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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
  • PVC Screw Plug Buyer's Guide: Threads, Sizes, Torque Ratings and Sealing

    A 1-inch PVC screw plug costs less than a coffee, yet the wrong one can split the threaded boss on a filter housing and take a line down for a shift. On a dosing skid or a water-treatment header, that small threaded part is often the last thing specified and the first thing to leak. The specification sheet matters far...

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  • PVC Gasket Selection Guide: Media, Temperature, Compression and Leak Control

    A 110 mm PVC flange on a brine line starts weeping three weeks after commissioning. The bolts feel tight, the pipe is sound, and the gasket matched the size on the drawing. In most cases like this, the gasket itself is not faulty — the selection is. An EPDM pad went onto a stream carrying oil mist, a full-face gasket ...

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  • Plastic Flange Guide: PPH, PPN and PVDF Types, Gaskets and Installation

    When a plastic flange weeps at the bolt circle, the flange body is usually the last component to blame. On most PPH, PPN and PVDF lines the leak starts with the gasket, the bolt load or the alignment of the two faces, not with the moulded part. That order of causes matters, because it tells you what to specify before ...

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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.