Van cửa guillotine · Van cửa guillotine thép rèn
Van cửa guillotine rèn gọn
Van cửa guillotine rèn gọn là phiên bản cỡ-nhỏ-áp-cao của họ van cửa guillotine: thân rèn chế tạo theo API 602, với thiết kế nắp bắt bu-lông và nắp gioăng áp suất, bao phủ NPS 1/2 đến 2 tại ASME Class 150 đến 4500. Trang chuẩn mực trải thân thép carbon, thép nhiệt thấp, inox, thép hợp kim, inox duplex, nền niken và hợp kim titan, với đầu RF, BW, RTJ, SW và NPT và vận hành tay, khí nén, điện hoặc thủy lực.
Thuộc Van cửa guillotine thép rèn dòng
Cập nhật lần cuối: 2026-11
Thông số
| Nominal valve connection size | NPS 1/2"~2" (DN15~DN50) |
|---|---|
| Pressure Rating | ASME CLASS 150~4500 (PN16~PN760) |
| Valve body material | Carbon steel, Low-temperature 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 |
| end to end class900 1500 pressure seal | NPS 1/2: 120 mm | NPS 3/4: 120 mm | NPS 1: 140 mm | NPS 1-1/4: 178 mm | NPS 1-1/2: 178 mm | NPS 2: 216 mm (end-to-end length, Class 900/1500 pressure seal bonnet, regular port size, full port one size smaller) |
| bore diameter class900 1500 pressure seal | NPS 1/2: 9.5 mm | NPS 3/4: 12.7 mm | NPS 1: 16 mm | NPS 1-1/4: 27 mm | NPS 1-1/2: 27 mm | NPS 2: 35 mm (bore diameter, Class 900/1500 pressure seal bonnet, regular port size, full port one size smaller) |
| weight class900 1500 pressure seal | NPS 1/2: 3.8 kg | NPS 3/4: 5.3 kg | NPS 1: 8.3 kg | NPS 1-1/4: 12.8 kg | NPS 1-1/2: 12.8 kg | NPS 2: 21.8 kg (approx. weight, Class 900/1500 pressure seal bonnet, regular port size, full port one size smaller) |
| end to end class2500 welded | NPS 1/2: 178 mm | NPS 3/4: 178 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, regular port size, full port one size smaller) |
| bore diameter class2500 welded | NPS 1/2: 9.0 mm | NPS 3/4: 12.0 mm | NPS 1: 15 mm | NPS 1-1/4: 27 mm | NPS 1-1/2: 27 mm | NPS 2: 35 mm (bore diameter, Class 2500 welded bonnet, ASME B16.34, regular port size, full port one size smaller) |
| weight class2500 welded | NPS 1/2: 8.0 kg | NPS 3/4: 8.0 kg | NPS 1: 11 kg | NPS 1-1/4: 20 kg | NPS 1-1/2: 20 kg | NPS 2: 25 kg (approx. weight, Class 2500 welded bonnet, ASME B16.34, regular port size, full port one size smaller) |
| end to end class2500 pressure seal | NPS 1/2: 178 mm | NPS 3/4: 178 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, regular port size, full port one size smaller) |
| bore diameter class2500 pressure seal | NPS 1/2: 9.0 mm | NPS 3/4: 12.0 mm | NPS 1: 15 mm | NPS 1-1/4: 27 mm | NPS 1-1/2: 27 mm | NPS 2: 35 mm (bore diameter, Class 2500 pressure seal bonnet, ASME B16.34, regular port size, full port one size smaller) |
| weight class2500 pressure seal | NPS 3/4: 10.0 kg | NPS 1: 13 kg | NPS 1-1/4: 21.8 kg | NPS 1-1/2: 21.8 kg | NPS 2: 28 kg (approx. weight, Class 2500 pressure seal bonnet, ASME B16.34; NPS 1/2 column excluded, kg/lb inconsistent in source; regular port size, full port one size smaller) |
| 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: 120 mm | NPS 2: 140 mm (end-to-end length, Class 800 bolted bonnet, full port size, threaded and socket weld ends, ASME B16.34/API 602) |
| bore diameter class800 bolted | NPS 1/4: 7.5 mm | NPS 3/8: 10 mm | NPS 1/2: 13 mm | NPS 3/4: 13 mm | NPS 1: 18 mm | NPS 1-1/4: 24 mm | NPS 1-1/2: 29 mm | NPS 2: 36.5 mm (bore diameter, Class 800 bolted bonnet, full port size, threaded and socket weld ends) |
| end to end class150 flanged | NPS 1/2: 108 mm | NPS 3/4: 117 mm | NPS 1: 127 mm | NPS 1-1/2: 165 mm | NPS 2: 178 mm (end-to-end length, Class 150 flanged, bolted bonnet, regular port, ASME B16.10) |
| end to end class300 flanged | NPS 1/2: 140 mm | NPS 3/4: 152 mm | NPS 1: 165 mm | NPS 1-1/2: 190 mm | NPS 2: 216 mm (end-to-end length, Class 300 flanged, bolted bonnet, regular port, ASME B16.10) |
| end to end class600 flanged | NPS 1/2: 165 mm | NPS 3/4: 190 mm | NPS 1: 216 mm | NPS 1-1/2: 241 mm | NPS 2: 292 mm (end-to-end length, Class 600 flanged, bolted bonnet, regular port, ASME B16.10) |
| bore diameter class150 300 600 flanged | NPS 1/2: 10 mm | NPS 3/4: 12.2 mm | NPS 1: 18 mm | NPS 1-1/2: 29 mm | NPS 2: 37 mm (bore diameter, Class 150-300-600 flanged, bolted bonnet, regular port) |
| 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: 118 mm | NPS 1-1/2: 118 mm | NPS 2: 132 mm (end-to-end length, Class 800 welded bonnet, regular port size, full port one size smaller) |
| bore diameter class800 welded | NPS 3/8: 9.5 mm | NPS 1/2: 9.5 mm | NPS 3/4: 12.7 mm | NPS 1: 17.5 mm | NPS 1-1/4: 23.8 mm | NPS 1-1/2: 28.6 mm | NPS 2: 36.5 mm (bore diameter, Class 800 welded bonnet, regular port size, full port one size smaller) |
| weight class800 welded | NPS 3/8: 1.5 kg | NPS 1/2: 1.5 kg | NPS 3/4: 2.0 kg | NPS 1: 3.0 kg | NPS 1-1/4: 4.0 kg | NPS 1-1/2: 5.5 kg | NPS 2: 7.5 kg (approx weight, Class 800 welded bonnet, regular port size, full port one size smaller) |
| end to end class900 1500 bolted or welded | NPS 3/8: 90 mm | NPS 1/2: 90 mm | NPS 3/4: 104 mm | NPS 1: 120 mm | NPS 1-1/4: 130 mm | NPS 1-1/2: 130 mm | NPS 2: 150 mm (end-to-end length, Class 900/1500 bolted or welded bonnet, regular port size, full port one size smaller) |
| bore diameter class900 1500 bolted or welded | NPS 3/8: 6.5 mm | NPS 3/4: 12.7 mm | NPS 1: 16 mm | NPS 1-1/4: 22.5 mm | NPS 1-1/2: 27 mm | NPS 2: 35 mm (bore diameter, Class 900/1500 bolted or welded bonnet, regular port size, full port one size smaller; NPS 1/2 (regular port) omitted - printed mm/in pair inconsistent in source) |
| weight class900 1500 bolted or welded | NPS 3/8: 2.5 kg | NPS 1/2: 2.5 kg | NPS 3/4: 3.5 kg | NPS 1: 5.5 kg | NPS 1-1/4: 8.0 kg | NPS 1-1/2: 8.5 kg | NPS 2: 14.5 kg (approx weight, Class 900/1500 bolted or welded bonnet, regular port size, full port one size smaller) |
| center to top open class800 bolted | NPS 1/4: 157 mm | NPS 3/8: 157 mm | NPS 1/2: 157 mm | NPS 3/4: 157 mm | NPS 1: 185 mm | NPS 1-1/4: 226 mm | NPS 1-1/2: 241 mm | NPS 2: 273 mm (center-to-top (open) height, Class 800 bolted bonnet, full port size, threaded and socket weld ends, ASME B16.34/API 602) |
| center to top open class150 300 600 flanged | NPS 1/2: 157 mm | NPS 3/4: 157 mm | NPS 1: 185 mm | NPS 1-1/2: 241 mm | NPS 2: 273 mm (center-to-top (open) height, Class 150-300-600 flanged, bolted bonnet, regular port) |
| center to top open class800 welded | NPS 3/8: 157 mm | NPS 1/2: 157 mm | NPS 3/4: 165 mm | NPS 1: 192 mm | NPS 1-1/4: 272 mm | NPS 1-1/2: 277 mm | NPS 2: 283 mm (center-to-top (open) height, Class 800 welded bonnet, regular port size, full port one size smaller) |
| center to top open class900 1500 bolted or welded bolted | NPS 3/8: 163 mm | NPS 1/2: 163 mm | NPS 3/4: 190 mm | NPS 1: 225 mm | NPS 1-1/4: 263 mm | NPS 1-1/2: 264 mm | NPS 2: 319 mm (center-to-top (open) height, Class 900/1500 bolted or welded bonnet, regular port size, full port one size smaller, bolted bonnet) |
| center to top open class900 1500 bolted or welded welded | NPS 3/8: 177 mm | NPS 1/2: 177 mm | NPS 3/4: 206 mm | NPS 1: 240 mm | NPS 1-1/4: 271 mm | NPS 1-1/2: 276 mm | NPS 2: 325 mm (center-to-top (open) height, Class 900/1500 bolted or welded bonnet, regular port size, full port one size smaller, welded bonnet) |
| center to top open class900 1500 pressure seal | NPS 1/2: 230 mm | NPS 3/4: 294 mm | NPS 1: 337.5 mm | NPS 1-1/4: 396.5 mm | NPS 1-1/2: 396.5 mm | NPS 2: 449 mm (center-to-top (open) height, Class 900/1500 pressure seal bonnet, regular port size, full port one size smaller; NPS 3/8 not offered (printed dash)) |
| center to top open class2500 welded | NPS 1/2: 295 mm | NPS 3/4: 295 mm | NPS 1: 345 mm | NPS 1-1/4: 410 mm | NPS 1-1/2: 410 mm | NPS 2: 460 mm (center-to-top (open) height, Class 2500 welded bonnet, ASME B16.34, regular port size, full port one size smaller; NPS 3/8 not offered (printed dash)) |
| center to top open class2500 pressure seal | NPS 1/2: 383 mm | NPS 3/4: 383 mm | NPS 1: 406.5 mm | NPS 1-1/4: 454.5 mm | NPS 1-1/2: 454.5 mm | NPS 2: 540 mm (center-to-top (open) height, Class 2500 pressure seal bonnet, ASME B16.34, regular port size, full port one size smaller; NPS 3/8 not offered (printed dash)) |
| handwheel class150 300 600 flanged | NPS 1/2: 100 mm | NPS 3/4: 100 mm | NPS 1: 120 mm | NPS 1-1/2: 160 mm | NPS 2: 220 mm (handwheel diameter (W), Class 150-300-600 flanged, bolted bonnet, regular port) |
| handwheel class2500 pressure seal | NPS 1/2: 150 mm | NPS 3/4: 150 mm | NPS 1: 180 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, regular port size, full port one size smaller; NPS 3/8 not offered (printed dash); NPS 3/8 not offered (printed dash)) |
| handwheel class2500 welded | NPS 1/2: 150 mm | NPS 3/4: 150 mm | NPS 1: 180 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, regular port size, full port one size smaller; NPS 3/8 not offered (printed dash); NPS 3/8 not offered (printed dash)) |
| 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), Class 800 bolted bonnet, full port size, threaded and socket weld ends, ASME B16.34/API 602) |
| 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), Class 800 welded bonnet, regular port size, full port one size smaller) |
| handwheel class900 1500 bolted or 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 900/1500 bolted or welded bonnet, regular port size, full port one size smaller, bolted bonnet) |
| handwheel class900 1500 pressure seal | NPS 1/2: 110 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 900/1500 pressure seal bonnet, regular port size, full port one size smaller; NPS 3/8 not offered (printed dash); NPS 3/8 not offered (printed dash)) |
Hướng dẫn ứng dụng và chọn loại
Select this execution where small-bore lines need a through-conduit shut-off at class ratings far above what a cast compact body carries: match the bonnet design to pressure (bolted for general service, pressure seal toward the top of the Class 150-4500 envelope), the forging to line temperature and medium, and the end connection to the piping standard — socket-weld and threaded ends for compact instrument-grade pipework, RF/RTJ flanges or butt-weld ends for permanent plant installation.
Câu hỏi thường gặp
What standard governs compact forged gate valves?
The benchmark execution is built to API 602, the compact forged-body gate valve standard, with both bolted bonnet and pressure seal bonnet constructions available so the same envelope serves general plant service through Class 2500-class and beyond, up to Class 4500.
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 pressure classes that cast small-bore bodies cannot.
How do I choose body material and end connection?
Body materials span carbon steel for general service, low-temperature steel for cold service, stainless and duplex stainless for corrosion, and alloy, nickel-base or titanium-alloy forgings 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 ends for compact replacement).
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