Fluid-line engineers use the acronym STAMPED to capture the information needed to select a hose. Whether you are replacing a standard part or developing a new one, providing all seven items shortens quoting and sampling considerably.
S — Size
Inner diameter sets flow; outer diameter and wall thickness affect fitment and pressure rating. For molded and formed silicone hoses, include length, bend angles and routing — ideally with 2D/3D drawings or a physical sample.
T — Temperature
Consider both media temperature and ambient temperature around the hose, such as near an exhaust manifold or turbocharger. Temperature largely determines the material: EPDM, silicone and AEM have very different limits.
A — Application
Which system is it used in? Is there vibration, flexing, abrasion or external oil? Is it clamped or fitted with quick connectors? These answers shape reinforcement and cover design.
M — Media
Coolant, fuel, oil, oil vapour, charge air or vacuum? Each affects rubber swelling and aging differently — silicone, for example, is not suited to long-term fuel contact, while NBR and FKM resist oil far better.
P — Pressure
Confirm working pressure, peak pressure and any pulsation. Charge-air and cooling lines both see cyclic pressure, so burst pressure should be designed with a safety factor.
E — Ends
End geometry, embedded rings, and pre-assembled clamps or fittings all affect sealing and assembly efficiency.
D — Delivery
Annual volume, packaging, lead time and documentation needs (such as PPAP or material reports) are also key inputs for quotation.
Send us these details and Nuotong engineers will reply with a preliminary proposal and quote within 24 hours.