Z43H-16C 手动法兰暗杆平行式单闸板硬密封铸钢（WCB）平板闸阀

结构说明Structre instruction：
1.阀座为镶嵌PTFE或填充PTFE密封圈的刚性浮动阀座，具有双重密封效果，阀座由端部O型圈施加予紧力，
并由浮动阀座的活塞效应达到进出口同时密封，这种双重密封结构使阀体中腔与通道完全隔离，
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.

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结构说明Structre instruction：

1.阀座为镶嵌PTFE或填充PTFE密封圈的刚性浮动阀座，具有双重密封效果，阀座由端部O型圈施加予紧力，并由浮动阀座的活塞效应达到进出口同时密封，这种双重密封结构使阀体中腔与通道完全隔离，可以在工作状态下检修阀门，排除体腔内残留物。

2.闸板为一长方形平行平板，其上开一与通道直径相同的通孔（带导流孔）．也可不开孔（不带导流孔）．全启时，通道平滑为直管段，流阻系数低，压力损失小，开启与关闭时闸板与阀座始终相互接触，即可擦试附着在密封面间的颗粒污物，又可使密封面不被介质直接冲刷而得到保护。

3.阀杆与闸板采用“Tt，形槽连接；

4.扁体阀门中法兰采用金属柔性石墨垫片，圆体阀门中法兰采用O型密封圈密封：

5.密封面处设有油封装置，紧急状态下可旋紧注脂器注入密封脂以保证密封的绝对可靠；

6.阀门为全封闭式，并在阀盖上端部设有开度指示器，可随时指示阀门的启闭式状态与高度；

7.阀杆、阀座和闸板等零件表面都经过特殊的热处理( MoS2)：

8.阀体底部和阀盖上部均设有泄压装置，即可排放脏物，又可排放由于温升等原因造成的升压：

9.手轮顺时针转动为关闭，反之为开启。

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.

设计、制造标准 Standard for design and manufacture

1.设计制造按GB/T12234-89

2.法兰连接尺寸按：JB/T 79-94

3.阀门检查和试验按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

压力试验Pressure Test

压力等级 Pressur Class						工作压力 Working pressure
压力等级 Pressur Class		液体密封 Liquid seal	气体密封 Gas seal	壳体强度 Body case Intesion	气体低压密封 gas at low pressure Seal	工作压力 Working pressure
公称压力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

基本型号规格及压力Basic Model，Specification and Pressure

常用基本型号 Model					密封材料代号 Code of sealing material	公称压力PN Nominal pressure
Flangetype 法兰式	手动Manual	伞齿轮传动 Bevel geal drive	气动 Pneumatic	电动Electrinc	密封材料代号 Code of sealing material	公称压力PN Nominal pressure
	Z43型	Z543型	Z643型	Z943型	F增强聚四氟乙烯 F：Reinforced polytetrafluoroethylene D渗氮钢 D：Nitriding steel H合金钢 H：Alloy steel Y硬质合金 Y：Hard alloy	1.6~4Mpa
	Z44型	Z544型	Z644型	Z944型		公称通径DNNominal diameter
	Z47型	Z547型	Z647型	Z947型		50~500mm
Speclal type 特殊型号	Z前加K抗硫阀门 Add K before Z refers to anti-sulfur valve Z前加RQ，燃气 Add RQ before Z refers to combustion gas

主要连接及外形尺寸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