Dry Gas Mechanical Seal
Designed for high-speed turbo expanders, our Dry Gas Mechanical Seal uses a gas film to separate the rotating and stationary rings. Spiral grooves machined on the rotating ring pump gas during rotation, forming a 3–8 μm thick gas film. This prevents direct contact, eliminating mechanical wear and ensuring long-term reliability for high-speed equipment.
- Product Introduction
Technical Parameters
|
Parameter |
Value |
|
Product Name |
Dry Gas Mechanical Seal |
|
Applicable Medium |
Nitrogen, natural gas, synthesis gas, carbon dioxide, clean process gas |
|
Operating Temperature |
-120°C – 380°C |
|
Operating Pressure |
0.6 – 10.0 MPa |
|
Shaft Speed Range |
6,000 – 60,000 r/min |
|
Seal Gas Film Thickness |
3 – 8 μm |
|
Face Material |
Silicon carbide, cemented carbide, surface-modified alloy |
|
Single Face Leakage |
≤ 0.2 Nm³/h |
|
Design Life |
≥ 3 years continuous operation |
Key Advantages
1. Non-Contact Gas Film Operation
Designed for high-speed turbo expanders, our Dry Gas Mechanical Seal uses a gas film to separate the rotating and stationary rings. Spiral grooves machined on the rotating ring pump gas during rotation, forming a 3–8 μm thick gas film. This prevents direct contact, eliminating mechanical wear and ensuring long-term reliability for high-speed equipment.
2. Near-Zero Leakage and Clean Operation
The seal delivers extremely low leakage, with single face leakage ≤0.2 Nm³/h. No oil is required, preventing contamination of the process medium. Operating from -120°C to 380°C and pressures up to 10 MPa, it is ideal for clean gas applications such as nitrogen, natural gas, and synthesis gas expanders.
3. Super Precision Sealing Faces
Spiral grooves are laser-machined, and rotating/stationary faces are super-precision ground. This guarantees consistent sealing performance. Each Dry Gas Mechanical Seal can be customized for the customer's shaft diameter and speed. We provide full support including installation, commissioning, and after-sales service.
FAQ
- Gas film thickness: 3–8 μm
- Design life: ≥3 years
Choose our Dry Gas Mechanical Seal for high-speed, zero-leakage, clean gas applications.
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