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China 108U Series Mechanical Seal Suppliers - Factory Direct Single Face Seal for Chemical Pumps
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China 108U Series Mechanical Seal Suppliers - Factory Direct Single Face Seal for Chemical Pumps

Introducing the 108U Series Mechanical Seal, a premium product from a leading factory in China, designed to meet international standards and specifications. This universal mechanical seal features an internal mounting, single-face, single-spring, unbalanced design, making it suitable for shaft diameters between 35mm and 70mm. It operates efficiently at pressures up to 0.8MPa and temperatures ranging from -20°C to 120°C, ensuring reliable sealing for a variety of media, including water, oil, acids, alkalis, and organic solvents. With its straightforward construction and dependable performance, the 108U Series Mechanical Seal is an ideal choice for businesses seeking trusted suppliers in China
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    Product Details

    Product Introduction

    The 108U mechanical seal is a typical single-spring unbalanced mechanical seal designed for highly corrosive pumps. This seal structure complies and is widely applicable across various pump types, particularly for demanding highly corrosive conditions in industries such as petrochemicals, refining, and chemical processing. Its single-face, single-spring design ensures a compact structure that is straightforward to install and maintain.

    Performance parameters for the 108U mechanical seal include: operating pressure not exceeding 0.8MPa, operating temperature range from -20°C to 120°C, rotational speed not exceeding 3000r/min, and applicable shaft diameter range from 35mm to 70mm. These specifications enable the 108U to adapt to diverse operational environments and pump requirements.

    Furthermore, the 108U mechanical seal features: a single-spring configuration where the spring transmits torque, with spring rotation direction dependent on the pump shaft rotation; excellent wear and corrosion resistance for harsh environments; simple construction, low cost, broad applicability, and reliable, stable performance.

    Owing to its outstanding wear and corrosion resistance, the 108U mechanical seal finds extensive application across industries including petrochemicals, oil refining, chemical processing, synthetic fibres, water treatment, and chemical transfer.

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    Features
    ①
    The 108U mechanical seal employs a single-spring configuration, with torque transmitted via the spring whose rotation direction correlates with the pump shaft rotation. It exhibits excellent wear and corrosion resistance, rendering it suitable for demanding operating conditions. Its straightforward construction, cost-effectiveness, and widespread adoption ensure reliable and stable performance.
    ②
    The seal's core components, particularly the friction pair faces, undergo precision machining and lapping to guarantee superior sealing performance. The product complies with multiple international and national standards, including ISO 3069, GB 6556, and DIN 24960, guaranteeing dimensional accuracy, universality, and interchangeability throughout the manufacturing process.
    ③
    This series of seals typically employs spring-transmitted torque (via a hook spring drive), a structure renowned for its reliable transmission. It is important to note that this design fixes the seal's rotational direction; therefore, the pump shaft's rotation must be carefully considered during installation.
    ④
    The single-spring (large spring) design offers superior resistance to clogging compared to multi-spring configurations, making it more suitable for media containing fine particles. Additionally, the single-face design results in a relatively simple structure, contributing to cost reduction and ease of maintenance.
    Frequently Asked Questions
    Q What is the maximum operating pressure of the 108U mechanical seal?
    The 108U mechanical seal is rated for an operating pressure not exceeding 0.8 MPa. It is designed to handle highly corrosive media under moderate pressure conditions, making it well-suited for petrochemical and chemical processing applications.
    Q What temperature range is the 108U mechanical seal suitable for?
    The 108U mechanical seal operates within a temperature range of -20°C to 120°C, allowing it to function reliably in both sub-zero and elevated-temperature industrial environments.
    Q Which international standards does the 108U mechanical seal comply with?
    The 108U mechanical seal complies with multiple international and national standards, including ISO 3069, GB 6556, and DIN 24960. These certifications ensure dimensional accuracy, universality, and full interchangeability during manufacturing and replacement.
    Q Does the rotation direction of the pump shaft affect the 108U seal installation?
    Yes. The 108U uses a hook spring drive to transmit torque, which fixes the seal's rotational direction. Therefore, it is essential to verify the pump shaft's rotation direction before installation to ensure proper sealing performance and avoid premature failure.
    Q Is the 108U mechanical seal suitable for media containing fine particles?
    Yes. The single large-spring design of the 108U provides superior resistance to clogging compared to multi-spring designs. This makes it more suitable for handling media that may contain fine particles or suspended solids.
    Q In which industries is the 108U mechanical seal commonly used?
    The 108U mechanical seal is widely used across multiple industries, including petrochemicals, oil refining, chemical processing, synthetic fibres, water treatment, and chemical transfer. Its excellent corrosion resistance and reliable performance make it a preferred choice for demanding pump applications.