PQ647TC耐磨陶瓷密封偏心半球閥Partialwear-resisting(control)ceramicsuper-hardsealingfacesegmentalballvalve工作原理Operationprinciple由閥桿帶動(dòng)關(guān)閉件繞旋轉(zhuǎn)中心點(diǎn)轉(zhuǎn)動(dòng)時(shí)，球體由另點(diǎn)移至第三點(diǎn)，此時(shí)相對(duì)閥門中心點(diǎn)，從另點(diǎn)的第三點(diǎn)軌跡為一凸輪狀偏心，向下進(jìn)入閥座使閥門關(guān)閉保持密封

詳細(xì)介紹

PQ647TC 耐磨陶瓷密封偏心半球閥 Partial wear-resisting(control) ceramic super-hard sealing face segmental ball valve

工作原理 Operation principle

由閥桿帶動(dòng)關(guān)閉件繞旋轉(zhuǎn)中心點(diǎn)轉(zhuǎn)動(dòng)時(shí)，球體由另點(diǎn)移至第三點(diǎn)，此時(shí)相對(duì)閥門中心點(diǎn)，從另點(diǎn)的第三點(diǎn)軌跡為一凸輪狀偏心，向下進(jìn)入閥座使閥門關(guān)閉保持密封。該閥由于存在上述凸輪原理，閥門關(guān)閉件從開啟到關(guān)閉過程中，作用在閥座上的力逐漸增大密封比壓，直至密封，反之亦然。這就大大改善了以往球閥的密封狀態(tài)和密封效果，適合高溫、高壓及磨損嚴(yán)重的場(chǎng)合使用，流通能力達(dá)，密封性能好，使用壽命長(zhǎng)。

Driven by the stem to close one to wind the rotatory central point while rotating, the spheroid is moved to the third a bit more separately, relative valve central point at this moment, form the third orbit a bit one cam form partial another, enter it and make it close to keep sealing. Because the cam principle of mentioned above, the valve closes one from course of closing, strength that act on valve seat increase gradually, close pieces of between surface and the valve flat break away from to keep in touch at all, and crescent to seal than pigeonhole, until totally sealing, the opposite is also true. This has improved sealed states and sealed results of the past ball valve greatly, suit high temperature, high pressure and wear and tear serious occasion use, circulate ability to be heavy, characteristic of good performance, having long performance life etc.

偏心耐磨(調(diào)節(jié))陶瓷、超硬密封面半球閥產(chǎn)品圖偏心耐磨(調(diào)節(jié))陶瓷、超硬密封面半球閥外形尺寸圖

主要性能規(guī)范 Specifications

名稱 Name		(調(diào)節(jié))陶瓷半球閥 (Control)ceramic half ball valve	超硬密封面半球閥 Super hard packing surface half ball valve
公稱通徑Nominal diameter		25～400	25～400
公稱壓力Nominal pressure		1.6, 2.5, 4.0, 6.4	1.6, 2.5, 4.0, 6.4
試驗(yàn)壓力 Test pressure	強(qiáng)度 Intensity	2.4, 3.8, 6.0, 9.6	2.4, 3.8, 6.0, 9.6
	密封 Seal	1.8, 2.8, 4.4, 7.1	1.8, 2.8, 4.4, 7.1
適用溫度 Applicable Temperature
適用介質(zhì) Applicable medium		煤粉、煤渣、粉狀顆粒等腐蝕性介質(zhì) coal dust, slack, slack, limestone, Gypsum slurry and corrosive medium
驅(qū)動(dòng)方式 Drive type		手動(dòng)、電動(dòng)、氣動(dòng) Manual, electrically operated, imposing manner
連接形式 Connection form		法蘭Flange

主要零件材料 Main parts of material

名稱 Name	陶瓷半球閥 Ceramic half ball valve	超硬密封面半球閥 extra hard seal surface half ball valve
閥體body	WCB, 304, 316	WCB, 304, 316
閥桿 stem	2Cr13, 304, 316	2Cr13, 304, 316
閥座 seat	陶瓷硬度HV≥1100 Ceramic hardness HV≥1100	不銹鋼表面超硬處理 Stainless steel surface extra hard handle
球體 ball	陶瓷硬度HV≥1100 Ceramic hardness HV≥1100	不銹鋼、硬度HRC60～70 stainless steel HRC60～70
流道 flow channel	陶瓷硬度HV≥1100 Ceramic hardness HV≥1100	碳鋼、HRC60~70 Carbon steel HRC60~70
填料 packing	柔性石墨 Flexible graphite

主要連接尺寸 Main connecting dimensions

型號(hào)Type	PN	DN	L	D	D1	D2	b	n-Φ
PNQ47TC PNQ47SY	1.6MPa	25	127	115	85	65	14	4-M12
		32	140	135	100	78	16	4-M16
		40	165	145	110	85	16	4-M16
		50	178	160	125	100	16	4-M16
		65	190	180	145	120	18	4-M16
		80	203	195	160	135	20	8-M16
		100	229	215	180	155	20	8-M16
		125	254	245	210	185	22	8-M16
		150	267	280	240	210	24	8-M20
		200	292	335	295	265	26	12-M20
		250	330	405	355	320	30	12-M22
		300	356	460	410	375	30	12-M22
		350	381	520	470	435	34	12-M22
		400	406	580	525	485	36	16-M27

型號(hào)Type	PN	DN	L	D	D1	D2	b	n-Φ
PNQ47TC PNQ47SY	2.5MPa	25	127	115	85	65	16	4-M12
		32	140	135	100	78	18	4-M16
		40	165	145	110	85	18	4-M16
		50	178	160	125	100	20	4-M16
		65	190	180	145	120	22	8-M16
		80	203	195	160	135	22	8-M16
		100	229	230	190	160	24	8-M20
		125	254	270	220	188	28	8-M22
		150	267	300	250	218	30	8-M22
		200	292	360	310	278	34	12-M22
		250	330	425	370	332	36	12-M27
		300	356	485	430	390	40	16-M27
		350	381	550	490	448	44	16-M30
		400	406	610	550	505	48	16-M30
	4.0MPa	25	127	115	85	65	16	4-M12
		32	140	135	100	78	18	4-M16
		40	165	145	110	85	18	4-M16
		50	178	160	125	100	20	4-M16
		65	190	180	145	120	22	8-M16
		80	203	195	160	135	22	8-M16
		100	229	230	190	160	24	8-M20
		125	254	270	220	188	28	8-M22
		150	267	300	250	218	30	8-M22
		200	292	375	320	282	38	12-M27
		250	330	445	385	345	42	12-M30
		300	356	510	450	408	46	16-M30
		350	381	570	510	465	52	16-M30
		400	406	655	585	535	58	16-M36

型號(hào)Type	PN	DN	L	D	D1	D2	b	n-Φ
PNQ47TC PNQ47SY	6.4MPa	25	127	135	100	78	22	4-M16
		32	140	150	110	82	24	4-M20
		40	165	165	125	95	24	4-M20
		50	178	175	135	105	26	4-M20
		65	190	200	160	130	28	8-M20
		80	203	210	170	140	30	8-M20
		100	229	250	200	168	32	8-M22
		125	254	295	240	202	36	8-M27
		150	267	340	280	240	38	8-M30
		200	292	405	345	300	44	12-M30
		250	330	470	400	352	48	12-M36
		300	356	530	460	412	54	16-M36

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