1. Measurement accuracy can achieved to within 0.01mm Max, position tolerance to 0.02mm Max., sealing parts reach Ra0.4-0.8, with pertect sealing performance.
2. Adopt appropriate material to meet the different temperature demands medium and corrosive medium.
3. It can improve the valve stem performance after go through ENP, QPQ and chroming treatment.
Material: 410, 420, 431. F304. F316.
F316L, A105. 45# steel etc.
