China Pump & Vacuum Equipment - Page 281

Brief Introduction

QDWF(J) serial light-duty stainless steel horizontal multi-stage centrifugal pumps are non-priming horizontal multi-stage centrifugal ones made by absorbability of world's advanced technology and design, including subsection type and cylinder type .With horizontal motors and quickly equipped mechanical seals, it is convenient for components replacement. They can be applied to slightly corrosive medium due to the flow passage parts made of stainless steel (304) and are substitutes for CH of the same kind used in abroad, warmly welcomed by users because of their high efficiency , low energy consumption, reliable quality and wide applications.

Feature

Tremendously improve performance and enhance product life due to adoption of excellent water power model and advanced making technics. 2. Enhance operating reliability and conveying medium temperature because of the use of horniness alloy and fluorin rubber mechanical seals. 3. Applied to slightly corrosive medium due to flow passage parts made of stainless steel after process of pressing and welding. 4. Compact structure, small size, light in weight, low noise, remarkable energy saving, easy for overhaul and maintenance. 5. To avoid damages from dry rotation, lack of electric phase, over-load etc because aptitude protector can be equipped on users' request. 6. Axial inlet and radial outlet, attached with long shaft electric motor.

Application

1. Air-conditioning system

2. Cooling system

3. Industrial cleaning

4. Water treatment(Water purification)

5. Aquiculture

6. Fertilizing/metering system

7. Environmental application

8. Other special applications

Working Condition

1. Medium temperature: -15c ~+120c

2. Max ambient temperature: +40c

3. Max ambient pressure: 10bar.

4. Advisable to use motor of higher power in case that the density or viscosity of medium is above that of water.

Medium

1. Thin, clean, non-flammable, non-explosive medium containing no granule or fibre.

2. Such as mineral water, softened water, pure water, clean oil and other light chemical medium.

3. Slight corrosive medium.

Motor

Full-enclosed ventilating two-pole standard motor

Protection class: IP55

Insulation class: F

Standard voltage (50Hz): single phase, 220V Three- phase 220V/380V.

Product Description

F Standard centrifugal pumps (Big flow)

PUMP INSTALLATION AND APPLICATIONS:

These pumps are recommended for clean water and fluids which are not chemically aggressive to the pump components. THEY ARE MAINLY USED FOR CIVIL, INDUSTRIAL AND AGRICULTURAL APPLICATIONS, WHERE THEY MAKE THE MOST OF THEIR STURDINESS AND DEPENDABILITY. They are manufactured to EN 733 - DIN 24255 standards. Overall dimensions, sizes and positions of suction and delivery openings, support feet and performance comply with these standards. Their structural shape allows dismantling without disconnecting the pump body from the pipeline (back pull out), making them easy to use in widely varying conditions. They should be installed in a covered area, protected against

weather.

PERFORMANCE RANGE

3 Flow rate up to 400 l/min (240m3/h)

Dynamic head up to 136 m

OPERATING LIMITS

Suction lift up to 7 m

Fluid temperature up to + 60

Maximum ambient temperature + 40

AISI 316 stainless steel motor shaft

mechanical seal with different materials

IP 55 protection

other voltages

60 Hz frequency

for higher temperature pumped liquids

for use in areas with a higher temperature

Max operating pressure 15 bar

STRUCTURAL CHARACTERISTICS

PUMP BODY:cast iron, manufactured to EN 733 - DIN 24255 and UNI 7467-NF E-44-111 standards,

built with flanged suction and delivery openings (UNI 2236 PN10).

PUMP BODY COVER: cast iron which closes the rear pump body and houses the mechanical seal.

IMPELLER: Cast iron

MOTOR SHAFT: AISI 304 stainless steel.

MECHANICAL SEAL: ceramic and graphite.

MOTOR:

the pumps are coupled to an asynchronous, high efficiency USR induction motor of suitable size, which is quiet, closed and externally ventilated, suitable for continuous duty.

INSULATION class B.

Motors require an adequate external motor protector, and connections are to be according to current standards.

PROTECTION: IP 44.

WARRANTY: 2YEARS

(according to our general sales conditions).

SPECIAL FEATURES ON REQUEST:

AISI 316 stainless steel motor shaft

mechanical seal with different materials

IP 55 protection

Material: Brass

PN: 1.0mpa

O-ring Sealed

Size: 1/4"-1"

Compression, weld and thread connection

It makes high-speed to-and fro motion at the drive of cyclically alternate magnetic field produced by electromagnetism coil by the using of sine-wave alternating voltage. Small volume, light weight, easy movement, simple installation.

It is could be used in garden for all kinds waterfall use.

PV series low-noise vane pump is specially made for low noise operation high-pressure vane pump. These series vane pumps are reliable and adaptable and have been widely used in injection molding machine, pressure die casting machine, metal cutting machine tool and other hydraulic systems. The displacement of these series vane pumps is 5.8-237cm3/rev. The pump core parts are made into component so that it is interchangeable and easy to repair.

Working principle

The jet series are self-priming centrifugal pumps.Self-priming is achieved using an ejector, housed in the pump body.The total delivery produced by the closed centrifugal impeller is sent only party to the delivery opening.The remaining water is recirculated through the ejector, which is connected to the suction chamber and generates the necessary vacuum of self-priming the pump.When first starting the pump fill the pump body with water, without bothering to fill the suction piping and eliminate any air pockets.When the pump is started up the water in the pump body circulates

Through the ejector and transfers any air from the suction to delivery chamber, expelling it through the delivery piping.At the same time the vacuum thus generated causes water to rise in the suction piping, thus self-priming the pump.Since the selfpriming system operates continuously, these pumps

Are practically unaffected even by the presence of large amounts of entrained air in the fluid being pumped.The jetw series, based on past top experience, is designed with particular attention to hydraulic efficiency and choice of materials.The result is compact, quiet high performance pump.

Pump installation and applications

These pumps are suitable for pumping clean water and fluids which are not chemically aggressive to the pump components.

They are extremely reliable, economical and simple to use, being particular suitable for domestic applications such as the automatic distribution of water from samll and medium-size surge tanks, transferring water, watering gardens, ect

These pumps should be installed in a covered area, protected against the weather.

Performance

The wide range of pumps in the jetw series satisfied the most varied requirements with features such as:

-high heads with respect to power requirements;

Apply scope

IDB series water pumps are an ideal household water pump for families, gardens, hotels and villas.

Introduction of framework

Copper whorl wheels share the axes with electric engines, horizontal. Casting aluminium or casting iron pumps, 45# steel axes, sealed machinery on both sides. It has small size, light weight, energy saving and good protection and convenience.

Installation and use

For water below 40º C or similar to water physically or chemically.

Pumps DB-400

Brand: DAIBAO

Type: DB-400

Voltage: AC12-250V

Power: 13W

L/H: 800L/H

Hmax(m): 1.5M.

Name: GWMZ-22A

OUR NO. 04-022

Remark:

PCS/CTN 10

DIMENSION 77*25.6*20

G. W 23.5

OEM NO. SE01-15-010 8AW1-15-100 8Aw3-15-100/A