Clearances Restored To Print
Wear ring and running clearances are measured and brought back to specification, recovering the efficiency that open clearances silently consume.
About Us
To put pumps and valves into service that match the duty they will actually see, documented with test records that give operators evidence rather than reassurance.
Who We Are
About Our Company
Pro Liquid manufactures, supplies and services industrial pumps and valves for water, process and heavy duty applications. On the pump side we cover end suction and split case centrifugals, multistage, vertical turbine, submersible, slurry, sanitary and positive displacement types including gear, progressive cavity, diaphragm and peristaltic. On the valve side we supply and build gate, globe, ball, butterfly, check and control valves with pneumatic, electric and hydraulic actuation. Our shop machines wear parts, balances impellers, fits and aligns mechanical seals, and performs hydrostatic and seat leakage testing with documented results.
What brings plants around to Pro Liquid is selection discipline. A pump that was correct for a system twenty years ago is often running far from its best efficiency point today, because piping, demand and controls have all changed. We measure or calculate the current system curve, confirm available suction head against required net positive suction head, and recommend trimming, replacing or controlling the unit accordingly. The same discipline applies to valves, where body material, trim selection, pressure class and actuator sizing have to match the service rather than simply fitting the flange.
Core Capabilities
- Every valve is shell and seat tested with results recorded per serial.
- Castings are inspected for defects before machining begins.
- Performance testing is carried out on a calibrated test rig before shipment.
- Rotating assemblies are balanced and the results recorded before assembly.
- Material selection is justified against fluid, solids and temperature.
- Pump selection is calculated against the measured system duty point.
Our Mission
To put pumps and valves into service that match the duty they will actually see, documented with test records that give operators evidence rather than reassurance.
Our Advantages
Why Clients Choose Us
Performance Tested Before Shipment
Rebuilt pumps run against the original curve on our test loop, so shortfalls are found in our shop rather than during your commissioning.
Materials Matched To The Fluid
Body, trim and elastomer selection follows the actual service conditions, including solids and temperature, not just the line size on the drawing.
Every Valve Tested And Certified
Hydrostatic shell and seat leakage testing to recognized acceptance criteria, with certificates issued, so shutoff performance is proven rather than claimed.
Seal Failures Investigated
Returned seals are examined and the piping plan reviewed. Repeat failures almost always point at flush, suction conditions or alignment rather than the seal itself.
Duty Point Verified, Not Assumed
We calculate or measure the current system curve before recommending a pump, because systems change far more often than the pumps serving them.
Duty Point Verified
Selection and rebuild decisions start from the measured system curve, because most pumps run far from their best efficiency point and nobody noticed.
Rebuilt To Print
Wear ring, impeller and shaft clearances are measured and restored to drawing tolerance, since a cleaned and reassembled pump is not a rebuilt one.
Materials For The Fluid
Wetted material selection is justified against fluid chemistry, solids content and temperature, which is where most premature pump wear originates.
From Our Desk
Insights & Updates
Sizing Valve Actuators For Real Conditions
Differential pressure, stroke time, failure position and supply pressure all matter. Why catalog-default actuator sizing leads to valves that stall under load.
What A Failed Seal Face Reveals
Heat checking, grooving and chipping each point at a different cause. A visual guide to reading returned seals before ordering a replacement.
Net Positive Suction Head In Plain Terms
Cavitation is an arithmetic problem before it is a mechanical one. Calculating available head, comparing it to pump requirement and fixing the margin.
Running Off Curve Costs More Than Energy
Operating far from best efficiency drives vibration, seal failures and bearing loads. How to recognize it from field readings and what to do about it.
Client Feedback
What Clients Say
They measured our system instead of reading the old nameplates. Trimming two impellers cost far less than the new pumps we had budgeted, and the vibration problems disappeared.
H. LindemanOperations Engineer, Water Utility Client
The valve certificates arrived with the valves, properly filled out. Our quality auditor had no questions, which has not always been our experience with valve suppliers.
Y. SandovalQuality Manager, Chemical Processing Client
Our seal failures were a flush problem, not a seal problem. They fixed the piping plan and the pumps have run cleanly since.
J. AmiraultMaintenance Superintendent, Pulp & Paper Client
Not Sure Your Pump Still Fits The System?
Ask Pro Liquid for a duty point assessment. We will measure or calculate your system curve and show where the pump is actually operating.
