{"id":3840,"date":"2025-10-17T09:13:17","date_gmt":"2025-10-17T01:13:17","guid":{"rendered":"https:\/\/ballvalves.tw\/?post_type=product&p=3840"},"modified":"2026-07-15T13:06:51","modified_gmt":"2026-07-15T05:06:51","slug":"3-valvulas-de-bola-para-soldadura-a-tope","status":"publish","type":"product","link":"https:\/\/ballvalves.tw\/es\/product\/3pcs-butt-weld-ball-valve\/","title":{"rendered":"V\u00e1lvula de bola para soldadura a tope \u2014 Extremos alargados, de 3 piezas, acero 316, 1000 WOG, paso total"},"content":{"rendered":"
PDF<\/span>V-3A-L2<\/span>Soldadura a tope extendida \u00b7 Hoja de dimensiones<\/span>Descargar \u2193<\/span><\/a><\/div>\n

Descripci\u00f3n del producto<\/h2>\n

A v\u00e1lvula de bola con soldadura a tope<\/strong> in 316 stainless steel, three-piece body, 1000 WOG<\/strong>, full port, 3\/8\u2033 to 4\u2033. The weld ends are extended<\/strong> \u2014 noticeably longer than a standard butt weld end \u2014 and that is the entire point of this valve.<\/p>\n

Read the two sections below before you order.<\/strong> One tells you why the ends are long. The other tells you what pipe this valve fits, and what pipe it does not.<\/p>\n

Why the Weld Ends Are Long<\/h2>\n

A ball valve seals on PTFE. PTFE begins to degrade well below the temperature of a weld pool.<\/p>\n

On a standard butt weld valve, the weld sits close to the body \u2014 and the heat travels down the metal into the seats. That is why people weld a valve in, pressure-test the line, and find the valve leaking. The seals were cooked during installation, before the valve ever saw a drop of product.<\/p>\n

The extended ends move the weld away from the seats.<\/strong> The extra length is the heat sink. You weld the valve in fully assembled \u2014 no dismantling, no removing the ball and seats, no reassembling it in a trench.<\/p>\n

And because the body is three-piece, you can still take it apart afterwards: undo the body bolts, lift the centre section out, replace the seats, put it back. The ends stay welded in the line.<\/strong> Nothing gets cut out.<\/p>\n

What Pipe Does It Fit? (Read This)<\/h2>\n

We would rather lose the order than have you weld this valve into the wrong pipe.<\/p>\n

\n\n\n\n\n\n\n\n\n
 <\/th>\nEsta v\u00e1lvula<\/th>\n<\/tr>\n<\/thead>\n
Pipe standard<\/strong><\/td>\nJIS<\/strong> pipe dimensions<\/td>\n<\/tr>\n
Wall thickness<\/strong><\/td>\nSchedule 5S only.<\/strong> We do not make it in other schedules.<\/td>\n<\/tr>\n
It fits<\/strong><\/td>\nJIS Sch 5S thin-wall stainless pipe<\/td>\n<\/tr>\n
It does not fit<\/strong><\/td>\nSchedule 40 or heavier pipe, without machining a transition. The wall thickness will not match and the bore will step at the weld.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u2190 Desliza el dedo por la tabla para ver todas las columnas \u2192<\/p>\n

If you are running Schedule 40 pipe, this is the wrong valve and we will tell you so.<\/strong> Send us the pipe spec \u2014 standard, size and schedule \u2014 before you order, and we will confirm whether this valve mates with it. That one email is cheaper than a valve you cannot use.<\/p>\n

Dimensiones<\/h2>\n
\n\"Extended
The letters match the columns in the table below. Numbers \u2460\u2013\u2470 match the material list further down. Unit: mm.<\/figcaption><\/figure>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Talla<\/th>\n\u00d8 d
bore<\/span><\/th>\n		L
face to face<\/span><\/th>\n		H
height<\/span><\/th>\n		T
wall thk<\/span><\/th>\n		\u00d8 D
pipe O.D.<\/span><\/th>\n		D1
lever<\/span><\/th>\n<\/tr>\n<\/thead>\n
3\/8\u2033<\/strong><\/td>\n12.5<\/td>\n160<\/td>\n57.2<\/td>\n1.2<\/td>\n17.2<\/td>\n105<\/td>\n<\/tr>\n
1\/2\u2033<\/strong><\/td>\n15.0<\/td>\n180<\/td>\n59.1<\/td>\n1.65<\/td>\n21.7<\/td>\n105<\/td>\n<\/tr>\n
3\/4\u2033<\/strong><\/td>\n20.0<\/td>\n180<\/td>\n62.55<\/td>\n1.65<\/td>\n27.2<\/td>\n105<\/td>\n<\/tr>\n
1\u2033<\/strong><\/td>\n25.0<\/td>\n192<\/td>\n70.7<\/td>\n1.65<\/td>\n34.0<\/td>\n128<\/td>\n<\/tr>\n
1-1\/4\u2033<\/strong><\/td>\n32.0<\/td>\n205<\/td>\n76.2<\/td>\n1.65<\/td>\n42.7<\/td>\n128<\/td>\n<\/tr>\n
1-1\/2\u2033<\/strong><\/td>\n40.0<\/td>\n230<\/td>\n89.1<\/td>\n1.65<\/td>\n48.7<\/td>\n154<\/td>\n<\/tr>\n
2\u2033<\/strong><\/td>\n50.0<\/td>\n243<\/td>\n98.15<\/td>\n1.65<\/td>\n60.5<\/td>\n194<\/td>\n<\/tr>\n
2-1\/2\u2033<\/strong><\/td>\n65.0<\/td>\n294<\/td>\n110.6<\/td>\n2.1<\/td>\n76.1<\/td>\n194<\/td>\n<\/tr>\n
3\u2033<\/strong><\/td>\n80.0<\/td>\n320<\/td>\n124.0<\/td>\n2.1<\/td>\n89.0<\/td>\n276<\/td>\n<\/tr>\n
4\u2033<\/strong><\/td>\n100.0<\/td>\n357<\/td>\n168.5<\/td>\n2.1<\/td>\n114.3<\/td>\n335<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u2190 Desliza el dedo por la tabla para ver todas las columnas \u2192<\/p>\n

\u00d8D is the pipe outside diameter. T is the wall thickness.<\/strong> Those are the two numbers a welder actually needs, and most valve makers do not publish them. Check them against your pipe before you order.<\/p>\n

Qu\u00e9 contiene \u2014 Lista completa de materiales<\/h2>\n

All seventeen parts, and what each one is made of.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
No.<\/th>\nParte<\/th>\nMaterial<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nCuerpo<\/strong><\/td>\nASTM A351 Gr. CF8M (316)<\/td>\n<\/tr>\n
2<\/td>\nGorra<\/strong><\/td>\nASTM A351 Gr. CF8M (316)<\/td>\n<\/tr>\n
3<\/td>\nBal\u00f3n<\/strong><\/td>\nASTM A351 Gr. CF8M (316)<\/td>\n<\/tr>\n
4<\/td>\nEnd seals<\/strong><\/td>\nPTFE<\/td>\n<\/tr>\n
5<\/td>\nBolts<\/td>\nASTM A193 Gr. B8<\/td>\n<\/tr>\n
6<\/td>\nJunta<\/td>\nPTFE<\/td>\n<\/tr>\n
7<\/td>\nThrust washer<\/td>\nPTFE<\/td>\n<\/tr>\n
8<\/td>\nV\u00e1stago<\/strong><\/td>\nASTM A276, grado 316<\/td>\n<\/tr>\n
9<\/td>\nEmbalaje<\/td>\nPTFE<\/td>\n<\/tr>\n
10<\/td>\nGl\u00e1ndula<\/td>\nSS304<\/td>\n<\/tr>\n
11<\/td>\nBevel washer<\/td>\nSS304<\/td>\n<\/tr>\n
12<\/td>\nArandela el\u00e1stica<\/td>\nSS304<\/td>\n<\/tr>\n
13<\/td>\nPlaca de bloqueo<\/td>\nSS304<\/td>\n<\/tr>\n
14<\/td>\nAsa<\/td>\nSS304<\/td>\n<\/tr>\n
15<\/td>\nHandle sleeve<\/td>\nVinyl grip<\/td>\n<\/tr>\n
16<\/td>\nBolt washer<\/td>\nSS304<\/td>\n<\/tr>\n
17<\/td>\nBolt nuts<\/td>\nASTM A194 Gr. 8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u2190 Desliza el dedo por la tabla para ver todas las columnas \u2192<\/p>\n

Especificaciones<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Art\u00edculo<\/th>\nEspecificaciones<\/th>\n<\/tr>\n<\/thead>\n
Tipo de v\u00e1lvula<\/td>\nThree-piece ball valve, extended butt weld ends<\/strong><\/td>\n<\/tr>\n
Presi\u00f3n nominal<\/td>\n1000 WOG<\/strong><\/td>\n<\/tr>\n
Body, cap & ball<\/td>\nAcero inoxidable 316 (ASTM A351 CF8M)<\/td>\n<\/tr>\n
V\u00e1stago<\/td>\nASTM A276, grado 316<\/td>\n<\/tr>\n
Asientos y juntas<\/td>\nPTFE<\/td>\n<\/tr>\n
Puerto<\/td>\nPuerto completo<\/strong><\/td>\n<\/tr>\n
Gama de tallas<\/td>\n3\/8\u2033 \u2013 4\u2033<\/strong><\/td>\n<\/tr>\n
Pipe standard<\/td>\nJIS<\/strong><\/td>\n<\/tr>\n
Wall thickness<\/td>\nSchedule 5S<\/strong> (we do not make other schedules)<\/td>\n<\/tr>\n
Funcionamiento<\/td>\nManual lever, lockable<\/td>\n<\/tr>\n
Pa\u00eds de origen<\/td>\nFabricado en Taiw\u00e1n<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Not Sure Butt Weld Is What You Want?<\/h2>\n

Welding a valve into a line is permanent. If you would rather be able to unscrew it, or if your pipe is not JIS Sch 5S, look at these instead:<\/p>\n