Tsurumi-NH-series is a cast iron made, submersible wastewater pump utilizing 2-pole
motor. This impeller is a shrouded two-channel impeller. Each channel is
designed to have a larger area and it enables the pump to be suitable for
pumping wastewater containing a certain size of solids. The pumps are available in six
motor sizes ranging from 1.5 to 7.5kW and available in either High-Head or High-Volume Type

Applications

• Draining wastewater from kitchen at a hotel, restaurant, and
hospital, etc.
• Drainage from factory, underground car park, and basement, etc.
• High-head pumping of wastewater containing solid matters

1. Anti-wicking Cable Entry

An anti-wicking block is provided at the cable entry
section of the motor chamber. Even if the cable jacket
becomes damaged or the tip of the cable is accidentally
immersed in water, this device prevents water from traveling
into the motor chamber through capillary action.

2. Motor Protector

A built-in thermal motor protection device reacts to the excessive heat
caused by overcurrent or run-dry conditions. It not only cuts off the
motor circuit automatically but also resets by itself. When the motor
cools down to a safe operating temperature, the motor restarts

3. Dual Inside Mechanical Seal

A mechanical seal with dual seal faces containing silicon carbide (SiC)
is equipped with the oil chamber. As both upper and lower sealing
faces are lubricated by the oil only, it ensures a longer life of the
product and a stable sealing effect.

4. Oil Lifter (Patented)

The Oil Lifter is a lubricating device that forcibly lubricates the mechanical
seal. It further stabilizes the functions of the mechanical seal and
extends the life expectancy of the seal and also the maintenance term.

5. Air Release Valve

In order to prevent “air lock”, an air release valve is built in the pump
casing. The valve is similar to a ball check valve. When air goes
through the valve, the ball stays at the bottom, but when the pumped
water starts to flow, it closes the outlet by its buoyancy.

6. Seal Pressure Relief Port (5.5 & 7.5kW only)

A small chamber is provided between the oil seal and the shaft hole of
the pump casing, and this chamber is led to the outside by this hole.
With this device, the pumping pressure does not act on the mechanical
seal. The mechanical seal is protected from over rated limit.

Guide Rail Fitting System

The guide rail fitting system connects the pump to and
from the piping easily just by lowering and hoisting the
pump, allowing easy maintenance and inspection without
the need to enter the sump.
The TOS is the standard guide rail fitting system made of
cast iron and is compatible with cast iron pumps.

Accessories

• Duckfoot Bend
• Guide Support
• Guide Hook
• Lifting Chain 5m (with Shackles)
• JIS 10kg/cm2 Flange

Wilo-VeroTwin-DPL

Design

Glanded double pump in in-line design with flange connection

Application

For pumping heating water (in accordance with VDI 2035), water-glycol mixtures and cooling and cold water without abrasive substances in heating, cold water and cooling water systems

Special features / product benefits

• High-efficiency motors as standard; from 0.75 kW nominal motor power: motors with IE2 technology
• Reduction of space required and installation costs due to double pump design
• Main/standby mode or peak-load operation (by means of external auxiliary device)
• Standard condensate drainage holes in the motor housings and lanterns
• High corrosion protection thanks to cataphoretic coating
• Series version: Motor with one-piece shaft
• Version N: Standard motor B5 or V1 with stainless steel plug shaft
• Bidirectional mechanical seal with forced flushing
• Easy to install thanks to feet with threaded holes on the pump housing for all flange-end pumps

Technical data

• Permissible temperature range -20 °C to +120 °C
• Mains connection 3~400 V, 50 Hz (others on request)
• Protection class IP 55
• Nominal diameter DN 32 to DN 100
• Max. operating pressure 10 bar (special version: 16 bar)

EBARA               GRUNDFOS              KSB              WILO          TSURUMI

Design

KSB – Movitec A PumpDrive

Multistage, vertical, high-pressure centrifugal pump in ring-section design with suction and discharge nozzles of identical nominal diameters arranged opposite to each other (in-line design), close-coupled. ATEX-compliant version available.

Applications

Spray irrigation, irrigation, washing, water treatment, fire-fighting and pressure booster systems, hot water and cooling water recirculation, boiler feed systems etc.
Sizes
6 (LHS), 45, 65

Overview of technical data

Type of bearing Plain bearings
Drive frequency 50 Hz / 60 Hz
Type of drive Electric motor
Drive voltage Low voltage
Type of first impeller Radial
Other impeller types Radial
Type of installation In- line
Type of coupling Direct
Type of lubrication Oil / Product lubrication
Max. permissible fluid temperature 120 °C
Pump set location Dry installed
Stage casing material (EN standard) 1. 4301;1.4404
Suitable for drinking water Yes
Type of stage casing Stage casing with diffuser
UNSPSC classification 4015150300
Casing material (EN standard) 1. 4301;1.4401;JL1040
eClass assignment 36410101
Maximum head 401, 00 m
Installation position Vertical
Shaft seal type Mechanical seal
Main applications Industry and process engineering; Water;Building services
Casing material Chrome nickel steel
Maximum discharge-side pressure 40 bar
Maximum drive rating 45 kW
Type of installation Stationary
Maximum flow rate 75 m³/h
Maximum speed of rotation 2. 900 1/min

EBARA               GRUNDFOS              KSB              WILO          TSURUMI

Overview