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Title: Find The Right Pump For Plastic Lotion Pump Bottle
Tags: Plastic Lotion Pump Bottle
Blog Entry: How to define the closed size of the Plastic Lotion Pump Bottle ? The thread closure size is represented by two numbers, separated by a hyphen or slash. The first number refers to the inner diameter (mm) of the cap and the outer diameter of the fish tail of the bottleneck. How to measure the diameter of a bottle cap or neck-bottle cap How to measure the diameter of a bottle cap or neck The second number represents the "GPI" or "SPI" thread finish, which refers to the ratio of the height of the bottle cap to the number of threads on the neck of the container. The most common numbers are -400 (one full turn of thread) and 410 (one half turn). Some bottles have a -415 bottleneck, which is two complete circles. Common GPI or SPI Neck Fishish For Caps or Pump Clousres-CapCommon GPI or SPI Neck Fishish For Caps or Pump Clousres How to measure neck finish? 1. Find the diameter of the bottle cap and measure it from one side of the inner wall to the other, or calculate the bottleneck by measuring the diameter of the outermost thread. 2. Check how many times the threads have passed each other to determine the degree of completion. (E.g. diameter 24 mm, thread 1 turn = 24/400 neck finish) The same method is also applicable to PET Shampo Bottle , which can be used with lid or pump.