Overview

This document provides detailed technical dimensional sketches, flange specifications, and mounting arrangements for various ROTAN® pump models including GP, HD, PD, CD, and ED series. It covers proven technology pump types with comprehensive mechanical dimensions, flange standards, pressure ratings, and motor mounting details.

1. Dimensional Sketches and Mechanical Specifications

The document includes extensive dimensional data for ROTAN® pump models (GP, HD, PD, CD, ED). Each model is detailed with measurements such as flange diameters, bolt hole sizes, center distances, and overall dimensions. These are critical for installation, maintenance, and integration into piping systems.

Key parameters include:

• Flange dimensions (diameter, bolt circle, number and size of bolt holes)
• Connection sizes for pressure gauges and sealing liquids
• Weight of each pump type and configuration
• Motor mounting dimensions and arrangements (IEC/DIN standards)

2. Flange Standards and Pressure Ratings

Flanges conform to international standards ISO 2084, DIN 2501, and BS 4504:1969, with pressure ratings primarily PN 10 and PN 16. ANSI Class 150 dimensions are also referenced for certain sizes.

Pressure gauge connections are standardized as follows:

• For sizes 26-66: 1/4" RG/WPT (pipe thread)
• For sizes 81-201: 3/8" RG/WPT

Sealing liquid connections vary by pump type and size, typically 1/8", 1/4", or 3/8" pipe threads.

3. Motor Mounting and Configurations

Motor sizes and mounting arrangements follow IEC and DIN standards, with common frame sizes ranging from 80 to 180. Mounting types include B5 and B14, depending on motor size and pump model.

Dimensions for motor interfaces include shaft diameters, key sizes, and bolt patterns, ensuring compatibility with standard IEC motors and gearmotors.

4. Model-Specific Data Highlights

• ROTAN® HD Series: Flange sizes from HD26 to HD201 with detailed bolt hole patterns and weights ranging from approximately 2 kg to 60 kg. Pressure ratings up to PN 16.
• ROTAN® GP Series: Smaller sizes with flange dimensions and pressure ratings similar to HD but optimized for different applications.
• ROTAN® PD and CD Series: Larger pumps with flange sizes up to 8 bolt holes, pressure ratings PN 10 and PN 16, and detailed sealing liquid and pressure gauge connections.
• ROTAN® ED Series: Includes motor mounting dimensions for IEC motors, with flange and connection details for sizes ED26 to ED151.

5. Notes and Recommendations

• Precise dimensions for ANSI flange standards are available on request.
• Weight values are provided for all configurations to assist in handling and installation planning.
• Pressure gauge and sealing liquid connections must be selected according to pump size and operating pressure.
• Motor mounting arrangements must comply with IEC/DIN standards to ensure proper alignment and coupling.

Summary

This technical document serves as a comprehensive reference for engineers and technicians involved in the selection, installation, and maintenance of ROTAN® pumps. It ensures compatibility with international flange standards, provides exact mechanical dimensions, and supports proper motor integration. Adherence to these specifications guarantees reliable pump performance and ease of service.