Large Diameter Suction and Delivery Hose with Flange
Large Diameter Suction and Delivery Hose with Flange
Large Diameter Suction And Delivery Hose with Flange ends
Large diameter flanged suction hosesare heavy-duty flexible hoses characterized by their customized large inner diameter and integrated flange connections at both ends. Engineered for high-flow fluid handling, they are widely utilized in industrial, construction, agricultural, and marine sectors for the efficient suction and discharge of liquids, slurries, and semi-solid mixtures.
Large diameter suction hoses with flange can be manufactured in different inside diameters, lengths, wall thicknesses, pressure grades and flange configurations. It is commonly used for construction dewatering, flood drainage, agricultural irrigation, industrial cooling water, wastewater transfer, marine water handling and temporary pumping systems.
As part of our completesuction and delivery hose range, this product can be configured according to the transferred medium, required flow rate, pump inlet or outlet size, operating pressure and installation layout.
Characteristics
Typically defined as hoses with an inner diameter of 4’ inches (100 mm) and above, with common specifications ranging from 6 inches (150 mm) to 60 inches (1500 mm) (or even larger size) for heavy-duty applications. This large diameter enables maximum flow rates, minimizing pumping time and operational costs for bulk fluid transfer tasks. The diameter tolerance is strictly controlled within ±1% to ensure compatibility with standard flanged equipment.
The integral flange ends (available in ANSI, DIN, BS, and JIS standards) enable quick, tool-free assembly with pumps, valves, and pipeline systems. Flange materials are matched to the application scenario—carbon steel for general industrial use, stainless steel (304/316) for corrosive fluid handling, and aluminum for lightweight, portable setups. The flange-sealing surface is precision-machined to ensure a leak-proof seal even under high vacuum or pressure conditions.
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Items |
Features |
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Standard Compatibility |
Flange ends are compatible with four major international standards: ANSI, DIN, BS and JIS. They enable seamless connection with pumps, valves and pipeline systems for quick assembly. |
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Material Selection Guide |
Carbon steel → General industrial applications 304/316 stainless steel → Corrosive fluid transfer Aluminum alloy → Lightweight and portable working conditions |
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Sealing Assurance |
The flange sealing surface is precision-machined with high surface finish, ensuring zero-leakage sealing even under high vacuum or high-pressure conditions. |
Constructed with a multi-layer composite structure to withstand harsh working environments:
● Inner Liner: Made of nitrile rubber (NBR) for oil resistance, EPDM for chemical resistance, or PVC for cost-effective general use; the inner surface is smooth to reduce fluid friction and prevent sediment buildup.
● Reinforcement Layers: Polyester cord fabric with high-tensile helix steel wire provide radial rigidity, preventing hose collapse under negative pressure (vacuum resistance up to -0.9 bar) and enhancing burst pressure resistance.
● Outer Cover: Wear-resistant, NR, CR and normally with PVC wrapped to protect against abrasion, weathering, and chemical corrosion during outdoor or construction site use.
Despite their large diameter, the hoses maintain excellent flexibility, allowing easy routing around obstacles and installation in confined spaces. They exhibit good fatigue resistance, withstanding over 10,000 flex cycles without cracking or delamination.
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