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Reverse Balanced Seal US-RB

Precision Mechanical Seal

Reverse Balanced Seal US-RB

Reverse Balanced Seal (US-RB)

The Reverse Balanced Seal US-RB is a precision-engineered mechanical seal designed for high-performance applications in pumps, agitators, mixers, and compressors. This seal is ideal for handling high-pressure and high-temperature environments where reliability is paramount. Its reverse balance design ensures superior sealing performance, even in cases of pressure fluctuations, preventing leakage and reducing wear.

Manufactured using premium materials, the US-RB seal offers excellent resistance to corrosion, chemical exposure, and abrasive fluids, making it suitable for use in industries like chemicals, pharmaceuticals, petrochemicals, and water treatment. Its compact design facilitates easy installation and maintenance, while the robust construction enhances the lifespan of equipment.

The Reverse Balanced Seal US-RB is available in a range of sizes and customizable options to meet diverse operational needs. With its proven efficiency and durability, the US-RB ensures optimized performance, safety, and cost-effectiveness in demanding industrial applications.

Pressure Up to 25 bar
Temperature -40°C to +260°C
Shaft Size 14mm - 100mm+
Speed Up to 3000 RPM
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Key Design Features

  1. Metal free contact part
  2. Reverse balanced design
  3. Can tolerate pressure reversal
  4. Substitutes US-RB bellow seal at higher pressures and temperature

Operating Range & Limits

  • Pressure : 6kg
  • Size: 25mm to 150mm
  • Temperature : Upto 280°C (Depending upon elastomer)
  • Speed : 2900 rpm

Materials of Construction

  • Metal Parts : SS316, Alloy-20, Hast-C
  • Elastomers : Viton,  Aflas
  • Stationary Face : SiC, TC, Ceramic
Quality & Inspection Assurance

Manufacturing Standards & Quality Inspection

Every mechanical seal is manufactured with optical-grade precision at our Mohan Nagar, Ghaziabad facility.

ISO 9001:2015 Certified

Manufactured in strict adherence to international quality management and material traceability.

Monochromatic Light Inspection

100% seal faces verified with optical flats under helium light (< 2 light bands flatness).

Hydrostatic Testing

Hydrostatically pressure-tested to 1.5x working pressure for zero operational leakage.

24-48 Hr Fast Dispatch

Emergency breakdown dispatch across Delhi NCR, Gujarat, Maharashtra, and worldwide.

Engineering FAQ

Reverse Balanced Seal US-RB - Frequently Asked Questions

The US-RB is designed to withstand internal stuffing box pressure while maintaining optimum seal face closing forces even under reverse pressure surges, vacuum, or varying suction conditions.

Its springs are isolated outside the process fluid, preventing particulate clogging, salt cake formation, and abrasive erosion of spring coils.

Widely used in sugar mills (syrup and massecuite pumps), fertilizer plants, chemical crystallization tanks, and pulp & paper processing.

Direct Factory Quotation

Request Quotation & Technical Fitment

Share your equipment specifications. Our engineering team will recommend the optimal seal metallurgy, face pairings, and provide a formal price quote within 2 business hours.

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