• Distributed Flush: Multi-port flush injection ensures uniform cooling of the seal faces (API Plan 11), preventing hot spots and coking.
• Heavy Duty Faces: Uses thick-section seal faces to resist thermal distortion under pressure.
Key Features
• API 682 Type A: A single pusher cartridge seal designed to meet the requirements of API 682 Type A for hydrocarbon services.
• General Refinery Duty: Ideal for diesel, jet fuel, naphtha, and other non-flashing hydrocarbons in refinery and petrochemical transfer pumps.
• Floating Bushing: Includes a close-clearance throttle bushing in the gland to restrict leakage in case of catastrophic seal failure, adding a layer of safety.
Technical Specs | Materials | ||
Mediums | Water, oil and weakly-corrosive mediums | Stationary Ring | Ceramic/Sic/TC |
Pressure | ≤0.5MPa | Rotary Ring | Carbon/Sic/TC |
Temperature | -20℃ to 100℃ | Secondary Seal | NBR/EPDM/Viton |
Speed | ≤10m/s | Spring and Metal Part | Stainless Steel |
Product Specifications
| D1 (inch) | Size Code | D3 | D7 | L1 | L4 |
| 0.500 | 0127 | 23.3 | 25.4 | 16.86 | 6.35 |
| 0.500A | 0127A | 23.3 | 25.4 | 16.86 | 7.93 |
| 0.625 | 0158 | 30.1 | 31.75 | 18.44 | 10.31 |
| 0.750 | 0191 | 33 | 34.93 | 18.44 | 10.31 |
| 0.875 | 0222 | 36.3 | 38.1 | 20.82 | 10.31 |
| 1.000 | 0254 | 39.42 | 41.28 | 20.82 | 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
Diesel Transfer: Replaced standard component seals with these API-style cartridges on a diesel pipeline. The robust cartridge design eliminated installation variability and the Carbon/SiC faces provided 3 years of leak-free service.
Testimonials
A solid, compliant seal for our non-critical hydrocarbon loops. Good price and excellent documentation.
—Rotating Equipment Engineer, Refinery
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Is this suitable for flashing hydrocarbons?
A: For fluids that flash to gas (like propane), a single seal is risky. We recommend upgrading to a dual pressurized seal or ensuring the seal chamber pressure is maintained well above vapor pressure (API Plan 11/13).
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
