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Flanged spacers Factory

  • EPDM Flange Pad

    EPDM Flange Pad

    Product Specifications: DN15 (D20), DN20 (D25), DN25 (D32), DN32 (D40), DN40 ...

  • FPM Flange Pad

    FPM Flange Pad

    Product Specifications: DN15 (D20), DN20 (D25), DN25 (D32), DN32 (D40), DN40 (D5...

  • EPDM+PTFE Flange Pad

    EPDM+PTFE Flange Pad

    Product Specifications: DN15 (D20), DN20 (D25), DN25 (D32), DN32 (D40), DN40 ...

About us
Jiangsu Leiting Precision New Materials Co, Ltd
Jiangsu Leiting Precision New Materials Co, Ltd
Jiangsu Leiting Precision New Material Co., Ltd. (formerly Jiangsu Haobo Plastic Industry Co., Ltd.) is China Flanged spacers Manufacturer and Custom Flanged spacers Factory, located at No. 55 Haichuan Road, Dongtai City High-Tech Zone, Jiangsu Province. Established in 2008, the company now occupies an area of 19,980 square meters, with a total investment of 110 million RMB in its new facility.
We focus on pipeline applications for the solar panel, semiconductor, chemical, ironmaking, environmental protection, biochemical, aquarium/marine, and pharmaceutical manufacturing industries. Our goal is to establish ourselves as a high-tech enterprise integrating the production and sales of various valves, pipe fittings, and pipes, while driving technological innovation in the valve industry. As of December 2024, we hold 81 patents, including 36 invention patents, 36 utility model patents, and 9 design patents.
Guided by our R&D philosophy of "Technology Creates the Future," our quality principle of "Quality Creates the Market," and our marketing ethos of "Brand Creates Value," we remain committed to innovation and providing comprehensive, high-quality services to global customers.
Certificates
  • Honour Certificate for Integrity Managers
  • Honour Certificate for Integrity Entrepreneurs
  • AAA-level integrity management demonstration unit
  • AAA corporate credit rating certificate
  • AAA quality service integrity unit
  • AAA-level contract-abiding and trustworthy enterprise
  • AAA corporate credit rating certificate
  • Lei Ting National Inspection Report PPH Elbow D63
  • Lei Ting National Inspection Report PPH tube D63
  • A plug-in positioning butterfly valve
  • A resiliently driven compensating union valve
  • A pressure-locking butterfly valve
News
  • Can a check valve be installed vertically?

    Yes, a check valve can be installed vertically, but two critical conditions must be met: the fluid flow must be upward only, and a spring-assisted check valve must be used. Standard swing check valves without spring assistance are designed for horizontal installation only; forcing them into a vertical position will ca...

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  • Which Valve Is Easier to Install in Tight Spaces: Butterfly Valve or Ball Valve?

    When space is limited, butterfly valves are easier to install than ball valves. Their wafer or lug-style body clamps directly between two pipe flanges, requiring minimal face-to-face length and no extra support structures. For large-diameter plastic piping systems in particular, the butterfly valve's slim, lightweight...

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  • What Types of Plastic Valves Are Best for Corrosion-Resistant Piping Systems?

    Plastic valves are the right choice when your piping system handles corrosive fluids, requires lightweight components, or operates in environments where metal corrosion is a persistent problem. In conditions where pressure stays below 1.0 MPa and temperature below 95°C, plastic valves weigh only 30–40% of equivalent ...

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Flanged spacers Industry knowledge

What is a Flanged Spacer?

1. Definition: A flanged spacer is a metal or composite material gasket used in piping systems to connect flanges. It provides sealing, support, and positioning between two flanges, preventing leaks and absorbing vibration.

2. Structural Features: Common structures include flat gaskets, gaskets with locating rings, and gaskets with movable locating rings. Materials include flexible graphite, PTFE, and serrated metal, to adapt to different operating conditions, temperatures, pressures, and chemical media.

3. Applications: Widely used in piping systems in industries such as solar photovoltaic, semiconductors, chemicals, iron smelting, environmental protection, biochemistry, aquaculture, and pharmaceuticals, meeting the sealing requirements of high-temperature, high-pressure, or corrosive media.

How is a Flanged Spacer Positioned in Mechanical Assembly?

1. Flange Face Positioning

The flanged spacer is placed between the sealing surfaces of the two flanges. The center hole of the gasket is aligned with the pipe or bolt hole to achieve precise axial positioning.

2. Bolt Pre-tightening Positioning

By evenly tightening the bolts, the gasket is compressed and undergoes elastic deformation, creating a uniform sealing pressure. The bolt pre-tightening force simultaneously locks the gasket in position, preventing displacement during operation.

3. Locating Ring Assistance

For flanged spacers with locating rings, the rings directly engage with the flange flange, providing additional radial support and ensuring the gasket maintains accurate positioning even under high vibration or shock environments.

4. Vibration Isolation and Compensation

The flexible material of the gasket absorbs the thermal expansion and mechanical vibration of the pipeline, maintaining the relative position between the flanges and reducing the risk of leakage.