Mechanical Seal

Mechanical seal model CR is widely used for GRUNDFOS-PUMP . The normal material combination include SIC/SIC/viton/machined ss304,TC/TC/VITON/machined ss304 and SIC/ SIC/VITON/SS304

Model	d₁	d₃	d₇	d₈	M	l	l₁	l₂	S
CR-12	12	25.0	29	\	M28X1.5	55.0	19	48	35.8
CR-14	14	27.5	38	\	M33X1.5	55.5	18	49	40.8
CR-16	16	30.5	34	\	M33X1.5	57.5	20	55.5	40.8
CR-22 PUNCH	22	39.0	50	59	\	70.0	20	55.0	\
CR-22 MACHINING	22	42.0	50	60	\	70.0	20	55.0	\
CR-32	32	53	61	71	\	70.5	20	57.0	\

Mechanical seal model M3 can Replace BURGMANN M3N/M37 and MTU EUROPA

Seal size d(mm)	d₃	BT			G4			G9				G6
Seal size d(mm)	d₃	d₇	l₁	l₃	d₇	l₁	l₃	d₇	d₈	l₁	l₃	d₇	l₁	l₃
8	18	17.1	15	5.5	19.2	11.9	7.0	\	\	\	\	\	\	\
10	19	18.1	15	5.5	19.2	15.5	6.6	21	3	15.5	10	21	15.5	6.6
11	20	20.6	18	5.5	\	\	\	\	\	\	\	\	\	\
12	21	20.6	18	55.0	21.6	16.0	5.6	23	3	16.0	10	23	16.0	6.6
13	22	23.0	22	6.0	\	\	\	\	\	\	\	\	\	\
14	23	23.1	22	6.0	24.6	16.5	5.6	25	3	16.5	10	25	16.5	6.6
15	24	26.9	22	7.0	24.6	18.0	6.6	\	\	\	\	\	\	\
16	26	26.9	23	7.0	28.0	18.0	7.5	27	3	18.0	10	27	18.0	6.6
17	26	26.9	23	7.0	\	\	\	\	\	\	\	\	\	\
18	29	30.9	24	8.0	30.0	19.5	8.0	33	3	19.5	11.5	33	19.5	7.5
19	31	30.9	25	8.0	35.0	22.0	7.5	\	\	\	\	\	\	\
20	31	30.9	25	8.0	35.0	22.0	7.5	35	3	22.0	11.5	35	22.0	7.5
22	33	35.4	25	8.0	35.0	21.5	7.5	37	3	21.5	11.5	37	21.5	7.5
23	36	35.4	27	8.0	\	\	\	\	\	\	\	\	\	\
24	35	35.4	27	8.0	38.0	23.5	7.5	39	3	23.5	11.5	39	23.5	7.5
25	36	38.2	27	8.5	38.0	26.5	7.5	40	3	26.5	11.5	40	26.5	7.5
26	37	38.2	27	8.5	40.0	26.5	8.0	\	\	\	\	\	\	\
28	40	43.3	29	9.0	42.0	26.5	9.0	43	3	26.5	11.5	43	26.5	7.5
30	43	43.3	30	9.0	45.0	26.5	10.5	45	3	26.5	11.5	45	26.5	7.5
32	46	43.3	30	9.0	48.0	28.5	10.5	48	3	28.5	11.5	48	28.5	7.5
33	47	53.5	39	11.5	\	\	\	\	\	28.5	\	\	28.5	\
34	48	53.5	39	11.5	\	\	\	\	\	\	\	\	\	\
35	49	53.5	39	11.5	52.0	28.5	11.0	50	3	28.5	11.5	50	28.5	7.5
36	50	53.5	39	11.5	\	\	\	\	\	\	\	\	\	\
38	53	60.5	39	11.5	55.0	33.5	10.3	56	3	33.5	14.0	56	33.5	9.0
40	56	60.5	39	11.5	58.0	36.0	10.8	58	3	36.0	14.0	58	36.0	9.0
42	59	60.5	39	11.5	62.0	38.5	12.0	\	\	\	\	\	\	\
43	59	60.5	39	11.5	62.0	38.5	12.0	61	3	38.5	14.0	61	38.5	9.0
44	60	65.5	41	11.5	\	\	\	\	\	\	\	\	\	\
45	61	65.5	41	11.5	64.0	39.5	11.6	63	4	39.5	14.0	63	39.5	9.0
48	64	65.5	41	11.5	68.4	46.0	11.6	66	4	46.0	14.0	66	46.0	9.0
50	66	72.5	45	11.5	69.3	45.0	11.6	70	4	45.0	15.0	70	45.0	9.5
53	69	\	\	\	\	\	\	73	4	47.0	15.0	70	47.0	9.5
55	71	72.5	47	11.5	75.4	49.0	13.3	75	4	49.0	15.0	75	49.0	11.0
58	76	\	\	\	78.4	55.0	13.3	78	4	55.0	15.0	78	55.0	11.0
60	78	79.3	49	11.5	80.4	55.0	13.3	80	4	55.0	15.0	80	55.0	11.0
63	83	\	\	\	\	\	\	83	4	55.0	15.0	83	55.0	11.0
65	84	84.5	51	11.5	85.4	55.0	13.0	85	4	55.0	15.0	85	55.0	11.0
68	88	\	\	\	91.5	55.0	13.7	90	4	55.0	18.0	90	55.0	11.3
70	90	89.5	51	11.5	92.0	57.0	13.0	92	4	57.0	18.0	92	57.0	11.3
75	98	3.9	57	11.5	99.0	62.0	14.0	97	4	62.0	18.0	97	62.0	11.3
80	100	99.5	59	11.5	104.0	61.8	15.0	105	4	61.8	18.2	105	61.8	12.0

Mechanical seal model M2N can Replace AESSEAL T07D ,BURGMANN M2N ,which is widely used for Hecker HN 400A

Seal size d(mm)	d₃	d₇	l₁	l₃	Seal size d(mm)	d₃	d₇	l₁	l₃
6	15	\	\	\	22	35	37	23.5	11.5
8	18	\	\	\	24	38	39	25.0	11.5
10	20	21	17.5	10.0	25	40	40	26.5	11.5
12	22	23	17.5	10.0	26	41	40	26.5	11.5
14	25	25	17.5	10.0	28	43	43	26.5	11.5
15	27	27	19.5	10.0	30	47	45	26.5	11.5
16	27	27	19.5	10.0	32	48	48	28.5	11.5
18	30	33	20.5	11.5	35	53	50	28.5	11.5
20	32	35	22.0	11.5	38	56	56	33.5	14.0

Mechanical seal model M74D can Replace BURGMANN M74D,which is widely used for industrial pumps.

d(mm)	d₃	d₆	d₇	d₈	l₁	l₃	l₈	l₉	Mx
18	33	27	33	3	61.0	38	19.5	11.5	M5
20	35	29	35	3	61.0	38	19.5	11.5	M5
22	37	31	37	3	61.0	38	19.5	11.5	M5
24	39	33	39	3	61.0	38	19.5	11.5	M5
25	40	34	40	3	61.0	38	19.5	11.5	M5
28	43	37	43	3	62.0	39	19.5	11.5	M6
30	45	39	45	3	62.0	39	19.5	11.5	M6
32	47	42	48	3	62.0	39	19.5	11.5	M6
33	48	42	48	3	62.0	39	19.5	11.5	M6
35	50	44	50	3	62.0	39	19.5	11.5	M6
38	55	49	56	4	69.0	41	22.0	14.0	M6
40	57	51	58	4	70.0	42	22.0	14.0	M6
43	60	54	61	4	70.0	42	22.0	14.0	M6
45	62	56	63	4	70.0	42	22.0	14.0	M6
48	65	59	66	4	70.0	42	22.0	14.0	M6
50	67	62	70	4	73.0	43	23.0	15.0	M6
53	70	65	73	4	73.0	43	23.0	15.0	M6
55	72	67	75	4	73.0	43	23.0	15.0	M8
58	79	70	78	4	86.0	56	23.0	15.0	M8
60	81	72	80	4	86.0	56	23.0	15.0	M8
63	84	75	83	4	85.0	55	23.0	15.0	M8
65	86	77	85	4	85.0	55	23.0	15.0	M8
68	89	81	90	4	91.0	55	26.0	18.0	M8
70	91	83	92	4	92.0	56	26.0	18.0	M8
75	99	88	97	4	92.0	56	26.0	18.0	M8
80	104	95	105	4	92.5	56	26.2	18.2	M8
85	109	100	110	4	92.5	56	26.2	18.2	M8
90	114	105	115	4	92.5	56	26.2	18.2	M8
95	119	110	120	4	90.5	56	25.2	17.2	M8
100	124	115	125	4	90.5	56	25.2	17.2	M8

Mechanical seal model M7N can Replace BURGMANN M7N and MTU DR1-D,which is widely used for industrial pumps

Seal size d(mm)	d₃	d₆	d₇	l₁	l₃	Seal size d(mm)	d₃	d₆	d₇	l₁	l₃
14	25	21	25	35.0	10.0	48	65	59	66	45.0	14.0
16	27	23	27	35.0	10.0	50	67	62	70	47.5	15.0
18	33	29	33	37.5	11.5	53	70	65	73	47.5	15.0
20	35	29	35	37.5	11.5	55	72	67	75	47.5	15.0
22	37	31	37	37.5	11.5	58	79	70	78	52.5	15.0
24	39	33	39	40.0	11.5	60	81	72	80	52.5	15.0
25	40	34	40	40.0	11.5	63	84	75	83	52.5	15.0
28	43	37	43	42.5	11.5	65	86	77	85	52.5	15.0
30	45	39	45	42.5	11.5	68	89	81	90	52.5	18.0
32	47	42	48	42.5	11.5	70	91	83	92	60.0	18.0
33	48	42	48	42.5	11.5	75	99	88	97	60.0	18.0
35	50	44	50	42.5	11.5	80	104	95	105	60.0	18.2
38	55	49	56	45.0	14.0	85	109	100	110	60.0	18.2
40	57	51	58	45.0	14.0	90	114	105	115	65.0	18.2
43	60	54	61	45.0	14.0	95	119	110	120	65.0	17.2
45	62	56	63	45.0	14.0	100	124	115	125	65.0	17.2