TUPY union brass taper seat, NPT threaded — high-pressure range for industrial Class 300 piping.
| Figure number | 2070 |
| Size range | 1/4" – 4" |
| Finish | Galvanised and black |
| Thread | NPT |
| Standard | ASME B16.39 (union; threads to ASME B1.20.1) |
| Maximum working pressure | Class 300 NPT — varies by size and temperature; see TUPY chart |
| Material | Black malleable iron — ASTM A197 / ABNT NBR 6590 |
| Applications | Industrial fluid and gas lines; confirm medium, figure and approvals for the selected duty |
The size range summarises this figure's table and does not guarantee stock in every size. Check the product-family catalogue and the required figure and size approvals before selection.
TUPY's NPT family reference values. Select the correct size and service temperature; a family maximum is not the rating of every size. Confirm medium, figure and project requirements before use.
| Temperature (°C) | Union ¼–4 in (psi) |
|---|---|
| -29 to 66 | 600 |
| 93 | 550 |
| 121 | 505 |
| 149 | 460 |
| 177 | 415 |
| 204 | 370 |
| 232 | 325 |
| 260 | 280 |
| 288 | 230 |
Source: TUPY technical catalogue. Verify the current revision. TUPY NPT catalogue
Approval depends on the figure, size, finish and application. See TUPY’s NPT family information and request the current figure- and size-specific approval document before specifying this product.
The dimension letters follow the technical drawing above. Weights are per single fitting, in kilograms.
| Nominal diameter | Dimensions (mm) | Weight (kg) | ||||
|---|---|---|---|---|---|---|
| inch | mm | C | S | S1 | Catalogue weight (kg) | |
| 1/4" | 8 | 39.5 | 34 | 19 | 0.144 | |
| 3/8" | 10 | 43.5 | 38 | 23 | 0.204 | |
| 1/2" | 15 | 46 | 44.5 | 27 | 0.281 | |
| 3/4" | 20 | 54 | 54.5 | 34 | 0.523 | |
| 1" | 25 | 58.5 | 63 | 41 | 0.650 | |
| 1.1/4" | 32 | 67.5 | 76.5 | 50 | 0.941 | |
| 1.1/2" | 40 | 72.5 | 83.5 | 57 | 1.375 | |
| 2" | 50 | 82 | 100.5 | 70 | 1.897 | |
| 2.1/2" | 65 | 84.5 | 120 | 85 | 3.142 | |
| 3" | 80 | 104 | 136.5 | 104 | 4.471 | |
| 4" | 100 | 113.5 | 178 | 132 | 8.481 | |
Source: TUPY catalogue dimensional data for this figure; verify the current revision.
Figure 2070 source: Official TUPY dimensions and weights
Need pricing for this fitting?
Send us the figures and sizes you need and our Dubai office will come back with a quotation, stock position and lead time.
TUPY malleable cast iron union brass taper seat with NPT threads, high-pressure class. For industrial Class 300 piping applications across the Gulf and wider Middle East. Size range 1/4" – 4". Pressure class 300 LB NPT. Made to ASME B16.39; NPT threads to ASME B1.20.1. Available galvanised or black.
The TUPY Brazil Union Brass Taper Seat — NPT High Pressure is made in 11 sizes, from 1/4" to 4". The full list of sizes, with the dimensions in millimetres and the weight of each piece, is in the dimensions and weights table on this page.
The weight depends on the size: the 1" size, for example, weighs 0.650 kg. The weights of every size are taken from the official TUPY catalogue and are listed in the table on this page, so they can be used to work out shipping weight and freight cost.
This is a TUPY NPT fitting with tapered pipe threads to ASME B1.20.1. NPT and BSP threads are not interchangeable; confirm the mating thread and sealing method for the installation.
The working pressure depends on its nominal size, service temperature and class. A family maximum is not a rating for every size. Check the TUPY NPT pressure-temperature chart and the requirements for this figure before selection.
The product record lists ASME B16.39 (union; threads to ASME B1.20.1). Confirm the figure-specific catalogue data and any required approval for the project; certification of a product family does not establish approval for every individual figure.
Where dimensions permit, genuine TUPY fittings carry cast markings such as the factory mark and nominal size. Check the figure-specific catalogue and packaging as well. The threads are clean and free of burrs, and the galvanised coating is even. The surest check is to weigh the piece and compare it with the weight table on this page; counterfeit pieces usually come out lighter than the official catalogue weight.
Use the request a quote page at /request-a-quote and tell us the figure number (2070), the sizes and the quantities you need. Our Dubai office will come back with a quotation, the current stock position and a lead time. Amini Building Materials Trading L.L.C is the exclusive agent of TUPY S.A. in the Middle East and supplies the region from Dubai.
