PD4LFGB |
| * | 0-30psi Dry, Back Connection | PD1010GB |
| * | 0-30psi Dry, Lower Connection | PD1010GL |
| * | 0-30psi Silicone Filled, Back Connection W/Flange | PD4LFGFB |
| * | 0-30psi Silicone Filled, LINE Back Connection | W1212L |
| * | 0-30psi Silicone Filled, TANK Back Connection | W1212T |
* Parts not shown above. Piping is aluminum. Different materials available by request. Gaskets listed are white FDA. Different gasket materials are available if requested.
Outlet 1 & 2
| Number | Part Name | Part Number |
|---|---|---|
| 1 | Aerator Hopper Assembly (left) | PD1AHLA |
| 4 | 5″ Discharge Lateral w/ Groove | PD5ADL02 |
| 5 | 5″ Pipe Bend Assembly | PD5APB01 |
| 5A | 5″ Pipe Bend Assembly | PD5APB02 |
| 6 | 5″ Y Pipe | PDA5Y |
| 7 | 5″ Butterfly Valve | WBV5A |
| 10 | 5″ Aluminum Dust Cap Assembly | PD5ADCA |
| 10A | 5″ Plastic Dust Cap Assembly | PD5PDCA |
| 10B | 5″ Aluminum Dust Cap Assembly w/Crossover Arms | PD5ALCA |
| 10C | 5″ Plastic Dust Cap Assembly w/Crossover Arms | PD5PLCA |
| 11 | 5″ x 4″ Long Compression Coupling | PD554CC8 |
| 12 | 5″ Swivel Pipe Fitting | PD577CA |
| 13 | 5″ x 8″ Long Compression Coupling | PD558CC8 |
| 14 | Shackle And Chain | PD5YCSA |
| 17 | 2″ Air Hose (in feet) | H2R |
| 18 | 2″ Ball Valve | VBLF20B |
| 19 | 2″ Hose Barb | HB2A |
| 21 | Aerator Hopper Assembly (right) | PD1AHRA |
| 52 | 2″ Pipe Nipple | N23A |
| * | 2″ Hose Clamps | HCP0427692 |
* Parts not shown above. 5 (PD5APB01) does not require welding. 5A (PD5APB02) requires welding.
All photos are courtesy of The Andersons — Maumee, OH
www.andersonsinc.com
Outlet 3 & 4
| Number | Part Name | Part Number |
|---|---|---|
| 1 | Aerator Hopper Assembly (left) | PD1AHLA |
| 3 | 5″ Discharge Lateral | PD5ADL01 |
| 7 | 5″ Butterfly Valve | WBV5A |
| 13 | 5″ x 8″ Long Pipe Coupling | PD558CC8 |
| 17 | 2″ Air Hose (in feet) | H2R |
| 18 | 2″ Ball Valve | VBLF20B |
| 19 | 2″ Hose Barb | HB2A |
| 41 | 5″ Discharge Tube | PD5ADT01 |
| 43 | 6½″ Cover Plate Assembly | PD5ACPA |
| 43A | 6″ Cover Plate Assembly | PD545ACPA |
| 52 | 2″ Pipe Nipple | N23A |
| 62 | Aerator Pad | PD1AP3C23 |
| * | 2″ Pipe Plug | TC2P |
| * | Aerator Hopper Bolt Kit | PD1PADKIT1 |
| * | 2″ Hose Clamps | HCP0427692 |
* Parts not shown above
All photos are courtesy of The Andersons — Maumee, OH
www.andersonsinc.com
Outlet 5
| Number | Part Name | Part Number |
|---|---|---|
| 1 | Aerator Hopper Assembly (left) | PD1AHLA |
| 2 | 5″ Discharge Lateral w/ Reducer | PD5ADL01F |
| 7 | 5″ Butterfly Valve | WBV5A |
| 8 | 3″ Butterfly Valve | WBV3A |
| 9 | 3″ Check Valve | DV3030SQ-IMP |
| 11 | 3″ Aluminum Dust Cap Assembly | PD3ADC2A |
| 11A | 3″ Plastic Dust Cap Assembly | PD3PDC2A |
| 11B | 3″ Aluminum Dust Cap Assembly w/Crossover Arms | PD3ALCA |
| 11C | 3″ Plastic Dust Cap Assembly w/Crossover Arms | PD3PLC2A |
| 13 | 5″ x 8″ Long Compression Coupling | PD558CC8 |
| 15 | 3″ Belled Tee | PD3ABT02 |
| 16 | 3″ Flanged 90° Elbow | PD3A90F01 |
| 16A | 3″ Flanged 45° Elbow | PD3A45F01 |
| 16B | 3″ Flanged 90° Elbow w/Kam Groove | PD3A90F01A |
| 16C | 3″ Flanged 45° Elbow w/Kam Groove | PD3A45F01A |
| 16D | 3″ Flanged 90° Elbow w/Pipe | PD3A90F02 |
| 17 | 2″ Air Hose (in feet) | H2R |
| 18 | 2″ Ball Valve | VBLF20B |
| 19 | 2″ Hose Barb | HB2A |
| 20 | 3″ Kam Weld Fitting | PT30AWSAL |
| 52 | 2″ Pipe Nipple | N23A |
| 53 | 5″ Round Flange | PD5AF |
| 54 | 3″ Round Flange | PD3ARF |
| 55 | 3″ Square Flange | PD3ASF |
| 56 | 3″ Square Flange Gasket | PD3SG02 |
| 62 | Aerator Pad | PD1AP3C23 |
| * | 3″ Dust Cap Gasket | PD3DCGW |
| * | 2″ Pipe Plug | TC2P |
| * | Bolt Kit | PD1PADKIT1 |
| * | 2″ Hose Clamp | HCP0427692 |
| * | 3″ Round Flange Gasket | FG478602 |
| * | 5″ Round Flange Gasket | PD5FG77802 |
* Parts not shown above
Car Roof
| Number | Part Name | Part Number |
|---|---|---|
| 22 | 17 psi Pressure Relief Valve | PDPRV2 |
| 23 | Plastic Safety Vent Housing (Female) | PDSVF550FA |
| 23A | Plastic Safety Vent Housing (Male) | PDSVF550MA |
| 24 | Blind Flange Assembly | PD3SPBF02A |
| 25 | 3″ Air Inlet Cap | PD3AIC |
| 26 | 20″ Stainless Ring | PD20HCRS |
| 27 | Nozzle Gasket | TTNG20FDA |
| 28 | 20″ Aluminum Cover Assembly | PD20HC1008A |
| 29 | Cam Lever Assembly | CLCZKA |
| 32 | 14.7 psi Pressure Relief Valve | PDPRV1 |
| 33 | 20″ Aluminum Cover Gasket | PD20HCG08 |
| 69 | 17.5 – 22 psi Rupture Disk | RD22PDST |
| 70 | Safety Catch | CLSFCZK |
| * | Cover Wearplate | A16168 |
Cam Lever Assembly Components
| Number | Part Name | Part Number |
|---|---|---|
| 44 | Latch Pin | CLLPCZK |
| 45 | ½″ x 2-¼″ Clevis Pin | CLP12225CZ |
| 46 | Clamp Stud | CLCSCZK |
| 47 | ½″ Pal Nut | RFPN |
| 48 | ½″ x 2-3/4″ Clevis Pin | CLP12275CZ |
| 49 | 1/8″ x 3/4″ Cotter Pin | RF16271 |
| 50 | Cam Lever Latch | CLCZ |
| 51 | ½″ Jam Nut | JN12 |
| 57 | ½″ Flat Washer | A20W |
* Parts not shown above
All photos are courtesy of The Andersons — Maumee, OH
www.andersonsinc.com
Standpipe
| Number | Part Name | Part Number |
|---|---|---|
| 8 | 3″ Butterfly Valve | WBV3A |
| 30 | 3/4″ 90° Elbow | E34A90BW |
| 31 | 2″ 90° Elbow | E2A90BW |
| 32 | 14.7 PSI Safety Relief Valve | PDPRV1 |
| 33 | 3/4″ Vacuum Breaker | VV34B102A |
| 34 | 3″ Standpipe (113″ Long) | PD3ASP100 |
| 34A | 3″ Standpipe (89″ Long) | PD3ASP200 |
| 35 | Gasket | FG47802 |
| 36 | Double Flange Adapter | DF3A15A |
| 37 | ¼″ Close Nipple | N025C |
| 38 | ¼″ Female Tee | T025F |
| 39 | ¼″ Plug | TC025P |
| 40 | 3″ Flanged 90° Elbow | PD3A90F03 |
| 66 | ¼″ Hose Compression Fitting | HCF14B |
| 67 | ¼″ Tubing (In Feet) | H14LD |
