Wilo-Xiro SPI

Your advantages

• Long service life due to corrosion-resistant hydraulics made of stainless steel
• Universally applicable due to a high performance range
• Easy installation with integrated non-return valve
• Easy to maintain and repair due to rewindable motors

Construction

Multistage stainless steel submersible pump in tie strap version for vertical and horizontal installation

Application

• For process water supply from boreholes and rainwater storage tanks
• For sprinkling and irrigation
• Lowering of the water level
• For pumping water without long-fibre and abrasive constituents

Equipment/function

• Multistage hydraulics with radial or semi-axial impellers
• Integrated non-return valve
• NEMA coupling for 6“ and 8“ hydraulics
• Rewindable, three-phase AC motor

Scope of delivery

• Hydraulics and motor ready assembled
• 4.3 m connection cable
• Installation and operating instructions

Type key

Technical data

• Mains connection: 3~400 V, 50 Hz
• Submerged operating mode: S1
• Fluid temperature: 3-30 °C
• Minimum flow rate at motor: 0.2 m/s or 0.5 m/s (depending on performance)
• Max. sand content: 50 g/m³
• Max. number of starts: 10 -20/h (depending on performance)
• Max. immersion depth: 200 m
• Protection class: IP 68
• Pressure connection: Rp 2½ to Rp 6

Materials

• Hydraulic housing: Stainless steel AISI 304L (1.4307)
• Impellers: Stainless steel AISI 304L (1.4307)
• Hydraulic shaft: Stainless steel AISI 420 (1.4021)
• Motor housing: Stainless steel AISI 304 (1.4301)
• Motor shaft: Stainless steel AISI 304 (1.4301)

Description/construction

Submersible pump for vertical or horizontal installation.

Hydraulics

Multistage submersible motor pump with NEMA (6" and 8") or standard connection (10") with radial or semi-axial impellers with sectional construction. Integrated non-return valve. All parts that come in contact with the fluid are made of corrosion-free materials.

Motor

Rewindable three-phase AC motor with PE2/PA-isolated winding and a water-glycol filling for direct startup. Hydraulic connection as NEMA (6" and 8") or standard connection (10"). Sealing of motor shaft with a mechanical seal made of carbon/ceramic material. Self-lubricating motor bearing. Thrust bearing with rockers for absorption of high axial thrust. Negative axial thrust is absorbed by the rotating seal bearing.

Cooling

The motor is cooled by the pumped fluid. The motor must always be immersed when operated. The limit values for maximum fluid temperature and minimum flow velocity must be adhered to. Vertical installation is possible with or without cooling jacket. Horizontal installation must be performed in conjunction with a cooling jacket.