This popular OPW top loading arm is specifically designed for those applications where smooth handling and wide working range is required. Especially useful for top loading of railcars or multi-compartment tank trucks.
The boom, supported by a high quality pillow block, allows for maximum flexibility and smooth operation combined with a significant longer reach.
Both boom and arm can be folded back against the gantry for convenient, compact storage away from the traffic flow.
Commonly used to handle high flow rates and withstand rough usage in railcar and tank-truck loading applications. A stable construction is guaranteed by the supported boom which allows optional Accessories to be mounted.
Materials of construction
| Inlet swivel | Carbon steel |
| Intermediate swivel | Ductile Iron |
| Drop tube swivel | Aluminium |
| Swivel seals | Viton® GFLT |
| Boom arm | Carbon Steel |
| Primary arm | Aluminium |
| Drop tube | Aluminium |

| Size | Dimensions (in mm) | ||||
| D | G | R | S | T | |
| 2” / dn50 | 2200 | 1500 | 381 | 1800 | 2500 |
| 3” / dn80 | 2200 | 1500 | 406 | 1800 | 2500 |
| 4” / dn100 | 2200 | 1500 | 451 | 1800 | 2500 |
| 6”/ dn150 | 2200 | 1500 | 629 | 1800 | 2500 |
Other Dimensions available on request

| Part number | Description |
| 3002K-20-VG | 2”/dn50 swivel Seal Replacement Kit [Tab], Viton® GFLT |
| 3002K-30-VG | 3”/dn80 swivel Seal Replacement Kit [Tab], Viton® GFLT |
| 3002K-40-VG | 4”/dn100 swivel Seal Replacement Kit [Tab], Viton® GFLT |
| 3002K-60-VG | 6”/dn150 swivel Seal Replacement Kit [Tab], Viton® GFLT |
| 6402RK-0202 | 2”/dn50 loading valve repair kit, Viton® |
| 6402RK-0302 | 3”/dn80 loading valve repair kit, Viton® |
| 6402RK-0402 | 4”/dn100 loading valve repair kit, Viton® |
| Article number | Description |
| 466-AL40 | Drip pan, for 4”/dn100 arm |
| 466-AL60 | Drip pan, for 6”/dn150 arm |
| 464RP-AL30 | T-deflector, for 3”/dn80 arm |
| 464RP-AL40 | T-deflector, for 4”/dn100 arm |
| 788L-0040 | Lock down device, right hand configuration |
| 788LLH-0045 | Lock down device, left hand configuration |
Additional Accessories include: Level detection; Position detection; Working position locking device, Parking lock, Automated or manual ball valve, Telescopic Drop tube and many more, please consult factory for information and availability.
OPW Loading Valve
Materials of construction
| Inlet swivel | Carbon steel |
| Intermediate swivel | Ductile Iron |
| Drop tube swivel | Aluminium |
| Swivel seals | Viton® GFLT |
| Boom arm | Carbon Steel |
| Primary arm | Aluminium |
| Drop tube | Aluminium |

| Size | Dimensions (in mm) | ||||
| D | G | R | S | T | |
| 2” / dn50 | 2200 | 1500 | 381 | 1800 | 2500 |
| 3” / dn80 | 2200 | 1500 | 406 | 1800 | 2500 |
| 4” / dn100 | 2200 | 1500 | 451 | 1800 | 2500 |
| 6”/ dn150 | 2200 | 1500 | 629 | 1800 | 2500 |
Other Dimensions available on request

| Part number | Description |
| 3002K-20-VG | 2”/dn50 swivel Seal Replacement Kit [Tab], Viton® GFLT |
| 3002K-30-VG | 3”/dn80 swivel Seal Replacement Kit [Tab], Viton® GFLT |
| 3002K-40-VG | 4”/dn100 swivel Seal Replacement Kit [Tab], Viton® GFLT |
| 3002K-60-VG | 6”/dn150 swivel Seal Replacement Kit [Tab], Viton® GFLT |
| 6402RK-0202 | 2”/dn50 loading valve repair kit, Viton® |
| 6402RK-0302 | 3”/dn80 loading valve repair kit, Viton® |
| 6402RK-0402 | 4”/dn100 loading valve repair kit, Viton® |
| Article number | Description |
| 466-AL40 | Drip pan, for 4”/dn100 arm |
| 466-AL60 | Drip pan, for 6”/dn150 arm |
| 464RP-AL30 | T-deflector, for 3”/dn80 arm |
| 464RP-AL40 | T-deflector, for 4”/dn100 arm |
| 788L-0040 | Lock down device, right hand configuration |
| 788LLH-0045 | Lock down device, left hand configuration |
Additional Accessories include: Level detection; Position detection; Working position locking device, Parking lock, Automated or manual ball valve, Telescopic Drop tube and many more, please consult factory for information and availability.
OPW Loading Valve
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