Special valves made of bronze, brass or copper:
417: Globe, free flow, P.T.F.E. seat
421: Globe, P.T.F.E. seat
421SM: Globe, metal seat
422: Globe, with tappered shutter
418: Inclined, P.T.F.E. seat
419: Inclined, with non–return spring
424: Plug-cock manometer holder
560-560TG: Angle safety valve with outlet for pipe (metal/rubber seat)
570: Straight safety valve, free flow, metal seat
600: Sliding expansion joint
606: Air vent, “ROMA” type
606SRM: Air vent, “ROMA” type without plug cock
424S: Coil for manometer holder, nickeled
For valve operating with hazardous liquids (toxic, corrosive…) , if there is a possibility of residue remaining in the valve, take due safety precaution and carry out required cleaning operation. Personnel in charge must be trained and equipped with appropriate protection devices. Prior to disposal, disassemble the valve and separate the component according to various materials. Please refer to product literature for more information. Forward sorted material to recycling (e.g. metallic materials) or dispose it, according to local and currently valid legislation taking into consideration the environment.
Performance data, including pressure – temperature ratings have been developed from published standards, supplier material certifications, design calculations and in-house testing. They cover typical applications and are provided as a general guideline.