Structure Features :
The mechanical seal size complies with API 682. The mechanical seal adopts a single-end face, multiple springs, and a balanced cartridge structure. The end face load is uniform, the rotation direction is not limited, and the installation is convenient and reliable. The flushing scheme can adopt PLAN 11 + 61 (62), of which PLAN 11 adopts a multi-point flushing structure.
Operating Range:
Mediums: suitable for petroleum, chemical industry, and liquefied petroleum gas, weak acid, alkali salt, and medium with a small amount of particles.
Pressure: ≤4Mpa
Temperature: ≤-40℃~220℃
Linear Speed: ≤20m/s
| Shaft Dia. | d1 | d2 | d3 | d4 | d5 | L | L1 | L2 | L3 | L4 |
| 20 | 20 | 70 | 105 | 129 | 14 | 96 | 50 | 28 | 50 | 5 |
| 30 | 30 | 80 | 115 | 139 | 14 | 98 | 55 | 28 | 52 | 5 |
| 40 | 40 | 90 | 125 | 149 | 14 | 98 | 60 | 28 | 52 | 5 |
| 50 | 50 | 100 | 140 | 168 | 18 | 115 | 55 | 34 | 58 | 5 |
| 60 | 60 | 120 | 160 | 188 | 18 | 123 | 60 | 40 | 60 | 5 |
| 70 | 70 | 130 | 170 | 198 | 18 | 123 | 65 | 40 | 60 | 5 |
| 80 | 80 | 140 | 180 | 208 | 18 | 128 | 70 | 45 | 60 | 5 |
| 90 | 90 | 160 | 205 | 238 | 22 | 128 | 65 | 45 | 60 | 5 |
| 100 | 100 | 170 | 215 | 248 | 22 | 128 | 70 | 41 | 65 | 5 |
| 110 | 110 | 180 | 225 | 258 | 22 | 128 | 75 | 41 | 65 | 5 |
A: We deliver customized sealing solutions to diverse industrial sectors,including:
·Oil and Gas
·Refining
·Chemical and Petrochemical
·Water and Wastewater Treatment
·Pharmaceutical
·Power Generation
·Marine
Our products are designed to perform reliably in demanding environments across multiple industries.
A: HQ Seals provides custom sealing solutions customized for your working conditions. We manufacture seals according to:
· Technical drawings
· Physical samples
· Special material & performance specifications
· Non-standard sizes
We maintain close communication with clients to guarantee all finished products satisfy operational and environmental requirements.
A: First, identify the optimal configuration (single or double seal) according to the process fluid. Then verify operating parameters — pressure, temperature and shaft speed — to select the appropriate seal type and materials. Lastly, confirm available installation dimensions, and opt for either a component or cartridge seal subject to customer requirements and relevant standards. Seal selection is normally carried out by qualified technicians.
A: For mechanical seals that have been stored for a long period: we can grind the rotating and stationary rings, replace secondary sealing O-rings, conduct air tightness testing and issue the pressure test report.
We can provide on-site installation guidance service. For failed mechanical seals, we are able to deliver failure analysis reports.
A: Yes, repairs are available. Depending on the damage condition of the mechanical seal, we classify the overhaul into Level 1, Level 2 and Level 3 repair.
EN
