Pedrollo BC-ST Stainless Steel Submersible Pumps

Product Overview

The Pedrollo BC-ST series offers powerful and robust high-efficiency submersible pumps constructed entirely from stainless steel, providing superior corrosion and abrasion resistance.

These pumps are designed for various applications, including:

• [Sewage]
• [Domestic use]
• [Civil use]
• [Industrial use]

Performance Range

• Flow rate up to 850 l/min (51 m³/h)
• Head up to 17 m

Installation and Use

BC-ST stainless steel submersible pumps are engineered to drain dirty and sewage water in domestic, civil, and industrial settings. Featuring a TWO-CHANNEL impeller, they efficiently handle liquids containing suspended solids up to 50 mm in diameter with short fibers. They are suitable for wastewater, sewage, surface water, and sludge-mixed water in residential properties.

The hydraulic configuration of the volute and the TWO-CHANNEL impeller, developed through advanced fluid dynamics calculations, delivers superior performance and efficiency, leading to significant energy savings.

The TWO-CHANNEL impeller ensures excellent performance and high energy efficiency, generating increased pressure for pumping solids up to 50 mm in diameter, making it an ideal choice for wastewater drainage.

Key Features and Application Limits

Includes

• Power cable length: 10 m
• Float switch (exclusive to single-phase models)

Application Limits

• Depth below water level: up to 5 m (with appropriately sized power cable)
• Liquid temperature: up to +40 °C
• Capable of processing suspended solids: up to Ø 50 mm
• Minimum immersion for continuous service:
• 290 mm for BC 10/50-ST
• 330 mm for BC 15/50-ST
• 360 mm for BC 20/50-ST

Available Upon Request

• AISI 316L stainless steel pump shaft
• Different voltage requirements, 60 Hz frequency

Patents and Trade Marks

• Patent No. EP2313658
• Patent No. IT0001428923

Performance Curves

The performance curves illustrate the relationship between Head (H) in meters and Flow Rate (Q) in l/min and m³/h for the BC-ST series pumps. The graph shows three distinct performance lines corresponding to the BC10/50-ST, BC15/50-ST, and BC20/50-ST models.

(Note: A visual graph is not representable in text. The data below summarizes key points.)

Performance Data Table

Q = Flow rate, H = Total manometric head. Performance curves comply with EN ISO 9906 Grade 3B tolerance limits.

Absorption Data

Dimensions and Weight

The following tables provide detailed dimensions in millimeters (mm) and weight in kilograms (kg) for the BC-ST models, along with typical installation considerations.

(Note: Diagrams showing measurement labels a, b, c, h, h1, d, e, p are not representable in text.)

Pallet Capacity

Materials and Components

The BC-ST pumps are constructed using high-quality materials for durability and performance. The following table details the primary components:

(Note: A diagram illustrating numbered components is not representable in text.)

Sewage Lifting System Kits (VX-ST - BC-ST)

Pedrollo offers sewage lifting system kits designed to complement the BC-ST pumps, available for both horizontal and vertical delivery configurations with 3/4" guide pipes.

Version with Horizontal Delivery and 3/4" Guide Pipes

For VX/35-ST: CODE ASSPVX35ST, DN 2"

For VX/50-ST, BC/50-ST: CODE ASSPVX50ST, DN 2"

Kit components include: Coupling foot, Solids rail with ring nut and seal, Support for guide tubes.

Version with Vertical Delivery and 3/4" Guide Pipes

For VX/35-ST: CODE ASSPVX35STV, DN 2½"

For VX/50-ST, BC/50-ST: CODE ASSPVX50STV, DN 2½"

Kit components include: Coupling foot complete with counterflange, Solids rail with ring nut and seal, Support for guide tubes.

Accessories Available for Order

Running Guide

• For VX/35-ST: CODE ASSFL005
• For VX/50-ST, BC/50-ST: CODE ASSFL006

Complete with ring nut and gasket.

Guide Tube Support

• For Ø 3/4" guide tubes: CODE 859SV340INTFA

To ensure stability, insert a support every 2 metres along the guide tube.

Guide Tube (AISI 304 stainless steel)

• 2 metres Ø 3/4" guide tube: CODE 54SARTG0052F
• 3 metres Ø 3/4" guide tube: CODE 54SARTG0053F
• 6 metres Ø 3/4" guide tube: CODE 54SARTG0056F

Detailed Dimensions (Version with Horizontal Outlet)

The following table provides detailed measurements for pumps with a horizontal outlet.

(Note: Diagrams showing measurement labels a, b, c, p, h, h1, h2, h3, i1, i2, i3, i4, i5, Øg, Øm, Øn are not representable in text.)

Detailed Dimensions (Version with Vertical Delivery)

The following table provides detailed measurements for pumps with a vertical delivery.

(Note: Diagrams showing measurement labels a, b, c, d, e, p, h, h1, h2, h3, i1, i2, i3, i4, i5, Øg, Øm, Øn, Ør are not representable in text.)