Ross Mackay

Latest Posts

• Re: Drop curves for a single convolution expansion joint(Last post: 7 years ago)
• Re: Best selection criteria for a centrifugal pump(Last post: 7 years ago)
• Re: (Last post: 7 years ago)
• Re: Configuration for centrifical water sludge pumps(Last post: 7 years ago)
• Re: Correct arrangement for isolation and NRV valves(Last post: 7 years ago)
• Re: Quantifying liquid density effects on NPSH(Last post: 7 years ago)
• Re: Alternative pump solutions(Last post: 7 years ago)
• Re: Pump suction lift(Last post: 7 years ago)
• Re: Pump shaft failures(Last post: 6 years ago)
• Re: Pressure-boosting pump(Last post: 6 years ago)
• Re: Energy efficient pumps(Last post: 6 years ago)
• Re: Suction line strainer(Last post: 6 years ago)
• Re: Discharge pressure, flow rate changes(Last post: 6 years ago)
• Re: Final destination criteria(Last post: 6 years ago)
• Re: Determine valve type(Last post: 6 years ago)
• Re: Calculate static discharge head(Last post: 6 years ago)
• Re: Suction and discharge pump nozzles diameter(Last post: 6 years ago)
• Re: High pressure sluice water pump problems(Last post: 6 years ago)
• Re: Fluid viscosity and NPSHR(Last post: 6 years ago)
• Re: Vertical centrifugal pump installation(Last post: 6 years ago)
• Re: Unknown pump performance increase(Last post: 6 years ago)
• Re: Pump reducer location(Last post: 6 years ago)
• Re: Expander installation(Last post: 6 years ago)
• Re: Recommended material for rotary pumps(Last post: 6 years ago)
• Re: Expansion pipe joints(Last post: 6 years ago)
• Re: Determine static discharge head(Last post: 6 years ago)
• Re: Suction piping diameters(Last post: 6 years ago)
• Re: Pump expander installation(Last post: 6 years ago)
• Re: Replacing wear rings(Last post: 6 years ago)
• Re: Eccentric and concentric reducers(Last post: 6 years ago)
• Re: Training videos(Last post: 6 years ago)
• Re: Flow rate test data(Last post: 6 years ago)
• Re: Suction line size effect on pumps(Last post: 6 years ago)
• Re: NPSH requirement(Last post: 6 years ago)
• Re: Design for two-phase flow of emulsion, gas line(Last post: 6 years ago)
• Re: Stable pump flow(Last post: 6 years ago)
• Re: Impeller balance holes(Last post: 6 years ago)
• Re: Vertical pump installation(Last post: 6 years ago)
• Re: Low-flow pump after repair(Last post: 6 years ago)
• Re: Malfunctioning pump discharge valve(Last post: 6 years ago)
• Re: Diaphragm pump guidelines(Last post: 6 years ago)
• Re: What is the optimal direction for the discharge nozzle to point on a centrifugal pump?(Last post: 5 years ago)
• Re: What is the effect at the pump suction and discharge if the vacuum is raised?(Last post: 5 years ago)
• Re: Justifying minimum flow facilities(Last post: 5 years ago)
• Re: Quick questions about centrifugal pumps(Last post: 5 years ago)
• Re: Multi-stage pumps versus rotary pumps(Last post: 5 years ago)
• Re: Deciding between screw-type pumps and centrifugal pumps(Last post: 5 years ago)
• Re: Explaining the NPSH(Last post: 5 years ago)
• Re: What's Causing The Pump To Trip?(Last post: 4 years ago)
• Re: What’s the right piping design?(Last post: 4 years ago)
• Re: How Many Pumps Should Pass Acceptance Test?(Last post: 4 years ago)
• Re: Pumps: Finding The Correct Net Suction Pressure(Last post: 4 years ago)
• Re: Can the suction size of the pump be bigger than the pipeline?(Last post: 4 years ago)
• Re: Do I need to estimate the NPSHR for my pump supplier?(Last post: 4 years ago)
• Re: How do you correctly size piping leading to centrifugal pump?(Last post: 4 years ago)
• Re: What is the material design for a bare shaft pump?(Last post: 4 years ago)
• Re: Can you suggest a good resource for pump selection, installation and replacement?(Last post: 4 years ago)
• Re: Is there a distance limit on pump reducers and expanders?(Last post: 4 years ago)
• Re: Should we correct the customer's pipe-size dimensions?(Last post: 4 years ago)
• Re: How do you determine pump RPM?(Last post: 4 years ago)
• Re: What's causing the pump to trip?(Last post: 4 years ago)
• Re: How do you decide between steam or electrical turbines?(Last post: 4 years ago)
• Re: How do you calculate the discharge head and suction head?(Last post: 4 years ago)
• Re: What is the power factor of VFD systems?(Last post: 4 years ago)
• Re: What pump is best to empty bulk containers?(Last post: 4 years ago)
• Re: What is each pump characterization curve used for?(Last post: 4 years ago)
• Re: Why is there a difference in pump output?(Last post: 3 years ago)
• Re: Can you offer best practices and guidelines for pump recirculation?(Last post: 3 years ago)
• Re: What happens when two pumps lead into the same system?(Last post: 3 years ago)
• Re: What is the best way to arrange a discharge header?(Last post: 3 years ago)
• Re: What is the reason behind multiple pumps discharging into a common header?(Last post: 3 years ago)
• Re: Why is an expander required on the discharge side of a pump?(Last post: 3 years ago)
• Re: How do we determine pump configuration?(Last post: 3 years ago)
• Re: Is there value to installing pump suction strainers?(Last post: 2 years ago)
• Re: What is the difference between vent and recirculation lines?(Last post: 2 years ago)
• Re: Why does our new pump have a lower flow rate?(Last post: 2 years ago)
• Re: What is a good arrangement from the pump discharge flange?(Last post: 2 years ago)
• Re: How best to install a Non-Return Valve(Last post: 2 years ago)
• Re: Is it necessary to install an expansion joint at pump discharge piping?(Last post: 2 years ago)
• Re: What are the limitations of centrifugal pumps?(Last post: 2 years ago)
• Re: What is causing the strainer to choke?(Last post: 2 years ago)
• Re: What are the disadvantages of putting a strainer on the discharge of a pump?(Last post: 2 years ago)
• Re: Does the velocity in the suction line need to be maintained?(Last post: 1 year ago)
• Re: Is dynamic balancing important?(Last post: 1 year ago)
• Re: Why are we experiencing anti-rotating device failures at an alarming rate?(Last post: 1 year ago)
• Re: What is causing the vibration in the pump?(Last post: 1 year ago)
• Re: What is the best arrangement for a minimum flow line from a pump?(Last post: 1 year ago)
• Re: Why is our pump operating at a lower pressure and drawing higher amps?(Last post: 1 year ago)
• Re: Can we double or triple the RPM of a positive displacement pump?(Last post: 9 months ago)
• Re: What's the best pump for adhesives and polymers?(Last post: 6 months ago)
• Re: How can we reduce vibration on pipes to avoid quality issues?(Last post: 5 months ago)
• Re: What is a "lo valve" in suction pipe of pumps?(Last post: 4 months ago)
• Re: Why are we experiencing anti-rotating device failures at an alarming rate?(Last post: 4 months ago)