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Sprinkler Valves 12v Dc-Sprinkler Valves 12v Dc Manufacturers, Suppliers and Exporters on Alibaba.comValves. 1" 3/8" 1/2" 3/4" 1/4"irrigation Sprinkler Pulse Dc 24v,220v,230v Pilot Solenoid Valve Zcs-11bk Photo, Detailed about 1" 3/8" 1/2" 3/4" 1/4"irrigation Sprinkler Pulse Dc 24v,220v,230v Pilot Solenoid Valve Zcs-11bk Picture on Experiments in Garden Hose Hydraulics. I recently decided to make a proof-of-concept for a simple hydraulics kit.

Experiments in Garden Hose Hydraulics

Ultimately you would be able to take this kit, get some standard PVC pipe from the local hardware store, and very quickly build your own simple hydraulic devices. Use it to learn about the principles of hydraulics while staying cool on a hot summer day, or use it to power your homemade tools like simple presses, lifts, or even an articulated digging arm. Double-acting PVC hydraulic cylinder and control valve The pressure in your typical garden hose is nominally around 40 psi or so, so my first hydraulic cylinder should be able to develop about 125 pounds of force if it had really good seals.

A Primer on PVC, CPVC, and O Rings. Left-to-right: 3/4″ CPVC, 1″ CPVC retainer, -212 O-ring, 1″ CPVC retainer, 1″ CPVC fitting Several of my recent design projects have required properly-fitting o-rings, and yet as I looked around the web, I was frustrated at my inability to find a good practical explanation of their use.

A Primer on PVC, CPVC, and O Rings

Which size o-rings fit with which size pipes? Which pipe sizes nest closely? Compact ROR hydropower generator for use in rivers and streams. Cappa is a small hydropower generator designed to be used in natural water flows such as rivers and waterways.

Compact ROR hydropower generator for use in rivers and streams

Developed by Ibasei, this system uses a special housing which can increase and then recover the energy of flowing water, without using a head of water like conventional hydropower. It also doesn't require earth-moving work to be installed and can be fixed in place along a river or waterway. "This machine uses a special housing called a diffuser. In this way, it utilizes special technology to increase the rate of water flow through the vanes that extract energy.

That energy turns the vanes, and gets converted to electricity by a generator. "With water flowing at 2.0 m/s, this system can produce 250 Wh. As this system relies on the natural current of the waterway, its uptime is virtually 100%, and the machine itself is 100% recyclable. Trompe. A Catalan forge trompe A trompe is a water-powered gas compressor, commonly used before the advent of the electric-powered compressor.


A trompe is somewhat like an airlift pump working in reverse. Trompes were used to provide compressed air for bloomery furnaces in Catalonia[1] and the USA.[2] The presence of a trompe is a signature attribute of a Catalan forge, a type of bloomery furnace. In Paris they were used for a time to compress air to drive the city's first electricity generation scheme, and in the Alps they were used in France and Switzerland to provide compressed air for early alpine tunnels.[3] Trompes can be enormous. Operation[edit] Trompes are very simple devices.

Water rushing down the vertical pipe falls through a constriction. The energy of the falling water entrains the air into the water, but that is not the energy that pressurizes the air, as is often incorrectly claimed. See also[edit] References[edit] The Trompe - An Almost Forgotten Air Compression System.

The simple, yet brilliant, Trompe A Trompe (also spelled Trombe) is a water powered air compressor system.

The Trompe - An Almost Forgotten Air Compression System

This simple device was used for hundreds of years to produce compressed air for furnaces, mining equipment, ventilation systems, and even for air conditioning and ice production. Trompes were almost entirely replaced when fossil fuels, with their high energy potential, came into more general use at the beginning of the twentieth century (I believe the only large scale Trompe still in use is at the Ragged Chute plant on the Montreal River in Ontario, Canada). Unfortunately, the knowledge of these systems has been almost completely forgotten. At this time of increasing energy prices and likely post-peak oil, this is the type of information that needs to be shared and implemented. The Trompe at the Ragged Chute Plant in Canada. Pulser pump. I give permission to reuse and adapt any and all pictures and animated gifs that I have produced in the past for this project.

Pulser pump

Brian White, 3rd May 2010 Diagram of a Pulser Pump The pulser pump is a simple, water powered mechanical device, also known as a bubble pump. Components of this pump have been used for various purposes, including the extraction of oil or in refrigeration cycles. Heat driven bubble pumps are most common, but this particular design of a pulser pump using the turbulent flow in a stream to trap air has yet to become common. [edit] Background Information. Harness Hydro Power with a Trompe - Renewable Energy. The trompe.

Harness Hydro Power with a Trompe - Renewable Energy

Its use dates back to the beginning of the Iron Age, and yet — like many good ideas involving the manufacture of power — the trompe concept has been all but forgotten in the recent stampede to mine, refine, and consume readily exploitable supplies of fossil fuels. National Geographic - Planet Mechanics - Water Wars_Full.