！ Port type: threaded (BW butt welding, SW socket welding, UBM sleeve welding, card sleeve)
！ Working temperature: -20 ≧~520 ≧
！ Pressure environment: 6000PSI up to 10000psi (689bar) maximum
！ Drive mode: One character handle, handwheel
！ Nominal diameter: 3mm~28mm (1/8~1 ")
！ Material: 304, 316, 316L, 321, Hastelloy, Monel alloy
