DUAL WALL ROUND DUCT AND FITTINGS CONSTRUCTION STANDARDS

Transcription

1 ir istribution orporation ouble Wall ROUN U W ROUN UT N FITTINGS ONSTRUTION STNRS Outer Shell Positive Pressure Gauge selection for galvanized (STM 653). Fittings are manufactured with standing seam, welded seam, spot welded, or button punched locked construction. ll Spiral uct and Fittings are manufactured in accordance with applicable SMN, SHRE and SPI standards. SMN ow Pressure uct Standards (Up to 2 W.G. Static Pressure) Gauge Schedule Gauge Schedule Size ia. Spiral Pipe Size ia. Fittings Fittings conform to SMN seal lass construction SMN High Pressure uct Standards (Up to 10 W.G. Static Pressure) Gauge Schedule Gauge Schedule Size ia. Spiral Pipe Size ia. Fittings Fittings conform to SMN seal lass construction Inner Shell Gauge selection for inner shell. Standard material for the inner shell of spiral pipe is perforated steel (STM 653), with 3/32 holdes on 3/16 staggered centers for a free area of 23%. Standard material for the inner shell of fittings is solid steel. uct ia. Inner Shell Fittings Standard Insulation is 1 thick, 1 pound per cubic foot density, with a thermal conductivity (STM 75 F mean temperature of 0.27 (TU-in./hr.ft.2 F) Surface burning characteristics (STM E 84, U 723) 25 flame spread 50 smoke developed

2 ouble Wall Round ir istribution orporation imensional ode & Ordering Information IMENSIONING OE ll dimensions are in inches, all angles are in degrees -Main barrel inlet diameter - Main barrel outlet diameter or - ranch tap diameter (Note: On tee and lateral fittings with two taps, is the branch closest to the inlet of the fitting. On cross fittings, is the larger of the two taps. R - enter ine Radius V - ody length of fitting H - See oloss Tee ORERING Specify type of fittings and list the following dimensions: EOWS -, R TEES -,, (, ) TERS -,, (, ) ROSSES -,,, () ESSORIES - s Noted ll fittings, unless noted, are sized as a male part on each end for a slip joint assembly with spiral pipe. For flanged fittings see connectors detail for all dimensioning.

3 ir istribution orporation ouble Wall Round EOWS 90 5-P EOW E P EOW E R= P MITRE EOW E290 / E290V No. of vanes USTOM EOW XE R= + 2 *SPEIFY (Elbow ngle & Radius of enterline

4 ir istribution orporation ouble Wall Round STRIGHT TEES STRIGHT TEE T REUING TEE TR = - MINIMUM TEE ROSS TX REUING TEE ROSS TXR TRX = - MINIMUM

5 ir istribution orporation ouble Wall Round ONI TEES ONI TEE T REUING ONI TEE TR = - MINIMUM 5" + 2 5" ONI TEE ROSS TX + 2 REUING ONI TEE ROSS TXR + 2 = - MINIMUM + 2 5" " " + 2 5" + 2

6 ir istribution orporation ouble Wall Round STRIGHT TER 45 TER 45 REUING TER R = - MINIMUM [( + 2) X 1.414] + 8 [( + 2) X 1.414] TER ROSS X 45º X 45 REUING TER ROSS XR = - MINIMUM [( + 2) X 1.414] [( + 2) X 1.414]

7 ir istribution orporation ouble Wall Round OOSS TEES OOSS TEE T + 2 REUING OOSS TEE TR = - MINIMUM + 2 H 2 H , H 3 thru 8 9 thru H + 6 X= 4" H + 6, H 3 thru 8 9 thru thru thru and up and up 12 OOSS TEE ROSS TX REUING OOSS TEE ROSS TXR = - MINIMUM + 2 H + 2 H H H H H, H 3 thru 8 9 thru thru and up , H 3 thru 8 9 thru thru and up

8 ir istribution orporation ouble Wall Round MISENEOUS ONENTRI REUER R V = - MINIMUM EENTRI REUER RE V V V = - MINIMUM RETNGUR TO ROUN RTR ETO ROUN RSQ EN P E V + 2 X ( + 2) X ( + 2) RETNG

9 ir istribution orporation ouble Wall Round MISENEOUS OFFSET Z ºOFFSET V STNR = 2X ROUN TO ROUN ZR + 2 V Z T V Z + 2 Y Y RNH Y Y TPERE Y RNH YR YR UHE TEE TV No. of vanes REUING UHE TEE TVR No. of vanes V = -12 V= " 6" = - MINIMUM 6" 6" = - MINIMUM

10 ir istribution orporation ouble Wall Round TPS STRIGHT TP PT + 2 ONI TP PT + 2 TER TP45 P + 2 OOSS TP PT H 3 thru 8 9 thru thru and up H + 2 X H RST-R RETNGUR TPS RST-TI RST-TO = PIPE IMETER = PIPE IMETER = PIPE IMETER & RE INSIE IMENSIONS

11 ir istribution orporation ouble Wall Round ONNETORS Slip Fit onnection ccuflange onnection 3/8" 1-3/8" Sealant UFNGE ORERING NOTES: Fittings - The bead is shown for reference only. ll fitting connection dimensions increase 2 1/ to accomodate ccuflange. Spiral Pipe - ustomer specified duct length shall be flange face to flange face dimensions.

12 ouble Wall Round ir istribution orporation FITTINGS HRT E90 E45 E290/E290V XE R RE T TR TX TXR TVR TV T TR TX TXR V Y T TR TX TXR RTR- RTR-N R X XR Z ST ST ST HEST T ES RST-R RTS-TI RST-TO 45RST-R 45RTS-TI 45RST-TO