At Midwest Valves we are always happy to help. Below are some frequently asked questions. If you have father queries or questions please do not hesitate to contact us.
What are your opening hours?
8.30 – 5pm Monday to Friday, 9am to 12pm Saturdays
Do you deliver all over Australia?
It is possible depending on the size of the freight consignment.
Can your source product not listed on the site?
Yes, simply contact us if your product is not listed.
When do you need to install a shroud on a submersible borehole pump?
A shroud is needed to cause the water in the bore to flow up past the motor into the pump inlet to assure that there is adequate motor cooling.
For example in a 150mm bore casing a flow rate of 0.9 litres per second is required to remove the need for a shroud using a 100mm Franklin motor.
What is the PN rating for a valve?
PN is the nominal working pressure rating. The number used to describe PN is 10 times the value the maximum allowable operating pressure at 20˚C in MPa based on a design factor of 1.25.
What is a kinetic air/ vacuum valve?
A kinetic air/vacuum valve will exhaust large quantities of air from the pipeline when it is filled with water at low pipeline pressure (kinetic air release function).
It will allow large quantities of air into the pipe when the internal pressure drops below atmospheric pressure due to transient conditions.(kinetic anti-vacuum function).
If you question is not answered above feel free to contact us directly: