Two-stage POMPETRAVAINI TRH - TRS - TRM - TRV – SA pumps can be equipped with either a mechanical shaft seal or gland packing. The advantage of these pumps is the reduced shaft length, which eliminates the risk of shaft deflection and mechanical seal vibration, thereby extending the service life of both the seals and bearings. All pumps are designed to accommodate standardized mechanical seals in accordance with DIN 24960. Upon request, versions with double mechanical seals (tandem or back-to-back) or cartridge-type mechanical seals are also available.
Mechanical seals can be manufactured from various materials. Therefore, for proper selection, it is recommended to contact the specialists of BTS Engineering.
| Pump type | Bearing | Mechanical seal | |||
| Quantity | Type | Grease quantity per bearing, g | Quantity | Shaft diameter, mm | |
| TRHE 32-4 | 1 | 6302.2RSR | --------- | 1 | 16 |
| TRHC e TRSC 32 TRHE 32-20/45/60 - TRSE 32 | 2 | 6304.2RSR | 2 | 22 | |
| TRHE 40-110 - TRSE 40 | 6305.2RSR | 2 | 28 | ||
| TRMB 25-30 |
1
1
|
6205.2RSR
6204.2RSR
|
1 | 22 | |
| TRMB 32-50 |
1
1
|
6305.2RSR
6205.2RSR |
24 | ||
| TRMB 32-75 |
1
1
|
6306.2RSR
6206.2RSR |
28 | ||
| TRMB 40-110 |
1
1
|
3208.2RSR
6206.2RSR |
35 | ||
| TRMB 40-150 |
1
1
|
3208.2RSR 6306.2RS |
35 | ||
| TRVB 40-110/150 | 2 | 6208.2RSR | 35 | ||
| TRMB 40-200 e 50-300 |
1
1
|
3210.2RSR
6308.2RSR |
45 | ||
| TRVB 40-200 e 50-300 |
1
1
|
6210.2RSR
6208.2RSR |
45 | ||
|
TRHC e TRSC 40 - TRHE 40-140/190
TRSC e TRSE 50 |
2 | 6306.2RSR | 35 | ||
| TRHB 50 - TRVA 50 e 65 | 2 | 6308 | 20 | 43 | |
| TRHB/C 80 - TRSB/C 100 | 2 | 6310 | 35 | 55 | |
| TRHE 100 - TRSE 125 |
1
1
|
6314
NU 314 |
50 | 75 | |
| TRHA 150 - TRSA 200 |
2
1
|
7320B.MB.UA
22320ES.TVPB.C3 |
180 | 110 | |
Important! Mechanical seals must never operate dry, i.e. without sealing or flushing liquid. Dry running causes the sliding faces and elastomer components to seize, resulting in irreversible damage. It is recommended to inspect the wear of the contacting surfaces of the mechanical seals approximately every 4,000 operating hours.
