What are the boiler safety valve parts and know about them

  • Easing Gear : easing gear purpose is to confirm that all the parts are lifted properly without any stuck inside the safety valve.
  • Blow down ring : Blow down valve purpose is to make sure that safety valve should not act like relief valve. ( for relief valve if set the set pressure as 7 bar then the valve sits at below the set pressure at 6.5 bar). so with this ring we set the blow down pressure, if we set the too high we will excessive steam or if we set at very low then chattering effect will be there.
  • Lip Clearance : The purpose of lip clearance is made for valve lid to sit completely on seat or if clearance is zero then the valve lid cannot seal or close completely.
  • Compression Nut : Sets the pressure for safety valve when to lift.
  • Split Collar : The purpose of using this no one can change the lifting pressure of safety valve.
  • Floating Ring : we can find this float ring in new type of safety valve, purpose is to make exhaust steam piston move freely with the help of floating ring. (in previous type of safety valve after long term usage the exhaust steam piston stuck and safety valve setting pressure will be effected).  

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