SR Series Horizontal Multistage Centrifugal Electric Pump

Overview

The SR Series Horizontal Multistage Centrifugal Electric Pump by Dongyin Doyin is a premium solution for clean water pressure boosting and water supply systems. With its stainless steel impeller and durable construction, it guarantees high performance and reliability for industrial, agricultural, and environmental applications.

Applications

The SR series pumps are ideal for:

• Industrial cleaning
• Water treatment systems
• Agriculture and irrigation
• Air-conditioning systems
• Environmental applications

Key Features

• Maximum Fluid Temperature: Up to +40°C
• Maximum Sand Content: 0.25%
• Maximum Suction Lift: 8m
• Motor: Rewindable motor for long-lasting durability
• Voltage Options: Single-phase (220-240V/50Hz) and Three-phase (380-415V/50Hz)
• Curve Tolerance: Designed in compliance with ISO 9906 standards
• Optional: Other voltages or frequencies (60 Hz) available on request

Performance Data

Delivery Range (at n ≈2850 1/min):

• Flow rates up to 135 l/min (8.1 m³/h)
• Total dynamic head (H) from 11m to 58m depending on the model

Dimensions and Weight

Each model in the SR series has specific dimensions and weights:

• SR(m)203: DN1=17, DN2=1", W=123mm, H=210mm, L=342mm, Weight=10.5 kg (single-phase), 10 kg (three-phase)
• SR(m)204: DN1=19, DN2=1", W=123mm, H=210mm, L=362mm, Weight=11 kg (single-phase), 10.5 kg (three-phase)
• SR(m)205: DN1=17, DN2=1", W=123mm, H=210mm, L=382mm, Weight=11.5 kg (single-phase), 11 kg (three-phase)
• SR(m)206: DN1=17, DN2=1", W=123mm, H=210mm, L=437mm, Weight=12.5 kg (single-phase), 12 kg (three-phase)
• SR(m)403: DN1=19, DN2=1", W=123mm, H=210mm, L=348mm, Weight=11 kg (single-phase), 10.5 kg (three-phase)
• SR(m)404: DN1=17, DN2=1", W=123mm, H=210mm, L=371mm, Weight=12.5 kg (single-phase), 12 kg (three-phase)
• SR(m)405: DN1=17, DN2=1", W=123mm, H=210mm, L=429mm, Weight=14 kg (single-phase), 13.5 kg (three-phase)
• SR(m)406: DN1=1, DN2=1", W=123mm, H=210mm, L=452mm, Weight=14.5 kg (single-phase), 14 kg (three-phase)
• SR(m)603: DN1=17, DN2=1", W=123mm, H=210mm, L=356mm, Weight=13 kg (single-phase), 12.5 kg (three-phase)
• SR(m)604: DN1=19, DN2=1", W=123mm, H=210mm, L=418mm, Weight=13.5 kg (single-phase), 13 kg (three-phase)
• SR(m)605: DN1=1, DN2=1", W=123mm, H=210mm, L=445mm, Weight=14.5 kg (single-phase), 14 kg (three-phase)
• SR(m)606: DN1=17, DN2=1", W=123mm, H=210mm, L=472mm, Weight=15.5 kg (single-phase), 14.5 kg (three-phase)

Performance Curve

The SR series pump performance curves indicate the relationship between flow rate (Q) and total dynamic head (H). With various models such as SR203, SR204, SR605, and SR606, you can select the most suitable option for your requirements. The curves conform to ISO 9906 standards, ensuring accuracy and reliability.

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