Válvulas de globo · Válvulas de globo de acero forjado
Válvulas de globo forjadas compactas
La válvula de globo forjada compacta es la ejecución de pequeño paso y alta presión de la familia de globo: un cuerpo forjado construido según API 602, cubriendo NPS 1/2 a 2 a ASME Class 150 hasta 4500 en patrones T, Y y de ángulo. La ejecución abarca cuerpos de acero al carbono, acero inoxidable, acero aleado, inoxidable dúplex, base níquel y aleación de titanio, con extremos RF, BW, RTJ, SW y NPT y accionamiento manual, neumático, eléctrico o hidráulico.
Parte de la Válvulas de globo de acero forjado familia
Última actualización: 2026-11
Especificaciones
| Design standards | API 602 |
|---|---|
| Nominal valve connection size | NPS 1/2"~2" (DN15~DN50) |
| Pressure Rating | ASME CLASS 150~4500 (PN16~PN760) |
| Valve body material | Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel, Nickel base, Titanium alloy steel |
| End connection types | RF, BW, RTJ, SW, NPT |
| Operation / closure mode | Manual, Pneumatic, Electric, Hydraulic |
| body material grades | ASTM A105N, A350 Gr. LF2, A182 Gr. F11, A182 Gr. F22, A182 Gr. F5, A182 Gr. F304, A182 Gr. F316, A182 Gr. F304L, A182 Gr. F316L |
| approx weight | 2.0 - 40 kg per valve (size, class and bonnet execution dependent) |
| end to end standard | API 602 (threaded, socket-weld and butt-weld compact pattern); ASME B16.10 (overall-end flanged) |
| bonnet types | Bolted bonnet, Welded bonnet, Pressure seal bonnet, Y-pattern |
| Stem material | ASTM A182 F6a / A182 F304 / A182 F316 (per trim selection) |
| seat gasket | Spiral wound graphite/316L SS body-bonnet gasket; graphite packing |
| end to end class800 bolted | NPS 1/4: 79 mm | NPS 3/8: 79 mm | NPS 1/2: 79 mm | NPS 3/4: 92 mm | NPS 1: 111 mm | NPS 1-1/4: 120 mm | NPS 1-1/2: 152 mm | NPS 2: 172 mm (end-to-end length, Full port sizes) |
| bore diameter class800 bolted | NPS 1/4: 6.8 mm | NPS 3/8: 6.8 mm | NPS 1/2: 9.5 mm | NPS 3/4: 13 mm | NPS 1: 18 mm | NPS 1-1/4: 23.5 mm | NPS 1-1/2: 28.5 mm | NPS 2: 36.5 mm (bore diameter, Full port sizes) |
| end to end class800 welded | NPS 3/8: 76 mm | NPS 1/2: 76 mm | NPS 3/4: 86 mm | NPS 1: 102 mm | NPS 1-1/4: 140 mm | NPS 1-1/2: 140 mm | NPS 2: 170 mm (end-to-end length, Regular-port columns (full port one size smaller)) |
| bore diameter class800 welded | NPS 3/8: 6.5 mm | NPS 1/2: 9.5 mm | NPS 3/4: 12.7 mm | NPS 1: 17.5 mm | NPS 1-1/4: 23 mm | NPS 1-1/2: 28.6 mm | NPS 2: 36.5 mm (bore diameter, Regular-port columns) |
| weight class800 welded | NPS 3/8: 2 kg | NPS 1/2: 2 kg | NPS 3/4: 2.5 kg | NPS 1: 3.5 kg | NPS 1-1/4: 7 kg | NPS 1-1/2: 7 kg | NPS 2: 10.5 kg (approx. weight, Regular-port columns) |
| end to end class900 1500 bw | NPS 3/8: 90 mm | NPS 1/2: 90 mm | NPS 3/4: 104 mm | NPS 1: 120 mm | NPS 1-1/4: 150 mm | NPS 1-1/2: 150 mm | NPS 2: 180 mm (end-to-end length, Class 900/1500 bolted or welded bonnet (shared face-to-face)) |
| bore diameter class900 1500 bw | NPS 3/8: 8 mm | NPS 1/2: 9 mm | NPS 3/4: 12 mm | NPS 1: 15 mm | NPS 1-1/4: 21 mm | NPS 1-1/2: 27 mm | NPS 2: 32 mm (bore diameter, Class 900/1500 bolted or welded bonnet) |
| weight class900 1500 bw | NPS 3/8: 2.5 kg | NPS 1/2: 2.5 kg | NPS 3/4: 3 kg | NPS 1: 5.5 kg | NPS 1-1/4: 8.5 kg | NPS 1-1/2: 8.5 kg | NPS 2: 14.5 kg (approx. weight, Class 900/1500 bolted or welded bonnet) |
| end to end class900 1500 y pattern | NPS 3/8: 80 mm | NPS 1/2: 90 mm | NPS 3/4: 110 mm | NPS 1: 125 mm | NPS 1-1/4: 155 mm | NPS 1-1/2: 180 mm | NPS 2: 200 mm (end-to-end length, Class 900-1500 Y-pattern welded bonnet, full port) |
| bore diameter class900 1500 y pattern | NPS 3/8: 9.5 mm | NPS 1/2: 12 mm | NPS 3/4: 15 mm | NPS 1: 21 mm | NPS 1-1/4: 27 mm | NPS 1-1/2: 32 mm | NPS 2: 38 mm (bore diameter, Class 900-1500 Y-pattern welded bonnet, full port) |
| weight class900 1500 y pattern | NPS 3/8: 2.8 kg | NPS 1/2: 4 kg | NPS 3/4: 5 kg | NPS 1: 7.5 kg | NPS 1-1/4: 9 kg | NPS 1-1/2: 13 kg | NPS 2: 18 kg (approx. weight, Class 900-1500 Y-pattern welded bonnet, full port) |
| end to end class2500 welded | NPS 3/8: 120 mm | NPS 1/2: 120 mm | NPS 3/4: 140 mm | NPS 1: 186 mm | NPS 1-1/4: 232 mm | NPS 1-1/2: 232 mm | NPS 2: 279 mm (end-to-end length, Class 2500 welded bonnet, ASME B16.34) |
| bore diameter class2500 welded | NPS 3/8: 8 mm | NPS 1/2: 9 mm | NPS 3/4: 12 mm | NPS 1: 15 mm | NPS 1-1/4: 19 mm | NPS 1-1/2: 27 mm | NPS 2: 27 mm (bore diameter, Class 2500 welded bonnet) |
| weight class2500 welded | NPS 3/8: 7.5 kg | NPS 1/2: 7.5 kg | NPS 3/4: 9 kg | NPS 1: 15.5 kg | NPS 1-1/4: 26 kg | NPS 1-1/2: 26 kg | NPS 2: 36 kg (approx. weight, Class 2500 welded bonnet) |
| end to end class2500 pressure seal | NPS 3/8: 120 mm | NPS 1/2: 120 mm | NPS 3/4: 140 mm | NPS 1: 186 mm | NPS 1-1/4: 232 mm | NPS 1-1/2: 232 mm | NPS 2: 279 mm (end-to-end length, Class 2500 pressure seal bonnet, ASME B16.34) |
| bore diameter class2500 pressure seal | NPS 3/8: 8 mm | NPS 1/2: 9 mm | NPS 3/4: 12 mm | NPS 1: 15 mm | NPS 1-1/4: 19 mm | NPS 1-1/2: 27 mm | NPS 2: 27 mm (bore diameter, Class 2500 pressure seal bonnet) |
| weight class2500 pressure seal | NPS 3/8: 7.5 kg | NPS 1/2: 7.5 kg | NPS 3/4: 12 kg | NPS 1: 19.5 kg | NPS 1-1/4: 28 kg | NPS 1-1/2: 28 kg | NPS 2: 40 kg (approx. weight, Class 2500 pressure seal bonnet) |
| end to end class900 1500 y pressure seal | NPS 1/2: 140 mm | NPS 3/4: 140 mm | NPS 1: 140 mm | NPS 1-1/2: 178 mm | NPS 2: 216 mm (end-to-end length, Class 900-1500 Y-pattern pressure seal bonnet, full port) |
| bore diameter class900 1500 y pressure seal | NPS 1/2: 10 mm | NPS 3/4: 15 mm | NPS 1: 21 mm | NPS 1-1/2: 32 mm | NPS 2: 38 mm (bore diameter, Class 900-1500 Y-pattern pressure seal bonnet, full port) |
| weight class900 1500 y pressure seal | NPS 1/2: 9 kg | NPS 3/4: 9.5 kg | NPS 1: 11.5 kg | NPS 1-1/2: 16.5 kg | NPS 2: 30 kg (approx. weight, Class 900-1500 Y-pattern pressure seal bonnet, full port) |
| end to end class900 1500 flanged | NPS 1/2: 216 mm | NPS 3/4: 229 mm | NPS 1: 254 mm | NPS 1-1/2: 305 mm | NPS 2: 368 mm (end-to-end length, Class 900/1500 overall-end flange, bolted bonnet, ASME B16.10/B16.5) |
| bore diameter class900 1500 flanged | NPS 1/2: 9 mm | NPS 3/4: 12 mm | NPS 1: 15 mm | NPS 1-1/2: 27 mm | NPS 2: 32 mm (bore diameter, Class 900/1500 overall-end flange, bolted bonnet) |
| weight class900 1500 flanged | NPS 1/2: 7 kg | NPS 3/4: 9 kg | NPS 1: 14.5 kg | NPS 1-1/2: 22 kg | NPS 2: 40 kg (approx. weight, Class 900/1500 overall-end flange, bolted bonnet) |
| end to end class150 flanged | NPS 1/2: 108 mm | NPS 3/4: 117 mm | NPS 1: 127 mm | NPS 1-1/4: 140 mm | NPS 1-1/2: 165 mm | NPS 2: 203 mm (end-to-end length, Class 150 overall-end flange, bolted bonnet, ASME B16.10) |
| end to end class300 flanged | NPS 1/2: 152 mm | NPS 3/4: 178 mm | NPS 1: 203 mm | NPS 1-1/4: not offered | NPS 1-1/2: 229 mm | NPS 2: 267 mm (end-to-end length, Class 300 overall-end flange) |
| end to end class600 flanged | NPS 1/2: 165 mm | NPS 3/4: 190 mm | NPS 1: 216 mm | NPS 1-1/4: not offered | NPS 1-1/2: 241 mm | NPS 2: 292 mm (end-to-end length, Class 600 overall-end flange) |
| bore diameter class150 600 flanged | NPS 1/2: 9.5 mm | NPS 3/4: 13 mm | NPS 1: 18 mm | NPS 1-1/4: 23.5 mm | NPS 1-1/2: 28.5 mm | NPS 2: 36.5 mm (bore diameter, Class 150-300-600 overall-end flange) |
| end to end class2500 y pattern welded | NPS 1/2: 110 mm | NPS 3/4: 125 mm | NPS 1: 180 mm | NPS 1-1/2: 200 mm | NPS 2: 230 mm (end-to-end length, Class 2500 Y-pattern welded bonnet, full port, ASME B16.34; NPS 3/8 not offered (printed dash)) |
| bore diameter class2500 y pattern welded | NPS 1/2: 12 mm | NPS 3/4: 15 mm | NPS 1: 21 mm | NPS 1-1/2: 28 mm | NPS 2: 35 mm (bore diameter, Class 2500 Y-pattern welded bonnet, full port; NPS 3/8 not offered (printed dash)) |
| weight class2500 y pattern welded | NPS 1/2: 5.5 kg | NPS 3/4: 7.5 kg | NPS 1: 13.5 kg | NPS 1-1/2: 18.5 kg | NPS 2: 25 kg (approx. weight, Class 2500 Y-pattern welded bonnet, full port; NPS 3/8 not offered (printed dash)) |
| center to top open class800 bolted | NPS 1/4: 161 mm | NPS 3/8: 161 mm | NPS 1/2: 167 mm | NPS 3/4: 167 mm | NPS 1: 196 mm | NPS 1-1/4: 236 mm | NPS 1-1/2: 252 mm | NPS 2: 282 mm (center-to-top (open) height, Full port sizes) |
| center to top open class150 600 flanged | NPS 1/2: 167 mm | NPS 3/4: 167 mm | NPS 1: 196 mm | NPS 1-1/4: 236 mm | NPS 1-1/2: 252 mm | NPS 2: 282 mm (center-to-top (open) height, Class 150-300-600 overall-end flange) |
| center to top open class800 welded | NPS 3/8: 150.8 mm | NPS 1/2: 150.8 mm | NPS 3/4: 166.8 mm | NPS 1: 206.3 mm | NPS 1-1/4: 270.3 mm | NPS 1-1/2: 281.3 mm | NPS 2: 350.3 mm (center-to-top (open) height, Regular-port columns (full port one size smaller) |
| center to top open class900 1500 bw bolted | NPS 3/8: 165.7 mm | NPS 1/2: 165.7 mm | NPS 3/4: 191.8 mm | NPS 1: 226.8 mm | NPS 1-1/4: 278.3 mm | NPS 1-1/2: 280.3 mm | NPS 2: 312.3 mm (center-to-top (open) height, Class 900/1500 bolted or welded bonnet (shared face-to-face, bolted bonnet) |
| center to top open class900 1500 bw welded | NPS 3/8: 179.7 mm | NPS 1/2: 179.7 mm | NPS 3/4: 207.3 mm | NPS 1: 239.7 mm | NPS 1-1/4: 281.8 mm | NPS 1-1/2: 285.8 mm | NPS 2: 316.3 mm (center-to-top (open) height, Class 900/1500 bolted or welded bonnet (shared face-to-face, welded bonnet) |
| center to top open class2500 welded | NPS 3/8: 205 mm | NPS 1/2: 205 mm | NPS 3/4: 260 mm | NPS 1: 302 mm | NPS 1-1/4: 340 mm | NPS 1-1/2: 340 mm | NPS 2: 390 mm (center-to-top (open) height, Class 2500 welded bonnet, ASME B16.34) |
| center to top open class2500 pressure seal | NPS 3/8: 295.3 mm | NPS 1/2: 295.3 mm | NPS 3/4: 346.3 mm | NPS 1: 389.3 mm | NPS 1-1/4: 430.4 mm | NPS 1-1/2: 430.4 mm | NPS 2: 478.8 mm (center-to-top (open) height, Class 2500 pressure seal bonnet, ASME B16.34) |
| center to top open class900 1500 flanged | NPS 1/2: 165.7 mm | NPS 3/4: 191.8 mm | NPS 1: 226.8 mm | NPS 1-1/2: 280.3 mm | NPS 2: 312.3 mm (center-to-top (open) height, Class 900/1500 overall-end flange, bolted bonnet, ASME B16.10/B16.5) |
| center to top open class900 1500 y pattern | NPS 3/8: 170 mm | NPS 1/2: 200 mm | NPS 3/4: 238 mm | NPS 1: 272 mm | NPS 1-1/4: 308 mm | NPS 1-1/2: 326 mm | NPS 2: 376 mm (center-to-top (open) height, Class 900-1500 Y-pattern welded bonnet, full port) |
| center to top open class2500 y pattern welded | NPS 1/2: 239.6 mm | NPS 3/4: 274.1 mm | NPS 1: 325.5 mm | NPS 1-1/2: 372.9 mm | NPS 2: 446.2 mm (center-to-top (open) height, Class 2500 Y-pattern welded bonnet, full port, ASME B16.34; NPS 3/8 not offered (printed dash; NPS 3/8 not offered (printed dash)) |
| center to top open class900 1500 y pressure seal | NPS 1/2: 350 mm | NPS 3/4: 350 mm | NPS 1: 350 mm | NPS 1-1/2: 450 mm | NPS 2: 450 mm (center-to-top (open) height, Class 900-1500 Y-pattern pressure seal bonnet, full port) |
| end to end class800 y pattern welded | NPS 3/8: 80 mm | NPS 1/2: 80 mm | NPS 3/4: 90 mm | NPS 1: 110 mm | NPS 1-1/4: 125 mm | NPS 1-1/2: 155 mm | NPS 2: 180 mm (end-to-end length, Class 800 Y-pattern welded bonnet, full port, API 602, threaded and socket weld ends) |
| bore diameter class800 y pattern welded | NPS 3/8: 9.5 mm | NPS 1/2: 12 mm | NPS 3/4: 17 mm | NPS 1: 23 mm | NPS 1-1/4: 28 mm | NPS 1-1/2: 36 mm | NPS 2: 44 mm (bore diameter, Class 800 Y-pattern welded bonnet, full port, API 602, threaded and socket weld ends) |
| weight class800 y pattern welded | NPS 3/8: 2.0 kg | NPS 1/2: 2.5 kg | NPS 3/4: 3.5 kg | NPS 1: 5.0 kg | NPS 1-1/4: 6.5 kg | NPS 1-1/2: 8.0 kg | NPS 2: 12.5 kg (approx. weight, Class 800 Y-pattern welded bonnet, full port, API 602, threaded and socket weld ends) |
| center to top open class800 y pattern welded | NPS 3/8: 170 mm | NPS 1/2: 170 mm | NPS 3/4: 200 mm | NPS 1: 242 mm | NPS 1-1/4: 276 mm | NPS 1-1/2: 295 mm | NPS 2: 327 mm (center-to-top (open) height, Class 800 Y-pattern welded bonnet, full port, API 602, threaded and socket weld ends) |
| end to end class2500 y pressure seal | NPS 1/2: 140 mm | NPS 3/4: 178 mm | NPS 1: 216 mm | NPS 1-1/2: 216 mm | NPS 2: 279 mm (end-to-end length, Class 2500 Y-pattern pressure seal bonnet, full port, ASME B16.34) |
| bore diameter class2500 y pressure seal | NPS 1/2: 12 mm | NPS 3/4: 15 mm | NPS 1: 21 mm | NPS 1-1/2: 28 mm | NPS 2: 38 mm (bore diameter, Class 2500 Y-pattern pressure seal bonnet, full port, ASME B16.34) |
| weight class2500 y pressure seal | NPS 1/2: 10 kg | NPS 3/4: 13 kg | NPS 1: 15 kg | NPS 1-1/2: 25 kg | NPS 2: 42.5 kg (approx. weight, Class 2500 Y-pattern pressure seal bonnet, full port, ASME B16.34) |
| center to top open class2500 y pressure seal | NPS 1/2: 380 mm | NPS 3/4: 405 mm | NPS 1: 430 mm | NPS 1-1/2: 480 mm | NPS 2: 520 mm (center-to-top (open) height, Class 2500 Y-pattern pressure seal bonnet, full port, ASME B16.34) |
| handwheel class150 600 flanged | NPS 1/2: 100 mm | NPS 3/4: 100 mm | NPS 1: 120 mm | NPS 1-1/4: 160 mm | NPS 1-1/2: 160 mm | NPS 2: 220 mm (handwheel diameter (W), Class 150-300-600 overall-end flange) |
| handwheel class2500 pressure seal | NPS 3/8: 150 mm | NPS 1/2: 150 mm | NPS 3/4: 180 mm | NPS 1: 200 mm | NPS 1-1/4: 250 mm | NPS 1-1/2: 250 mm | NPS 2: 350 mm (handwheel diameter (W), Class 2500 pressure seal bonnet, ASME B16.34) |
| handwheel class2500 welded | NPS 3/8: 150 mm | NPS 1/2: 150 mm | NPS 3/4: 180 mm | NPS 1: 200 mm | NPS 1-1/4: 250 mm | NPS 1-1/2: 250 mm | NPS 2: 350 mm (handwheel diameter (W), Class 2500 welded bonnet, ASME B16.34) |
| handwheel class2500 y pattern welded | NPS 1/2: 150 mm | NPS 3/4: 150 mm | NPS 1: 180 mm | NPS 1-1/2: 200 mm | NPS 2: 300 mm (handwheel diameter (W), Class 2500 Y-pattern welded bonnet, full port, ASME B16.34; NPS 3/8 not offered (printed dash; NPS 3/8 not offered (printed dash); NPS 3/8 not offered (printed dash)) |
| handwheel class2500 y pressure seal | NPS 1/2: 180 mm | NPS 3/4: 200 mm | NPS 1: 250 mm | NPS 1-1/2: 350 mm | NPS 2: 350 mm (handwheel diameter (W), Class 2500 Y-pattern pressure seal bonnet, full port, ASME B16.34) |
| handwheel class800 bolted | NPS 1/4: 100 mm | NPS 3/8: 100 mm | NPS 1/2: 100 mm | NPS 3/4: 100 mm | NPS 1: 120 mm | NPS 1-1/4: 160 mm | NPS 1-1/2: 160 mm | NPS 2: 220 mm (handwheel diameter (W), Full port sizes) |
| handwheel class800 welded | NPS 3/8: 90 mm | NPS 1/2: 90 mm | NPS 3/4: 90 mm | NPS 1: 110 mm | NPS 1-1/4: 150 mm | NPS 1-1/2: 150 mm | NPS 2: 150 mm (handwheel diameter (W), Regular-port columns (full port one size smaller) |
| handwheel class800 y pattern welded | NPS 3/8: 90 mm | NPS 1/2: 90 mm | NPS 3/4: 110 mm | NPS 1: 150 mm | NPS 1-1/4: 150 mm | NPS 1-1/2: 150 mm | NPS 2: 180 mm (handwheel diameter (W), Class 800 Y-pattern welded bonnet, full port, API 602, threaded and socket weld ends) |
| handwheel class900 1500 bw | NPS 3/8: 90 mm | NPS 1/2: 90 mm | NPS 3/4: 110 mm | NPS 1: 150 mm | NPS 1-1/4: 150 mm | NPS 1-1/2: 180 mm | NPS 2: 180 mm (handwheel diameter (W), Class 900/1500 bolted or welded bonnet (shared face-to-face, bolted bonnet) |
| handwheel class900 1500 flanged | NPS 1/2: 90 mm | NPS 3/4: 110 mm | NPS 1: 150 mm | NPS 1-1/2: 180 mm | NPS 2: 180 mm (handwheel diameter (W), Class 900/1500 overall-end flange, bolted bonnet, ASME B16.10/B16.5) |
| handwheel class900 1500 y pattern | NPS 3/8: 90 mm | NPS 1/2: 110 mm | NPS 3/4: 150 mm | NPS 1: 150 mm | NPS 1-1/4: 180 mm | NPS 1-1/2: 180 mm | NPS 2: 200 mm (handwheel diameter (W), Class 900-1500 Y-pattern welded bonnet, full port) |
| handwheel class900 1500 y pressure seal | NPS 1/2: 200 mm | NPS 3/4: 200 mm | NPS 1: 200 mm | NPS 1-1/2: 250 mm | NPS 2: 300 mm (handwheel diameter (W), Class 900-1500 Y-pattern pressure seal bonnet, full port) |
Orientación de aplicación y selección
Select this execution where small-bore isolation or throttling needs the seating discipline of a globe pattern at forged-body class ratings: match the pattern to piping geometry (T for standard installations, Y for lower pressure drop, angle where the line turns 90 degrees anyway), the forging to temperature and medium, and the end connection to the plant piping standard — socket-weld and threaded ends for compact instrument-grade pipework, RF/RTJ flanges or butt-weld ends for permanent installation.
Preguntas frecuentes
What standard governs compact forged globe valves?
The execution is built to API 602, the compact forged-body valve standard, covering the small-bore globe envelope from NPS 1/2 to 2 across ASME Class 150 to 4500, in T, Y and angle patterns.
Which sizes and pressure classes does this execution cover?
NPS 1/2 to 2 (DN15 to DN50) at ASME Class 150 through 4500 (PN16 to PN760) — the full compact forged envelope, where the forged body carries class ratings a cast small-bore body cannot.
How do I choose body material and end connection?
Body forgings span carbon steel for general service, stainless and duplex stainless for corrosion, and alloy, nickel-base or titanium-alloy steel for severe service. End connections — RF flange, butt-weld, RTJ, socket-weld or NPT thread — follow the plant piping standard and the maintenance philosophy: welded ends for integrity, threaded or socket-weld ends for compact replacement.
Pedido y documentación
Documentos
Solicite con la consulta el conjunto documental que necesite — los elementos habituales para esta ejecución (certificados de material, informes de ensayo según la norma de inspección indicada, planos dimensionales) se confirman y entregan con la cotización.
Cotización
Una consulta lista para cotizar indica: medida nominal y clase de presión, preferencia de materiales del cuerpo y del asiento, conexión terminal, accionamiento, y el fluido de servicio con su temperatura. Los valores típicos de esta página son rangos de referencia; los valores vinculantes se confirman en la cotización.
Muestra y suministro
Las condiciones de suministro, cantidades pedidas y plazos se acuerdan por pedido — indique el país de destino y el calendario requerido con la consulta.
Almacenamiento y envío
Almacene las válvulas con asientos y sellos protegidos de UV, ozono y deformación, mantenga los protectores de cara terminal hasta la instalación y, en ejecuciones con asiento de elastómero o PTFE, evite el almacenamiento prolongado a la intemperie — los compuestos de asiento envejecen más rápido al sol directo y en condiciones de congelación.
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