Large Bore Valve Extensions
Standard Bore Valve Extension: Rigid
Used to facilitate air service where wheel, rim brake and other mounting conditions prevent ready access to the valve. They extend the valve mouth to the desired position for in?ating, gauging and deflating operations.
| Duncan Part No: | Bend Angle | Effective Length “L” | |
| (mm) | (inches) | ||
| 5020-24 | 90 | 152.4 | 6 |
| 5020-30 | 90 | 190.5 | 7.5 |
| 5020-32 | 90 | 203.2 | 8 |
| 5020-48 | 90 | 304.8 | 12 |
Large Bore Valve Extension: Semi Flexible
* Standard Accessories: 1149T valve core, 1450/4659 cap, 4590-5 lock nut and 725-2 hex nut (2 nos.)
| Duncan Part No. | Effective Length | |
| (mm) | (inches) | |
| 4461 DY | 114.30 | 4.50 |
| 4661 F | 152.4 | 6.00” |
| 4661 H | 203.2 | 8.00 |
|
461J 4661AB |
228.6 304.8 |
9.00 12.00 |
| 4661AJ | 482.6 | 19.00 |
| 4661BD | 609.6 | 24.00 |
| 4661BDX | 615.95 | 2425 |
Large Bore Valve Extension: Flexible
| Duncan Part No. |
Effective Length L (mm) |
| 4461-HA8 | 200 |
| 4661-HA14 | 350 |
| 4661-HA18 | 460 |
| 4661-HA20 | 560 |
| 4661-HA23 | 590 |
| 4661-HA236 | 600 |
| 4661-HA33 | 830 |
| 4661-HA39 | 780 |
Large Bore Valve Extension: Rigid
| Duncan Part No. | Effective Length | Total Length | |||
| (mm) | (inches) | (mm) | (inches) | ||
| 3906 | 31.75 | 1.25 | 50.8 | 2.00 m | |
| 3933 | 101.6 | 4.00 | 120.65 | 4.75 m | |
| 3959 | 114.3 | 4.50 | 133.35 | 5.25 | |
| 3995 | 141.275 | 5.562 | 166.675 |
6.562 These extensions are used for |
|
| 3993 | 184'15 | 7'25 | 2032 |
8'00 applications where extensions can |
|
| 3860 | 273'05 | 10'75 | 292' | 1“'50 be mounted in a straight line with the | |
| 3902 | 571.5 | 22.50 | 590.55 | 23.25 valve. Full-length plunger pm | |
| 3967 | 615.95 | 24.25 | 635 |
25.00 actuates core in existing- |
|
Thermo-Plasitc Hose Assembly
These hoses are subjected to extreme terrains mainly in the mining sectors and exposed to high temperatures and used to inflate OTR tyres to the required pressure. The hose and the and fittings are crimped perfectly, suitable to with stand pressure up to 15kg/cm2. These hoses are generally fitted on and used for in?ating OTR tyres mounted on 120 tons-170 tons capacity dumpers.
| Duncan Part No. | Effective Length | |
| (mm) | (inches) | |
| NDHOSE-4 | 101.6 | 4 |
| NDHOSE-6 | 152.4 | 6 |
| NDHOSE-12 | 304.8 | 12 |
| NDHOSE-16 | 406.4 | 16 |
| NDHOSE-18 | 457.2 | 18 |
| NDHOSE-41 | 1041.4 | 41 |