可调式节流阀(手动、液动)：
Adjustable choke valve(Manual、Hydraulic):
可调式节流阀按调节方式可分为：针形可调式、筒型可调式、孔板式设计特点
AdjustableChoke valve is classified into needle-type adjustable, barrel-type adjustable and orifice feature in design
阀针和阀芯采用硬质合金制造，具有耐磨损、耐冲刷、抗腐蚀的性能
Valve needle and valve core are made of hard alloy steel with some properties of erosion resistance and corrosion resistance
可起到调节流量、压力和关闭的重要作用
Take the effect of adjustment of flow-rate and pressure and opening/closing the choke valve.
针型结构主要用于采油树设备，筒型结构主要用于节流管汇
Needle structure is used for X’mas tree assembly, and barrel for choke manifold.
液动、手动、固定节流阀参数表
主要技术参数：
Main technology parameters:
名称 Name | JF52-21 | JF52-35 | JF52-70 | JF65-21 | JF65-35 | JF65-70 | JF65-105 | JF80-35 | JF78-70 | JF78-105 | JF 103-35 | JF 103-70 | |
工作压力 Working pressure | 21 MPa 3000 Psi | 35 MPa 5000 Psi | 70 MPa 10000 Psi | 21 MPa 3000 Psi | 35 MPa 5000 Psi | 70 MPa 10000 Psi | 105 MPa 15000 Psi | 35 MPa 5000 Psi | 70 MPa 10000 Psi | 105 MPa 15000 Psi | 35 MPa 5000 Psi | 70 MPa 10000 Psi | |
公称通径 Nominal bore | 52 2-1/16” | 52 2-1/16” | 52 2-1/16” | 65 2-9/16” | 65 2-9/16” | 65 2-9/16” | 65 2-9/16” | 80 3 1/8” | 80 3-1/16” | 80 3-1/16” | 103 4 1/16” | 103 4 1/16” | |
适用介质 Suitable medium | 石油、泥浆、天然气等 Petroleum、mud、natural gas etc |
