Centrifugal pump model, the meaning Centrifugal pump model representation generally consists of the first, middle and tail of the three components, the first number, said the pump size, size, pump inlet diameter (mm or inch); the middle of Chinese Pinyin that pump type, feature or use, such as D that multi-stage sub-type, Sh said single-stage double suction, F said corrosion-resistant pump, Y said centrifugal pump; the tail generally denote the main pump performance parameters, such as Single-stage rated head, multi-stage pump series. If the pump is fitted with a cut impeller, add the words A, B, C on the back of the trailer. For example: 80AY100 × 2A
Terminal resistor as a optional LED Accessories, which always connected with the last led lamp output to make sure the signal stable. The termination resistor is necessary in 3D LED Tube light project. We embemed terminal resistor in a small 4 pin end tie, which make sure the terminal resistor waterproof, dustproof and fast apply to the DMX 512 led project.
Photo show of Terminal Resistor and End Cap :
Terminal Resistor And End Cap,Terminal Resistor,Termination Resistor
Shenzhen Iseeled Technology Co., Ltd. , https://www.iseeledlight.com