Multiple Spring Mechanical Seals-APM23
Features
- API 682 Category 2 and 3, Type A, Arrangement 3 seal
- Dual seal in face-to-face arrangement
- Balanced
- Cartridge unit
- Stationary multiple springs
Typical Applications:
For equipment with rotating shafts handling non-film-forming media and conveying toxic, hazardous, flammable, or explosive substances.
- Refining technology
- Oil and gas industry
- Petrochemical industry
- Chemical industry
- Power plant technology
- CCUS
- Alternative fuels production
- Light volatile hydrocarbons
- LPG plants
- API 610 / ISO 13709 pumps
- Process pumps
Mediums:
Suitable for petroleum, chemical solutions, weak acids/alkalies, salts, refrigerants and fluids with low solids content.
Performance Capabilities:
Pressure: 0~ 6.0MPa
Temperature: -40 ~260°C
Linear Speed: ≤50 m/s
Material Selection:
Metallic Components:304、316L、2205、2507
Spring: 316L, Hastelloy C-276
Seal Rings: SSiC , WC、Graphite
Elastomer Options: FKM, FFKM, EPDM, NBR , OMNISEAL
This product can be an alternative to similar products such as EagleBurgmann LL9DSUU.
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Technical Features:
1.High-strength,High-performance seal materials for optimal performance.
2.Balanced design with precisely calculated face pressure ratio to reduce face load and minimize heat generation.
3.Stationary multiple springs design – minimizes centrifugal effects for consistent spring performance and reliable sealing.
4.Built-in flush circulation system – enhances fluid flow efficiency and optimizes seal operating conditions.
5.Large-cross-section sealing rings maintain floatability while enhancing sealing performance.
6.Highly reliable drive design effectively prevents slippage.
Solution Selection:
A barrier/buffer fluid system is required to provide lubrication and cooling for seal operation. The barrier fluid pressure is typically maintained 0.14~0.41 MPa above the seal chamber pressure.
For the inner seal, appropriate flush plans (Plan 11, 21, or 32) can be selected based on operating conditions. The barrier fluid system generally adopts Plan 53A or 53B, with Plan 54 also available as an option.