Case Study: Runtaida Flexible Rubber Expansion Joint for Turkey Water Supply Pump Room Project
Project Background & Client's Core Pain Points：
The core of this municipal water supply upgrade project in Turkey was to improve the operational stability and lifespan of the water supply pump and valve system. Before the retrofitting, the original water pump station frequently suffered from severe water hammer impacts during pump start-up and shut-down. Furthermore, the traditional rigid metal piping lacked flexibility, leading to significant pipeline vibration transmission and minor displacement misalignments.
In addition, the pump station had a highly compact internal space with short piping distances. This meant it could not accommodate longer double sphere rubber joints or any limiting devices with protruding control rods. The customer imposed extremely stringent requirements on the product's technical specifications and pressure resistance:
High-Pressure Anti-Pullout Capability: Although the pipeline space was restricted and could not fit traditional control rods, the product had to ensure that the rubber bead would never pull out from the flanges under high-pressure water hammer shocks.
Space Adaptability: The structure had to be ultra-compact, making it suitable for installation in pump room pipelines with strict axial length limitations.
Medium Resistance & Hygiene: The water supply system must comply with drinking water sanitary standards, and the rubber material required exceptional anti-aging performance.
Runtaida Customized Solutions：
To address the confined space and ultra-high pressur working conditions of the Turkish water supply pump room, the Runtaida engineering team tailored a large-diameter single sphere rubber joint featuring a special double flange clamping structure.
Single Sphere Design: This compact, short-length structure requires minimal installation space. It provides excellent axial extension, compression, and lateral displacement compensation within a very tight gap, greatly buffering the violent vibration during pump startup.
Double Flange Clamping Design: To achieve an exceptionally high pressure safety factor without using limit tie rods, Runtaida utilized an innovative double-flange clamping structure. The joint comes with its own blue painted ductile iron/carbon steel flange, which is tightly clamped against the pipeline's stainless steel backing flange using dense, high-strength bolts around the entire circumference. This design firmly locks the rubber sealing face between the two flanges on each side. It multiplies anti-pullout and leak-proof performance without occupying any external space with bulky rods.
Premium EPDM Rubber Material: Formulated with high-grade EPDM rubber reinforced with an internal high-density nylon cord fabric skeleton. It delivers outstanding resistance to aging, ozone, heat, and water, fully satisfying the safety and longevity demands of urban drinking water transmission.
International Flange Standards: Precisely manufactured in strict accordance with global mainstream flange standards. The bolt hole alignment achieved a 100% seamless match with the on-site stainless steel flange, ensuring a smooth and highly efficient installation process.
Several months after its official commissioning, the water supply pipeline system has demonstrated extremely high safety and operational stability. Recently, the customer was very satisfied with the product and specifically sent photos of the actual operation at the pump station：
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TAG: Rubber expansion joints