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Z43 法蘭平板閘閥

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結(jié)構(gòu)說明Structre instruction： 1.閥座為鑲嵌PTFE或填充PTFE密封圈的剛性浮動(dòng)閥座，具有雙重密封效果，閥座由端部O型圈施加予緊力，并由浮動(dòng)閥座的活塞效應(yīng)達(dá)到進(jìn)出口同時(shí)密封，這種雙重密封結(jié)構(gòu)使閥體中腔與通道隔離，1.Valve base is trie rigid floating one inlayed or filled with PTFE sealing ring, and tias double sealing effect. Synchronous sealing at trie inlet and outlet activates thanks to the tension from O ring at the top of valve base as well as the piston effect of floating valve base.

詳細(xì)介紹

結(jié)構(gòu)說明Structre instruction：

1.閥座為鑲嵌PTFE或填充PTFE密封圈的剛性浮動(dòng)閥座，具有雙重密封效果，閥座由端部O型圈施加予緊力，并由浮動(dòng)閥座的活塞效應(yīng)達(dá)到進(jìn)出口同時(shí)密封，這種雙重密封結(jié)構(gòu)使閥體中腔與通道隔離，可以在工作狀態(tài)下檢修閥門，排除體腔內(nèi)殘留物。

2.閘板為一長方形平行平板，其上開一與通道直徑相同的通孔（帶導(dǎo)流孔）．也可不開孔（不帶導(dǎo)流孔）．全啟時(shí)，通道平滑為直管段，流阻系數(shù)低，壓力損失小，開啟與關(guān)閉時(shí)閘板與閥座始終相互接觸，即可擦試附著在密封面間的顆粒污物，又可使密封面不被介質(zhì)直接沖刷而得到保護(hù)。

3.閥桿與閘板采用“Tt，形槽連接；

4.扁體閥門中法蘭采用金屬柔性石墨墊片，圓體閥門中法蘭采用O型密封圈密封：

5.密封面處設(shè)有油封裝置，緊急狀態(tài)下可旋緊注脂器注入密封脂以保證密封的可靠；

6.閥門為全封閉式，并在閥蓋上端部設(shè)有開度指示器，可隨時(shí)指示閥門的啟閉式狀態(tài)與高度；

7.閥桿、閥座和閘板等零件表面都經(jīng)過特殊的熱處理( MoS2)：

8.閥體底部和閥蓋上部均設(shè)有泄壓裝置，即可排放臟物，又可排放由于溫升等原因造成的升壓：

9.手輪順時(shí)針轉(zhuǎn)動(dòng)為關(guān)閉，反之為開啟。

1.Valve base is trie rigid floating one inlayed or filled with PTFE sealing ring, and tias double sealing effect. Synchronous sealing at trie inlet and outlet activates thanks to the tension from O ring at the top of valve base as well as the piston effect of floating valve base. This dual-sealing structure is able to completely separate the middle cavity of valve body from the bare, and it is possible to examine and repair the valve under working condition and remove the leftover in body cavity.

2.Flashboard is an oblong parallelflat plate, on which a through hole (with bleed hole) is available with the same diameter of bore. The through hole (without bleed hole) is unnecessary if not required on it. In the state of fully open, smooth bore is a straight pipe with low flow resistance ａnd small pressure loss. Flashboard always keeps connecting wlth valve base wheneverlt Is open or closed, so that the granule dirt stuck on sealing surface can be clean up andthe sealing surface be kept from directly eroding by medium.

3. T type groove connection between valve stem and flashboard.

4. The flange In the flat valve adopts metal soft graphite spacer and the flange in the round valve adopts O sealing rlng for sealing.

5. There is oil seal device on sealing surface. In emergency condition, you may screw filling greaser and inject sealing grease so as to assure absolutelyreliable sealing.

6. Valve is of fully enclosed type. On the upper end of the valve cover, there Is a jaw opening indicator, which can Indicate the state of open and close andheight of valw at any time.

7. The surfaces of valve stem, valve base, flashboard and other parts have been processed through special heat treatment.

8. Pressure release devlces set on the bottom of valve body and the top of the valve cover separately can not only discharge dirt, but also release the rls-ingpressure due to temperature rise and other causes.

9. Close the valve by turning the handwheel clockwise and open on the contrary.

設(shè)計(jì)、制造標(biāo)準(zhǔn) Standard for design and manufacture

1.設(shè)計(jì)制造按GB/T12234-89

2.法蘭連接尺寸按：JB/T 79-94

3.閥門檢查和試驗(yàn)按GB/T 13927-92

1.DesignManafacfure According to GB/T 12234-89

2.FlangeDimensionAccording tojB/T 79-94

3.valve Checkａnd Test Accordingto GB/T 13927-92

壓力試驗(yàn)Pressure Test

壓力等級 Pressur Class						工作壓力 Working pressure
壓力等級 Pressur Class		液體密封 Liquid seal	氣體密封 Gas seal	殼體強(qiáng)度 Body case Intesion	氣體低壓密封 gas at low pressure Seal	工作壓力 Working pressure
公稱壓力PN（MPa） Nominal pressure	1.6	1.76	1.76	2.4	0.6	1.6
	2.5	2.75	2.75	3.75		2.5
	4	4.4	4.4	6		4

基本型號規(guī)格及壓力Basic Model，Specification and Pressure

常用基本型號 Model					密封材料代號 Code of sealing material	公稱壓力PN Nominal pressure
Flangetype 法蘭式	手動(dòng)Manual	傘齒輪傳動(dòng) Bevel geal drive	氣動(dòng) Pneumatic	電動(dòng)Electrinc	密封材料代號 Code of sealing material	公稱壓力PN Nominal pressure
	Z43型	Z543型	Z643型	Z943型	F增強(qiáng)聚四氟乙烯 F：Reinforced polytetrafluoroethylene D滲氮鋼 D：Nitriding steel H合金鋼 H：Alloy steel Y硬質(zhì)合金 Y：Hard alloy	1.6~4Mpa
	Z44型	Z544型	Z644型	Z944型		公稱通徑DNNominal diameter
	Z47型	Z547型	Z647型	Z947型		50~500mm
Speclal type 特殊型號	Z前加K抗硫閥門 Add K before Z refers to anti-sulfur valve Z前加RQ，燃?xì)? Add RQ before Z refers to combustion gas

主要連接及外形尺寸Main connection and extemal dimensions（mm）

PN	DN	L	H	H1	H2	D	D1	D2	b	f	Z-φd	D0
1.6 （MPa）	50	78	415	85		160	125	100	16	3	4-φ18	220
	65	190	540	95		180	145	120	18	3	4-φ18	250
	80	203	560	110		195	160	135	20	3	8-φ18	250
	100	229	685	125		215	180	155	20	3	8-φ18	300
	125	254	860	140		245	210	185	22	3	8-φ18	320
	150	267	875	165		280	240	210	24	3	8-φ23	350
	200	292	1080	190		335	295	265	26	3	12-φ23	350
	250	330	1360	225		405	355	320	30	3	12-φ25	400
	300	356	1495	255	1330	460	410	375	30	4	12-φ25	500
	350	381	1700	265	1510	520	470	435	34	4	16-φ25	600
	400	406	1950	295	1700	580	525	485	36	4	16-φ30
	450	432	2250	325	2000	640	585	545	40	4	20-φ30
	500	457	2465	335	2150	705	650	608	44	4	20-φ34
	600	508	2680	425	2800	840	770	718	48	4	20-φ41
	700	610	3080	455	3200	910	840	788	50	4	24-φ41
2.5 （MPa）	50	178	415	85		160	125	100	20	3	4-φ18	220
	80	203	530	110		195	160	135	22	3	8-φ18	250
	100	229	692	125		230	190	160	24	3	8-φ23	300
	150	267	875	165		300	250	218	30	3	8-φ25	350
	200	292	1080	190		360	310	278	34	3	12-φ25	350
	250	330	1360	225		425	370	332	36	3	12-φ30	400
	300	356	1495	255	1330	485	430	390	40	4	16-φ30	500
	350	381	1700	290	1510	550	490	448	44	4	16-φ34	600
	400	406	1950	330	1700	610	550	505	48	4	16-φ34
	450	432	2250	350	2000	660	600	555	50	4	20-φ34
	500	457	2465	380	2150	730	660	610	52	4	20-φ41
	600	508	2680	425	2800	840	770	718	56	4	20-φ41
	700	610	3080	455	3200	955	875	815	60	4	25-φ48
4.0 （MPa）	50	216	415	85		160	125	100	20	3	4-φ18	220
	80	283	530	110		195	160	135	22	3	8-φ18	250
	100	305	692	125		230	190	160	24	3	8-φ23	300
	150	403	895	165		300	250	218	30	3	8-φ25	350
	200	419	1080	190		375	320	282	38	3	12-φ30	350
	250	457	1360	225		445	385	345	42	3	12-φ34	400
	300	502	1495	255	1300	510	450	408	46	4	16-φ34	500
	350	762	1700	330	1510	570	510	465	52	4	16-φ34	600
	400	838	1950	370	1700	655	585	535	58	4	16-φ41
	450	914	2250	400	2000	680	610	560	60	4	20-φ41
	500	991	2465	440	2150	755	670	612	62	4	20-φ48
	600	1143	2680	425	2800	890	795	730	62	4	20-φ54