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CHEM NM-3 Mechanical seal with a sylphon from teflon
CHEM NM-3 mechanical seal with a sylphon from teflon
Analog:
AESSEAL B08, Burgmann TF92 / TF95 / TF97, John Crane 10R / 10T
When sealing chemically aggressive corrosive fluids, problems with compatibility of metal seal elements with the working medium to be sealed may often occur. For such cases, CHEM NM-3 seal is recommended, which does not have any metal components in contact with the working fluid. For this reason, it is often used in the chemical industry. Secondary sealing is completed by means of a PTFE bellows, and no elastomers are used, which are normally not resistant to acids. This type of seal is often used in the chemical industry and petrochemistry. The function of the seal does not depend on the direction of shaft rotation. The design of the seal ensures its maximum resistance to the fluid film. In view of the seal design and selected faces, we recommend this seal for sealing chemically aggressive and corrosive fluids.
Materials used for sealing faces:
Seal rotating part:
PTFE - glass impregnated (teflon - glass)
PTFE - graphite impregnated
PTFE - coke impregnated
Seal mating part:
carbographite
silicon carbide
ceramics
Operating limits:
СЂ = 8 bars
t = -40 ... 160В°C
v = 10 m/s
|
d |
D1 |
d2 |
d3 |
l |
l1 |
l2 |
l3 |
|
16 |
49 |
38,0 |
54 |
32 |
5,0 |
8,0 |
1,0 |
|
18 |
49 |
38,0 |
54 |
32 |
5,0 |
8,0 |
1,0 |
|
20 |
52 |
41,0 |
57 |
32 |
5,0 |
8,0 |
1,0 |
|
22 |
52 |
41,0 |
57 |
32 |
5,0 |
8,0 |
1,0 |
|
24 |
55 |
44,0 |
61 |
34 |
5,0 |
8,0 |
1,0 |
|
25 |
55 |
44,0 |
61 |
34 |
5,0 |
8,0 |
1,0 |
|
28 |
66 |
52,0 |
67 |
37 |
8,0 |
11,0 |
1,5 |
|
30 |
69 |
55,0 |
70 |
38 |
8,0 |
11,0 |
1,5 |
|
32 |
69 |
55,0 |
70 |
38 |
8,0 |
11,0 |
1,5 |
|
33 |
72 |
58,0 |
73 |
39 |
8,0 |
11,0 |
1,5 |
|
35 |
72 |
58,0 |
73 |
39 |
8,0 |
11,0 |
1,5 |
|
38 |
79 |
65,0 |
76 |
39 |
8,0 |
11,0 |
1,5 |
|
40 |
82 |
68,0 |
80 |
41 |
8,0 |
11,0 |
1,5 |
|
43 |
85 |
71,0 |
83 |
41 |
8,0 |
11,0 |
1,5 |
|
45 |
85 |
71,0 |
83 |
41 |
8,0 |
11,0 |
1,5 |
|
48 |
98 |
80,0 |
89 |
44 |
10,0 |
14,0 |
1,5 |
|
50 |
98 |
80,0 |
89 |
44 |
10,0 |
14,0 |
1,5 |
|
53 |
101 |
84,0 |
103 |
54 |
10,0 |
14,0 |
1,5 |
|
55 |
104 |
87,0 |
107 |
54 |
10,0 |
14,0 |
1,5 |
|
58 |
106 |
90,0 |
110 |
54 |
10,0 |
14,0 |
1,5 |
|
60 |
106 |
90,0 |
110 |
54 |
10,0 |
14,0 |
1,5 |
|
63 |
111 |
93,0 |
113 |
54 |
10,0 |
14,0 |
1,5 |
|
65 |
114 |
96,0 |
116 |
54 |
10,0 |
14,0 |
1,5 |
|
68 |
117 |
99,0 |
118 |
54 |
10,0 |
14,0 |
1,5 |
|
70 |
117 |
99,0 |
118 |
54 |
10,0 |
14,0 |
1,5 |
|
75 |
122 |
104,0 |
126 |
54 |
10,0 |
14,0 |
1,5 |
|
80 |
133 |
115,0 |
150 |
74 |
10,0 |
14,0 |
1,5 |
|
85 |
139 |
122,0 |
156 |
74 |
10,0 |
14,0 |
1,5 |
|
90 |
145 |
128,0 |
163 |
74 |
10,0 |
14,0 |
1,5 |
|
95 |
145 |
128,0 |
163 |
74 |
10,0 |
14,0 |
1,5 |
|
100 |
152 |
134,0 |
169 |
74 |
10,0 |
14,0 |
1,5 |
|
105 |
158 |
141,0 |
175 |
74 |
10,0 |
14,0 |
1,5 |
|
110 |
184 |
160,0 |
182 |
74 |
10,0 |
14,0 |
1,5 |
|
115 |
190 |
166,0 |
188 |
74 |
10,0 |
14,0 |
1,5 |
|
120 |
190 |
166,0 |
188 |
74 |
10,0 |
16,0 |
1,5 |
|
125 |
196 |
172,0 |
194 |
74 |
10,0 |
16,0 |
1,5 |
|
130 |
203 |
179,0 |
201 |
74 |
10,0 |
16,0 |
1,5 |
|
135 |
209 |
185,0 |
207 |
74 |
10,0 |
16,0 |
1,5 |
|
140 |
215 |
191,0 |
213 |
74 |
10,0 |
16,0 |
1,5 |
|
145 |
215 |
191,0 |
213 |
74 |
10,0 |
16,0 |
1,5 |
|
150 |
228 |
201,0 |
220 |
74 |
10,0 |
16,0 |
1,5 |
|
155 |
234 |
207,0 |
226 |
74 |
10,0 |
16,0 |
1,5 |
|
160 |
241 |
214,0 |
232 |
74 |
10,0 |
16,0 |
1,5 |
|
165 |
241 |
214,0 |
232 |
74 |
10,0 |
16,0 |
1,5 |
+ customized seals as per your drawings and specifications
- Description
CHEM NM-3 mechanical seal with a sylphon from teflon
Analog:
AESSEAL B08, Burgmann TF92 / TF95 / TF97, John Crane 10R / 10T
When sealing chemically aggressive corrosive fluids, problems with compatibility of metal seal elements with the working medium to be sealed may often occur. For such cases, CHEM NM-3 seal is recommended, which does not have any metal components in contact with the working fluid. For this reason, it is often used in the chemical industry. Secondary sealing is completed by means of a PTFE bellows, and no elastomers are used, which are normally not resistant to acids. This type of seal is often used in the chemical industry and petrochemistry. The function of the seal does not depend on the direction of shaft rotation. The design of the seal ensures its maximum resistance to the fluid film. In view of the seal design and selected faces, we recommend this seal for sealing chemically aggressive and corrosive fluids.
Materials used for sealing faces:
Seal rotating part:
PTFE - glass impregnated (teflon - glass)
PTFE - graphite impregnated
PTFE - coke impregnated
Seal mating part:
carbographite
silicon carbide
ceramics
Operating limits:
СЂ = 8 bars
t = -40 ... 160В°C
v = 10 m/s
d
D1
d2
d3
l
l1
l2
l3
16
49
38,0
54
32
5,0
8,0
1,0
18
49
38,0
54
32
5,0
8,0
1,0
20
52
41,0
57
32
5,0
8,0
1,0
22
52
41,0
57
32
5,0
8,0
1,0
24
55
44,0
61
34
5,0
8,0
1,0
25
55
44,0
61
34
5,0
8,0
1,0
28
66
52,0
67
37
8,0
11,0
1,5
30
69
55,0
70
38
8,0
11,0
1,5
32
69
55,0
70
38
8,0
11,0
1,5
33
72
58,0
73
39
8,0
11,0
1,5
35
72
58,0
73
39
8,0
11,0
1,5
38
79
65,0
76
39
8,0
11,0
1,5
40
82
68,0
80
41
8,0
11,0
1,5
43
85
71,0
83
41
8,0
11,0
1,5
45
85
71,0
83
41
8,0
11,0
1,5
48
98
80,0
89
44
10,0
14,0
1,5
50
98
80,0
89
44
10,0
14,0
1,5
53
101
84,0
103
54
10,0
14,0
1,5
55
104
87,0
107
54
10,0
14,0
1,5
58
106
90,0
110
54
10,0
14,0
1,5
60
106
90,0
110
54
10,0
14,0
1,5
63
111
93,0
113
54
10,0
14,0
1,5
65
114
96,0
116
54
10,0
14,0
1,5
68
117
99,0
118
54
10,0
14,0
1,5
70
117
99,0
118
54
10,0
14,0
1,5
75
122
104,0
126
54
10,0
14,0
1,5
80
133
115,0
150
74
10,0
14,0
1,5
85
139
122,0
156
74
10,0
14,0
1,5
90
145
128,0
163
74
10,0
14,0
1,5
95
145
128,0
163
74
10,0
14,0
1,5
100
152
134,0
169
74
10,0
14,0
1,5
105
158
141,0
175
74
10,0
14,0
1,5
110
184
160,0
182
74
10,0
14,0
1,5
115
190
166,0
188
74
10,0
14,0
1,5
120
190
166,0
188
74
10,0
16,0
1,5
125
196
172,0
194
74
10,0
16,0
1,5
130
203
179,0
201
74
10,0
16,0
1,5
135
209
185,0
207
74
10,0
16,0
1,5
140
215
191,0
213
74
10,0
16,0
1,5
145
215
191,0
213
74
10,0
16,0
1,5
150
228
201,0
220
74
10,0
16,0
1,5
155
234
207,0
226
74
10,0
16,0
1,5
160
241
214,0
232
74
10,0
16,0
1,5
165
241
214,0
232
74
10,0
16,0
1,5
+ customized seals as per your drawings and specifications
- Name
- CHEM NM-3 Mechanical seal with a sylphon from teflon
