
Product Name: Non-metallic Compensator (Non-metallic Expansive Joint) Nominal Bore: Round: DN200 to DN7000 (mm); Rectangular: Any size Design Pressure: ≤±300 KPa Design Temperature: ≤1300℃ Connection Type: Flange/Welding Compensation Quantity: Axial ±300, Lateral ±200 (mm) Structure Type: External Pressure Edge Type
Non-metallic compensators (non-metallic expansion joints) skin/strip materials: silicone rubber-coated glass fabric, fluororubber-coated glass fabric, polytetrafluoroethylene film glass fabric,三元乙丙橡胶coated glass fabric, nitrile rubber coated glass fabric, polytetrafluoroethylene film, etc., single-layer or multi-layer composite materials; ceramic fiber fire-resistant fabric, aluminum silicate wool, stainless steel wire fiber fabric, glass fiber fabric, etc.
Non-metallic compensators are composed of flexible compensating elements, flanges or outlets, thermal insulation materials, and bolts with rods, enabling significant axial, angular, and lateral displacements within a small size range. They feature no thrust, with the main material being glass fiber fabrics and their coated products, without force transmission. The use of non-metallic compensators simplifies design, avoids the need for large supports, and saves a substantial amount of materials and labor. Furthermore, they serve as noise and vibration reduction devices (the fiber fabrics and thermal insulation cotton inherently have sound-absorbing and vibration-reducing properties, effectively reducing noise and vibration in systems like boilers and fans). They also offer excellent resistance to high temperatures, corrosion, and sealing properties, achieved through coating with high polymer materials like silicone and fluorine, ensuring superior resistance to high temperatures, corrosion, and sealing. They are easy to install and maintain.
Non-metallic compensator (non-metallic expansion joint) performance features:
Non-metallic compensators are primarily composed of flexible compensating elements (non-metallic materials), end connection parts (flanges or pipe ends), adjusting elements (threaded rods), and thermal insulation materials. They are mainly used for pipeline systems conveying dust, gases, flue gases, coal gas, and other gases, to compensate for displacement caused by temperature changes, mechanical vibrations, and foundation settlement.
• Compensation for thermal expansion: Non-metallic compensators (non-metallic expansion joints) can provide greater multidirectional compensation within a smaller size range.
• Compensate for Installation Errors: Due to system errors inherent in pipeline connections, non-metallic compensators (non-metallic expansion joints) can effectively eliminate installation errors.
• Sound and Vibration Dampening: Fiber fabrics and thermal insulation cotton inherently possess sound absorption and vibration isolation properties, effectively reducing noise and vibration in systems such as boilers and fans.
• No reverse thrust: As the main material is fibrous fabric, there is no transmission of force. Non-metallic expansion joints can simplify the design.
• Excellent sealing performance: Maintains good sealing under various media. Easy installation and maintenance.
Jiangsu Zhongxin Bellows Co., Ltd. specializes in the production of expansion joints, bellows, butterfly valves, metal hoses, and more. Welcome to inquire and place orders from all customers!































