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BW型通用型不锈钢金属软管
BW-based general-purpose stainless steel metal hose
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BW型通用型不锈钢金属软管

BW型通用型不锈钢金属软管主要由波纹管、网套和接头(法兰或活接头)等部件组成。适用于管道工程系统中为补偿位移和安装偏差、吸收振动及降低噪声等所采用,根据工程需要可适当延长和缩短制造长度。由于软管的弹性体波纹管的材料是奥氏体不锈钢,因此具有最佳的柔软性和耐曲挠性,很容易吸收各种交变运动和载荷,抗疲劳性强、耐压高、耐腐蚀、耐高低温(-200℃-600℃),广泛用于航天、航空、船舶、化工、石油、电力、冶金、造纸、纺织、军工、建筑、医药、食品、交通运输等行业。当温度、介质变化大时,需考虑温度与压力的递减系数,除表中所列材料外,其他特殊铁系、镍系、合金钢的压力递减系数请接洽本公司。

BW-based general-purpose stainless steel metal hose is mainly consisted of bellows, net sheath and joint (flange or active joint) etc. It is used in the system of pipeline project for compensating displace-ment, installing distortion, vibration absorber as well as muffling, the length of which can be adjusted according to the need of the project. Since the corr-ugated soft pipe is made up of austenitic stainless steel, it has the best pliability and flexibility and is easy to absorb the distortion caused by movement and weight. It is widely used in the field of spacef-light, aviation, shipping, chemical industry, oil, electric power, metallurgy, paper making, textile, war industry, construction, medicine, food, traffic and transportation etc. When the temperature and medium changes greatly, the temperature and descend-ing coefficient of pressure should be taken into consideration. Apart from the material listed in the table, please contact us if you need the descending coefficient of pressure of other special material such as iron, nickel or alloy steel.


温度、材料、压力递减系数表

table of descending coefficient of pressure, temperature, material

材料 material SUS321 SUS316L SUS304
温度temperature
-200-50 1.00 1.00 1.00
100 0.96 0.94 0.93
150 0.92 0.90 0.89
200 0.88 0.86 0.84
250 0.84 0.82 0.79
300 0.80 0.78 0.74
350 0.76 0.74
400 0.72 0.70
450 0.66
500 0.60
550 0.54
600 0.44

各种酸碱选材表

selecting table of all kinds of acid and alkali

温度temperature 30°C 接近沸点
near boiling point
中间温度
mid temperature
介质 medium
硝酸
nitric acid
SUS304 SUS304 SUS304L
硫酸
sulfuric acid
SUS316 Incoloy825 Incoloy825
亚硫酸
sulfurous acid
SUS316 SUS316.317 SUS316.317
醋酸
acetic acid
SUS304.316 SUS316.317 SUS317.114ML
磷酸
phosphoric acid
SUS304 SUS316.317 SUS317L.
Incoloy825
盐酸
hydrochloric acid
SUS316 Incoloy825 Incoloy825

alkali
SUS304 SUS304.304L SUS304.347

ammonia
SUS304 SUS316 SUS316.316L
盐水
salt water
SUS036L SUS317.M-5 Incoloy825

常用波纹管材质

common material of bellows

名称name 牌号Shopsign 使用温度°C working temperature °C 标准号standard No.
奥氏体不锈钢austenitic stainless steel ocr18Ni10Ti(sus321) -200~550 GB/T4237? GB/T3280
ocr17Ni12Mo2(sus316)
ocr18Nig(sus304)
oocr19Ni10(sus304L) -200~425
oocr17Ni14MO2(SUS316L) -200~450
耐蚀合金corrosion resistant alloys NS111 -200~700 GB/T15010
FN-2 CB1330

几种介质选材表

selecting table of all kinds of medium

材料 material 可使用的材料
material available
优良材料
excellent material
介质 medium
普通水
water
SUS304 SUS316
海水
seawater
NTKM-5 Incoloy825
蒸汽
steam
SUS316L SUS316L
原油
crude oil
SUS316L NTKM-5
轻质油
light oil
SUS316 SUS316L
重油
heavy oil
SUS304 SUS316
锅炉排气高温
high temperature for boiler exhaust
SUS304 SUS316L
低温
low temperature
SUS316L Incoloy825
柴油机排气
diesel exhaust
SUS304 SUS316
粗制进炉气
crude gas into the furnace
SUS316L Incoloy825
精制焦炉气
refining gas into the coke oven
SUS316 SUS316L
高炉气
blast furnace gas
SUS304 SUS316
烧切炉排气
tangential firing furnace exhaust
SUS316 SUS316L
船舶甲板蒸汽管
ship deck steam pipe
SUS316L Incoloy825
船舶低温液化气管
ship low-temperature liquefied gas pipe
SUS316L SUS316L
空气
air
SUS304 SUS304
低温氧气
low-temperature oxygen
SUS304 SUS316L
高温氧气
high-temperature oxygen
SUS316 SUS316L

技术特性表

technical characteristics table

公称通径mm
nominal diameter
长度mm
length
波纹管有纹面积cm2
lined area of bellows
最小弯曲半径(动态)mm
min. bend radius (dynamic)
径向最大变化量mm
max. radial displacement
法兰联接
flange join
15 200 3 120 30
20 200 3.5 170 30
25 200 9 200 30
32 200 19 250 30
40 200 21 250 30
50 250 41 350 20
65 250 61 410 20
80 250 82 450 20
100 250 125 560 20
125 280 180 660 20
150 280 255 815 20
200 280 480 850 20
250 300 730 950 20
300 300 1020 1400 25
350 300 1280 1500 25
400 350 1580 1800 25
450 350 1980 2000 30
500 400 2450 2400 30
600 400 3450 2800 30
700 400 4740 3000 30
800 450 5960 3200 30
丝口联接
interface join
15 250 3 160 30
20 250 3.5 200 30
25 250 9 220 30
32 250 19 280 30
40 300 21 280 20
50 300 41 400 20
65 300 61 500 20
80 300 82 700 20

以上为工作压力1.0Mpa之参数,1.6Mpa产品弯曲半径放大约20%,径向最大变位量缩小约20%,2.5Mpa产品弯曲半径放大约40%,轴向伸缩量按照长度根据压力大小取3~5%,但安装时应按原始长度取值,产品伸缩时会产生网罩鼓胀和凹瘪现象。

Note:The parameter mentioned above is under 1.0Mpa working pressure. Under 1.6Mpa working pressure, the bend radius will be magnified about 20% and max. Radial displacement will shrink about 40% while the bend radius will be magnified about 20% when the working pressure is 2.5M.The axial displacement is 3~5% according to length and pressure but it is the original length value when installed. The displacement of the product will caused the reticulation expanding or concave.

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