Wilo-Padus UNI

The flexible drainage pump for a diverse range of fluids.

The Wilo-Padus UNI is the ideal entry-level model for wastewater transport in small commercial buildings. The pump can be used flexibly as a portable device or in a pump chamber. Hydraulics made from corrosion-free composite material provide high levels of reliability for universal use in the pumping of a diverse range of fluids. Installation is made very simple due to its low weight, integrated capacitor and threaded connection. A double mechanical seal and the large sealing chamber facilitate long maintenance intervals. Direct access to the most important components make maintenance work very convenient. By utilising Wilo-Control switchgears, the Wilo-Padus UNI can also be integrated into existing building management systems.

  • Exceptional reliability owing to corrosion-free hydraulics for universal applications and various fluids
  • Easy installation thanks to its low weight, integrated capacitor at the AC motor and threaded flange
  • Optimum efficiency and high operational reliability owing to improved hydraulics
  • Quick maintenance facilitated by direct access to the sealing chamber and pump housing
  • Long maintenance intervals thanks to double mechanical seal and large volume sealing chamber
  • Clog-proof thanks to the integrated strainer
Category:

Design

Submersible drainage pump for intermittent operation for portable wet well installation

Application

Pumping of

  • Sewage not containing faeces (EN 12050-2)
  • Wastewater
  • Fluids with a pH value of > 4.5
  • Material version “B”: Aggressive fluids, e.g. lake/sea water, condensate, distilled water

Equipment/function

  • Winding temperature monitoring with bimetallic strip
  • Ready-to-plug (versions A and P)
  • Float switch (version A)
  • Vertical float switch (version VA)

Typekey

Example: Wilo-Padus UNI M05B/T15-540/A
Padus Submersible drainage pump with centrifugal hydraulics
UNI Series with copolymer hydraulics
M Open multi-channel impeller
05 Nominal diameter of the pressure connection: G2
B Version

None = standard version

B = motor housing in V4A

K = motor with sheath flow cooling

T Mains connection version:

M = 1~

T = 3~

15 Value/10 = motor power P2 in kW
5 Frequency (5 = 50 Hz, 6 = 60 Hz)
40 Rated voltage code
A Additional electrical equipment:

No supplement = With bare cable end

P = with plug

A = with float switch and plug

VA = Vertical float switch and plug

Technical data

  • Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
  • Submerged operating mode: S1
  • Non-immersed operating mode: S2-15 min; S3 10%
  • Non-immersed operating mode “K” version: S1
  • Pressure connection: G2
  • Protection class: IP68
  • Insulation class: F
  • Fluid temperature: 3 – 40 °C, max. 60 °C for 3 min
  • Free passage: 10 mm
  • Cable length: 10 m

Materials

  • Motor housing: 1.4301
  • Hydraulics housing: PP-GF30 (copolymer)
  • Impeller: PP-GF30 (copolymer)
  • Static gaskets: NBR
  • Sealing on pump side: SiC/SiC
  • Sealing on motor side: C/Cr
  • Shaft end: Stainless steel 1.4401

In material version “B”, all parts that come in contact with the fluid are made of stainless steel 1.4401 (AISI 316).

Construction

Submersible drainage pump as submersible monobloc unit for portable wet well installation.

Hydraulics

The outlets on the pressure side are designed as vertical threaded flange connections. Open multi-channel impellers are used as the impeller shape. A strainer is integrated at the hydraulics housing.

Motor

Surface-cooled motors or sheath flow-cooled motors in single-phase current version (with built-in operating capacitor) and three-phase current version for direct starting are used:

  • Surface-cooled motors: The waste heat is given off directly to the surrounding fluid via the motor housing. These motors can operated immersed in continuous duty (S1) and non-immersed in short-time duty (S2) or intermittent periodic duty (S3).
  • Sheath flow-cooled motors: The waste heat is transferred to the fluid via the motor housing. The motors can be used in immersed state and in non-immersed state for continuous duty (S1).

Furthermore the motors are equipped with thermal motor monitoring. This protects the motor windings against overheating. For units with single-phase AC motors this is built-in and switches automatically. I.e. if the motor is switched off due to overheating and then cools down it is automatically switched on again. Bimetallic strips are used for this as standard.

The connection cable has a length of 10 m as standard and is available in following versions:

  • With bare cable ends
  • With plug
  • With float switch and plug

Pump with vertical float switch

The “VA” version is equipped with a vertical float switch. In this version, the switching level is preset by two floaters sitting on a threaded rod. It uses less space than conventional float switches and is perfect for use in tight manholes.

Seal

There is a sealing chamber between the motor and hydraulics. This is filled with medicinal white oil. The unit is sealed on the fluid and on the motor side by mechanical seals.

Delivery state

  • Submersible drainage pump with 10 m cable
  • Operating and maintenance manual

Brand

Wilo

As a global player, Wilo is always striving to place the requirements of the customers at the heart of what it does and to find tailor-made solutions for our customers and partner companies. Making. Life. Easy. We use this triumvirate as a basis for developing products and solutions which make people's lives more comfortable in many ways. FROM LOCAL SPECIALIST TO GLOBAL PLAYER Founded in 1872 as Kupfer- und Messing ware Fabrik in Dortmund, Wilo has evolved from being a local specialist to a global player. As the majority shareholder with a stake of approximately 90 percent, the Caspar Ludwig Opländer Foundation ensures the company's continuity and independence. An uncompromising customer-driven mindset, immediate market proximity and, in particular, our culture of innovation have made us who we are; one of the worldwide leading manufacturers of high-tech pumps and pump systems. CUSTOMER REQUIREMENTS AS OUR AIM Wilo always strives to solve problems that have been identified and exceed the customers’ requirements. A high standard, which provides a benchmark for us that we like to be measured by. We examine customer requirements early and from an all-round perspective. Successful inventions are developed at Wilo using our sound knowledge and reliable sense for future technological and market requirements. When both converge, product benefits reach a new level of quality. Intelligence. Inspiration. Innovation spirit. As a pioneer in the pump industry, we focus on anything that moves water. We have the most important prerequisites for continuously setting new standards with Wilo developments, products, systems and services: This includes our international team, comprising experienced and creative employees and cutting-edge technical facilities. WHAT WILO DOES Wilo is a premium supplier for the building services, water management and industrial sectors. Our leading position drives us to maintain our superiority. We make complex technologies user-friendly, simple to operate, energy-efficient and powerful for our customers. In the end, the main focus of everything we do is people. We offer them outstanding products, system solutions and services. Our brand promise stands for this: Pioneering for You. For maximum quality of life. THE WILO SEGMENTS We apply our values and drive to all of our segments. This means we can guarantee quality and sustainability. WILO BUILDING SERVICES In building services, we offer high-tech pumps and pump systems for both residential houses and commercial facilities. Multi-family houses are supplied reliably and environmentally-friendly by Wilo pumps. WATER MANAGEMENT Water management in the areas of water supply as well as drainage and sewage is the segment in which we have a particularly extensive amount of know-how and many years of expertise. All Wilo pumps and systems in your segment are in a highly technological state and specialised, to fulfil specific requirements. WILO INDUSTRY The supply of industrial enterprises is a very extensive and economically complex segment with highly specialised pump systems. Wilo proved itself in this area decades ago and has remained true to its principles by constantly adhering to all of its high quality requirements. WILO OEM In the OEM segment, Wilo offers a high-efficiency and cost-conscious product portfolio in addition to tailored services. Here, products in the sectors of cooling, heating, solar thermal energy, geothermal energy and sanitation are being constantly adapted to customer wishes and requirements. In all of the segments we are active in, new and powerful pump systems are constantly being further developed and optimised by Wilo engineers, in order to meet the permanently growing and more complex requirements. DORTMUND AS A LOCATION AS A MATTER OF CONVICTION Dortmund has established itself as Wilo’s headquarters. Besides the marketing investments in Borussia Dortmund, Wilo is also now investing significantly in Dortmund as a location. Here, where our success story started the Wilo Campus is now being built – currently Germany’s largest industrial building project. However, it is not an emotional or ideal driving this, it is a tough business decision. The argument for Dortmund is the market proximity to all of the production sites in Europe, the good infrastructure and the availability of well trained staff, so that the site is undisputed as a choice of location given its existing expertise.