Double Mechanical Seals for Glass-Lined Reactors – Corrosion-Resistant Agitator Sealing Solutions
Engineered for glass-lined reactor agitators operating in highly corrosive chemical environments, our double mechanical seals provide robust, long-lasting sealing performance for harsh mediums such as concentrated hydrochloric acid. Featuring premium corrosion-resistant wetted materials and a dual-face barrier design, they deliver superior containment safety and operational reliability over standard single-face seals. We also support single-to-double seal on-site retrofits that match original equipment mounting dimensions without modification, allowing plants to upgrade sealing performance with minimal downtime and low retrofitting cost.
Centralized structure with highly universal parts and non-directional transmission
Mainly applied to shaft seals of enamel reaction kettles
Suitable for various strongly corrosive media with particles
Generally used in matching with a hydraulic pump station
Mediums: Strong acids, strong bases, HF & other highly corrosive media with particles
Pressure: PN-0.1~0.6MPa
Temperature: -10~180℃
Linear speed: <2m/s
| d | d1 | d0 | D | H | H1 | n-DN |
| 40 | 110 | 145 | 175 | 222 | 278 | 4-18 |
| 50 | 176 | 210 | 240 | 222 | 278 | 8-18 |
| 60 | 204 | 240 | 275 | 222 | 278 | 8-22 |
| 80 | 234 | 270 | 305 | 222 | 278 | 8-22 |
| 100 | 313 | 350 | 395 | 222 | 285 | 12-22 |
| 125 | 422 | 460 | 505 | 222 | 298 | 12-22 |
| 140 | 422 | 460 | 505 | 222 | 305 | 12-22 |
| 160 | 422 | 460 | 505 | 222 | 305 | 12-22 |
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.
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