tender for distributor valve including adaptor with isolating cock. model : (i) keo ( cast iron version) or (ii)c3 w (cast iron version) spec. no. 02 - abr - 02 (amend no. 4) warranty / guarantee : the warranty /guarantee period will be 36 months from the date of delivery or 24 months from the date of commissioning for allcomponents, whichever is earlier. [for details please see spec. no. 02 - abr - 02 (amend no.4] .