Resources for Sizing and Sourcing Pumps

Selection guides and dimensional data for sizing pumps and checking fit against installed equipment.

Guides for sizing a pump and for checking whether ours fits your installation — written to answer a specific question rather than to fill a page. If a guide does not help you decide something, tell us and we will fix it.

Model coding and the five dimensions that decide physical fit
How flow, head and solids concentration change the selection
Where liner material makes the difference, and where it does not
Working principles explained for engineers, not for search engines
Dimensional drawings issued on request for pre-order checking
Parts made against drawing or sample where the model is unknown

Ask Our Engineers →Request Dimension Drawings

CE · EAC · ISO 9001 · ISO 14001 · ISO 45001

Start Here

Most people arrive at this page for one of two reasons: they are sizing a pump for a duty, or they are checking whether our pump and wear parts will fit equipment already installed. Both are covered below.

Slurry pump selection resources Wear parts inside the double casing — what the guides refer to. — Wear parts inside the double casing — what the guides refer to.

Sizing a Pump for a Duty

Selection is decided by the slurry before it is decided by the duty point. The questions that matter, in order:

What is the largest solid? Not the average — the largest. It sets the minimum pump size regardless of flow and head.
What is the solids concentration and density? Both raise the head the pump must generate and the rate at which it wears.
What is the pH? Below pH 5 the high-chrome grades are not appropriate, and the material decision changes entirely.
Are the particles angular or rounded? Shape decides between metal and elastomer more reliably than hardness does.
Then flow and head. Only now does the duty point become meaningful.

Checking Fit Against an Installed Pump

We publish our own model coding and dimensional data so that fit can be checked before an enquiry is raised. Our model numbers describe the pump: in the form 10/8ST-SAH the first figure is the discharge diameter in inches, the second the suction diameter, the letters the frame form, and the final group the series.

Five dimensions decide whether a pump or part will physically fit — connection diameters, mounting footprint and bolt pattern, discharge flange group, shaft and sleeve dimensions, and impeller axial position relative to the front liner. All are published per model. Where the model number on an installed pump is unreadable, parts can be manufactured against a dimensioned drawing or a sample part.

The sets this out in full.

Selection Guides

— model coding, frame types and the five fit dimensions.
How a Dredge Pump Works — working principle and the design choices that follow from it.
Wear Material Selection — the nine-grade system and how to match a grade to the wear mechanism.
Froth Pump Selection Procedure — the ten-step method and the Froth Volume Factor.
Bearing Assembly Data by Frame Type — grease charge, gland water rate and axial adjustment.

Independent Manufacturer

The pumps and wear parts described across this site are designed and manufactured by SHANGLISHI PUMP GROUP as an independent manufacturer. They are not manufactured by, affiliated with, endorsed by, or authorised by any other pump manufacturer. All model designations, dimensions and material grades shown are our own.