Features mechanical seal h75vk
- Dual seal
- Cartridge unit
- Design acc. to API 682 / ISO 21049
- Category 2/3, Type A, Arrangement 2 or 3
- Bi-directional design available
- Rotating multiple springs
- Integrated pumping device available
- Suitable for pressure reversals
Advantages mechanical seal h75vk
- Fits to any seal chamber
- Universally applicable both for retrofits or original equipment
- Efficient stock-keeping due to standardized components
- Extended selection of materials
Extended field of operation in terms of temperature and pressure - Optimized torque transmission
- Metal parts also in special materials available
- Safe operation due to metal torque transmission at the rotating seat
Operating range mechanical seal h75vk
- Shaft diameter:
d = 20 … 110 mm (0.79″ … 4.33″)* - Pressure: p1 = 40 bar (580 PSI)
- Temperature:
t = -40 °C … +220 °C (-40 °F … 428 °F) - Sliding velocity: vg = 23 m/s (75 ft/s)
- Axial movement: ±2.0 … 4.0 mm depending on diameter and installation situation
* Other sizes on request
Materials mechanical seal h75vk
- Seal face: Carbon graphite antimony impregnated (A), Silicon carbide (Q1, Q2)
- Seat: Silicon carbide (Q1, Q2)
- Secondary seals: EPDM (E), NBR (P), FKM (V), FFKM (K)
- Springs: Hastelloy® C-4 (M)
- Metal parts: CrNiMo steel (G), Duplex (G1), Hastelloy® C-4 (M)
| Item | Description |
| 1.1.1, 2.1.1 | Seal face |
| 1.1.2, 2.1.2 | Driver |
| 1.1.3, 2.1.3 | Thrust ring |
| 1.1.4, 2.1.4, 1.3, 2.3 | O-Ring |
| 1.1.5, 2.1.5 | Sleeve |
| 1.1.6, 2.1.6 | Spring |
| 1.1.7, 16 | Set screw |
| 1.2, 2.2 | Seat |
| 3 | Shaft sleeve |
| 4 | Key |
| 6 | Adapter |
| 8 | Washer |
| 9 | Pin |
| 11 | Housing |
| 12 | HSH cap screw |
| 13 | Assembly fixture |
| 14 | Hexagon bolt |
| 15 | Set ring |
Recommended applications seal h75vk
- Oil and gas industry
- Refining technology
- Petrochemical industry
- Power plant technology
- Light volatile and highly viscous hydrocarbons
- API 610 / ISO 13709 pumps
- Process pumps
