RS Horizontal Multistage Centrifugal Pump of ZEN brand are CE certified, which guarantees reliable quality and wins the trust of our customers.
ApplicationSuitable for use with clean water, even in the presence of air, and with liquids that are not chemically aggressive to the materials from which the pumps are made.
Pumps designed to pump water even in the presence of air, due to their silence, reliability and low energy consumption, are recommended for use in domestic and civil applications such as water pressure and distribution in combination with pressure devices, as well as rainwater recovery systems and irrigation.
Pumps must be installed in a closed environment or at least to avoid bad weather.
• Liquid temperature up to 60°C
• Ambient temperature up to 40°C
• Total inhalation rise up to 9 m
• Continuous operation
• Pump body: cast iron + stainless steel
• Electrical support: cast iron
• Motor housing: aluminum
• Sheet wheel: PPO, AlSI 304 if required
• Axle: 45# steel, AlSI 416 stainless steel if required
• Mechanical seal: carbon / ceramic
Single-phase 220V - 230V / 50Hz
Single phase 110V - 127V / 60 Hz (on request)
Single-phase / three-phase 220V / 60 Hz (if necessary)
• Two-pole induction motors
• Insulation class B, class F (if necessary)
• Protection class IP44, IP54 (if necessary)
| Model | Enter exit | Q(m³/h) | 0 | 0.6 | 1.2 | 2.1 | 2.4 | 3.0 | 3.6 | 4.2 | 4.8 | 5.4 | |||
| KW | HP | Q(L/min) | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | |||
| RS2 | 0.5 | 0.6 | H(m) | 25 | 23 | 21 | 18 | 15 | 12 | 8 | 5 | ||||
| RS3 | 0.6 | 0.8 | 35 | 33.5 | 31 | 28.5 | 25.5 | 21.5 | 16.5 | 11 | 5 | ||||
| RS4 | 0.75 | 1 | 45 | 43.5 | 41 | 38.5 | 35 | 30.5 | 25.5 | 19.5 | 12.5 | 5 | |||
| RS5 | 0.9 | 1.25 | 55 | 52.5 | 49.5 | 46.5 | 42.5 | 38 | 32 | 25 | 18 | 0.5 | |||
Performance graph n = 2850 RPM
| Model | Enter exit | N.W | L×W×H | ||
| (inches) | (Kg) | (mm) | |||
| RS2 | 1"×1" | 11.4 | 385×215×230 | ||
| RS3 | 1"×1" | 12.4 | 405×215×230 | ||
| RS4 | 1"×1" | 13.4 | 430×215×230 | ||
| RS5 | 1"×1" | 14.7 | 455×215×230 | ||
| Numbers | Notes | Numbers | Notes | Numbers | Notes | ||||||
| 1 | Horizontal thrust | 13 | Horizontal thrust | 25 | Condenser | ||||||
| 2 | Discharge plug | 14 | Discharge plug | 26 | Connection box | ||||||
| 3 | "O" Ring | 15 | "O" Ring | 27 | Walnuts | ||||||
| 4 | Input sleeve | 16 | Input sleeve | 28 | Washing machine | ||||||
| 5 | Loading plug | 17 | Loading plug | 29 | Wheel | ||||||
| 6 | "O" Ring | 18 | "O" Ring | 30 | Diffuser | ||||||
| 7 | Pump housing | 19 | Pump housing | 31 | Fall protection | ||||||
| 8 | "O" Ring | 20 | "O" Ring | 32 | Relationship | ||||||
| 9 | Mechanical seal | 21 | Mechanical seal | 33 | Rotor | ||||||
| 10 | Pump bracket | 22 | Pump bracket | 34 | Relationship | ||||||
| 11 | Housing with wound stator | 23 | Housing with wound stator | 35 | Open ring | ||||||
| 12 | Station | 24 | Station | ||||||||
