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- American Standard Straight Pipe Thread 美国标准直管螺纹
- American Standard Internal Straight Pipe Threads 美国标准内直管螺纹
- round die for straight pipe threading 圆柱管螺纹圆板牙
- straight pipe thread 圆筒形管螺纹
- That pipe thread is bad. Use another one instead. 那个钻杆的丝扣坏了,换另外一根。
- Three diameters of straight pipe are required on the valve outlet. 在阀门的出口处需要三倍管道直径长度的直线管道。
- A 3/4" NPT pipe thread has an outside diameter - OD - of 1.050 inches. 例如：一个标准为3/4"NPT的管外部直径为1.;050英寸。
- STRAIGHT PIPE TAPS High-Speed Steel-Ground Thread 直管螺纹丝锥
- Drill pipe threads are not cleaned in that way. 钻杆丝扣不是那样清洗的。
- The principle and method of pipe flow calculation using friction drag of a straight pipe are introduced. 介绍了利用流体管道直管段的沿程阻力计算管道流量的原理和方法。
- Schroeder SKB's are available with pipe thread connections s ranging from 1 to 3 inches. 施罗德SKB的管螺纹连接s不等，从1至3英寸。
- In general a minimum of 10 pipe diameters of straight pipe should be provided upstream of a swing check valve to minimize adverse conditions. 通常，旋启式止回阀与上游部件的距离至少要有管道直径的10倍，这样才能够将反作用降到最小程度。
- Due to the existence of electric submersible pump Kau, so connected in the pipe thread Department has set up anti-down block. 因电潜泵存在倒扣问题，所以在管螺纹联接处设置了防倒块。
- Hard for incrustation: The adoption of straight pipe avoids the phenomenon of incrustation while enlarges the area of heat-exchanging. 不易结垢。直通管的采用，不仅加大了换热面积，而且不易结垢。
- Apply pipe dope sparingly on pipe threads, never on valve threads. 在管道螺纹上涂敷螺纹油，但是不要在阀门螺纹上涂螺纹油。
- The inner surface of the bent part defines a convexly bent curved surface to spread outward with respect to a space receiving the fluid mixture injected from the straight pipe. 弯曲部(23)的内表面相对于从直管部(22)喷出来的流体通过的空间构成凸状的弯曲的曲面，并向外侧扩展。
- Needle valves have NPS / internal pipe threaded ends. 针形阀配置NPS内管螺纹连接端口。
- By using the method of eigenvalue analysis and nonlinear analysis,the structure stability was analyzed, and the critical load of straight pipe was,then,obtained. 并用非线性方法和特征值方法对结构稳定性进行分析,得出直管段的稳定临界载荷。
- Tapered pipe threads produce radial stress in female fittings. 锥管螺纹在内螺纹内会产生径向应力。
- Rosemount Conditioning Orifice technology provides unprecedented performance with minimal straight pipe requirements - only 2 pipe diameters upstream and 2 downstream. 罗斯蒙特调节孔板的技术支持以最少的直管的要求前所未有的性能-只有2管径上游和下游2。
