Qt500-7 Ductile Iron Impeller Centrifugal Pump Impeller

Product Description

We use resin sand technology;

Classification:
1. Closed impeller: consists of blades and front and rear cover plates. The closed impeller is more efficient
and difficult to manufacture. It is most used in centrifugal pumps. It is suitable for conveying clean water, solution and other
clean liquids with low viscosity without particles.

2. Semi-open impeller: Generally, there are two structures. One is the
front semi-open type, which is composed of a rear cover and blades. The efficiency of the impeller of this structure is low.
In order to improve the efficiency, it needs to be equipped with an adjustable gap seal ring. The rear half-open type is
composed of a front cover and blades. Because the same sealing ring as the closed-type water pump impeller can be
applied? The efficiency is basically the same as that of the closed-type impeller. In addition to transporting liquid, the blades
also have: back blades or auxiliary impellers Sealing function. The semi-open impeller is suitable for conveying liquids
containing suspended solids such as solid particles and fibers. The semi-open impeller is less difficult to manufacture,
lower in cost, and highly adaptable. In recent years, it has been increasingly used in centrifugal pumps for refining and
chemical industries, and is used to transport clear water and liquids similar to clear water.

3. Open impeller: an impeller
with only blades and blade stiffeners, without front and rear cover plates. The number of open impeller blades is less
than 2-5. The pump impeller is low in efficiency and has fewer applications. It is mainly used to transport liquids with higher
viscosity and slurry liquids.
 

General Products Application/Service Area	Metal Parts Solution for Vehicle, Agriculture machine, Construction Machine, transportation equipment, Valve and Pump system. E.g. Hydraulic valve, engine bracket, truck chassis bracket, gear box , gear housing , gear cover, shaft, spline shaft , pulley, flange, connection pipe, pipe, hydraulic valve , valve housing ,Fitting , flange, wheel, flywheel, oil pump housing, starter housing, coolant pump housing, transmission shaft , transmission gear, sprocket, chains etc.
Main Blank Process for Ductile Iron Casting Pparts	Sand Casting , Resin Sand Casting, Green Sand Casting, Shell Molding, Automatic Molding, Lost Wax Casting, Lost Foam Molding Casting etc.
Blanks Casting Tolerance	CT8-14 for iron casting
Applicable Material	Ductile Iron, Grey Iron Casting, or as customer request.
Casting Blank Size /Dimensions	2 mm-2000mm / 0.08inch-79inch for casting iron, as per customer requirement
Casting Blank Weight	Range from 0.01kg-1000kg for casting iron
Applicable Machining Process	CNC Machining/ Lathing/ Milling/ Turning/ Boring/ Drilling/ Tapping/ Broaching/ Reaming /Grinding/Honing and etc.
Machining Tolerance	From 0.005mm-0.01mm-0.1mm
Machined Surface Quality	Ra 0.8-Ra3.2, according to customer requirement
Applicable Heat Treatment	Normalization , annealing, quenching and tempering, Case Hardening, Nitriding, Carbon Nitriding, Induction Quenching.
Applicable Finish Surface Treatment	Shot/sand blast, polishing, Surface passivation, Primer Painting , Powder coating, ED- Coating, Chromate Plating, zinc-plate, Dacromat coating, Finish Painting etc.

 

Chemical Composition(%)	C	Si	Mn	S	P	Mg
QT500-7	3.5-3.9	2.3-2.9	≤0.6	≤0.025	≤0.08	≤0.02-0.04

Q: Are you trading company or manufacturer ?
A: We are factory.

Q: How long is your delivery time?
A: Generally it is 5~10 days if the goods are in stock.Or it is 45 days if the goods are not in stock, it is according to
quantity.

Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shipment.
irrevocable LC at sight.