Varnostni ventil ima nenavaden dizajn, ki ga razlikuje od svojih kolegov. Proizvajalec ga je naredil manjši od ventilov, ki se uporabljajo v kotlih drugih znamk. Vendar pa je glavna razlika od drugih podobnih komponent njegov delovni tlak - ta ventil je konfiguriran za delovanje pri tlaku, ki presega 7 barov. V ta namen je opremljen s posebno vzmetjo, ki v mirnem stanju pritisne ventil proti sedežu, in ko tlak v sistemu doseže nastavljeno oznako, se poravna in sprosti odvečno vodo.
Ariston: ALUDRA DELTA 24 CF gpl IT, ALUDRA DELTA 24 CF met IT, ALUDRA DELTA 24 FF gpl IT, ALUDRA DELTA 24 FF met IT, ALUDRA DELTA 28 CF gpl IT, ALUDRA DELTA 28 CF met IT, ALUDRA DELTA 28 FF gpl IT, ALUDRA DELTA 28 FF met IT, CLAS B 24 CF HMO_EE, CLAS B 24 FF HMO_EE, CLAS B 30 FF HMO_EE, CLAS B PREMIUM 24 FR, CLAS B PREMIUM 24 HMO_EE, CLAS B PREMIUM 35 HMO_EE, CLAS B PREMIUM EVO 24 EU, CLAS B PREMIUM EVO 35 EU, NIAGARA C 25 CF, NIAGARA C 25 CF HMO, NIAGARA C 25 FF, NIAGARA C 25 FF HMO, NIAGARA C 30 FF, NIAGARA C 30 FF HMO, NIAGARA C GREEN 25, NIAGARA C GREEN 25 EU, NIAGARA C GREEN 25 HMO, NIAGARA C GREEN 35, NIAGARA C GREEN 35 EU, NIAGARA C GREEN 35 HMO, SERELIA 30 FF N IT, SERELIA EBUS2 30 FF IT, SERELIA GREEN 25 FF N IT, SERELIA GREEN 25 IT EU, SERELIA GREEN EBUS2 25 IT, URBIA 25 CF B/P IT-PI, URBIA 25 CF LPG, URBIA 25 CF N IT-PI, URBIA 25 CF NG, URBIA 25 FF B/P IT-PI, URBIA 25 FF LPG, URBIA 25 FF N IT-PI, URBIA 25 FF NG, URBIA 30 CF N IT-PI, URBIA 30 CF NG, URBIA 30 FF N IT-PI, URBIA 30 FF NG, URBIA 35 FF N IT-PI, URBIA 35 FF NG, URBIA EBUS 2 30 FF, URBIA EBUS 2 35 FF, URBIA EBUS2 25 CF, URBIA EBUS2 25 FF, URBIA EBUS2 30 CF, URBIA GREEN 25 EU, URBIA GREEN 25 FF N IT-PI, URBIA GREEN 25 NG FF, URBIA GREEN 30 EU, URBIA GREEN 30 FF N IT-PI, URBIA GREEN 30 NG FF, URBIA GREEN 35 EU, URBIA GREEN 35 FF N IT-PI, URBIA GREEN 35 NG FF, URBIA GREEN EBUS2 25, URBIA GREEN EBUS2 30, URBIA GREEN EBUS2 35, URBIA GREEN LINK 25 EU, URBIA GREEN LINK 35 EU