Wilo-Drain STS 40

Special features/product advantages

  • Attached float switch (A-model) enables easy operation
  • Integrated pump base for easy installation
  • Impeller made of stainless steel
  • Low weight

Series description

Design

Submersible sewage pump for intermittent operation for stationary and portable wet well installation.

Application

Pumping of

  • Sewage containing faeces
  • Pre-cleaned sewage without faeces and long-fibre components
  • Wastewater

Type key

E.g.:Wilo‐Drain STS 40/10‐A
STSTauchmotorpumpe (submersible pump)
40Nominal diameter [mm]
10Max. delivery head [m]
AWith float switch

Technical data

  • Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
  • Immersed operating mode: S1 or S3 25%
  • Protection class: IP 68
  • Insulation class: B
  • Thermal winding monitoring
  • Max. fluid temperature: 3 - 35 °C
  • Cable length: 10 m
  • Max. immersion depth: 7 m
  • Free ball passage: 40 mm

Equipment/function

  • Ready-to-plug single-phase version
  • A-model version including float switch
  • Thermal motor monitoring

Description/design

Submersible sewage pump as submersible monobloc unit for stationary and portable wet well installation.

Hydraulics

The outlet on the pressure side is designed as vertical screwed connection Rp 1½. Vortex impeller are used as the impeller shapes.

Motor

Glanded motors give off their heat directly to the surrounding fluid via the housing components and can be used in immersed state for permanent or intermittent operation.

A sealing chamber protects the motor from fluid ingress. The filling fluid used is potentially biodegradable and environmentally safe.

The single-phase AC motors are equipped with shockproof plugs, and A-model versions with float switches. The three-phase motors are equipped with bare cable ends.

Seal

Sealing on the fluid side is achieved by a bidirectional mechanical seal, while sealing on the motor side is achieved by a rotary shaft seal.

Materials

  • Pump housing: EN-GJL-250
  • Pedestal: grey cast iron
  • Impeller: stainless steel 1.4301
  • Shaft: stainless steel 1.4404
  • Mechanical seal on pump side: carbon/ceramic
  • Shaft seal on motor side: NBR
  • Static gasket: NBR
  • Motor housing: stainless steel 1.4301

Scope of delivery

  • Pump ready for connection with 10 m connection cable
    • For 1~230 V with shock-proof plug
    • For 3~400 V with bare cable end
  • A-model version with attached float switch
  • Installation and operating instructions

Accessories

  • Non-return valve and gate valve
  • Various pressure outlets and hoses
  • Switchgears and relays

Duty chart

Drain STS 40

Produkti

Design

Submersible

Single-channel impeller

-

Vortex impeller

Multi-channel impeller

-

Open multi-channel impeller

-

Macerator

-

Turbulator

-

Sealing chamber

Leakage chamber

-

Sealing by mechanical seal on motor side

-

Sealing by rotary shaft seal on motor side

Sealing by mechanical seal on fluid side

AC motor

Three-phase motor

Direct activation

Star-delta activation

-

FC operation

-

dry motor

Motor with oil cooling

-

Dry motor with closed-circuit cooling

-

Application

Wet well installation, stationary

-

Wet well installation, portable

Dry well installation, stationary

-

Dry well installation, portable

-

Equipment/function

Motor leakage monitoring

-

Sealing chamber monitoring

-

Leakage chamber monitoring

-

Motor temperature monitoring, bimetal

PTC motor temperature monitoring

-

Explosion protection

-

Float switch

Version A

Capacitor box for 1~230 V

integrated

Ready-to-plug

1~

Materials

Pump housing

Cast iron

Impeller

Cast iron

Motor housing

Stainless steel

Downloads

General overview

Edition 2017
Page format A4
Number of pages 72

PDF (46 MB)

Shkarko

Wilo-Drain STS 40/...A, STS 40/...

Article Number 2068717
Edition 0701
Version number 01
Page format A4
Number of pages 13

PDF (1 MB)

Shkarko

Produkti

PDF: Wilo-Drain STS 40

Konfiguro

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