O cotovelo de 45° macho e fêmea da TUPY Brasil (figura 121) é um cotovelo de 45° com uma rosca fêmea e uma rosca macho.
| Número de figura | 121 |
| Faixa de tamanhos | 1/2pol a 1pol |
| Acabamento | Galvanised and black |
| Rosca | BSP |
| Norma | EN 10242 / ISO 49 |
| Pressão máxima de trabalho | 25 bar |
| Material | Ferro fundido maleável |
As conexões TUPY Brasil são fabricadas e inspecionadas sob a supervisão dos organismos internacionais acima e possuem aprovações reconhecidas para uso em redes de combate a incêndio, água e gás.
As letras das dimensões seguem o desenho técnico acima. Os pesos são por conexão unitária, em quilogramas.
| Diâmetro nominal | Dimensões (mm) | Peso (kg) | Peças por caixa | ||||
|---|---|---|---|---|---|---|---|
| pol | mm | a | b | z | Galvanizada | Preta | |
| 3/8" | 10 | 20 | 25 | 10 | 0.043 | 0.041 | |
| 1/2" | 15 | 22 | 28 | 9 | 0.065 | 0.062 | 200 |
| 3/4" | 20 | 25 | 32 | 10 | 0.106 | 0.101 | 140 |
| 1" | 25 | 28 | 37 | 11 | 0.167 | 0.161 | 90 |
Fonte: catálogo oficial de conexões roscadas BSP da TUPY Brasil.
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O cotovelo de 45° M/F faz o mesmo serviço de um cotovelo M/F comum — uma ponta macho e uma ponta fêmea — exceto que a mudança de direção é de 45° em vez de 90°.
Essa combinação o torna muito útil em trechos diagonais: muda a direção da linha num ângulo suave e liga diretamente a equipamentos com bocal fêmea, sem niple intermediário.
Uma mudança de direção de 45° causa menos perda de carga que uma de 90° e deixa o escoamento menos turbulento, o que importa em linhas de recalque e trechos de alta velocidade.
O cotovelo de 45° M/F TUPY é fornecido como figura 121: ferro fundido maleável com rosca BSP conforme EN 10242 e ISO 49, nas bitolas de 1/2pol a 1pol.
The TUPY Brazil Cotovelo 45° M/F is made in 4 sizes, from 3/8" to 1". 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 0.167 kg galvanised and 0.161 kg black. 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.
TUPYBSP fittings are threaded to BSP in accordance with ISO 7-1; the male thread is tapered and the seal is made on the thread itself. BSP is not interchangeable with NPT, and screwing the two together will leak. TUPY also produces a separate NPT line, which is covered in the downloads section.
The figure 90 elbow turns the pipe run through 90° and is female at both ends. The figure 120 45° elbow is used for a gentler change of direction and a lower pressure drop. The figure 90R reducing elbow has two ends of different diameter, so it changes direction and diameter in one fitting. The figure 92 street elbow is male at one end and female at the other and screws straight into the next fitting without a socket; its 45° version is figure 121.
According to TUPY's technical catalogue, the working pressure of TUPYBSP fittings is 25 bar between −20 °C and +120 °C. It falls to 20 bar above 300 °C, and intermediate values are interpolated. The design pressure in the hydrostatic test is 100 bar for sizes up to 4 in and 64 bar for 5 in and 6 in.
The TUPY Cotovelo 45° M/F is manufactured to EN 10242 / ISO 49. TUPY malleable cast iron fittings are built to ISO 49, EN 10242 and ABNT NBR 6943, and their threads follow ISO 7-1. The factory certificates can be seen in the standards and certifications section on this page.
On the body of every genuine TUPY fitting the factory mark, the figure number and the size are raised in the casting, not etched or printed. 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 (121), 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.
