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At TUBETECH SOLUTIONS PVT. LTD., we provide precision-engineered solutions designed to meet diverse industrial requirements. Our services combine advanced technology, skilled expertise, and strict quality standards to deliver reliable and cost-effective results.
How to Specify Hose Assemblies
Selecting the correct hydraulic hose assembly is essential for system safety, performance, and long service life. The STAMP method provides a simple and effective approach to ensure the right hose selection for any application.
Five Steps for Selecting the Right Hose (STAMP Method)
S = SIZE
T = TEMPERATURE
A = APPLICATION
M = MATERIAL TO BE CONVEYED
P = PRESSURE
S – Hose Size
The inside diameter (ID) of the hose must be carefully selected to ensure efficient fluid flow. An undersized hose can cause excessive pressure loss, heat generation, and turbulence, leading to premature hose failure. Selecting the correct size helps maintain system efficiency and prevents damage to both the hose and connected components.
T – Temperature
Temperature plays a critical role in hose performance. Both fluid temperature and ambient temperature must be considered during hose selection. The hose material must withstand the minimum and maximum operating temperatures of the system. Special care should be taken when hoses are routed near hot surfaces such as exhausts or manifolds. In extreme conditions, the use of heat shields or protective sleeves is strongly recommended.
A – Application
Understanding the application helps determine the most suitable hose assembly. Important factors to evaluate include:
Type of equipment and system design
Environmental conditions (heat, dust, chemicals, weather exposure)
Mechanical loads such as vibration, bending, or flexing
Space limitations and routing constraints
Type of hose fittings required (permanent or field-attachable)
Exposure to abrasion or external damage
A proper assessment ensures reliable performance and longer hose life.
M – Material to Be Conveyed
The hose assembly must be compatible with the fluid or gas being conveyed. This includes hydraulic oils, chemicals, fuels, or specialized fluids. Compatibility must be verified for the hose tube, outer cover, fittings, and O-rings. Extra caution is required for gaseous applications such as LPG or refrigerants, as incorrect selection can lead to leakage or safety hazards.
P – Pressure
System pressure is one of the most critical factors in hose selection. The hose’s rated working pressure must always be equal to or greater than the system’s maximum operating pressure, including pressure spikes and surges. Repeated pressure spikes above the rated limit can significantly reduce hose life and may result in sudden failure. Always consider safety margins for reliable operation.