Data sheets Assembly and operating instructions Supplementary installation and operating instructions (Ex) EG registration certificates Type examination certificates and statements (Ex) Declarations of conformity Certificates Overview brochure Supplementary installation and operating instructions (Ex) Variable area flow meters RA 60 / FA 60 Supplementary installation and operating instructions (Ex) RA 65 / FA 65 Supplementary installation and operating instructions (Ex) RA 87 / FA 87 Supplementary installation and operating instructions (Ex) Short-tube variable area flow meters SGK Supplementary installation and operating instructions (Ex) Flap-type flow meters KLA Supplementary installation and operating instructions (Ex) KFS Supplementary installation and operating instructions (Ex)