Overview

This document provides detailed technical specifications, performance data, materials, dimensions, and pipe fitting information for a series of SPECIAL pumps, including models SPECIAL 20, 25, 30, 40, 50, SPECIAL SENIOR 1"1/2, SPECIAL MASTER 2", and SPECIAL NEOS 3/4".

Performance Specifications

• Flow Rate (Q): Expressed in US gallons per minute (Gal. USA/min) and liters per minute (l/min).
• Head (H): Given in feet (ft) and meters (m), representing the pump's pressure head or prevalence.
• Operating Speeds (RPM): Pumps operate typically at 1400 or 2800 rpm depending on the model.
• Performance Curves: Head vs. Flow rate data is provided for each pump type, indicating capacity ranges from approximately 5 to 225 l/min and heads from 0 to 29 meters.

Materials

• Pump Body and Components: Primarily constructed from Bronze (Bronzo) and stainless steel AISI 316 for corrosion resistance.
• Weight: Varies by model, from 1.8 kg (smallest models) up to 12.6 kg for larger pumps.

Dimensions and Pipe Fittings

• Detailed dimensional data is provided for each pump type, including measurements labeled B, C, D, E, F, G, H, I, L, M, N, and P in millimeters.
• Standard Inlet and Outlet Connections: BSP (British Standard Pipe) male threads are standard, with sizes ranging from 3/4" to 2" depending on the pump model.
• Optional Fittings: Stainless steel or nylon pipe fittings are available upon request.

Model Specifics

• SPECIAL 20, 25, 30, 40, 50: Various sizes with increasing capacity and head, weights from 2.0 kg to 12.5 kg.
• SPECIAL SENIOR 1"1/2 and MASTER 2": Larger models with higher flow rates and heads, weights around 7.3 to 7.4 kg.
• SPECIAL NEOS 3/4": Smallest model with compact dimensions and lower capacity.

Additional Notes

• Standard BSP outlet threads are noted, with other outlet options referenced on page 20 (not included here).
• Performance data includes curves for head vs. flow at different rpm values.
• Material codes and product codes are listed for ordering and identification.

Summary

This technical document serves as a comprehensive reference for selecting and specifying SPECIAL series pumps, detailing their hydraulic performance, construction materials, physical dimensions, and connection standards. It is essential for engineers and technicians involved in pump selection, installation, and maintenance to ensure compatibility and performance requirements are met.