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Industrial Replacement Burgmann M7N Mechanical Seal M74 14 200mm
Mechanical Seal Replace Burgman M7N M74 Industrial Pump Seal Mechanical Seal
BGM M7N M74
Operating Limits:
1. Pressure: ≤1.6MPa
2. Speed: ≤20m/s
3. Temperature: -30ºC~+200ºC
Rotary Ring (SiC/TC/Carbon)
Stationary Ring (Carbon/SiC/TC)
Secondary SeaI (/Encapsulated Ring)
Metal Parts (SUS304/SUS316)
Spring (17-7PH/SUS304/SUS316)
For the G4 / G6 / G9 / and G13 seats refer to the "Stationary Seats
Dimensional Data" table at the front of the catalog
Seal size d(mm) | d3 | d6 | d7 | l1 | l3 |
14 | 25 | 21 | 25 | 35 | 10 |
16 | 27 | 23 | 27 | 35 | 10 |
18 | 33 | 29 | 33 | 37.5 | 11.5 |
20 | 35 | 29 | 35 | 37.5 | 11.5 |
22 | 37 | 31 | 37 | 37.5 | 11.5 |
24 | 39 | 33 | 39 | 40 | 11.5 |
25 | 40 | 34 | 40 | 40 | 11.5 |
28 | 43 | 37 | 43 | 42.5 | 11.5 |
30 | 45 | 39 | 45 | 42.5 | 11.5 |
32 | 47 | 42 | 48 | 42.5 | 11.5 |
33 | 48 | 42 | 48 | 42.5 | 11.5 |
35 | 50 | 44 | 50 | 42.5 | 11.5 |
38 | 55 | 49 | 56 | 45 | 14 |
40 | 57 | 51 | 58 | 45 | 14 |
43 | 60 | 54 | 61 | 45 | 14 |
45 | 62 | 56 | 63 | 45 | 14 |
48 | 65 | 59 | 66 | 45 | 14 |
50 | 67 | 62 | 70 | 47.5 | 15 |
53 | 70 | 65 | 73 | 47.5 | 15 |
55 | 72 | 67 | 75 | 47.5 | 15 |
58 | 79 | 70 | 78 | 52.5 | 15 |
60 | 81 | 72 | 80 | 52.5 | 15 |
63 | 84 | 75 | 83 | 52.5 | 15 |
65 | 86 | 77 | 85 | 52.5 | 15 |
68 | 89 | 81 | 90 | 52.5 | 18 |
70 | 91 | 83 | 92 | 60 | 18 |
75 | 99 | 88 | 97 | 60 | 18 |
80 | 104 | 95 | 105 | 60 | 18.2 |
85 | 109 | 100 | 110 | 60 | 18.2 |
90 | 114 | 105 | 115 | 65 | 18.2 |
95 | 119 | 110 | 120 | 65 | 17.2 |
100 | 124 | 115 | 125 | 65 | 17.2 |
We are a manufacturer. All seals have bulk inventory and can be shipped to you quickly. We promise to ship you in small quantities within 3 days.Advanced technology, excellence, replace original
1. Different models of mechanicals seals for a wide variety of
Grundfos® pumps, among them: CR(N), NB, NK, CLM, LP, TP, etc.
Available in diverse combinations of materials and different
diameters: 12, 16, 22, 28, 33, etc. Also mechanical seals for
Sarlin®. Division of waster pumps. Available in various materials:
silicon-graphite carbide, silicon carbide-silicon carbide; combined
with EPDM and FKM elastomers.
2. Mechanical seals are available for different references
Gorman-Rupp® pumps. Special models for the transfer of clean water,
sewage, oil industry, agriculture and others.
GRN-38'1
3. Mechanical seals for Fristam® pumps. Wide range of models and
materials in the most standard diameters: 22,30 and 35 mm.
Different assembly possibilities for the most well-known pump
models: FP, FL and FT.
4. Broad range of mechanical seals compatible with Flygt® and
Grindex® waste water pumps. These mechanical seals are
characterized by their easy and fast installation, without having
to make any modification to the pump. Manufactured in stainless
steel and in solid tungsten carbide. Special tools are not
necessary for their installation.
5. Mechanical seals for EMU® pumps. They get two static faces and
one rotating face. We can supply the complete seal or spare faces.
6. Different designs of mechanical seals for Ebara® pumps, single
and double seals in combinations carbide-silicon carbide and
graphite-aluminium oxide.
7. Mechanical seals for all types of Calpeda® pumps: centrifugal
pumps, multistage, submersible. Different models of mechanical
seals in a wide range of materials.
8. Mechanical seals compatible for APV® pumps, among them: Puma,
ZMA, ZMB, ZMD, ZMS, ZMH, ZMK. Rosista® and Pasilac®, W and W+. Some
designs with wave spring like the special seals for APV Howard®
pumps and Crepaco Clean Line®. All of them have been manufactured
in materials suitable for working with fluids such as juices, milk
and drinks in general.
9. Allweiler, Simple design of mechanical seals simple but with
special measures for this type of pump.
10. Different models of mechanical seals compatible for Alfa-Laval®
pumps series CM, FM, MR, LKH,GM and ALC. Also the models for the
range of lobular SSP and SR pumps. Mechanical seals in different
combination of materials tungsten carbide, silicon carbide,
graphite; combined with different types of elastomers: NBR, EPDM
and FKM.
11. Mechanical seals for ABS® submergible pumps specific wastewater
treatment. Different models of mechanical seal available: oil
chamber mechanical seal and water mechanical seal.
Fixing and Applying Directions of Mechanical Seals
1. The radial acting deviation for the shaft(shaft sleeve) of the installed mechanical seal shall be 0.04mm by maximum while the axial movement value of the rotor shall be no more than 0.1mm. |
2. The seal cover (or shaft cover) of the stationary ring of the installed mechanical seals,the vertical degree of the seal face should be 0.04mm by maximum. |
3. When installing the mechanical seals,the shaft(shaft
sleeve),seal chamber,seal face as well as the mechanical seal face should be 0.04mm by maximum. |
4. When conveying medium of over high or low temperature,with medium which are easy catch fire,easy for explosion.Related mechanical seal standards must be referred to take appropriate measures such as quench,rinsing,coolong and filtrating. |
5. Appropricate lubrication must be choosen when mechanical seal is installed.The installment size of the mechanical seal must be guaranteed to the installment instruction. |
6. Before the machine starts running,the hermetic compartment shall be full of medium and well lubricated.Dry friction which may lead to the damage of the air-tightness is strict forbidden. |