H75VA4-S
H75VA4-S
| Item | Description |
| 1.1.1 | Seal ring |
| 1.1.2 | Driver |
| 1.1.3 | Thrust ring |
| 1.1.4, 1.3, 3, 6 | O-Ring |
| 1.1.5, 8 | Spring |
| 1.1.6, 13 | Set screw |
| 1.2 | Mating ring |
| 2 | Seal sleeve |
| 4 | Gland plate |
| 5 | Flow distributor |
| 7 | Throttle ring |
| 9 | Disc |
| 10 | Setting device |
| 11 | Hexagon bolt |
| 12 | Set ring |
F Flush
Q Quench
D Drain
H75VA4-S
Features
- API 682 Category 2 and 3, Type A, Arrangement 1 seal
- Single seal
- Balanced
- Cartridge unit
- Bi-directional design
- Rotating multiple springs
- Integrated pumping device available
- Replaces the H75VN seal
Advantages
- Compact design
- 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
- Metal parts also in special materials available
Materials
Seal ring: Blister resistant carbon,
Silicon carbide SSiC (Q1), RBSiC (Q2)
Mating ring:
Silicon carbide SSiC (Q1), RBSiC (Q2)
Secondary seals:
EPDM (E), NBR (P), FKM (V), FFKM (K)
Springs: Hastelloy® C-276 (M5)
Metal parts: CrNiMo steel 316 (G) or equivalent, optional materials on request.
Silicon carbide SSiC (Q1), RBSiC (Q2)
Mating ring:
Silicon carbide SSiC (Q1), RBSiC (Q2)
Secondary seals:
EPDM (E), NBR (P), FKM (V), FFKM (K)
Springs: Hastelloy® C-276 (M5)
Metal parts: CrNiMo steel 316 (G) or equivalent, optional materials on request.
Standards and approvals
- API 682 / ISO 21049
- API 682 4th ed. Cat. 2/3 - 1CW-FL
Recommended applications
- Refining technology
- Oil and gas industry
- Petrochemical industry
- Chemical industry
- Power plant technology
- CCUS
- Hydrogen
- Sustainable plastics production
- Alternative fuels production
- Nuclear power technology
- Highly volatile hydrocarbons
- LPG plants
- API 610 / ISO 13709 pumps
- Process pumps
Recommended piping plans
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