The Hexatech Close (Stork Type) is an ultra-compact, enclosed elastomer mechanical seal specifically engineered as a direct replacement for Stork-style and OEM-specific industrial centrifugal pumps. Featuring a fully encapsulated, low-profile rotary unit with an internal spring mechanism, it is designed to fit exceptionally tight stuffing boxes and shallow seal chambers where axial space is strictly limited.
Key Specifications & Features
Ultra-Short Axial Profile
Minimized operating length (ROTARY LENGTH & ST LENGHT) allows seamless integration into compact OEM pump housings without modifications.
Enclosed Spring Assembly
The internal coil spring is fully shielded within a pressed stainless steel outer casing, protecting it against debris accumulation, clogging, and mechanical damage.
Elastomer Drive Boot
Flexible elastomeric sleeve grips the shaft directly, eliminating shaft fretting, scoring, and the need for drive set-screws.
Bidirectional Operation
Symmetrical face and drive construction allows smooth, dependable sealing regardless of shaft rotation direction.
| SHAFT SIZE |
ROTARY OD |
ST.OD | ROTARY LENGTH |
ST.LENGTH |
|---|---|---|---|---|
| 12 | 24 | 26 | 11 | 8 |
| 12 | 24 | 26 | 12.8 | 8 |
| 1/2″ | 24 | 25.4 | 12.8 | 7.5 |
| 13 | 24 | 26 | 12.8 | 8 |
| 14S | 28 | 28.5 | 12.8 | 7.5 |
| 14L | 28 | 28.5 | 15.3 | 7.5 |
| 14 | 32 | 29.5 | 12.8 | 8 |
| 15 | 32 | 29.5 | 12.8 | 8 |
| 16R | 32 | 29.5 | 12.8 | 8 |
| 16 | 39 | 38 | 12.8 | 8 |
| 16 | 39 | 42 | 12.8 | 8 |
| 17 | 39 | 42 | 12.8 | 8 |
| 18 | 39 | 42 | 12.8 | 8 |
| 19 | 39 | 42 | 12.8 | 8 |
| 20 | 39 | 42 | 12.8 | 8 |
| 20S | 42 | 45 | 12.8 | 10 |
| 22 | 42 | 45 | 12.8 | 10 |
| 23 | 47 | 50 | 13.5 | 10 |
| 24 | 47 | 50 | 13.5 | 10 |
| 25R | 42 | 50 | 13.5 | 10 |
| 25 | 47 | 50 | 13.5 | 10 |
| 26 | 47 | 50 | 13.5 | 10 |
| 27 | 47 | 50 | 13.5 | 10 |
| 28 | 54 | 57 | 15 | 10 |
| 30 | 54 | 57 | 15 | 10 |
| 32 | 54 | 57 | 15 | 10 |
| 35 | 60 | 63 | 16 | 10 |
| 38 | 65 | 68 | 18 | 12 |
| 40 | 65 | 68 | 18 | 12 |
| 45 | 70 | 73 | 20 | 12 |
| 50 | 85 | 88 | 23 | 15 |
Specification:
| No. | DESCRIPTION | MATERIAL |
|---|---|---|
| 1 | Cup Gasket | NBR / HNBR / VITON |
| 2 | Stationary ring | Alumina ceramic/SIC |
| 3 | Rotary ring | Graphite carbon/SIC |
| 4 | Retainer | SUS304 |
| 5 | Bellows | NBR / HNBR / VITON |
| 6 | Closing ring | SUS304 |
| 7 | Spring | SUS304 |
| 8 | Spring seat | SUS304 |
Application:
| PARAMETER | SPECIFICATION |
|---|---|
| Pressure | 0.6MPa |
| Speed | 10M/S |
| Temperature | -30°C ~ 200°C |
