Updated Launcher – High Pressure Components

Next on the list was upgrading the launcher with metal connectors and high pressure hose.  We upgraded the following

– replaced the gardena quick release on the abort extension hose to a male Nitto connector
– replaced the  first gardena quick release on the launcher with a Nitto Female quick release
– replaced the poly hose on the launcher with high pressure hose (290 psi)
– replaced the poly  90 degree elbow with a metal 90 degree elbow with bards

The abort extension hose was the first to be updated and now all connections are Nitto air hose connectors, the male Nitto connector was added to the end. The barbed section goes into the hose.

Nitto Male Hi Cupla Std 30PH

Added Nitto male to end of abort hose (to connect to launcher)

The brass elbow was fitted into two sections of high pressure hose, one section has a Nitto female connector to connect to the abort extension hose, the other end has a gardena quick release to connect to the rocket nozzle.

90 Degree Brass Elbow with barbed connections

This section effectively converts from air hose connectors to gardena quick release.

High Pressure converter from Nitto Air hose to Gardena connector

We have managed to find a female gardena connector that has a barbed connection on the hose side. This barbed connection goes 30mm down into the hose and ensures there is  more space for the clamp to hold the hose to the  gardena connector.  At the moment there is only about 8mm-10mm of the gardena connector down inside the hose, so there is a chance it might  fly off under high pressure.  We  ordered the barbed one in from our local irrigation supply store, so we will probably replace the one we have on the launcher prior to the next launch with the new one once it comes in.

The high pressure hose and connectors were mounted back on the movable section of the launcher, strapped to the steel rod and screwed down.

High Pressure Hose mounted back on the launcher

All the sections  were connected up for a test and no leaks.  This configuration is upgraded to the high pressure hose and connectors from the pump to the launcher, here is a picture of all the sections connected

All sections of upgraded launch system

This current launch system lets us position the abort valve 5m from the launcher and the pump another 15m back from that if required for high pressure launches and tests. We will do a high pressure test of the hoses and connectors in this configuration without a bottle to ensure the system can hold without any leaks.

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This entry was posted on Thursday, October 28th, 2010 at 11:28 pm and is filed under Development. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.


2 Responses to “Updated Launcher – High Pressure Components”

  1. Tom Says:

    I have been having difficulty finding a metal QC that will work with a plastic Gardena-style nozzle.

    Did you find the components on the web? If so, could you post a link and list the model number?

    Many thanks!

  2. todd Says:

    You can buy the standard metal gardena quick connects from most hardware stores. They come to fit the standard 9mm nozzle as well as the bigger 18mm nozzle.

    I purchased a female quick connect with a barbed end to secure to the high pressure hose. It was made by Netta in Australia. there is a pic on this page


    these seem to work very well and can be properly clamped to the high pressure hose. I purchased this from Dural Irrigation supplied here in NSW, Australia. Any Neta distributor or irrigation store should be able to order it in for you