John Crane 58B Series
Category:Chemical Pump Seal Series
1. Containerized,
2. Single-face mechanical seal
3. Multi-spring
Detailed introduction
Key selling points: Specifically designed for desulfurization applications + Highly resistant to corrosion and abrasion + Modular and easy to install + Compatible with multiple specifications
The John Crane 58B series mechanical seals are specially designed for flue gas desulfurization environments characterized by high corrosion and high wear! Featuring exceptional corrosion and wear resistance, these seals are well-suited to complex operating conditions across a wide range of industries, making them the preferred sealing solution for industrial applications.
✅ Core Advantages and Parameters
▶ Exceptionally corrosion-resistant: The sealing ring is made of pressureless-sintered silicon carbide (SSIC), and the substrate can be selected from materials such as SUS316L, 2205, and 2507, offering excellent resistance to chloride ions and erosion by gypsum slurries.
▶ High Reliability: Designed through computer simulation of operating conditions, offering a longer service life and free replacement or repair during the warranty period.
▶ Operating parameters: Pressure 0–3.0 MPa, temperature 0–200℃, solid content ≤30%, suitable for media containing high levels of impurities such as gypsum and lime slurry.
✅ Structural Features and Specifications
▶ Single-end face modular design with built-in bearings for easy installation; external springs do not come into contact with the medium; a multi-spring design enhances stability and supports rotation in either direction.
▶ Shaft diameter specifications: 60mm, 80mm, 100mm, 120mm—precisely tailored to meet the needs of various devices.
✅ Applicable scenarios
▶ Main application scenario: Side-mounted agitator for flue gas desulfurization absorption towers in coal-fired power plants;
▶ Expansion areas: Reactors and mixers for the chemical and paper industries, as well as power plants, steel mills, water treatment plants, smelters, pharmaceutical factories, and more.
🔥 The exclusive choice for desulfurization conditions
Specifically designed for harsh desulfurization environments, this product offers stable performance and a long service life, making it a reliable sealing solution for high-corrosion and high-abrasion conditions across multiple industries!
Applicable host
Product Features
Use parameters
1. Media: Oil, water, non-crystalline weak acids, bases, and organic solvents
2. Operating pressure: 0~2.6 MPa
3. Operating temperature: -20~250°C
4. Linear velocity: ≤15 m/s
Keywords：John Crane 58B Series
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Plan 23
Core positioning: A single-face seal self-flushing solution specifically designed for hot-water pumps. The medium is guided out of the self-sealing cavity, cooled, and then returned to the sealing face, achieving integrated self-circulation for flushing and cooling without the need for additional medium replenishment.
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Plan 53A
Reason for adoption: Isolate the process fluid. Zero discharge of the process fluid.
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Plan 53B
Reason for adoption: Isolation of process liquids; zero discharge of process fluids; pressure exceeding the 53A scheme.
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Plan 53C
Reason for adoption: Isolate the process fluid. Achieve zero discharge of the process fluid. Pressure exceeds the 53A design specification. Dynamically monitor system pressure.
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