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Multispring Balanced Seal US P-31

This Multispring Balanced Seal US P-31 is designed for superior sealing in pumps, agitators, compressors, and other rotating equipment. Its balanced design is made to minimize face wear, thus enhancing reliability and operational life. The multispring configuration ensures that the face is loaded uniformly; hence, the sealing performance is consistent even in conditions of high pressure and variable temperature.

Manufactured using premium-grade materials, the US P-31 is resistant to wear, corrosion, and extreme conditions. This makes it suitable for applications involving aggressive chemicals, high speeds, and abrasive media. Its compact design allows for easy installation and maintenance, reducing equipment downtime and operational costs.

This seal is suitable for chemical processing, petrochemical, pharmaceutical, and food processing industries. Multispring Balanced Seal US P-31 has a strong construction and dependable sealing performance, making it a good choice for demanding industrial applications requiring dependable sealing solutions.

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Key Features

Non clogging
Spring protected
Inherently balanced
Bidirectional design
No shaft fretting
Fits on ANSI, ISO & DIN pumps
Special designs for sterile duty

Operating Range

Pressure : Upto 25kg
Size: 25mm to 150mm
Temperature : - 40°C TO 280°C* (Depending upon elastomer)
Speed : 2900 rpm

Materials

Metal Parts : SS316, Alloy-20, Hast-C, CD4MCU
Elastomers : Viton, Aflas, Silicon, Neoprene, Nitrile, EPR, PTFE, FFKM, STV
Rotary Face : SiC, TC, Carbon
Stationary Face : SiC, TC, Ceramic

Products FAQ`s

1. What are mechanical seals and why are they important?

Mechanical seals prevent leakage of liquids or gases between a rotating shaft and a stationary housing in equipment such as pumps, compressors, and mixers. They help maintain process efficiency, reduce maintenance costs, and protect equipment from contamination or fluid loss.

2. What type of applications are US-TB and US-TBR mechanical seals used for?

US-TB and US-TBR seals are designed for handling highly corrosive and chemically aggressive fluids. They are commonly used in chemical processing plants, fertilizer industries, acid handling systems, and pumps operating with reactive or corrosive media.

3. What is the difference between US-TB and US-TBR mechanical seals?

The US-TB seal features a replaceable rotary seal face, allowing easier maintenance and replacement. The US-TBR version uses an integral rotary face design, providing a compact structure suitable for certain corrosive applications.

4. What materials are used in US-TB / TBR mechanical seals?

These seals are manufactured using chemically resistant materials such as PTFE and GFT composite bellows, Silicon Carbide, Ceramic, Carbon, and corrosion-resistant metals like SS316 and Hastelloy C.

5. What operating conditions can these seals handle?

US-TB / TBR mechanical seals are designed for shaft sizes from 19 mm to 100 mm, temperatures from −45°C to 120°C, and speeds up to 2900 rpm, depending on application requirements.

6. Are these mechanical seals suitable for corrosive chemicals?

Yes. The seals are specifically designed for extremely corrosive environments. The use of PTFE based bellows and chemically inert materials makes them suitable for acids, salts, oxidizing agents, and reactive organic compounds.

7. Can these seals be customized for specific equipment?

Yes. Unique Seal Engineering Co. provides customization based on shaft size, operating pressure, temperature, and process fluid to ensure proper sealing performance for different industrial applications.

8. How can I request a quote or technical assistance?

You can request a quote by submitting the inquiry form on this page or contacting our technical team with details such as shaft size, operating conditions, and the type of fluid being handled.

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