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Flange globe valve

Flange globe valve belongs to forced sealing valve, so when the valve closes, pressure must be exert…

Description：

、簡(jiǎn)介說(shuō)明：" style="background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">A brief introduction:
J41W series Flange valve ，所以在閥門(mén)關(guān)閉時(shí)

。">Sealed valves are mandatory, so the valve is closed, the valve must exert pressure to force the sealing surface does not leak. ，是閥桿和填料的磨擦力與由介質(zhì)的壓力所產(chǎn)生的推力

，關(guān)閥門(mén)的力比開(kāi)閥門(mén)的力大，所以閥桿的直徑要大

，否則會(huì)發(fā)生閥桿頂彎的故障

。">When the medium into the valve six from the bottom of the valve, the operating force required to overcome the resistance, is the stem and the packing friction and pressure generated by the media thrust force than the valve off the valve opening force, so the diameter of the valve stem, otherwise it will bend the stem top of the fault.
J41W series Flange valve 。">The body structure of straight through, DC and right angle type. ，但其流體的阻力***大。">Straight through is the most common structure, but its maximum fluid resistance. ，多用于含固體顆?div id="jfovm50" class="index-wrap">；蛘扯却蟮牧黧w。">DC type fluid resistance small, used for containing solid particles or the viscosity of the fluid.，適用于較小通經(jīng)

、較高壓力的的截止閥。">Multi angled body with forged valve for smaller circulation, high pressure.
、操作原理和結(jié)構(gòu)說(shuō)明：">Second, the operation principle and structure description:
、手輪順時(shí)針?lè)较蜣D(zhuǎn)時(shí),閥桿向下移動(dòng),閥瓣下降使密封面密合,將通路切斷.逆轉(zhuǎn)時(shí)則開(kāi)啟,閥桿提到***高點(diǎn)上密封起作用。">1, the hand wheel clockwise, the valve stem moves downward, the valve closed down so that the sealing surface, will be cut off. The open pathway is reversed when the valve stem seal mentioned play the highest point.

、本閥門(mén)增加了一個(gè)上密封.在閥門(mén)開(kāi)啟狀態(tài)時(shí),與填料一起兩層密封作用,并對(duì)填料有一定的保護(hù)作用

。">2, the addition of a valve on the seal. In the valve open state, together with a filling layer sealing effect, and has certain protective effect on packing.

、本閥門(mén)采用尼龍制品作密封面,填料為軟成型填料,上密封也為軟材質(zhì),密封性能較好

。">3, the nylon products for sealing, packing soft packing shape, the seal for the soft material, good sealing performance.
Three, Flange valve The characteristics of:

、結(jié)構(gòu)簡(jiǎn)單

，制造和維修比較方便

。">1, simple structure, manufacture and maintenance more convenient.

，啟閉時(shí)間短

。">2, the working stroke is small, open and close a short time.

Design and manufacture	The length of the structure	Holen size	Pressure temperature Eagle	Test a test
GB12235	GB12221	GB9113 JB79	GB9131	GB/T13927 JB/T9092

Nominal pressure	One point six	Two point five	Four	Six point four	Ten	Sixteen
strength test	Two point four	Three point eight	Six	Nine point six	Fifteen	Twenty-four
Water seal test	One point eight	Two point eight	Four point four	Seven point four	Eleven	Eighteen
The seal test	One point eight	Two point eight	Four point four	Seven point zero four	Eleven	Eighteen
Seal test	0.4-0.7

Body cover plate	The stem	Sealing surface	Gasket (ring)	filler	Working temperature	Applicable medium
WCB	2Cr13	13Cr STL Body material nylon	Enhancedflexiblegraphite 1Crl3 / graphite 08 mild steel 0Cr18Ni9Ti OCr18Ni12Mo2Ti	Flexible graphite Enhancedflexiblegraphite SFB-260 SFP-260	Less than or equal to 425	、蒸汽、油品">Water, steam, oil
WC1	38CrMoAI 25Cr2MoV				Less than or equal to 450
WC6					Less than or equal to 540
WC9					Less than or equal to 570
ZGCr5Mo					Less than or equal to 540
ZG1Cr18Ni9Ti	1Cr18Ni9Ti				Less than or equal to 200	Nitrose
ZGCr18Ni12Mo2Ti	1C18Ni12Mo2Ti				Less than or equal to 200	Acetic acid

Flange globe valve

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