Pusher Seal
Elastomer Seal
Metal Bellows
Standard Cartridge
Split Seal
Gas Lubricated
Engineered Seal
Compressor Seal
Agitator Seal
Marine Seal
Mechanical Seal MG12
Type in the H-Brinker HBG12
MG12 Operating range
- Shaft diameter: d1 = 10 … 100 mm (0.39″ … 3.94″)
- Pressure: p1 = 16 bar (230 PSI), vacuum … 0.5 bar (7.25 PSI), up to 1 bar (14.5 PSI) with seat locking
- Temperature: t = -20 °C … +140 °C (-4 °F … +284 °F)
- Sliding velocity: vg = 10 m/s (33 ft/s)
- Admissible axial movement: ±2.0 mm (±0,08″)
Description
| Item | Part no. to DIN 24250 | Description |
| 1.1 | 472 | Seal face |
| 1.2 | 481 | Bellows |
| 1.3 | 484.2 | L-ring (spring collar) |
| 1.4 | 484.1 | L-ring (spring collar) |
| 1.5 | 477 | Spring |
| 2 | 475 | Seat |
| 3 | 412 | O-Ring or cup rubber |
Seal MG12 Features (HBG12)
- For plain shafts
- Single and dual seal
- Elastomer bellows rotating
- Balanced
- Independent of direction of rotation
- No torsion on bellows
Seal MG12 Material
Seal face: Carbon graphite antimony impregnated (A), Carbon graphite resin impregnated (B), Silicon carbide (Q1, eSiC-Q7)
Seat: Silicon carbide (Q1, eSic-Q7), Tungsten carbide (U3)
Elastomer: NBR (P), EPDM (E), FKM (V), HNBR (X4)
Metal parts: CrNiMo steel (G), Hastelloy® (M)
Further materials upon request.
Seal MG12 Advantages (HBG12)
- Shaft protection over entire seal length
- Protection of seal face during installation due to special bellows design
- Insensitive to shaft deflections due to large axial movement ability
- Universal application opportunities
- Important material certifications available
- High flexibility due to wide offer on materials
- Suitable for low-end sterile applications
- Special design for hot water pumps (RMG12) available
- Dimension adaptions and additional seats available
Standards and approvals
EN 12756 (MG12, MG13)
Various material approvals available (depending on type and material combinations).
Please inquire!
- FDA
- WRAS
- KTW
- ACS
- W270
- NSF
Seal MG12 Recommended applications
- Fresh water supply
- Building services engineering
- Waste water technology
- Food technology
- Sugar production
- Pulp and paper industry
- Oil industry
- Petrochemical industry
- Chemical industry
- Water, waste water, slurries
(solids up to 5 % by weight) - Pulp (up to 4 % otro)
- Latex
Seal MG12 Recommended applications
- Dairies, beverages
- Sulfide slurries
- Chemicals
- Oils
- Chemical standard pumps
- Helical screw pumps
- Stock pumps
- Circulating pumps
- Submersible pumps
- Water and waste water pumps
- Oil applications
Seat MG12
Material plan MG12
Dimension table MG12
| d1 (h6) | d3 (Max) | d7 (H8) | L23 (±0.5) | L4 | d12 (H8) | L14 |
| 10 | 22,5 | 21,0 | 25,9 | 6,6 | 19,2 | 6,6 |
| 12 | 25,0 | 23,0 | 25,9 | 6,6 | 21,6 | 5,6 |
| 14 | 28,5 | 25,0 | 28,4 | 6,6 | 24,6 | 5,6 |
| 15 | 28,5 | 27,0 | 28,4 | 6,6 | 24,6 | 6,6 |
| 16 | 28,5 | 27,0 | 28,4 | 6,6 | 28,0 | 7,5 |
| 18 | 32,0 | 33,0 | 30,0 | 7,5 | 30,0 | 8,0 |
| 19 | 36,5 | 35,0 | 30,0 | 7,5 | 35,0 | 7,5 |
| 20 | 37,0 | 35,0 | 30,0 | 7,5 | 35,0 | 7,5 |
| 22 | 37,0 | 37,0 | 30,0 | 7,5 | 35,0 | 7,5 |
| 24 | 42,5 | 39,0 | 32,5 | 7,5 | 38,0 | 7,5 |
| 25 | 42,5 | 40,0 | 32,5 | 7,5 | 38,0 | 7,5 |
| 28 | 49,0 | 43,0 | 35,0 | 7,5 | 42,0 | 9,0 |
| 30 | 49,0 | 45,0 | 35,0 | 7,5 | 45,0 | 10,5 |
| 32 | 53,5 | 48,0 | 35,0 | 7,5 | 48,0 | 10,5 |
| 33 | 53,5 | 48,0 | 35,0 | 7,5 | 50,0 | 11,0 |
| 35 | 57,0 | 50,0 | 35,0 | 7,5 | 52,0 | 11,0 |
| 38 | 59,0 | 56,0 | 36,0 | 9,0 | 55,0 | 10,3 |
| 40 | 62,0 | 58,0 | 36,0 | 9,0 | 58,0 | 10,8 |
| 42 | 65,5 | 61,0 | 36,0 | 9,0 | 62,0 | 12,0 |
| 43 | 65,5 | 61,0 | 36,0 | 9,0 | 62,0 | 12,0 |
| 45 | 68,0 | 63,0 | 36,0 | 9,0 | 64,0 | 11,6 |
| 48 | 70,5 | 66,0 | 36,0 | 9,0 | 68,4 | 11,6 |
| 50 | 74,0 | 70,0 | 38,0 | 9,5 | 69,3 | 11,6 |
| 53 | 78,5 | 73,0 | 36,5 | 11,0 | 72,3 | 12,3 |
| 55 | 81,0 | 75,0 | 36,5 | 11,0 | 75,4 | 13,3 |
| 58 | 85,5 | 78,0 | 41,5 | 11,0 | 78,4 | 13,3 |
| 60 | 88,5 | 80,0 | 41,5 | 11,0 | 80,4 | 13,3 |
| 65 | 93,5 | 85,0 | 41,5 | 11,0 | 85,4 | 13,0 |
| 68 | 96,5 | 90,0 | 41,2 | 11,3 | 91,5 | 13,7 |
| 70 | 99,5 | 92,0 | 48,7 | 11,3 | 92,0 | 13,0 |
| 75 | 107,0 | 97,0 | 48,7 | 11,3 | 99,0 | 14,0 |
| 80 | 112,0 | 105,0 | 48,0 | 12,0 | 104,0 | 15,0 |
| 85 | 120,0 | 110,0 | 46,0 | 14,0 | 109,0 | 14,8 |
| 90 | 127,0 | 115,0 | 51,0 | 14,0 | 114,0 | 14,8 |
| 95 | 132,0 | 120,0 | 51,0 | 14,0 | 120,3 | 15,8 |
| 100 | 137,0 | 125,0 | 51,0 | 14,0 | 123,3 | 15,8 |
Download Catalog
