Wilo-Drain MTS

Special features/product advantages

  • Cutter design yields fine solids for non-clogging operation
  • High degree of efficiency
  • Low operating costs
  • Resistant to obstructions and blockages
  • Macerator with scissors cutting action virtually eliminates clogging
  • Sealing chamber
  • High operational reliability
  • Corrosion-resistant stainless steel in AISI 316L (1.4404)
  • Explosion protection: FM Class 1, Division 1, Group C&D (MTS 40E… only)

Series description

Design

Submersible grinder pump with single-channel impeller for sewage as submersible monobloc unit for stationary and portable wet well installation. Motor available without (dry-motor) integral cooling system.

Application

Pumping of water containing domestic sewage. The Wilo macerator breaks up the solids into smaller pieces to produce an easily pumped fluid.

The MTS40 grinder pump is used typically in pressure sewer applications - both municipal and residential.

  • Pressure sewer, residence, camping site, etc.
  • Installation costs are reduced significantly due to the small pipe diameter, e.g. 1.6" (40 mm).

Type key

e.g.:

Wilo-Drain MTS 40/165-3-460-60-2

MT

Macerator technology

S

Stainless steel motor

40

Nominal discharge diameter [mm]

165

Max. delivery head [ft]

3

Phase specification

460

Rated voltage

60

Frequency

2

Number of poles

e.g.:

Wilo-Drain MTS 40 E 143.80/40-3-460-60-2

MT

Macerator technology

S

Stainless steel motor

40

Nominal discharge diameter [mm]

E

Single-channel impeller

143

Max. delivery head [ft]

80

Max. volume flow [USgpm]

40

Nominal power P2 (value/10 = 4.0) [hp]

3

Phase specification

460

Rated voltage

60

Frequency

2

Number of poles

Technical data

  • Power connection: 1~230 V/60 Hz, 3~230 V/60 Hz or 3~460 V/60 Hz
  • Submerged operating mode: continuous duty (S1)Non-submerged operating mode: rated minutes operation (S2 or S3)
  • Protection class: Submerged under pressure (IP 68)
  • Insulation class: F
  • Thermal winding monitoring (normally closed contacts)
  • Max. fluid temperature: 37-104 °F (3-40 °C)
  • Cable length: 25 ft (8 m)

Equipment/function

  • Innovative patented macerator
  • Unimpeded flow to the impeller
  • Internal rotating blade
  • Spherically formed macerator
  • Grinding/maceration of substances being pumped
  • Shearing cut (scissors cut)

Description/design

Submersible grinder pump as submersible monobloc unit with internal patented macerator cast in AISI 440B+Co solid stainless steel. Pump is designed for wet pit installation on guide rails or for use in portable applications in intermittent operation.

Hydraulics

The outlet on the pressure side is designed as a horizontal threaded or flange (for MTS 40E…) connection with a discharge size of 1.6" (40 mm). Double shrouded single-channel impellers are used in the design.

Motor

Glanded motors conduct heat directly to the surrounding fluid via the housing components and can be used in submerged state for permanent and intermittent operation.

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

Cable lengths are available in fixed lengths measured in 25 ft (8 m) intervals.

Sealing

Sealing on the fluid side is done using a bidirectional mechanical seal. For type MTS 40… , the seal used is a rotary shaft seal and for type MTS 40E…, it is a bidirectional mechanical seal.

Materials

  • Pump housing: ASTM A48 Class 35/40B (EN-GJL-250)
  • Impeller: ASTM A48 Class 35/40B (EN-GJL-250)
  • Shaft: Stainless steel AISI 420 (1.4021)
  • Mechanical seal on pump side: SiC/SiC
  • Shaft seal on the motor side (for MTS 40…): Nitrile (NBR)
  • Mechanical seal on the motor side (for MTS 40E…): SiC/SiC
  • Static gasket: Nitrile (NBR)
  • Motor housing: Stainless steel AISI 316L (1.4404)
  • Macerator: Stainless steel AISI 440B+Co (1.4528)

Scope of delivery

  • Pump ready for connection with 25 ft (8 m) connecting cable with bare end
  • Installation and operating instructions

Accessories

  • Guide system and pump base
  • Lifting chains or cables
  • Control panels and relays

Duty chart

Duty chart

Product

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

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

-

Capacitor box for 1~230 V

-

Ready-to-plug

-

Materials

Pump housing

Cast iron

Impeller

Cast iron

Motor housing

Stainless steel

Downloads

Wilo-Drain TP 80..., STS 65..., MTS 40 E..., TP 100..., STS 80... (FM approved)

Article Number 6045568
Edition 0906
Version number 01
Page format US Letter
Number of pages 9

PDF (165 kB)

Download

Wilo-Drain MTS 40

Article Number 6044785
Edition 0904
Version number 02
Page format Invoice
Number of pages 32

PDF (1 MB)

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