Decanter Rubber Hose for SBR & CASS Wastewater Treatment
Shandong Hesper Rubber Plastic Co., Ltd., a trusted manufacturer of specialty rubber expansion joints and various of rubber hoses, introduces its Decanter-Specific Rubber Hose – a purpose-built flexible connector designed for intermittent wastewater treatment processes such as SBR (Sequencing Batch Reactor) and CASS (Cyclic Activated Sludge System). This hose enables continuous, level-following water decantation, making it a critical component in modern sewage treatment systems.
Key Features & Technical Advantages:
High Flexibility and Expandability:
The hose must possess excellent bending and telescopic properties to accommodate the vertical movement of the decanter's floating head as the water level rises and falls, thereby preventing structural damage or drainage obstructions caused by excessive rigidity.
Negative Pressure Resistance:
During the drainage process, a negative pressure environment may develop inside the hose; therefore, the hose structure must be robust, with the inner lining and reinforcement layers tightly bonded to prevent collapse (flattening) or delamination.
Corrosion and Aging Resistance:
Typically deployed in sewage treatment environments, the hose must withstand exposure to acids, alkali, oils, and microbial erosion present in wastewater. The outer layer is typically constructed from aging-resistant rubber materials that offer excellent abrasion and ozone resistance.
Moderate Working Pressure:
The typical working pressure range is 0.3–1.0 MPa (approximately 3–10 kgf). Some products feature a design pressure reaching up to 10 kg/cm² (approximately 1.0 MPa), with a burst pressure capable of reaching 3 to 4 times the working pressure.
Reinforced Structure (Fabric or Fiber):
The hose features a composite structure comprising an inner rubber lining, a single or multi-layer fabric reinforcement (such as cotton, nylon, or polyester canvas) wound layer, and an outer rubber cover—a design that effectively balances flexibility, structural strength, and durability.
Materials: Typically utilizes Nitrile Rubber or Synthetic Rubber.
Nitrile rubber offers excellent resistance to oil and water, making it suitable for environments involving oil-bearing wastewater; high-strength synthetic rubber, conversely, enhances overall abrasion resistance and tear strength.
Tight Outer Diameter Tolerances & Easy Installation:
The pipe body features stable dimensions, facilitating reliable connections with fittings such as flanges, clamps, or union joints to ensure effective sealing.
Wide Range of Applicable Diameters:
Common nominal diameters range from φ25 mm to φ305 mm, with lengths available for customization according to specific requirements.
Typical Application:
Decanter drainage systems in wastewater treatment processes such as SBR, CASS, and ICEAS.
Sedimentation tanks, equalization tanks, and similar structures requiring continuous drainage in response to fluctuating water levels.
Shandong Hesper’s decanter rubber hose is the reliable choice for municipal and industrial wastewater project. Custom specifications are welcome, for more information please contact us.