ESCO Circular silencers with ogive

Description

Circular silencer for noise control in heating, air conditioning and ventilation systems, with central ogive.

Characteristics

Material: galvanised steel ogive structure protected with mineral wool inside, anti-flaking surface and micro-extended mesh.

On request

Without ogive;
diameters 200, 225, 250, 280, 315, 355, 450, 560, 710, 900;
flanged edge.

Information and price list
Documents
Recommended Products
Information request

Connection type:

Insertion attenuation with ogive

The insertion attenuation is the ability of the silencer to reduce the internal noise of the ventilation duct, usually caused by the fan. It is measured as the difference between the upstream sound power level and the downstream sound power level of the silencer, both expressed in thirds of an octave and without air passage.

INT diameter (mm)	Length (mm)	Frequency (Hz)
INT diameter (mm)	Length (mm)	63	125	250	500	1000	2000	4000	8000
400	500	1	2	6	11	13	12	12	11
	1000	3	5	10	19	31	28	21	15
	1500	4	7	13	26	49	44	30	20
500	500	1	2	5	10	12	11	9	8
	1000	2	4	9	17	28	25	17	12
	1500	4	6	12	24	45	38	25	16
630	500	1	2	4	9	11	9	7	7
	1000	2	4	8	16	26	24	14	10
	1500	3	5	11	22	41	34	20	13
800	500	1	1	4	9	10	8	6	5
	1000	2	3	7	15	24	19	11	8
	1500	3	5	10	20	38	29	16	10
1000	500	1	1	4	8	9	7	5	4
	1000	2	3	6	13	22	16	9	6
	1500	2	4	9	19	35	26	13	8

Insertion attenuation without ogive

INT diameter (mm)	Length (mm)	Frequency (Hz)
INT diameter (mm)	Length (mm)	63	125	250	500	1000	2000	4000	8000
400	500	1	2	4	9	13	6	2	2
	1000	1	3	8	17	18	9	3	2
	1500	2	5	12	25	24	12	5	3
500	500	1	1	3	8	11	4	1	2
	1000	1	3	7	16	16	7	2	2
	1500	1	4	10	23	21	9	3	2
630	500	0	1	3	8	10	3	1	1
	1000	1	2	6	15	14	5	1	2
	1500	1	3	9	22	19	7	2	2
800	500	0	1	2	7	9	3	0	1
	1000	1	2	5	14	13	4	1	1
	1500	1	3	8	20	17	6	1	2
1000	500	0	1	2	7	8	2	0	1
	1000	0	1	5	13	11	3	0	1
	1500	1	2	7	19	15	5	1	1

Price list

diameter d (mm)	length	Silencer WITH OGIVE		Silencer WITHOUT OGIVE
diameter d (mm)	length	bayonet coupling	collar edge	bayonet coupling	collar edge
	mm	euro	euro	euro	euro
400	500	624,16	636,32	359,96	372,12
	1000	850,64	862,76	543,56	555,72
	1500	1217,60	1229,76	767,96	780,12
500	500	741,44	755,20	447,16	460,92
	1000	1035,52	1049,28	689,20	702,96
	1500	1477,60	1491,36	973,24	987,00
630	500	741,44	889,44	540,28	556,16
	1000	1234,88	1250,76	837,40	853,32
	1500	1752,20	1768,08	1178,60	1194,48
800	500	1057,00	1075,64	671,32	690,00
	1000	1503,36	1522,00	1038,08	1056,72
	1500	2122,72	2141,40	1456,44	1475,12
1000	500	1283,32	1305,24	834,88	856,80
	1000	1832,68	1854,60	1285,84	1307,76
	1500	2570,16	2592,04	1796,24	1818,16