DDA Direct Drive Tube Axial Duct Fans

For clean, dry air with a maximum temperature of 100˚F (40˚C).
Cast aluminum blades are standard.
TEFC motors are standard.

Non-stock, made-to-order products are non-returnable and cannot be cancelled.

BLADE DIAMETER		MODEL #		RPM	H.P.	dBA @ 5 ft.	CFM @ STATIC PRESSURE
		SINGLE PHASE	THREE PHASE	RPM	H.P.	dBA @ 5 ft.	0"	1/4"	1/2"	3/4"	1"	1 1/4"
	12"	DDA12T10033B	DDA12T30033B*	1750	1/3	49	1450	1230	313	-	-	-
	12"	DDA12T10200A	DDA12T30200A*	3450	2.0	72	2860	2740	2640	2530	2410	2140
	14"	DDA14T10033C	DDA14T30033C*	1140	1/3	53	1450	443	-	-	-	-
	14"	DDA14T10033B	DDA14T30033B*	1750	1/3	60	2220	1920	1350	512	185	-
	15"	DDA15T10033B	DDA15T30033B*	1750	1/3	65	2630	2320	1840	-	-	-
	16"	DDA16T10033C	DDA16T30033C*	1140	1/3	56	2150	1640	340	-	-	-
	16"	DDA16T10050B	DDA16T30050B*	1750	1/2	66	3300	3040	2690	1750	825	370
	18"	DDA18T10033C	DDA18T30033C*	1140	1/3	59	2990	2450	845	-	-	-
	18"	DDA18T10075B	DDA18T30075B*	1750	3/4	71	4590	4280	3910	3260	1750	-
	20"	DDA20T10033C	DDA20T30033C*	1140	1/3	60	4530	3180	739	-	-	-
		DDA20T10100B	DDA20T30100B*	1750	1.0	76	6950	6155	5300	3225	1860	853
		DDA20T10200B	DDA20T30200B*	1750	2.0	78	7893	7486	6506	5336	4060	2513
	24"	DDA24T10050C	DDA24T30050C*	1140	1/2	52	4990	4180	2920	1210	-	-
		DDA24T10100C	DDA24T30100C*	1140	1.0	57	6520	5630	4380	1920	813	-
		DDA24T10150C	DDA24T30150C*	1140	1.5	61	8710	7630	6020	2380	720	-
		DDA24T10150B	DDA24T30150B*	1750	1.5	65	7660	7160	6620	5980	5170	4020
		DDA24T10200B	DDA24T30200B*	1750	2.0	66	9210	8660	8090	7470	6660	5540
		DDA24T10300B	DDA24T30300B*	1750	3.0	71	11500	10900	10200	9490	8680	7540
	30"	DDA30T10100C	DDA30T30100C*	1140	1.0	57	8680	7480	6000	3630	1550	-
		DDA30T10150C	DDA30T30150C*	1140	1.5	61	11800	10600	8950	6070	3070	-
			DDA30T30200C*	1140	2.0	62	12780	11490	9850	7320	3620	-
		-	DDA30T30300C*	1140	3.0	68	16400	14700	12700	6840	4120	-
		DDA30T10300B	DDA30T30300B*	1750	3.0	69	13300	12550	11700	11000	9980	8830
		DDA30T10500B	DDA30T30500B*	1750	5.0	73	18200	17350	16550	15200	14600	13880
		DDA30T10750B	DDA30T30750B*	1750	7.5	77	22600	21980	20650	19030	18300	17550
	34"	-	DDA34T30200C*	1140	2.0	64	15300	13800	12000	10490	6070	3440
		-	DDA34T30300C*	1140	3.0	67	19300	17700	15600	12900	8620	6110
		-	DDA34T30500C*	1140	5.0	70	22500	20550	18300	13100	10200	6860
		DDA34T10500B	DDA34T30500B*	1750	5.0	76	18700	17820	16800	15700	14600	13660
		DDA34T10750B	DDA34T30750B*	1750	7.5	76	23500	22600	21500	20400	19300	18160
		-	DDA34T31000B*	1750	10.0	78	27800	26750	25500	24250	23300	22150
		-	DDA34T31500B*	1750	15.0	81	31300	30300	29100	28250	26600	25130
	36"	-	DDA36T30200C*	1140	2.0	66	14000	12400	10600	8390	5530	-
		-	DDA36T30300C*	1140	3.0	67	19400	17550	15600	13100	8980	6450
		-	DDA36T30500C*	1140	5.0	68	23600	22050	19700	16850	11700	9220
		DDA36T10500B	DDA36T30500B*	1750	5.0	70	16200	15200	14200	12800	12200	11050
		-	DDA36T30750C*	1140	7.5	72	26100	23800	21600	18350	12900	9730
		DDA36T10750B	DDA36T30750B*	1750	7.5	78	21500	20400	19400	18350	17100	15850
		-	DDA36T31000B*	1750	10.0	79	29700	28550	27300	26150	24900	23700
		-	DDA36T31500B*	1750	15.0	81	34320	32960	31970	30680	29280	28030
	42"	-	DDA42T30200D*	860	2.0	61	19200	16300	12400	6720	-	-
		-	DDA42T30300D*	860	3.0	63	23210	20230	16280	8980	3940	-
		-	DDA42T30500D*	860	5.0	66	28900	25600	20800	11100	6290	-
		-	DDA42T30500C*	1140	5.0	68	25500	23550	21100	18300	14200	10100
		-	DDA42T30750C*	1140	7.5	70	30690	28750	26190	23350	19410	12780
		-	DDA42T31000C*	1140	10.0	73	38300	35700	33100	29450	23000	15400
		-	DDA42T31000B*	1750	10.0	76	26700	25200	23750	22380	21100	19570
		-	DDA42T31500B*	1750	15.0	80	39100	38080	36700	34640	33500	32040
		-	DDA42T32000B*	1750	20.0	82	43300	42280	40860	39170	37600	36140
	48"	-	DDA48T30500D*	860	5.0	66	29820	26940	23790	12790	12790	6740
		-	DDA48T30750D*	860	7.5	68	35700	32450	28600	16800	16800	8270
		-	DDA48T31000C*	1140	10.0	74	39500	37400	35000	29800	29800	26050
		-	DDA48T31500C*	1140	15.0	76	47300	45050	42300	36200	36200	33490
		-	DDA48T32000C*	1140	20.0	79	53900	51450	48400	42300	42300	37120

For three phase motors, substitute “*” with “M” for 230/460 volt (If 208V required please specify) or “P” for 575 volt. dBA ratings shown are measured at 0” static pressure and should be used as a guideline only.

Dimensions


FAN SIZE	A	B	C	D	WEIGHT (lbs) without motor
12”	15 1/8”	14”	12”	17”	37
14"	17 3/8"	16"	14 3/8"	17"	TBA
15”	17 7/8”	17”	15 3/8”	17”	42
16"	19 3/8"	18"	16 3/8"	21"	TBA
18”	20 7/8”	20”	18 3/8”	21”	55
20"	23 3/8"	22"	20 3/8"	21"	TBA
24”	27 3/8”	25 7/8”	24 3/8”	21”	102
30”	33 3/8”	32 3/8”	30 3/8”	21”	138
34”	37 3/8”	36 3/8”	34 3/8”	27”	169
36”	39 3/8”	38 3/8”	36 3/8”	27”	181
42”	45 3/8”	44 3/8”	42 3/8”	32"	225
48”	51 3/8”	50 3/8”	48 3/8”	32”	308

Replacement Parts

View replacement parts

Options

For a complete listing of all available options and accessories available for this fan and ordering guidelines, click here.
When ordering, replace “T” (in Specifications chart) with ALL letters of the options and accessories required.

Options must be requested at time of order, as they cannot be added later.