API 11AX subsurface pumps

Are the following categories of subsurface pumps for SRP application for artificial lift are API pumps?
API-25-175-THM-16-4-4
API-25-175-RHAM-16-4-4
API-25-150-RHTM-16-4-4
API-25-125-THM-16-4-4
API-25-125-RHAM-16-4-4

Relationship Between Fixed and Variable Speed Pump

We have a tailings pump system which pumps tails to our tails dams.There is 2 pumps, one being a fixed speed and one a variable speed.The variable speed is last in line to control the level in the tank.The problem we have is when the variable speed is running and we try to start the fixed speed, it

The Future Internet

A recent article in Network World makes 10 predictions about what the Internet will be like in the year 2020. Some of them are no-brainers, such as: "more people will use the Internet" than do so today; it will be more geographically dispersed; and it'll attract more hackers. Others might be less ex

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Dean Kamen, the inventor of the Segway, says our media-driven world has given children, and especially girls and minorities, so many sports and entertainment heroes, that by the time they are 12 years old they want nothing to do with science and engineering. It's likely that in today's world, a typi

Is National Certification Helpful?

National certification of machining skills is good for everyone. Employees can go anywhere and prove they have the right skills for the job. Employers can be confident that the individuals they hire can do what they say they can do. So what schemes exist and how do they operate? In the U.S., the Nat

Recycle Your Brakes?

There are some engineers who would design braking systems, but would never change the brakes on their own car by themselves. And then there are those who won't let anyone touch their machines. Whichever you might be, what do you think about using 'used' brakes? Recent articles detail a joint researc

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Long-time Machine Design editor, Ken Korane, recently provided food for thought with an editorial about engineering companies making gains despite hard times. One key to success: partnering with companies that provide innovation, cost-effective production, and energy-efficient design. Working with p

BLDC Drives Is Not Working

Sir,

Power Tec 1000 BLDC Drives Speed Control Cord 141-107&current control cord141-108

Eanable LED.RUN LED Are not On This PCB Voltage24 Dc Is Not TherPin no TB2 4to12

Any One Help You IOC LED Ofter 5 minits on Power LED, On,Bus LED on,

Idea for small home business

I need to design a machine that will drop powder into small 1/4 oz jars or medical pots for retail sale. I have decided to cheap fabricate something out of pvc and have a few ideas how the spill port should work. It will be manual first, then automated later if order demand is high.

I am uncle

Pumping relay setup

I need to set up a float system using two 11 pin relays and a timer and am not sure how the best way to wire. when float 1 is low (closed) I need to active #1 pump and mixer. When float goes high (open) I need #1 pump to stop and mixer to continue 20 minutes. After mixer stops if float 2 goes low (c

Evinrude problems

I am having trouble with our Evinrude 15hp boat motor. It starts fine first thing then after we have been sitting fishing for a while it won't start. The first time it happened the motor took a while to turn off and when we went to restart noticed the bulb on the fuel hose had gone soft. Sometimes w