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Slide Damper

T305 Airtight Inclined Slide Damper

(1) Suitable for dust removal and pneumatic conveying ducts requiring high airtightness.

(2) For horizontal ducts: mount the damper at 45° along the airflow direction. For vertical ducts with upward airflow: install at 45° against the airflow direction.

(3) The valve plate is made of steel plate with thickness δ=2.0 mm, and the valve body duct adopts steel plate of δ=1.5 mm. Use materials complying with design requirements if the wall thickness differs from the system duct.

Dimension Table

Item	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24
D (mm)	60	65	90	95	100	105	110	115	120	125	130	135	140	145	150	155	160	165	170	175	180	185	190	195
A (mm)	113	120	127	133	141	149	156	196	170	177	184	191	199	205	212	219	226	234	240	248	254	261	268	275
B (mm)	276	290	304	316	332	348	366	376	390	404	418	432	446	460	474	448	502	510	530	546	558	572	586	600
L (mm)	280	285	290	295	300	305	310	315	320	325	330	335	340	345	350	355	360	365	370	375	380	385	390	395
Weight (kg)	2.7	2.9	3.1	3.3	3.5	3.8	3.9	4.2	4.4	4.6	4.8	5.1	5.3	5.6	5.8	6.1	6.4	6.6	6.9	7.1	7.4	7.7	8.0	8.3
Item	25	26	27	28	29	30	31	32	33	34	35	36	37	38	39	40	41	42	43	44	45	46	47	48
D (mm)	200	205	210	215	220	225	230	235	240	245	250	255	260	265	270	275	280	285	290	300	310	320	330	340
A (mm)	282	290	296	304	310	318	325	332	339	346	353	360	367	374	382	388	396	402	410	424	438	452	456	481
B (mm)	624	640	652	668	680	696	710	721	738	752	768	780	794	808	824	836	852	864	880	908	936	964	992	1022
L (mm)	400	405	410	415	420	425	430	435	440	445	450	455	460	465	470	475	480	485	490	500	510	520	530	540
Weight (kg)	9.2	9.5	9.9	10.2	10.5	10.9	11.5	11.6	11.9	12.3	13.7	13.0	13.3	13.7	14.1	14.5	14.9	15.3	15.7	16.5	17.2	18.1	19.0	19.9

Round Slide Damper (T355-1) Dimensions

Model No.	D (mm)	A1 (mm)	A2 (mm)	B (mm)	C (mm)	G (mm)	L (mm)
1	200	556	270	—	8	—	200
2	220	596	290	—	8	—	200
3	250	656	320	—	8	—	200
4	280	716	350	—	9	—	200
5	320	796	390	—	9	—	300
6	360	875	430	—	9	—	300
7	400	955	470	—	9	—	300
8	450	1055	520	173	9	150	300
9	500	1165	570	190	10	167	300
10	560	1295	640	213	10	187	300
11	630	1435	710	236	10	210	300

Square Slide Damper (T355-2) Dimensions

Model No.	A (mm)	A1 (mm)	A2 (mm)	L (mm)
1	200	556	270	200
2	250	656	320	200
3	320	796	390	300
4	400	955	470	300
5	500	1165	570	300
6	630	1435	710	300

Note: Slide dampers for duct sizes 400×400mm and below have no diagonal braces; dampers for 320×320mm and below have no guide rails.

Slide Damper

T305 Airtight Inclined Slide Damper

​Dimension Table

Round Slide Damper (T355-1) Dimensions

Square Slide Damper (T355-2) Dimensions

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Dimension Table