超低温针型阀
简要描述：RETZ进口低温针型阀，宜选用加上阀盖的，适用于甲烷，液态天然气，已烯，二氧化碳，液氨，液氧，液氮，液氢、液氩、压缩天然气及工业低温液体
品牌：RETZ- 工况条件：开启/截止/节流
- 温度/压力：P-T: 320bar@-196℃
- 更新时间：2022/09/19
进口超低温针型阀性能参数 Performance parameter
超低温针型阀主体材后选用锻件固溶处理，并成功解决了阀门因低温材料收缩问题，和填料高压密封差的问题，浸渍聚四氟乙烯的石棉为填料以柔性石墨为密封材料，这种材料对气体、液体均不渗透，它具有较低的紧固压力就可达到密封。还有自润滑性，用作阀门填料可以防止填料与阀杆的磨损 RETZ The main body material of the ultra-low temperature needle valve is treated by solid solution of forgings, which successfully solves the problem of shrinkage of the valve due to low temperature materials and poor sealing of the packing under high pressure. Asbestos impregnated with PTFE is used as the packing and flexible graphite is used as the sealing material. This material is impermeable to gas and liquid, and it can be sealed with low fastening pressure. It is also self-lubricating and can be used as valve packing to prevent the wear of packing and valve stem
结构特征： 锥面密封,活动阀瓣 Structural features: cone seal, movable valve disc
功 能：截断和节流 Function: truncation and throttling
一体式锻造阀体设计，材料∶316SS，316LSS，304SS，304LSS
工作压力可达∶32MPa（5000psig）；
工作温度∶-196℃至80°C
接口类型及尺寸:G1/4”至1"，M10至M36螺纹；6mm至28mm双卡套；3/8”至1"，10mm至25mm焊接 Interface type and size: G1/4 "to 1", M10 to M36 thread; 6mm to 28mm double ferrule; 3/8 "to 1", 10mm to 25mm welding
密封面材质∶与阀体及阀尖材质一致、阀体或（和）阀尖堆焊硬质合金 Sealing surface material: consistent with the valve body and valve tip material, valve body or (and) valve tip hardfacing
下阀杆阀尖类型∶锥型、球型 Lower stem valve tip type: cone type, ball type
锥形阀芯 Conicalvalvecore
| 球形阀芯 Sphericalvalvecore
|
No. | 部件描述 Part description | 材料 Material | ||
1 | 螺钉 Screw | 304SS | 304SS | CS |
2 | T型手柄T bat handle | 304SS | 304SS | CS |
3 | 阀杆 stem | 316LSS | 304LSS | 410SS |
4 | 密封压盖 gland retainer | 316SS | 304SS | CS |
5 | 防松螺母 Check nut | 304SS | 304SS | CS |
6 | 填料接头Gland body | 316LsS | 304LSS | CS |
7 | 填料 Gland packing | 柔性石墨或PTFE Graphite orPTFE | 柔性石墨或PTFE Graphite orPTFE | 柔性石墨或PTFE Graphite orPTFE |
8 | 垫片 The gasket | 316SS | 304SS | 304SS |
9 | 锁销 Lock pin | 304SS | 304SS | 304SS |
10 | 阀体 Valve Body | 316SS | 304SS | CS |
11 | 阀芯 Valve core | 司太立STELLITE | 司太立STELLITE | 司太立STELLTE |
进口超低温针型阀结构特征 structure characteristics
设计符合ASME VIII，ANSI B16.34/B16.5B31.3 和API6D的相关要求retz品牌 The product design shall conform to ASME VIII, ANSI B16.34/B16.5B31.3 and API6D
不旋转阀芯，以确保压力关闭的紧密性不旋转阀杆承受超高压和超高温 Do not rotate the valve element to ensure the tightness of pressure closing. Do not rotate the valve stem to withstand ultra-high pressure and ultra-high temperature
No. | 部分描述 Part description | 材料 Material |
1 | 阀体 Valve Body | 316SS |
2 | 下阀杆 The lower stem | 316SS+STELLITE |
3 | 垫圈 The gasket | 316SS |
4 | 填料 Gland packing | 柔性石墨或PTFEGraphite or PTFE |
5 | 压紧垫圈 Pressure washer | 316SS |
6 | 固定螺钉 Retaining screw | 304SS |
7 | 锁紧螺母 Lock nut | 304SS |
8 | 上阀杆 The upper stem | 316SS |
9 | 密封压盖 gland retainer | 316LSS |
10 | T型手柄T bat handle | 304SS |
11 | 螺钉 Screw | 304SS |
能够在最低温度下使用，保持工作所需要的力学性能，冲 击韧性 It can be used at the lowest temperature to maintain the required mechanical properties and impact toughness
低温下相对延伸度及组织稳定性，具有良好的耐蚀性 Relative elongation and organizational stability at low temperature, with good corrosion resistance
在低温及无油润滑的情况下，具有良好的耐磨性 Good wear resistance at low temperature and without oil lubrication
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