Product Description
Our mechanical seal model 502 can replace AESSEAL B07S and CRANE
502 ,which is widely used for industrial pumps. BO seat and BP seat
are usually used for 502 type. The normal material combination
include resin carbon/ceramic/nbr/ss304,resin
carbon/tc/nbr/ss304,sic/sic/nbr/ss304 ,tc/tc/nbr/ss304 and so on.
we also can make changes as customers'requirement or totally design
a new type of mechanical seal to meet clients'needs.
BGM 502
Operating Limits:
1. Pressure: ≤4MPa
2. Speed: ≤13m/s
3. Temperature: -30ºC~+200ºC
Rotary Ring (Carbon/SiC/TC)
Stationary Ring (99%Ceramic/SiC/TC)
Secondary SeaI (/NBR/EPDM)
Spring & Other Parts (SUS304/SUS316)
The standard seat for the BGM 502 seal is the BO seat (DIN24960).
Alternative seats can also be used, such as the BP and BC seats.
Seal size
d(mm) | d3 | d6 | d7 | l1k | l4 |
| 12 | 22.6 | 18.5 | 22.5 | 32.5 | 12.0 |
| 14 | 24 | 21 | 25 | 35.0 | 12.0 |
| 16 | 26 | 23 | 27 | 35.0 | 12.0 |
| 18 | 32 | 27 | 33 | 37.5 | 13.5 |
| 20 | 34 | 29 | 35 | 37.5 | 13.5 |
| 22 | 36 | 31 | 37 | 37.5 | 13.5 |
| 24 | 38 | 33 | 39 | 40.0 | 13.3 |
| 25 | 39 | 34 | 40 | 40.0 | 13.0 |
| 28 | 42 | 37 | 43 | 42.5 | 12.5 |
| 30 | 44 | 39 | 45 | 42.5 | 12.0 |
| 32 | 46 | 42 | 48 | 42.5 | 12.0 |
| 33 | 46 | 42 | 48 | 42.5 | 12.0 |
| 35 | 49 | 44 | 50 | 42.5 | 12.0 |
| 38 | 54 | 49 | 56 | 45.0 | 13.0 |
| 40 | 56 | 51 | 58 | 45.0 | 13.0 |
| 43 | 59 | 54 | 61 | 45.0 | 13.0 |
| 45 | 61 | 56 | 63 | 45.0 | 13.0 |
| 48 | 64 | 59 | 66 | 45.0 | 13.0 |
| 50 | 66 | 62 | 70 | 47.5 | 13.3 |
| 55 | 71 | 67 | 75 | 47.5 | 13.3 |
| 60 | 80 | 72 | 80 | 52.5 | 13.3 |
| 65 | 85 | 77 | 85 | 52.5 | 13.3 |
| 70 | 89 | 83 | 92 | 60.0 | 14.5 |
| 75 | 96 | 88 | 97 | 60.0 | 14.5 |
| 80 | 104 | 95 | 105 | 60.0 | 15.0 |
| 85 | 108 | 100 | 110 | 60.0 | 15.0 |
| 90 | 114 | 105 | 115 | 65.0 | 15.0 |
| 95 | 118 | 110 | 120 | 65.0 | 15.0 |
| 100 | 124 | 115 | 125 | 65.0 | 15.0 |
Professional Packing for Tents Transportation
Experienced Shipping Service for Exporting
| 1. We can check the shipping price for you, and recommend shipping
agents to you. |
| 2. You could always arrange the shipping by your own agents. |
| 3. We usually use Ningbo port as our export port, but if you want
to use other sea ports, we can also arrange it for you (Guangzhou,
Shenzhen, etc. We can negotiate on the details of cost and
operation) |
Your convenience is our main conern
| 1. We can help you to book hotel and tickets to make your visiting
to us more convenient. |
| 2. Car service, if you want to visit us and are near Shanghai city,
we can send a car to pick you up so you can come to visit Bergman
easily. |
| 3. After sale service is always available, we maintain very good
reputation all over the world, and we offer after sale service to
our clients, like installation instructions, replacement of flaw
parts, upgrade of tents, renew tent parts, tent warehousing
guidance, etc. |
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: Pump, 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. Select Appropriate mechanical seal to match the materials
according to work conditions and host machine equipment. |
| 2. 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. |
| 3. 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. |
4. 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. |
| 5. 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. |
| 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. |
