Buna-N is a commonly used elastomer. Buna-N is also known as Nitrile rubber, NBR or Perbunan.It is synthetic rubber copolymer of acrylonitrile(ACN) and butadiene.Elastomer is natural or synthetic material which does not break when stretched and when released it return to its original length.NBR,an improved version of Buna-N,is used for hoses,rubber belts,sealing parts,special purpose article in oil well,reciprocating oil seal,rubber seal,gaskets,roll covers,shoe soles,varieties molded part for shoe heels and O-rings. XNBR is specially used for modification of the adhesives and epoxy resin.
Response No. 1: An SCR, or Silicon Controlled Rectifier, is a semiconductor, or integrated circuit (IC), that allows the control of current using a small current. Basically, it is a simple direct current (DC) light switch.
Dimmers come in two basic wiring configurations: standard single-pole dimmers and three-way dimmers. With a standard single pole dimmer, a single switch controls a light. With a three-way dimmer, you can control a light with two switches.You will need a three-way dimmer and a three-way switch.This lets you dim from one location and turn the lights on and off from another. Connect the black dimmer wire to your tagged common wire and remove the. electrical tape. â¢ Connect the two remaining dimmer wires, called traveler wires, separately to each. remaining wire in your wall box. â¢ Use a screwdriver to mount your dimmer to the wall with the provided screws.