ARPEX series ARP-6 couplings have been specially developed for pump drives and specifically for centrifugal pump drives. Special care was taken to meet the requirements of API 610 and API 671 (API = American Petroleum Institute). Power is transmitted via close-fitting bolts and nuts from size 310-6 with conical screw connection and plate packs in hexagonal design. Torques of between 100 and 17000 Nm can be transmitted at a permitted angular misalignment of 0.7°. The closed flange shape and a compact construction permit high peripheral speeds and high speeds. The intermediate spacer can be fitted radially without moving the connected units.

Main areas of application for the ARP-6 series:

• Centrifugal pumps
• Boiler feed pumps
• Propeller pumps
• Wing pumps
• Pipeline pumps
• Turbo compressors
• Screw compressors
• Turbo blowers
• Axial, radial blowers
• Rotary-piston blowers
• Fans