Tubing
Tech specs, prices, quantities, and recommended suppliers for the tubing in FarmBot Genesis
| Qty. | Component | $/Unit | Subtotal |
|---|---|---|---|
| 3 | Liquid/Gas Tubes | $4.74 | $14.22 |
| 3 | Barbs | $5.60 | $16.80 |
| 1 | Barbed Adapter | $1.62 | $1.62 |
| 1 | Garden Hose Adapter | $4.81 | $4.81 |
| 3 | O-rings | $0.27 | $0.81 |
| 4 | Grommets | $0.07 | $0.28 |
| 1 | Pressure Regulator | $5.27 | $5.27 |
| 17 | TOTALS | $43.36 |
Liquid/Gas Tubes
These ultra flexible tubes carry liquids and gases to and from the UTM including water and vacuum air.
| Length Needed | 6m |
| Material | Masterkleer PVC |
| Color | Clear |
| Flexibility | Very Flexible |
| Compatible Tube Fittings | Barbs |
| Inner Diameter | 1/4” |
| Outer Diameter | 3/8” |
| Wall Thickness | 1/16” |
| Bend Radius | 1” Minimum |
| Max Pressure | 35 psi at 73° F |
| Temperature Range | -45° to 165° F |
| Recommended Supplier | McMaster Carr - Part Number 5233K56 |
| Price | $0.79/m ($4.74 per 6m length) |
| Quantity Needed | 3 tubes, each 6m long |
Barbs
These stainless steel barbs screw into the UTM’s three liquid/gas ports and accept the three liquid/gas lines coming from the z-axis cable carrier.
| For Tube ID | 1/4” |
| Threads | 10-32 UNF Straight Threads |
| Hex Size | 5/16” |
| Overall Length | 25/32” |
| Temperature Range | –40° to 1200° F |
| Maximum Pressure | 500 psi @ 72° F |
| RoHS | Compliant |
| Gasket? | Yes |
| Material | Type 303 Stainless Steel |
| Recommended Supplier | McMaster Carr - Part Number 4406T14 |
| Price | $5.60 each |
| Quantity Needed | 3 |
Barbed Adapter
This adapter threads onto the solenoid valve and is connected to the water tube leading to the UTM.
| Material | Nylon |
| For Tube ID | 1/4” |
| Threads | 3/4” NPSM (National Pipe Straight Mechanical) connection, which is compatible with NPT threads |
| Hex Size | 1.25” |
| Overall Length | 1.656” |
| Recommended Supplier | McMaster Carr - Part Number 5372K221 |
| Price | $1.62 |
| Quantity Needed | 1 |
Garden Hose Adapter
This adapter connects standard US garden hoses to the solenoid valve.
| Material | Brass |
| Threads | 3/4” Female GHT (Garden Hose Thread) 3/4” Female NPT (National Pipe Thread) |
| Swivel Type | Swivels until tightened |
| Seal | Rubber Gasket |
| Maximum Temperature | 195° F |
| RoHS | Not compliant |
| Recommended Suppliers | Zoro McMaster Carr - Part Number 70815t44 |
| Price | $4.81 |
| Quantity Needed | 1 |
O-rings
These O-rings fit onto the UTM’s liquid/gas ports and create a solid seal when tools are mounted.
| Material | Buna-N |
| Durometer | A70 (Medium) |
| Outer Diameter | 10.5mm |
| Inner Diameter | 7.5mm |
| Thickness | 1.5mm |
| Temperature Range | -30° to 212° F |
| Color | Black |
| Recommended Supplier | McMaster Carr - Part Number 1171n145 |
| Price | $0.27 |
| Quantity Needed | 3 |
Grommets
These grommets fit onto the UTM cover and allow the liquid/gas tubes and the UTM cable to pass into the UTM assembly while keeping water and dust out.
| Material | SBR Rubber |
| Durometer | 45A-65A |
| Temperature Range | –30° to 175° F |
| Panel Hole Diameter (A) | 7/16” |
| Panel Thickness (B) | 3/32” |
| ID (C) | 3/8” |
| OD (D) | 5/8” |
| Overall Thickness (E) | 9/32” |
| Color | Black |
| Recommended Supplier | McMaster Carr - Part Number 9600k33 |
| Price | $0.07 |
| Quantity Needed | 4 |
Pressure Regulator
This pressure regulator reduces the pressure from a municipal water supply down to 25 PSI (172 kpa, 1.72 bar) so that FarmBot can more easily control the amount of water it disperses.
| Material | UV resistant plastic |
| Inlet | 3/4 in. FHT (female hose thread) |
| Outlet | 3/4 in. MHT (male hose thread) |
| Color | Black |
| Length | 6 inches (152.4mm) |
| Outer Diameter | 1.25 inches (31.75mm) |
| Outlet Pressure | 25 PSI (172 kpa, 1.72 bar) |
| Max Input Pressure | 100 PSI (688 kpa, 6.88 bar) |
| Recommended Supplier | Home Depot |
| Price | $5.27 |
| Quantity Needed | 1 |