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Datasheet RDL … DSA

Datasheet RDL … DSA

Product catalog summary

Overview: The document provides technical specifications and features of Disc Couplings RDL … DSA, which are torsionally rigid and designed according to API 610 standards. These couplings are suitable for applications such as centrifugal pumps, screw pumps, turbo compressors, and rotary piston fans.

Key Features:

Nominal torques up to 18,700 Nm.
High torque capacity and backlash-free operation.
Compensation for axial, radial, and angular misalignments.
Double disc pack for smooth torque transmission.
High torsional rigidity with low axial rigidity.
Temperature range from -20 °C to +280 °C.
Compliance with ATEX 2014/34/EU.

Additional Features:

No wear with optimal alignment; no lubrication necessary.
Conforms to API 610 and optionally API 671 standards.

Ordering Information: The document provides a detailed order example code and specifies the material and design options for hubs A and B, including finish bored with keyway or roughbored designs.

Technical Specifications:

Various coupling sizes with specific nominal torque, power, and speed ratings.
Permissible misalignments and torsional stiffness values are provided.
Weight and dimensions for different hub types and configurations are detailed.

Design Considerations: The document advises specifying bore diameters and keyway tolerances, with options for varying DBSEs L3 and designs in accordance with ATEX standards. It also notes the availability of couplings larger than frame size 0160 and provides guidance for vertical installations.

Catalog excerpts

Nominal torques up to 18 700 Nm High torque capacity Backlash-free Compensation of axial, radial and angular misalignments Double disc pack allows smooth torque transmission High torsional rigidity with low axial rigidity Complies with ATEX 2014/34/EU Typical applications: Centrifugal pumps, screw pumps, turbo compressors, rotary piston fans • III, extended, increased max. bore; 3 • finish bored with keyway FB Additional features • No wear with optimal alignment, no lubrication necessary • Corresponds to the provisions in accordance with API 610 and optionally, upon request, with the requirements in accordance with API 671 • III, extended, increased max. bore; 3 • finish bored with keyway FB

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Type 0 Type I Type II Type III For finish bores, please specify bore diameter hub A and hub B. Tolerance of finish bores H7. Keyways in accordance with DIN 6885, sheet 1. Keyway tolerance JS9, different bore and keyway tolerances on request. The weight refers to a combination of hub type 0 and hub type I with max. possible bore diameter respectively and shortest standard DBSE L3. When ordering please specify hub type. Possible hub combinations: Type 0 / 0; 0 / I; I / I; II / II; II / III or III / III; Pitch diameter Ta and Tb are not identical. Upon request: Varying DBSEs L3; Design in accordance...

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