A Hose Collar (O/T - Outer Thread) specification involves material (PP, PVC), size (1/2" to 8", or 15-200mm), thread type (usually BSP), pressure (up to 10 Bar), temperature range (-10C to 80C), and UV stabilization, designed for secure, leak-proof connections in irrigation, plumbing, and fluid transfer, ensuring durability and resistance to corrosion and weathering, often in yellow, blue, or custom colors
Understanding the OT Specification
"OT" stands for Outer Thread or Outer Diameter in the context of many plastic or metal hose collars and fittings. This specification defines the external dimensions of the collar, which is necessary for compatibility with the internal dimensions of the component it connects to.
Outer Diameter (OD): This measurement is critical when selecting a hose clamp. The clamp needs to fit securely around the outside of the hose once the hose is installed on a fitting, barb, or pipe. For example, a clamp specified for a "25mm hose" is designed to fit a hose with an approximate 25mm outer diameter.
Outer Thread (OT): For threaded hose collars, this refers to the male threading on the exterior of the fitting. This allows it to screw into a female-threaded pipe, valve, or other component.
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