ELAFLEX SERV-G series rubber expansion joint flexible compensation optimization

NegotiableUpdate on 05/20

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Overview

ELAFLEX always adheres to strict quality management standards and strictly follows the ISO 9001 quality management system. The SERV-G series products have passed multiple international and domestic certifications such as PED, UKWRAS, FDA, etc., fully meeting industrial and even food grade safety requirements. At the same time, the brand provides professional selection technical support and customized solutions. $r $nELAFLEX SERV-G series rubber expansion joint flexible compensation optimization

Product Details

ELAFLEX, with a century long industrial heritage, always adheres to the rigor and innovation of German manufacturing in the field of fluid connection and compensation. Its SERV-G series (yellow ring) rubber expansion joints are specially designed for harsh transportation conditions such as petroleum based products, various fuels, urban gas, and natural gas, providing flexible compensation guarantees for various industrial pipeline systems with stable and reliable performance. This series of products has passed multiple certifications such as DNV-GL, Lloyd's Register, and China Classification Society, and is widely used in core scenarios such as oil tanker transportation, refining and processing, gas station operations, aviation refueling, and ship support, achieving a dual breakthrough in safety and adaptability.

Full series model analysis and detailed explanation of core parameters

ERV-G series rubber expansion joints cover DN25 to DN300 full specifications. By default, DIN PN10/16 rotatable galvanized carbon steel flanges are configured. Other standard flanges can be customized according to actual needs. The composite structure of NBR lining+PA textile cord reinforcement+CR outer covering is adopted, which endows the product with oil resistance, wear resistance and aging resistance and adapts to a variety of complex industrial environments. The core parameters of each mainstream model are detailed as follows:

1. VER-G 25.16: The nominal diameter is DN25 (1 inch), the rated working pressure is PN16, the standard installation length is 130mm, the axial compensation can reach ± 30mm, the lateral compensation is ± 12mm, the angular compensation is ± 3 °, and the applicable temperature range is -20 ℃~+90 ℃ (can withstand high temperature of+100 ℃ for a short time). The suitable media include petroleum products with aromatic content ≤ 50%, fuels with ethanol content ≤ 85%, and urban gas and natural gas without LPG.

2. SERV-G 50.16: nominal diameter DN50 (2 inches), rated pressure PN16, installation length 160mm, axial compensation ± 30mm, lateral compensation ± 15mm, angular compensation ± 3 °, suitable for temperatures ranging from -20 ℃ to+90 ℃ (short-term+100 ℃), can be adapted to various commonly used fuel delivery scenarios such as aviation fuel, diesel, heating oil, gasoline, etc.

3. SERV-G 80.16: nominal diameter DN80 (3 inches), rated pressure PN16, installation length 160mm, axial compensation ± 30mm, lateral compensation ± 15mm, angular compensation ± 3 °, applicable temperature range -20 ℃~+90 ℃ (short-term+100 ℃), mainly used in refinery pipeline transportation, gas station oil pipeline and other scenarios.

4. SERV-G 100.16: nominal diameter DN100 (4 inches), rated pressure PN16, installation length 160mm, axial compensation ± 30mm, lateral compensation ± 15mm, angular compensation ± 3 °, applicable temperature -20 ℃~+90 ℃ (short-term+100 ℃), suitable for ship fuel transportation, gas station main pipeline and other working conditions.

5. SERV-G 150.16: nominal diameter DN150 (6 inches), rated pressure PN16, installation length 160mm, axial compensation ± 30mm, lateral compensation ± 15mm, angular compensation ± 3 °, applicable temperature -20 ℃~+90 ℃ (short-term+100 ℃), can be used in large oil tanker fuel systems, industrial gas pipelines and other large-scale transportation scenarios.

6. SERV-G 200.10: nominal diameter DN200 (8 inches), rated pressure PN10, installation length 175mm, axial compensation ± 30mm, lateral compensation ± 15mm, angular compensation ± 3 °, applicable temperature -20 ℃~+90 ℃ (short-term+100 ℃), suitable for refinery main transport pipelines and aviation refueling unit pipelines.

7. SERV-G 300.10: nominal diameter DN300 (12 inches), rated pressure PN10, installation length 200mm, axial compensation ± 30mm, lateral compensation ± 15mm, angular compensation ± 3 °, suitable for temperatures ranging from -20 ℃ to+90 ℃ (short-term+100 ℃), mainly used in heavy-duty scenarios such as fuel main pipes for ocean going ships and main pipelines for large gas stations.

Specialized derivative models, adapted to complex working conditions requirements

In response to the special working conditions of different industries, the SERV-G series has spawned multiple specialized models, covering scenarios such as low temperature, fire resistance, and high weather resistance, further expanding the application boundaries of the products

1. SERV-G LT (low temperature specific model): The temperature adaptation range is expanded to -40 ℃~+90 ℃ (short-term tolerance+100 ℃), using NBR seamless wear-resistant lining and CR weather resistant outer covering material, standard PN16 flange, designed for diesel and aviation fuel transportation in cold regions, can maintain stable performance in -40 ℃ low temperature environment, and avoid brittle fracture damage.

2. ERV-GS (fire enhanced model): It has passed the ISO 15540 certification, and can achieve 30 minute fire resistance protection under 800 ℃ high temperature environment. It adopts steel cord reinforced structure, which has excellent oil resistance and chemical corrosion resistance, and is suitable for petrochemical, ship engine room and other scenarios with strict requirements for fire rating.

3. ERV-GS HNBR (model with high weather resistance): It is made of HNBR high-performance materials, and the temperature adaptation range is -35 ℃~+120 ℃. It has excellent mineral oil resistance, aging resistance and ozone resistance, and is suitable for heavy equipment hydraulic systems and fuel delivery scenarios with high temperature and humidity and frequent equipment startup and shutdown.

Four core advantages, showcasing Germany's manufacturing strength

-Flexible compensation: It has triple compensation functions in axial, transverse, and angular directions, which can efficiently absorb the displacement of pipelines caused by thermal expansion and contraction, equipment operation vibration, effectively avoid safety hazards such as pipeline cracking and medium leakage caused by stress concentration, and ensure the stable operation of pipeline systems.

-Multi medium adaptation: The NBR lining material has excellent oil resistance, wear resistance, and ethanol resistance, making it easy to handle new fuels such as ethanol gasoline and biofuels; The CR outer covering material has excellent weather resistance and ozone resistance, greatly extending the outdoor service life of the product.

-Safety and compliance assurance: Adopting an electrically dispersed structure design, the resistance is controlled between 1k Ω and 1M Ω, effectively avoiding static electricity accumulation; The rotatable flange design is easy to install and suitable for pipe docking at any angle. The product complies with strict industry standards such as DNV-GL and various classification societies, fully meeting the safety requirements of industries such as ships and oil and gas.

-Precision quality control: Adhering to German precision manufacturing standards throughout the entire process, every SERV-G series product undergoes strict pressure and fatigue testing before leaving the factory to ensure stable pressure bearing and reliable sealing, reducing maintenance costs and downtime losses of pipeline systems from the source.

Scientific selection guide, suitable for all scenario applications

1. Key points of selection:

-Medium adaptation: For conventional petroleum based products, fuels, and gas transportation, the standard RV-G series is preferred; For low-temperature working conditions in cold regions, the RV-G LT low-temperature dedicated model is selected; For scenarios with fire prevention requirements, choose the SERV-GS fire enhanced model; Under high temperature and high humidity conditions, the RV-GS HNBR high weather resistant model is selected.

-Pressure temperature matching: It is necessary to select the appropriate model based on the actual medium temperature and working pressure, and compare the parameters of each model. It is important to note that the medium's short-term high temperature should not exceed+100 ℃ to avoid affecting the product's service life.

-Flange customization: The product comes standard with DIN PN10/16 carbon steel flanges, which can be customized with different materials such as stainless steel and aluminum alloy according to the pipeline material to ensure compatibility of pipeline docking.

2. Typical application areas:

-In the field of oil and gas transportation, it is widely used in oil tanker loading and unloading, refinery production pipelines, and gas station oil transportation systems. It can effectively compensate for pipeline thermal displacement, resist fuel corrosion, and ensure transportation safety.

-In the field of aviation support, it is suitable for aviation refueling crews and airport fuel delivery systems, which can meet the dual requirements of low temperature and fire prevention, ensuring the stability and safety of aviation fuel delivery.

-Ship supporting field: used for ship fuel main pipes and onboard gas pipelines, certified by various classification societies, can adapt to high humidity and salt spray environments in the ocean, and adapt to complex operating conditions of ships.

-In the field of industrial gas, it is applied to urban gas main pipelines and industrial furnace gas transmission systems, which can stably compensate for pipeline displacement, ensure safe and leak free gas transmission throughout the entire process.

ELAFLEX SERV-G series rubber expansion joint flexible compensation optimization