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阀座

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Never seat or back seat the valve using an air wrench; manually seat and back seat the valves with caution, especially when equipped with bevel gears.

没有阀座或后座的阀门采用气动扳手;手动阀座和后座阀门操作要小心,特别是在配置伞齿轮操作机构后。

The valve seat ring - welded seat ring is perpendicular to flow path, easy to maintain.

4阀座环–焊接阀座环垂直于流动通道,易于维护。

Through the valve to reduce the diameter to increase the opening work, the specific ways:① replace a file of small-caliber valve, such as DN32 replaced DN25;② body does not change, the replacement of small diameter spool valve seat Block.

通过把阀的口径减小来增大工作开度,具体办法有:①换一台小一档口径的阀,如DN32换成DN25;②阀体不变更,更换小阀座直径的阀芯阀座

The percentage of linear and so quick Figure 1 Three common control valve sleeve sleeve diagram Interchangeability of parts from Ball Valves the valve to see some adjusting mechanism trim can be easily replaced and maintained, for example, the sleeve valve sleeve can be easily replaced to achieve different flow characteristics; top and bottom-oriented trim can be easily turn the spool and the valve seat to achieve positive and anti-body to replace the valve body to achieve the air to open the way to replace gas off; valve isolation valve can be easily dismantled for the seat replacement and cleaning.

快开 线性等百分比图1 三种常用套筒控制阀的套筒示意图从阀内件的互换性看,一些调节机构的阀内件可方便地更换和维护,例如,套筒阀可方便地更换套筒实现不同流量特性;顶底导向的阀内件可方便地翻转阀芯和阀座来实现正体阀与反体阀的更换,从而实现气开和气关方式的更换;阀体分离阀可方便地拆卸,用于阀座更换和清洗。

Removable seat preference should be given, because they are easy maintenance, and easy to replace the valve seals Swing check valves should be used one kind of screws or bolts to connect the valve cap for inspection and repair of disc and seat.

可拆卸的阀座应优先选用,因为它们容易维修,而且便于更换阀中的密封件旋启式止回阀应该选用一种螺丝或螺栓连接的阀帽,以便检查和修理阀瓣和阀座

The standard flow channel valve can be used: the United States NIBCO T-580-70 Valve; S-580-70 Valve (2), available to full-flow channel valve indented Path: The United States NIBCO T-585-70 Valve; S-585-70 Valve 2, check valve: Path DN65 valve should be used the following Swing Y-shaped structure, and in accordance with the United States valves and pipe fittings Manufacturers Standardization Society MSS-SP80 standards of manufacture, working pressure 125 lbs class, in line with the United States Society for Testing and Materials Standard Bronze ASTMB62 valve, configuration, Teflon flap valve seat, or seat configuration flexibility of the spring-driven lift-type check valve.

可采用的标准流道阀门:美国尼伯科T-580-70球阀;S-580-70球阀(2)、可采用的不缩径全流道阀门:美国尼伯科T-585-70球阀;S-585-70球阀 2、止回阀:通径DN65以下的止回阀应该采用Y形旋启式结构,并按照美国阀门和管件制造商标准化协会MSS-SP80标准制造,工作压力125磅级,符合美国材料试验协会ASTMB62标准的青铜阀体,配置聚四氟乙烯阀座阀瓣,或配置弹性阀座的弹簧驱动升降式止回阀。

Kit includes: Disc assembly, Spring, Seat, Seat o-ring and Cover O-ring.

组件包括:阀瓣总成,弹簧,阀座阀座O形环和阀盖O形环。

Kit includes: Disc assembly, Spring, Seat, Seat o-ring, Cover o-ring and lubricant.

组件包括:阀瓣总成,弹簧,阀座阀座O形环,阀盖O形环和润滑剂。

In addition to this valve disc is free to lift, the other part of the same as the cut-off valve, the fluid pressure valve from the valve seat sealing surface of valve lift, medium return A42C Type Pound-Grade Low Lift Spring Loaded Safety Valve led to a seat on the disc down and cut off the flow.

此阀门除了阀瓣可以自由地升降之外,其余部分如同截止阀一样,流体压力使阀瓣从阀座密封面上抬起,介质回流导致阀瓣回落到阀座上,并切断流动。

Based on the practice of the use of φ95mm subsurface sucker rod pump in Shengtuo Oilfield in recent years, the causes of the failure of the pump are analyzed, and relevant precautions are put forward:(1)selecting oil wells with sufficient fluid supply for pumping;(2)under the condition of the pump efficiency being the same, the submergence depth of the pump being somewhat larger than that of the small pump, and 450~500m being feasible;(3)adopting Grade H ultrahigh-strength rod string and fixing a sinker bar at the bottom of the rod string;(4)selecting long stroke and low pumping speed, and more than 5m stroke and less than 6min-1 pumping speed being recommended;(5)adopting zirconium oxide valve ball and seat + spray welded plunger + nitrided barrel.

根据胜坨油田近几年采用φ95mm有杆抽油泵提液的实践,分析了造成这种抽油泵失效的原因,包括与其配套的脱节器失效、抽油杆断脱、泵漏、电动机不配套和生产管理不善等。为增强泵的提液能力和工作可靠性,提出5 项预防措施:(1)选择有充足供液能力的油井;(2)在保持相同泵效的情况下,泵的沉没度应略大于小泵,推荐按450~500m设计;(3)采用H级超高强度抽油杆柱,并在杆柱底部配置一定重量的加重杆;(4)采用长冲程、低冲次的参数匹配,推荐光杆冲程大于5m,冲次小于6min-1;(5)为提高泵筒、活塞和阀座的防腐耐磨性,推荐采用&氧化锆阀球和阀座+喷焊柱塞+氮化泵筒&的结构形式。

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随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

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关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。