LG系列節(jié)流裝置
一、概述
LG系列節(jié)流裝置是與差壓計(jì)配套使用的，用于測(cè)量液體、蒸汽、氣體的流量。廣泛的應(yīng)用在石油、化工、冶金、電力和輕工等工業(yè)部門(mén)。
節(jié)流裝置分孔板、噴嘴、流量管三大類品種，具有結(jié)構(gòu)簡(jiǎn)單、精度高、可靠性好、應(yīng)用范圍廣等特點(diǎn)。
作為節(jié)流裝置專業(yè)生產(chǎn)廠家，我公司曾參與起草制訂了差壓式流量計(jì)國(guó)家計(jì)量檢定規(guī)程。我公司生產(chǎn)的節(jié)流裝置以品種全，生產(chǎn)工藝成熟，可靠性好，人無(wú)我有，人有我全，人全我優(yōu)見(jiàn)長(zhǎng)。
二、節(jié)流裝置型號(hào)的編制
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LG系列節(jié)流裝置代號(hào)、型號(hào)的編制積技術(shù)參數(shù)和性能: L（流量表）+G（節(jié)流裝置）+節(jié)流元件+取壓方法+取壓形式+公稱壓力．公稱通徑．組成結(jié)構(gòu) (如:LGBJH1.0-100-1 LGQJK1.0-500-14 LGBFK10-200-21等) |
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| 節(jié)流元件: B－標(biāo)準(zhǔn)孔板； |
取壓方法： J－角接取壓法； |
取壓形式: H－環(huán)室； |
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| 組成結(jié)構(gòu)： 圖１－圖２６（詳見(jiàn)產(chǎn)品的選型樣本）
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| 公稱壓力系列：0.25 0.6 1.0 1.6 2.5 4.0 6.4 10 16 18.4 20 22 23 28 32
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| 公稱通徑系列: 15 20 25 32 40 50 65 80 100 125 150 175 200 225 250 300 350 400 450 500 600 700 800 900 1000 1200 1400 1600 1800 2000
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類別
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取壓方式
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名稱
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型號(hào)
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技 術(shù) 參 數(shù) |
供貨范圍安裝圖
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技術(shù)標(biāo)準(zhǔn)
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公稱壓力（MPa）
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公稱通徑（mm）
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直徑比（ß） | 雷諾數(shù)（Re） | ||||||
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孔
板 |
角
接
取
壓
法 |
標(biāo)
準(zhǔn)
孔
板 |
LGBJH1.0-1
|
1.0
|
50-400
|
0.20-0.75 0.20-0.45 >0.45 |
>=5000 >=10000 |
圖1
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GB/T2624-93(即ISO5167-1-91)
D<50mm及D>1000mm執(zhí)行YY(廠標(biāo)) |
|
LGBJH2.5-1
|
2.5
|
50-400
|
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LGBJH4.0-2
|
4.0
|
50-400
|
圖2
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LGBJH6.4-2
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6.4
|
50-400
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|||||||
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LGBJH10-3
|
10
|
50-400
|
圖3
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LGBJH20-3
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20
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50-250
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LGBJH1.0-4
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1.0
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50-400
|
圖4
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LGBJH2.5-4
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2.5
|
50-400
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LGBJH4.0-5
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4.0
|
50-400
|
圖5
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LGBJH6.4-5
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6.4
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50-400
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LGBJH1.0-6
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1.0
|
50-400
|
圖6
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LGBJH2.5-6
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2.5
|
50-400
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|||||||
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LGBJH4.0-7
|
4.0
|
50-400
|
圖7
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LGBJH6.4-7
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6.4
|
50-400
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LGBJH10-8
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10
|
175-250
|
圖8
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LGBJH18.4-8
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18.4
|
45-250
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LGBJH23-8
|
23
|
45-300
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LGBJH28-8
|
28
|
45-300
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|||||||
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LGBJK1.0-9
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1.0
|
50-400
|
圖9
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LGBJK2.5-9
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2.5
|
50-400
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|||||||
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LGBJK4.0-10
|
4.0
|
50-400
|
圖10
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LGBJK6.4-10
|
6.4
|
50-400
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|||||||
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LGBJK0.25-11
|
0.25
|
450-1600
|
圖11
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LGBJK0.6-11
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0.6
|
450-1400
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LGBJK1.0-11
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1.0
|
450-1200
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LGBJK1.6-11
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1.6
|
450-1200
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LGBJK2.5-11
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2.5
|
450-800
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雙孔板
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LGSJH1.0-12
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1.0
|
50-400
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0.32-0.77 | 3000-16000 |
圖12
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YY(廠標(biāo))
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LGSJH2.5-12
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2.5
|
50-400
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|||||||
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透鏡孔板
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LGTJK22-13
|
22
|
15-150
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0.20-0.75 | 5000-10000 |
圖13
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LGTJK32-13
|
32
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15-150
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圓缺孔板
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LGQJK0.25-14
|
0.25
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50-1600
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0.32-0.85 | 5000-200000 |
圖14
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LGQJK0.6-14
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0.6
|
50-1400
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|||||||
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LGQJK1.0-14
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1.0
|
50-1200
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|||||||
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LGQJK1.6-14
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1.6
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50-1200
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|||||||
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LGQJK2.5-14
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2.5
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50-800
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|||||||
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小孔板
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LGXJH1.0-15
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1.0
|
15-40
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0.15-0.75 | 2000-1000000 |
圖15
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LGXJH2.5-15
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2.5
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15-40
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LGXJH6.4-16
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6.4
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15-40
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圖16
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法
蘭 取 壓 法 |
標(biāo)
準(zhǔn) 孔 板 |
LGBFK1.0-17
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1.0
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50-400
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0.20-0.75 >0.45 |
>1260ß |
圖17
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GB/T2624-93
|
|
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LGBFK2.5-17
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2.5
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50-400
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LGBFK4.0-18
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4.0
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50-400
|
圖18
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LGBFK6.4-18
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6.4
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50-400
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|||||||
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LGBFK6.4-19
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6.4
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50-400
|
圖19
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LGBFK10-19
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10
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50-300
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|||||||
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LGBFK16-19
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16
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50-300
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|||||||
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LGBFK6.4-20
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6.4
|
50-400
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圖20
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LGBFK10-20
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10
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50-300
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LGBFK16-20
|
16
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50-300
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|||||||
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LGBFK6.4-21
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6.4
|
50-400
|
圖21
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LGBFK10-21
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10
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50-300
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LGBFK16-21
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16
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50-300
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小孔板
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LGXFK2.5-22
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2.5
|
15-40
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0.15-0.75 | 2000-1000000 |
圖22
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YY(廠標(biāo))
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LGXFK6.4-22
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6.4
|
15-40
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|||||||
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LGXFK10-22
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10
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15-40
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LGXFK2.5-23
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2.5
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15-40
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圖23
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LGXFK6.4-24
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6.4
|
15-40
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圖24
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噴
嘴 |
角
接 取 壓 法 |
標(biāo)
準(zhǔn) 噴 嘴 |
LGPJH1.0-1
|
1.0
|
50-400
|
0.30-0.80 0.30-0.44 0.44-0.80 |
20000-10000000 70000-10000000 |
圖1
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GB/T2624-93
D<50mm 執(zhí)行YY(廠標(biāo)) |
|
LGPJH2.5-1
|
2.5
|
50-400
|
|||||||
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LGPJH4.0-2
|
4.0
|
50-400
|
圖2
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LGPJH6.4-2
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6.4
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50-400
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|||||||
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LGPJH10-3
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10
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50-400
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圖3
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LGPJH20-3
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20
|
50-250
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|||||||
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LGPJH1.0-4
|
1.0
|
50-400
|
圖4
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LGPJH2.5-4
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2.5
|
50-400
|
|||||||
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LGPJH4.0-5
|
4.0
|
50-400
|
圖5
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LGPJH6.4-5
|
6.4
|
50-400
|
|||||||
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LGPJH1.0-6
|
1.0
|
50-400
|
圖6
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LGPJH2.5-6
|
2.5
|
50-400
|
|||||||
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LGPJH4.0-7
|
4.0
|
50-400
|
圖7
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LGPJH6.4-7
|
6.4
|
50-400
|
|||||||
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LGPJH10-8
|
10
|
175-250
|
圖8
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LGPJH18.4-8
|
18.4
|
45-250
|
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LGPJH23-8
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23
|
45-300
|
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LGPJH28-8
|
28
|
45-300
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圓
弧 噴 嘴 |
LGYJH1.0-1
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1.0
|
50-400
|
0.25-0.70 | 200-200000 7000-60000 |
圖1
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YY(廠標(biāo))
|
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LGYJH2.5-1
|
2.5
|
50-400
|
|||||||
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LGYJH4.0-2
|
4.0
|
50-400
|
圖2
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LGYJH6.4-2
|
6.4
|
50-400
|
|||||||
|
LGYJH10-3
|
10
|
50-400
|
圖3
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LGYJH20-3
|
20
|
50-250
|
|||||||
|
LGYJH1.0-4
|
1.0
|
50-400
|
圖4
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||||||
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LGYJH2.5-4
|
2.5
|
50-400
|
|||||||
|
LGYJH4.0-5
|
4.0
|
50-400
|
圖5
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||||||
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LGYJH6.4-5
|
6.4
|
50-400
|
|||||||
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LGYJH1.0-6
|
1.0
|
50-400
|
圖6
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LGYJH2.5-6
|
2.5
|
50-400
|
|||||||
|
LGYJH4.0-7
|
4.0
|
50-400
|
圖7
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LGYJH6.4-7
|
6.4
|
50-400
|
|||||||
|
LGYJH10-8
|
10
|
175-250
|
圖8
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LGYJH18.4-8
|
18.4
|
45-250
|
|||||||
|
LGYJH23-8
|
23
|
45-300
|
|||||||
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LGYJH28-8
|
28
|
45-300
|
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小噴嘴(圓弧式)
|
LGNJH1.0-15
|
1.0
|
15-40
|
0.28-0.65 | 200-200000 650-76000 |
圖15
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LGNJH2.5-15
|
2.5
|
15-40
|
|||||||
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LGNJH6.4-16
|
6.4
|
15-40
|
圖16
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法
蘭 取 壓 法 |
LGNFK2.5-22
|
2.5
|
15-40
|
圖22
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LGNFK6.4-22
|
6.4
|
15-40
|
|||||||
|
LGNFK10-22
|
10
|
15-40
|
|||||||
|
LGNFK2.5-23
|
2.5
|
15-40
|
圖23
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LGNFK6.4-24
|
6.4
|
15-40
|
圖24
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徑距法
|
長(zhǎng)徑噴嘴
|
LGCGK20-25
|
20
|
100-400
|
0.2-0.8 | 10000-10000000 |
圖25
|
GB/T2624-93
|
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流量管
|
0.5D/0.5d法
|
文丘里管
|
LGWAH0.6-26
|
0.6
|
200-1200
|
0.4-0.7 | 200000-2000000 |
圖26
|
|
|
LGWAH1.0-26
|
1.0
|
200-1200
|
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