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SS-HRN: Burgmann HRN mechanical seal replacement
Features:
Equivalent to Burgmann HRN
Single seal
Balanced
Independent of direction of rotation
Stationary springs
Dual seals in tandem as well as back-to-back arrangements (also in combination with H10 seal)
Operating range:
Shaft diameter: d = 18 ... 100 mm (0.71" … 3.94")
Pressure: p1*) = 25 bar (363 PSI)
Temperature: t = -40 °C ... +220 °C (-40 °F … 428 °F)
Sliding velocity: vg = 20 m/s (66 ft/s)
Materials:
Seal face: Carbon graphite resin impregnated (B), Silicon carbide (Q1)
Seat: Silicon carbide (Q1)
Secondary seals: FKM (V), NBR (P), FFKM (K), PTFE (T)
Springs: Hastelloy® C-4 (M)
Metal parts: CrNiMo steel (G)
Advantages:
Safe operation (no fractures) because of seal face locking by square pin;
Spring unit averted from the product so no sticking and clogging of the springs;
Suitable for pressure reversals
Operation in vacuum without additional seat locking possible;
No damage of the shaft by a dynamically loaded O-Ring;
Small installation sizes
Best suitable for conversions, no adaptations of the pump;
Insensitive to solid containing and abrasive media
Advantages of a balanced seal even with plain shafts
Insensitive to shaft movements because of the stationary design
Recommended applications:
Water and waste water technology
Refining technology
Dirty, abrasive and solid containing media
Fugitive hydrocarbons (no API seal!)
Sticky and stringy media
Chemical standard pumps
Sewage pumps
Features:
Equivalent to Burgmann HRN
Single seal
Balanced
Independent of direction of rotation
Stationary springs
Dual seals in tandem as well as back-to-back arrangements (also in combination with H10 seal)
Operating range:
Shaft diameter: d = 18 ... 100 mm (0.71" … 3.94")
Pressure: p1*) = 25 bar (363 PSI)
Temperature: t = -40 °C ... +220 °C (-40 °F … 428 °F)
Sliding velocity: vg = 20 m/s (66 ft/s)
Materials:
Seal face: Carbon graphite resin impregnated (B), Silicon carbide (Q1)
Seat: Silicon carbide (Q1)
Secondary seals: FKM (V), NBR (P), FFKM (K), PTFE (T)
Springs: Hastelloy® C-4 (M)
Metal parts: CrNiMo steel (G)
Advantages:
Safe operation (no fractures) because of seal face locking by square pin;
Spring unit averted from the product so no sticking and clogging of the springs;
Suitable for pressure reversals
Operation in vacuum without additional seat locking possible;
No damage of the shaft by a dynamically loaded O-Ring;
Small installation sizes
Best suitable for conversions, no adaptations of the pump;
Insensitive to solid containing and abrasive media
Advantages of a balanced seal even with plain shafts
Insensitive to shaft movements because of the stationary design
Recommended applications:
Water and waste water technology
Refining technology
Dirty, abrasive and solid containing media
Fugitive hydrocarbons (no API seal!)
Sticky and stringy media
Chemical standard pumps
Sewage pumps
| SS-HRN Dimensions(mm) | |||||||||||
| d1 | d3 | d6 | d7 | d8 | d10 | l1k | l3 | l5 | l6 | f | mx |
| 18 | 33 | 27 | 33 | 3 | 34.7 | 37.5 | 19.5 | 2.0 | 5 | 3.0 | 4 |
| 20 | 35 | 29 | 35 | 3 | 36.7 | 37.5 | 19.5 | 2.0 | 5 | 3.0 | 4 |
| 22 | 37 | 31 | 37 | 3 | 38.7 | 37.5 | 19.5 | 2.0 | 5 | 3.0 | 4 |
| 24 | 39 | 33 | 38 | 3 | 40.7 | 40.0 | 20.5 | 2.0 | 5 | 3.5 | 5 |
| 25 | 40 | 34 | 40 | 3 | 41.7 | 40.0 | 20.5 | 2.0 | 5 | 3.5 | 5 |
| 28 | 43 | 37 | 43 | 3 | 44.7 | 42.5 | 21.5 | 2.0 | 5 | 3.5 | 5 |
| 30 | 45 | 39 | 45 | 3 | 46.7 | 42.5 | 21.5 | 2.0 | 5 | 3.5 | 5 |
| 32 | 48 | 42 | 48 | 3 | 49.7 | 42.5 | 21.5 | 2.0 | 5 | 3.5 | 5 |
| 33 | 48 | 42 | 48 | 3 | 49.7 | 42.5 | 21.5 | 2.0 | 5 | 3.5 | 5 |
| 35 | 50 | 44 | 50 | 3 | 51.7 | 42.5 | 21.5 | 2.0 | 5 | 3.5 | 5 |
| 38 | 56 | 49 | 56 | 4 | 57.7 | 45.0 | 24.0 | 2.0 | 6 | 4.0 | 6 |
| 40 | 58 | 51 | 58 | 4 | 59.7 | 45.0 | 24 | 2.0 | 6 | 4.0 | 6 |
| 43 | 61 | 54 | 61 | 4 | 62.7 | 45.0 | 24.0 | 2.0 | 6 | 4.0 | 6 |
| 45 | 63 | 56 | 63 | 4 | 64.7 | 45.0 | 24.0 | 2.0 | 6 | 4.0 | 6 |
| 48 | 66 | 59 | 66 | 4 | 67.7 | 45.0 | 24 | 2.0 | 6 | 4.0 | 6 |
| 50 | 70 | 62 | 70 | 4 | 71.7 | 47.5 | 25.0 | 2.5 | 6 | 4.0 | 6 |
| 53 | 73 | 65 | 73 | 4 | 74.7 | 47.5 | 25.0 | 2.5 | 6 | 4.0 | 6 |
| 55 | 75 | 67 | 75 | 4 | 76.7 | 47.5 | 25 | 2.5 | 6 | 4.0 | 6 |
| 58 | 78 | 70 | 78 | 4 | 80.5 | 52.5 | 28.0 | 2.5 | 6 | 4.0 | 6 |
| 60 | 80 | 72 | 80 | 4 | 82.5 | 52.5 | 28.0 | 2.5 | 6 | 4.0 | 6 |
| 63 | 83 | 75 | 83 | 4 | 85.5 | 52.5 | 28 | 2.5 | 6 | 4.0 | 6 |
| 65 | 85 | 77 | 85 | 4 | 87.5 | 52.5 | 28.0 | 2.5 | 6 | 4.0 | 6 |
| 68 | 90 | 81 | 90 | 4 | 92.5 | 52.5 | 28.0 | 2.5 | 7 | 4.0 | 6 |
| 70 | 92 | 83 | 92 | 4 | 94.5 | 60.0 | 34 | 2.5 | 7 | 6.0 | 8 |
| 75 | 97 | 88 | 97 | 4 | 100.5 | 60.0 | 34.0 | 2.5 | 7 | 6.0 | 8 |
| 80 | 105 | 85 | 105 | 4 | 108.5 | 60.0 | 34.0 | 3.0 | 7 | 6.0 | 8 |
| 85 | 110 | 100 | 110 | 4 | 113.5 | 60.0 | 34 | 3.0 | 7 | 6.0 | 8 |
| 90 | 115 | 105 | 115 | 4 | 118.5 | 65.0 | 39.0 | 3.0 | 7 | 10.0 | 8 |
| 95 | 120 | 110 | 120 | 4 | 123.5 | 65.0 | 39.0 | 3.0 | 7 | 10.0 | 8 |
| 100 | 125 | 115 | 125 | 4 | 128.5 | 65.0 | 39 | 3.0 | 7 | 10.0 | 8 |
