21HT-HN-HF N.C./N.O. Solenoid Valve 2/2 Way Combined Operation FEATURES 4 Minimum pressure not required 4 Textyle diaphragm for heavy duty applications also with air 4 Normally closed and normally open available as standard TECHNICAL SPECIFICATION AVAILABLE ON REQUEST Body material: Brass UNI EN 12165 CW617N Armature tube: Stainless Steel AISI 300 series Plungers: Stainless Steel AISI 400 series Spring: Stainless Steel AISI 300 series Media: air, gasoline, fuel oils, inert gases, water, mineral oils, diesel, steam Ambient temperature: See coils catalogue page for its compatibility Fluid temperature: -10°C +90°C with NBR+PA seals -10°C +140°C with FKM+NBR,EPDM seals Design pressure PS: 16 bar Protection class: IP65 (complete with electric plug) Electrical conformity: IEC 335 Switching time: 20 - 40 msec Explosion proof coil Ex nA (see Atex section) (Pressure Equipment Directive 97/23/CE) for S.V. 21HF7+21HF8 MAX VISCOSITY PRESSURE cSt (°E) min Figure Coil Type D mm E mm F mm G mm