The Precision Mechanical Seal is a versatile, high-reliability shaft sealing solution engineered for standard industrial pumps, mixers, and rotary process equipment. Designed with a modular architecture accommodating multiple working lengths (Type-1, Type-2, and Type-3), this seal delivers exceptional operational flexibility while preventing fluid leakage under variable pressure and temperature conditions.
Key Specifications & Features
Modular Length Configurations
Available in three standardized working lengths (Type-1, Type-2, Type-3) to fit diverse stuffing box depths and equipment envelopes.
Elastomeric Bellows / Secondary Sealing
Integrates flexible elastomer bellows and static cup-mount rings that protect shafts from fretting and accommodate minor shaft misalignment.
Single-Coil Spring Mechanism
Heavy-duty, non-clogging spring design ensures consistent face-to-face contact pressure across varying operating pressures.
Premium Face Combinations
Features wear-resistant friction pairs (Carbon vs. Ceramic / Silicon Carbide) designed for dry-running resistance, thermal stability, and low friction losses.
| SEAL SIZE |
ROTARY OD |
ST.OD | TYPE 1 |
TYPE2 | TYPE 3 |
ST L |
|---|---|---|---|---|---|---|
| 14 | 24 | 25 | 15 | 29 | 34 | 6 |
| 15 | 25 | 26 | 15 | 29 | 34 | 6 |
| 16 | 26 | 27 | 15 | 29 | 34 | 6 |
| 18 | 32 | 33 | 20 | 31.5 | 39 | 6 |
| 20 | 34 | 35 | 20 | 31.5 | 39 | 6 |
| 22 | 36 | 37 | 20 | 31.5 | 39 | 6 |
| 24 | 38 | 39 | 20 | 34 | 44 | 6 |
| 25 | 39 | 40 | 20 | 34 | 44 | 6 |
| 28 | 42 | 43 | 26 | 36.5 | 44 | 6 |
| 30 | 44 | 45 | 26 | 35.5 | 43 | 7 |
| 32 | 46 | 48 | 26 | 35.5 | 48 | 7 |
| 33 | 47 | 48 | 26 | 35.5 | 48 | 7 |
| 35 | 49 | 50 | 26 | 34.5 | 47 | 8 |
| 38 | 54 | 56 | 30 | 37 | 47 | 8 |
| 40 | 56 | 58 | 30 | 37 | 47 | 8 |
| 43 | 59 | 61 | 30 | 37 | 52 | 8 |
| 45 | 61 | 63 | 30 | 37 | 52 | 8 |
| 48 | 64 | 66 | 30 | 35 | 50 | 10 |
| 50 | 66 | 70 | 30 | 37.5 | 50 | 10 |
| 53 | 69 | 73 | 30 | 37.5 | 60 | 10 |
| 55 | 71 | 75 | 30 | 37.5 | 60 | 10 |
| 58 | 78 | 78 | 33 | 42.5 | 60 | 10 |
| 60 | 80 | 80 | 33 | 40.5 | 58 | 12 |
| 63 | 83 | 83 | 33 | 40.5 | 58 | 12 |
| 65 | 85 | 85 | 33 | 40.5 | 68 | 12 |
| 68 | 88 | 90 | 33 | 40.5 | 68 | 12 |
| 70 | 90 | 92 | 33 | 48 | 68 | 12 |
| 75 | 99 | 97 | 40 | 48 | 68 | 12 |
| 80 | 104 | 105 | 40 | 47.5 | 77.5 | 12.5 |
| 85 | 109 | 110 | 40 | 47.5 | 77.5 | 12.5 |
| 90 | 114 | 115 | 40 | 52.5 | 77.5 | 12.5 |
| 95 | 119 | 120 | 40 | 52.5 | 77.5 | 12.5 |
| 100 | 124 | 125 | 40 | 52.5 | 77.5 | 12.5 |
Specification:
| No. | DESCRIPTION | MATERIAL |
|---|---|---|
| 1 | Cup Gasket | NBR / VITON |
| 2 | Stationary ring | Alumina ceramic / SIC |
| 3 | Rotary ring | Graphite carbon / SIC |
| 4 | Bellows | NBR / VITON |
| 5 | Retainer | SUS304 |
| 6 | Spring | SUS304 |
Application:
| PARAMETER | SPECIFICATION |
|---|---|
| Pressure | 0 ~ 1.2MPa |
| Speed | ≤ 15m/s |
| Temperature | -40°C ~ 150°C |
