中国台湾317疏水阀，进口疏水阀，蒸汽疏水阀
| (ST-B1 / ST-B2 / ST-B3 / ST-B4) CAST IRON INVERTED BUCKET STEAM TRAP |
MATERIAL | | PARTS | Material | Cap and Body | Tensile Cast FC22 | Valve Seat | Heat Treated Chrome Steel | Valve | Heat Treated Chrome Steel | Gasket | Compressed Non-Asbestos | Lever | SUS 304 | Valve Retainer | SUS 304 | Bucket | Stainless Steel SUS 304 | Integral Strainer | Stainless Steel SUS 304 | Water Hammer Resister | Steel |
When placing order of Steam Trap, please indicate with: | 1. Model number. | 2. Dimension of pipe connection: Screwed end: BSPT or NPT. | 3. Specify type of flanged in detail: Flanged end: JIS 10K or ANSI 150 LBS. | 4. Operating pressure setting: 3K / 5 K / 10K / 14K / 18K. (Maximum : 18 kg/cm2) |
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SCREWED TYPE | Model | Connection | L | H | H1 | A | Weight (kg) | M.O.P. kg/cm2 | B1 | 1/2”, 3/4”, 1” | 128 | 100 | 175 | 96 | 3.5 | 18 | B2 | 3/4”, 1” | 168 | 133 | 228 | 144 | 7.2 | 18 | B3 | 1” | 198 | 173 | 296 | 178 | 13.5 | 18 | B4 | 1.1/4”, 1.1/2” | 232 | 185 | 347 | 203 | 21 | 18 | CONNECTION: BSPT, NPT ARE AVAILABLE. |
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中国台湾317疏水阀的基本作用是将蒸汽系统中的凝结水、空气和二氧化碳气体尽快排出；同时zui大限度地自动防止蒸汽的泄漏。疏水阀的品种很多，各有不同的性能。选用疏水阀时，首先应选其特性能满足蒸汽加热设备的*运行，然后才考虑其他客观条件，这样选择你所需要的疏水阀才是正确和有效的。
317倒吊桶式疏水阀内部是一个倒吊桶为液位敏感件，吊桶开口向下，倒吊桶连接杠杆带动阀心开闭阀门。倒吊桶式疏水阀能排空气，不怕水击，抗污性能好。过冷度小，漏汽率小于3%，zui大背压率为75%，连接件比较多，灵敏度不如自由浮球式疏水阀。因倒吊桶式疏水阀是靠蒸汽向上浮力关闭阀门，工作压差小于0.1MPA时，不适合选用。
当装置刚启动时，管道内的空气和低温凝结水进入疏水阀内，倒吊桶靠自身重量下坠，倒吊桶连接杠杆带动阀心开启阀门，空气和低温凝结水迅速排出。当蒸汽进入倒吊桶内，倒吊桶的蒸汽产生向上浮力，倒吊桶上升连接杠杆带动阀心关闭阀门。倒吊桶上开有一小孔，当一部份蒸汽从小孔排出，另一部份蒸汽产生凝结水，倒吊桶失去浮力，靠自身重量向下沉，倒吊桶连接杠杆带动阀心开启阀门，循环工作，间断排水。
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