Features • Double wall bellows seal as standard • Plug with marginal seat • Stem with fine thread • Flat lubricating nipple • Locking device, countersunk • Cast iron variations with nodular iron bonnet as standard • Heat dissipating bonnet • Bonnet optimised for accessories • Secondary sealing: gland packing • Position indicator as standard • Non-rising handwheel • Non-rotation lock for each nominal diameter • External stem thread • Stem with roll hardened thread
Features • Solid plug made of stainless material • Solid stem made of stainless material • Solid seat made of stainless material • Favourable zeta-values also for small nominal diameters • Proven technology • Stem with roll hardened thread • Burnished stem • High-tensile gland packing
