Ball Blast Gate

UPDATE Version 2

For my multi-inlet for my Blast Gate, I had to modify the connection of the housing parts. This was done in Version 2. Basically, nothing changes, as only the melt-in nuts now go into the inlets. Previously they were in the outlets. However, this was not compatible with the multi-inlet. As a result, the housings of the original version are not compatible with those of Version 2.
However, I have left the old print profiles online, as well as the individual print data. You can recognize Version 2 by the corresponding addition in the designation.

Additionally, nozzles and sockets for HT pipe DN40 have been added. The socket can also be fitted with an original HT sealing ring DN40, which is available in any hardware store. The new variants are available for both the inlet and outlet sides. However, they are only available for Version 2!

Original

I wanted tight-closing blast gates for my dust extraction system in my workshop. The available ones didn't appeal to me due to their design. Gate valves can clog over time and then no longer close properly.
The existing ball shut-offs also didn't appeal to me because they weren't properly sealed or were too large for my purpose.

So here is my iteration of a ball blast gate:
These are now sealed due to the use of O-rings as a sealing element between the ball and the housing. I used ball valves from heating technology as a model.
Since they are not designed for professional workshop dust extraction, they have a free passage of 35mm, just like most hoses of workshop vacuums.
Furthermore, just like my cyclone (link to cyclone https://makerworld.com/en/models/1201736-cyclone-separator-with-vacuum-valve#profileId-1214800), I have built them modularly regarding the connections.

Currently available on both sides: 50mm nozzle for HT pipe, 50mm socket for HT pipe, compatible with Osvac Neo M32 and Osvac Neo F32.
The HT socket is sealed with an HT sealing ring DN50, which is available in any hardware store.
The compatible adapters for Osvac Neo F32 are available in two versions. One with and one without a seal. An O-ring 39.98mm x 32.92mm x 3.53mm is used as the internal seal. ( https://www.amazon.de/30-St%C3%BCck-Dichtungsringe-Garantie-MONTERAL/dp/B0CDD53X52 ).

You can find more information about the Osvac Neo system at https://osvacneo.de.

The blast gate is also available in two variants. As a normal shut-off and as a monitored variant with Zigbee sensors. I use the Zigbee variant because it allows me to directly switch on the vacuum cleaner and also switch it off with a time delay. I implement this through my smart home system.
A separate, prepared print profile is available for both variants

In both variants, the parts marked as Inlet are fitted with the melt-in nuts.

The variant without Zigbee can also be built with normal nuts instead of melt-in nuts. For this, only the desired outlet parts are printed. However, M3x14 screws instead of M3x10 will be needed for this. Furthermore, 4 additional washers and 4 M3 nuts are required.

You will also find assembly instructions below. These are valid for both variants, with and without a Zigbee sensor. For deviations in the sensor variant, there is a separate chapter at the end of the instructions.

As always, all necessary parts are listed and some are provided with links.

BOM Normal Variant:
4x Melt-in nut M3x4.0 https://www.amazon.de/dp/B09ZHSGHXD
4x Washer M3
5x Cylindrical screw M3x10
1x Cylindrical screw M3x20
2x O-ring 45mm OD 38mm ID 3.5mm diameter https://www.amazon.de/dp/B008IBKX46

BOM Zigbee Variant:
6x Melt-in nut M3x4.0 https://www.amazon.de/dp/B09ZHSGHXD
4x Washer M3
5x Cylindrical screw M3x10
1x Cylindrical screw M3x20
2x Cylindrical screw M3x6
2x O-ring 45mm OD 38mm ID 3.5mm diameter https://www.amazon.de/dp/B008IBKX46
1x Aqara Door and Window Sensor https://www.amazon.de/dp/B07D37VDM3
1x Wired reed switch https://www.amazon.de/dp/B0BNBBXP5J
1x Magnet 6mm round x 3mm
 

Don't miss my other models for workshop dust extraction
Cyclone with vacuum valve
Osvac Neo 50 inserts for HT40
Osvac Neo 50 inserts for HT50
Adapter Osvac Neo M50 to F32

Multi-inlet for Ball Blast Gate
Wall mount HT50mm suitable for the Blast Gate