Product Description
Flow range : <1000m³/h
Lift range : ≤150m
Max.operating pressure at different fluid temperature : 16bar
Temperature range : -20ºC~+140ºC
Aplication field : The B-series horizontal end suction pump can be widely used in water supply systems, circulation systems for heating or air conditioning, irrigation systems, conveying hot and cold water that does not contain abrasive substances in heating, cold water, and cooling water systems (in accordance with VDI2035 standard)

Wilo-Atmos GIGA-B With optimized hydraulic efficiency, the pump is characterized by low life cycle costs. All cast parts are with an anti-corrosion electrophoretic coating, ensuring long service life. The standard pump feet and "pull-back" design, as well as the cartridge mechanical shaft seals for large pump sizes (37kW/4-pole and above), greatly reduce the installation and maintenance burden on the customer's side.
Your advantages
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Glanded pump in monobloc design with flange connection
Application
> For pumping heating water (in accordance with VDI 2035), water-glycol mixtures, cooling water and chilled water without abrasive substances in heating, chilled water and cooling water systems.
Typekey
Example | BL 40/160-4/2 |
BL | Monobloc pump |
40 | Nominal diameter DN of the pipe connection (pressure port) |
160 | Nominal impeller diameter |
4 | Rated motor power P2 in kW |
2 | number of poles |
- Permissible temperature range of -20 °C to +140 °C
- Mechanical seal for pumping water up to Tmax = +140 °C. Up to T ≤ +40 °C, a glycol admixture of 20 % to 40 % by volume is permissible. An alternative mechanical seal must be provided for water-glycol mixtures with a glycol content of > 40% to max. 50% by volume and a fluid temperature of > +40 °C to max. +120 °C or other fluids that differ from water. When using water-glycol mixtures, the use of an S1 variant with a corresponding mechanical seal is generally recommended.
- Mains connection 3~400 V, 50 Hz (others on request)
- Protection class IP55
- Nominal diameter DN 32 to DN 150
- Max. operating pressure 16 bar (optionally 25 bar on request)
- Pump housing and lantern: Standard: EN-GJL-250; optional: Spheroidal cast iron EN-GJS-400-18-LT (depending on type)
- Impeller: Standard: EN-GJL-200; special version: Bronze CuSn 10 stainless steel 1.4408
- Shaft: 1.4122
- Mechanical seal: AQEGG; other mechanical seals on request
Single-stage low-pressure centrifugal pump in block design, with axial suction port and radially arranged pressure port with
- Mechanical seal
- Flange connection with pressure measuring connection R 1/8
- Lantern
- Coupling
- IEC standard motor
- Pump
- Installation and operating instructions
- …-L1 variant with bronze impeller (at additional charge)
- …-L4 variant with stainless steel impeller (at additional charge)
- ...-P6 variant in back pull-out design and with cartridge mechanical seal
- …-H1 variant with housing made of ductile cast iron on request
- …-P4 variant for max. operating pressure of 25 bar on request
- Other voltages and frequencies as well as ATEX approval on request
- Bases (pump housing and motor) for installation on a base
- PTC thermistor sensor, PTC thermistor tripping relay
- Special motors
- Special mechanical seals
- SC-HVAC, CC-HVAC control systems and switchgears

