• Pumping Ring Efficiency: Features a high-flow internal pumping ring to circulate barrier fluid aggressively, removing heat generated by the seal faces.
• Tangential Ports: Gland ports are drilled tangentially to minimize flow resistance and maximize cooling efficiency.
Key Features
• Hydrocarbon Specialist: A robust double cartridge seal (similar to ISC2-BB or QB series) designed for light hydrocarbons, volatile organic compounds (VOCs), and crude oil services.
• Zero Emissions: Operates with a pressurized barrier fluid (API Plan 53A/B/C) to ensure zero leakage of hazardous hydrocarbons to the atmosphere.
• API 682 Compliant: Designed in accordance with API 682 Category 1 or 2 standards for safety and reliability in refinery environments.
Technical Specs | Materials | ||
Mediums | Water, oil and weakly-corrosive mediums | Stationary Ring | Carbon/Sic |
Pressure | ≤0.3MPa | Rotary Ring | Ceramic/Sic |
Temperature | -20℃ to 100℃ | Secondary Seal | NBR/EPDM/Viton |
Speed | ≤10m/s | Spring and Metal Part | Stainless Steel |
Product Specifications
| Model | Shaft | D2 | D3 | D7 | L1 | L2 | L4 |
| 10 | 10 | 24.0 | 29.0 | 23.0 | 7.0 | 6.0 | 4.0 |
| 12S | 12 | 28.6 | 32.0 | 25.0 | 8.0 | 5.2 | 5.0 |
| 12M | 12 | 30.0 | 35.0 | 24.0 | 8.0 | 5.0 | 5.0 |
| 12L | 12 | 33.4 | 38.0 | 25.0 | 6.7 | 6.3 | 5.0 |
| 16 | 16 | 36.5 | 41.5 | 31.0 | 8.0 | 6.8 | 5.0 |
| 16L | 16 | 38.1 | 43.5 | 31.0 | 8.0 | 6.8 | 5.0 |
| 16LD | 16 | 38.1 | 43.5 | 31.0 | 8.0 | 6.8 | 5.0 |
| 20S | 20 | 38.0 | 43.8 | 35.0 | 9.5 | 6.0 | 5.0 |
| 20 | 20 | 40.0 | 43.8 | 35.0 | 9.5 | 6.0 | 5.0 |
| 25S | 25 | 46.0 | 51.0 | 44.0 | 10.0 | 8.0 | 7.0 |
| 25M | 25 | 47.0 | 51.0 | 44.0 | 12.0 | 6.0 | 7.0 |
| 25L | 25 | 52.0 | 57.0 | 48.0 | 12.0 | 6.0 | 7.0 |
| 30 | 30 | 52.0 | 57.0 | 48.0 | 11.0 | 8.0 | 8.0 |
| 1/2" | 12.7 | 30.0 | 35.0 | 25.4 | 8.0 | 5.0 | 6.2 |
| 5/8" | 25.9 | 36.5 | 41.5 | 31.8 | 8.0 | 6.7 | 10.3 |
| 3/4" | 19.1 | 40.0 | 43.8 | 34.9 | 9.5 | 6.0 | 10.3 |
| 1" | 25.4 | 47.0 | 51.0 | 41.3 | 12.0 | 5.9 | 11.1 |
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 Booster: An LPG pump seal was freezing up due to vaporization. We installed this Double Hydrocarbon Seal with a Plan 53A glycol barrier system. The barrier fluid warmed the seal and prevented LPG flashing, ensuring safe operation.
Testimonials
We use these double seals on all our gasoline transfer pumps. No smells, no leaks, and they pass every EPA inspection.
—Terminal Manager, Oil Depot
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Do I need a Plan 53 system?
A: For volatile hydrocarbons, yes. A pressurized Plan 53 system ensures the barrier fluid pressure is higher than the pump pressure, preventing the hydrocarbon from leaking out or flashing across the faces.
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
