• Zero-Emission Assurance: The triple arrangement allows for cascading pressure drops or high-pressure barrier fluids, ensuring absolutely no process fluid reaches the atmosphere.
• Cartridge Assembly: Despite the complexity of three seals, it installs as a single cartridge unit, simplifying maintenance on complex multi-stage pumps.
Key Features
• Triple Seal Safety: Features three sealing stages (Process, Barrier, Atmospheric) for ultimate redundancy in critical hydrocarbon services.
• Sleeve-Mounted: All rotating components are pre-mounted on a shaft sleeve, protecting the pump shaft and ensuring perfect alignment of all three seals.
• API 682 Logic: Designed following API 682 principles for Arrangement 3 seals, using a barrier fluid to ensure zero emissions.
Technical Specs | Materials | ||
Mediums | Water, oil, weak acids, weak alkali, etc. | Stationary Ring | Carbon/Sic/TC |
Temperature | -20℃ to 180℃ | Rotary Ring | Sic/TC/SUS304 |
Pressure | ≤0.8MPa | Secondary Seal | ≤15m/s |
Speed | NBR/EPDM/Viton | Spring and Metal Part | Stainless Steel |
Product Specifications
| Metric Shaft D1 | Size Code | D3 | D7 | L1 | L4 |
| 15.8 | 0158 | 27.0 | 28.5 | 19.1 | 6.3 |
| 16.0 | 0160 | 27.0 | 28.5 | 19.1 | 6.3 |
| 19.1 | 0191 | 30.0 | 31.7 | 19.1 | 6.3 |
| 24.0 | 0240 | 34.1 | 35.4 | 19.1 | 7.6 |
| 28.0 | 0280 | 40.0 | 42.0 | 19.1 | 7.6 |
| 28.6 | 0286 | 39.5 | 41.2 | 19.1 | 7.6 |
| 30.0 | 0300 | 41.0 | 42.7 | 19.1 | 7.6 |
| 31.7 | 0317 | 42.4 | 44.2 | 19.1 | 7.6 |
| 32.0 | 0320 | 42.4 | 44.4 | 19.1 | 7.6 |
| 35.0 | 0350 | 45.5 | 47.6 | 19.1 | 7.6 |
| 38.0 | 0380 | 51.8 | 53.9 | 21.1 | 8.1 |
| 44.4 | 0444 | 58.2 | 60.3 | 21.1 | 8.1 |
| 47.6 | 0476 | 61.4 | 63.5 | 21.1 | 8.1 |
| 50.0 | 0500 | 61.9 | 63.9 | 21.1 | 8.1 |
| 50.8 | 0508 | 64.6 | 66.6 | 22.1 | 9.6 |
| 53.9 | 0539 | 71.0 | 73.0 | 22.1 | 9.6 |
| 54.0 | 0540 | 71.0 | 73.9 | 22.1 | 9.6 |
| 54.6 | 0546 | 72.0 | 75.0 | 22.1 | 9.6 |
| 55.0 | 0550 | 72.0 | 75.0 | 22.1 | 9.6 |
| 63.0 | 0630 | 79.3 | 83.0 | 25.8 | 9.1 |
| 63.5 | 0635 | 79.3 | 88.9 | 25.8 | 9.1 |
| 69.8 | 0698 | 88.9 | 95.2 | 25.8 | 9.1 |
| 73.0 | 0730 | 94.0 | 98.4 | 25.8 | 9.1 |
| 75.0 | 0750 | 96.0 | 100.4 | 25.8 | 9.1 |
Workshop
This workshop is equipped with professional processing equipment and integrated with standardized material warehousing management, enabling a one-stop production process from precision machining to finished product delivery. It ensures part machining accuracy and production efficiency, meeting various high-specification manufacturing requirements.
Product Research, Development and Testing
Our Product R&D and Testing focuses on optimizing seal performance through advanced simulation and material analysis. All seals undergo rigorous trials, including thermal cycling and pressure tests, to ensure durability, minimal leakage, and long service life in demanding industrial environments.
Industry Solutions
Case Study
LPG Pipeline Pump: A pipeline station required zero emissions for an LPG booster pump. We engineered this Triple O-Ring Sleeve Seal. The barrier system maintained pressure, and the triple redundancy provided the safety factor required by local regulations.
Testimonials
For our most critical hydrocarbon lines, we use this triple seal. The sleeve design saves our shafts and the safety factor is unmatched.
—Operations Director, Pipeline Co.
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Why a triple seal instead of a double?
A: Triple seals are used in extreme safety cases where a backup to the backup is required, or where different barrier fluids are needed for different stages (e.g., one for cooling, one for isolation). It offers the highest level of risk mitigation.
Our company is specialized in the production of sealing materials, mechanical seals , cartridge seals.
E-mail: gechacha@aliyun.com
Mobile: +86-18758835650
WhatsApp: +86-18758835650
Add: No8-2, Jinsha road Yuelin Street, Fenghua District, Ningbo, Zhejiang
