Black Fabricated Air Tees
Fabricated Air Valve Tees / PN16 / SDR11
Fabricated Air Valve Tee's are manufactured by machining PE100+ hollow bar into a fitting body that includes external reinforcement and then welding on CCTV pipe spigot ends in accordance with BS ISO 21307. Fabricated Air Valve Tee's feature long spigots for electrofusion or butt fusion joining and 1D and 2D bar code stickers for complete product traceability.
The main advantage with Fabricated Air Valve tees is regardless of the mainway size, the air offtake size can be small (DN80 offtake on a DN1800 Main). Traditional tees do not offer such large step changes, so require several reducers which take up precious height above the pipeline. The transition from the Tee to the flange connecting the isolation/air valve assembly is made using a standard Coupler and Flange adaptor onto the Tee's spigot outlet or if space is extremely tight, the tee can be fabricated with a flange adaptor butt welded directly to the offtake.
See an example of our fabricated air valves tees being used in a sewer rising main at Hong Kong International Airport here.
NOTE: The spigot ends must be prepared in accordance with the general installation instructions using a spigot mechanical peeler, 90% Isopropyl alcohol wipes.
| This table shows DN80 and DN100 offtakes, Larger DN150 & DN200 (dn180 & dn250) offtakes are available here. | |||||||||
| Larger sizes up to dn1000 are available in PN16 SDR11 rating, dimensions on request. | |||||||||
| PN16 SDR11 in smaller sizes < dn355 typically use moulded blue air valve tees. | |||||||||
| PN10 SDR17 fully complies with WSD PS, only where the engineer allows the use of PN10 fittings. | |||||||||
| Larger sizes up to dn2000 are available in PN10 SDR17 rating, dimensions on request. | |||||||||
| SDR17 PN10 | SDR11 PN16 | dn1 | dn2 | L | le1 | le2 | Z1 | Z2 | Availability in Hong Kong |
| - | P5316.41.250090 | 250 | 90 | 645 | 250 | 180 | 323 | 330 | 6-8 Weeks |
| - | P5316.41.250125 | 250 | 125 | 680 | 250 | 180 | 340 | 330 | 6-8 Weeks |
| - | P5316.41.315090 | 315 | 90 | 760 | 300 | 180 | 380 | 367.5 | 6-8 Weeks |
| - | P5316.41.315125 | 315 | 125 | 790 | 300 | 180 | 395 | 367.5 | 6-8 Weeks |
| P5314.41.355090 | P5316.41.355090 | 355 | 90 | 760 | 300 | 180 | 380 | 387.5 | 6-8 Weeks |
| P5314.41.355125 | P5316.41.355125 | 355 | 125 | 790 | 300 | 180 | 395 | 387.5 | 6-8 Weeks |
| P5314.41.450090 | P5316.41.450090 | 450 | 90 | 760 | 300 | 180 | 380 | 435 | 6-8 Weeks |
| P5314.41.450125 | P5316.41.450125 | 450 | 125 | 790 | 300 | 180 | 395 | 435 | 6-8 Weeks |
| P5314.41.500090 | P5316.41.500090 | 500 | 90 | 860 | 350 | 180 | 430 | 460 | 6-8 Weeks |
| P5314.41.500125 | P5316.41.500125 | 500 | 125 | 890 | 350 | 180 | 445 | 460 | 6-8 Weeks |
| P5314.41.560090 | P5316.41.560090 | 560 | 90 | 860 | 350 | 180 | 430 | 490 | 6-8 Weeks |
| P5314.41.560125 | P5316.41.560125 | 560 | 125 | 890 | 350 | 180 | 445 | 490 | 6-8 Weeks |
| P5314.41.630090 | P5316.41.630090 | 630 | 90 | 860 | 350 | 180 | 430 | 525 | 6-8 Weeks |
| P5314.41.630125 | P5316.41.630125 | 630 | 125 | 890 | 350 | 180 | 445 | 525 | 6-8 Weeks |
