網(wǎng)站首頁(yè)產(chǎn)品展示VQ641 氣動(dòng)V型半偏心球閥VQ641H-16P/R 氣動(dòng)法蘭固定球直通流道硬密封不銹鋼（304、316）半偏心球閥

VQ641H-16P/R 氣動(dòng)法蘭固定球直通流道硬密封不銹鋼（304、316）半偏心球閥

偏心半球閥的特點(diǎn)
偏心半球閥的特點(diǎn)之一啟閉無(wú)磨擦．由于采用偏心結(jié)構(gòu)．閥門在關(guān)閉的過(guò)程中．球體逐漸靠近閥座，到關(guān)閉位置完全接觸；在開啟時(shí)球體離開密封位置即可完全脫開．開啟扭矩小
Biased half ball valve characteristic?
Biased one of half ball valve characteristics opens shuts, because uses the eccentric structure, the valve? in the shuting down process, the spheroid gradually approaches the valve seat, completely contacts to the off-position;

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偏心半球閥的特點(diǎn)

偏心半球閥的特點(diǎn)之一啟閉無(wú)磨擦．由于采用偏心結(jié)構(gòu)．閥門在關(guān)閉的過(guò)程中．球體逐漸靠近閥座，到關(guān)閉位置完全接齄；在開啟時(shí)球體離開密封位置即可完全脫開．開啟扭矩??；第二個(gè)特點(diǎn)是密封面可實(shí)現(xiàn)自清潔．球體離開閥座時(shí)，介質(zhì)可沖去密封面上的積聚物．對(duì)于易結(jié)晶介質(zhì)．球體在關(guān)閉過(guò)程中可切除介質(zhì)結(jié)晶達(dá)到密封的目的．避免了其它閥門無(wú)法開關(guān)的弊端；第三個(gè)特點(diǎn)是密封嚴(yán)緊，球體、閥座是雙金屬．采取不同工藝．密封面可組合成防腐、耐磨等各種類型．滿足不同工況的需求，密封是球面線接觸，靠二維偏心實(shí)現(xiàn)零泄漏。

Biased half ball valve characteristic

Biased one of half ball valve characteristics opens shuts, because uses the eccentric structure, the valve in the shuting down process, the spheroid gradually approaches the valve seat, completely contacts to the off-position; When opening the spheroid leaves seals the position the completely to withdraw, opens the torque to be small; The second characteristic is the packing surface may realize from cleanly, when the spheroid leaves the valve seat, the medium may flush away in the packing surface the agglomeration, regarding is easy to Cfystallize the medium, the spheroid may excise the medium crystallization in the closure process to achieve the seal the goal, avoided other valves being unable the switch malpractice;The third character-istic is the seal close, the spheraid, the valve seat are the bimetal, adopts thedifferent craft, the packing surface may the group synthesize the anticarrosion, be wear-resisting and so on each kind of type, satisfies the different operating made the demand, the seal is the spherical surface, depends on two-dimensional biased realizaton zero to divulge.

主要設(shè)計(jì)參數(shù)Main design variable

公稱通徑：2”~28”DN50~700

公稱壓力：Calss 150~60Lb, PNl.O~lO.OMPa

閥體材質(zhì)：WCB, CF8, CF8M

球體：硬密封：WCB/CF8CF8M+STL 軟密封：CF8/CF8M

閥座：硬密封：A105/F304/F316+STL 軟密封：PTFE, PPL

工作溫度：硬密封：-40℃~425℃ 軟密封：-28~250℃

采用的主要標(biāo)準(zhǔn)Uses main standard

設(shè)計(jì)制造按API 6D GB/T12237-1989

試驗(yàn)和檢驗(yàn)按API 598 JB/T9092-1999

法蘭尺寸按ANSI B16.5 GB/T9113-2000

JG/T79-1994 HG20592-1997

緒構(gòu)長(zhǎng)度按HT-2000

工作原理

偏心半球閥由閥桿帶動(dòng)球體繞旋轉(zhuǎn)中心A轉(zhuǎn)動(dòng)時(shí)，球體由B點(diǎn)移動(dòng)C點(diǎn)，此時(shí)相對(duì)閥門中心O,從B到C的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。該閥由于存上上述凸輪原理．閥門關(guān)閉件從開啟到關(guān)閉過(guò)程中，作用在閥座上的力逐漸增加，即關(guān)閉件表面與閥座由完全脫離至接觸，并逐漸增大密封比壓．直至完全密封．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，適合高溫高壓及易結(jié)晶磨損嚴(yán)重的場(chǎng)合使用。

Principle of work

The biased half ball valve when circles the center of rotation A rotation by the valve lever impetus spheroid, the spheroid by B moves C, this time relative valve center O, from B to the C path is a cam shape bias, enters the valve seat toward un-der to cause the valve closure maintenace seal. This valve because has above cam principle, the valve closure from opens to the closure process in, affects the strength gradually increases on the valve seat, namely the shutting down surface and the valve seat by completely are separated from to the contact, and gradually increases the seal to compare the pressure, until completely seals, vice versa. This greatly im-proved the former bll valve seal condition and the seal effect, suits the high tempera-ture high pressure and is easy to crystallize wears the serious situation use.

適用場(chǎng)合

我公司半球閥產(chǎn)品按用途分為：通用閥、管線閥、料漿專用閥、燃?xì)鈱Ｓ瞄y、石油化工專用閥、煤粉噴吹專用閥六大系列。在石油、化工、冶金、電力、燃?xì)狻⑴呕?、噴煤粉等行業(yè)是閘閥、截止閥、Y型閥、球閥的更新?lián)Q代產(chǎn)品。

Suitable situation

The our company half ball valve product divides into according to the use: the pipeline valve, the material thick liquid special-prupose valve, the fuel gas spe-cial-purpose valve, the petroleum chemical industry special-purpose valve, the pow-dared coal spurt blows the special-purpose valve six big series. In the petroleum, the chemical industry, the metallurgy, the electric power, the fuel gas, the platoon ash,spurt profession and so on powdered coal is the gate valve, the cut-off valve, the Y valve, the ball valve renewal product.

國(guó)標(biāo)連接及外形尺寸Main conn ection and externaldimensions(mm)

公稱通徑（DN）	1.0MPa（GB9113-2000法蘭Flange）								公稱通徑（DN）	4.0MPa（GB9113-2000法蘭Flange）
公稱通徑（DN）	L	D	D1	D2	b	f	n-d	H	公稱通徑（DN）	L	D	D1	D2	D3	f1	b	f	n-d	H
50	124	165	125	99	20	2	4-18	200	50	124	165	125	99	88	3	20	4	4-18	200
65	145	185	145	118	20	2	4-18	215	65	145	185	145	118	110	3	22	4	8-18	215
80	165	200	165	132	20	2	8-18	235	80	165	200	165	132	121	3	24	4	8-18	235
100	200	220	180	156	22	2	8-18	250	100	200	235	190	156	150	3.5	24	4.5	8-22	250
125	254	250	210	184	22	2	8-18	280	125	254	270	220	184	176	3.5	26	4.5	8-26	280
150	267	285	240	211	24	2	8-22	300	150	267	300	250	211	204	3.5	28	4.5	8-26	300
200	292	40	295	266	24	2	8-22	370	200	292	375	320	284	260	3.5	34	4.5	12-30	370
250	330	395	350	319	26	2	12-22	420	250	330	450	385	345	313	3.5	38	4.5	12-33	420
300	390	445	400	370	26	2	12-22	450	300	390	515	450	409	364	3.5	42	4.5	16-33	450
350	468	505	460	429	26	2	16-22	520	350	468	580	510	465	422	4	46	5	16-36	520
400	526	565	515	480	26	2	16-26	570	400	526	660	585	535	474	4	50	5	16-39	570
450	610	615	565	530	28	2	20-26	640	450	610	685	610	560	524	4	50	5	20-39	640
500	610	670	620	582	28	2	20-26	640	500	610	755	670	615	576	4	52	5	20-42	640
600	762	780	725	682	34	2	20-30	720	600	762	890	795	735	675	4	60	5	20-48	720
700	889	895	840	794	34	5	24-30	800	700
公稱通徑（DN）	1.6MPa（GB9113-2000法蘭Flange）								公稱通徑（DN）	6.4MPa（GB9113-2000法蘭Flange）
公稱通徑（DN）	L	D	D1	D2	b	f	n-d	H	公稱通徑（DN）	L	D	D1	D2	D3	f1	b	f	n-d	H
50	124	165	125	99	20	2	4-18	200	50	124	180	135	105	88	4	26	3	4-23	200
65	145	185	145	118	20	2	4-18	215	65	145	205	160	130	110	4	28	3	8-23	215
80	165	200	165	132	20	2	8-18	235	80	165	215	170	140	121	4	30	3	8-23	235
100	200	220	180	156	22	2	8-18	250	100	200	250	200	168	150	4.5	32	3	8-26	250
125	254	250	210	184	22	2	8-18	280	125	254	295	240	202	176	4.5	36	3	8-30	280
150	267	285	240	211	24	2	8-22	300	150	267	345	280	240	204	4.5	38	3	8-34	300
200	292	340	295	266	24	2	12-22	370	200	292	405	345	300	260	4.5	44	3	12-36	370
250	330	405	350	319	26	2	12-26	420	250	330	470	400	352	313	4.5	48	3	12-36	420
300	390	460	400	370	28	2	12-26	450	300	390	530	460	412	364	4.5	54	4	16-36	450
350	468	520	460	429	30	2	16-26	520	350	468	600	525	475	422	5	60	4	16-41	520
400	526	580	515	480	32	2	16-30	570	400	526	670	585	525	474	5	66	4	16-42	570
450	610	640	565	530	34	2	20-30	640	450	-	-	-	-	-	-	-	-	-	-
500	610	715	620	582	36	2	20-33	640	500	610	800	705	640	576	5	70	4	20-48	640
600	762	840	725	682	38	2	20-36	720	600	762	930	820	750	675	6	76	5	20-58	720
700	889	910	840	794	40	5	24-36	800	700
公稱通徑（DN）	2.5MPa（GB9113-2000法蘭Flange）								公稱通徑（DN）	10.0MPa（GB9113-2000法蘭Flange）
公稱通徑（DN）	L	D	D1	D2	b	f	n-d	H	公稱通徑（DN）	L	D	D1	D2	D3	f1	b	f	n-d	H
50	124	165	125	99	20	2	4-18	200	50	124	195	145	112	88	4	28	3	4-26	200
65	145	185	145	118	22	2	8-18	215	65	145	220	170	138	110	4	32	3	8-26	215
80	165	200	160	132	24	2	8-18	235	80	165	230	180	148	121	4	34	3	8-26	235
100	200	235	190	156	24	2	8-22	250	100	200	265	210	172	150	4.5	38	3	8-30	250
125	254	270	220	184	26	2	8-26	280	125	254	315	250	210	176	4.5	42	3	8-34	280
150	267	300	250	211	28	2	8-26	300	150	267	355	290	250	204	4.5	46	3	12-34	300
200	292	360	310	274	30	2	12-26	370	200	292	430	360	312	260	4.5	54	3	12-36	370
250	330	425	370	330	32	2	12-30	420	250	330	506	430	382	313	4.5	60	3	12-42	420
300	390	485	430	389	34	2	16-30	450	300	390	585	500	442	364	4.5	70	4	16-42	450
350	468	555	490	448	38	2	16-33	520	350	468	655	560	492	422	5	76	4	16-48	520
400	526	620	550	503	40	2	16-36	570	400	526	715	620	558	474	5	80	4	16-48	570
450	610	670	600	548	42	2	20-36	640	450
500	610	730	660	609	44	2	20-36	640	500
600	762	845	770	720	46	2	20-39	720	600

美標(biāo)連接及外形尺寸Main conn ection and externaldimensions(mm)

公稱通徑（DN）		150Lb（ANSI B16.5RF法蘭Flange）								公稱通徑（DN）		4000Lb（ANSI B16.5RF法蘭Flange）
公稱通徑（DN）		L	D	D1	D2	b	f	n-d	H	公稱通徑（DN）		L	D	D1	D2	b	f	n-d	H
2″	50	124	152	120.5	92	16	1.6	4-19	200	2″	50	124	165	127	92	25.5	6.4	8-19	200
21/2″	65	145	178	139.5	105	18	1.6	4-19	215	21/2″	65	145	190	149	105	29	6.4	8-22	215
3″	80	165	190	152.5	127	19	1.6	4-19	235	3″	80	165	210	168.5	127	32	6.4	8-22	235
4″	100	200	229	190.5	157	24	1.6	8-19	250	4″	100	200	254	200	157	35	6.4	8-26	250
5″	125	254	254	216	186	24	1.6	8-22	280	5″	125	254	279	235	186	38.5	6.4	8-26	280
6″	150	267	279	241.5	216	26	1.6	8-22	300	6″	150	267	318	270	216	41.5	6.4	12-26	300
8″	200	292	343	298.5	270	29	1.6	8-22	370	8″	200	292	381	330	270	48	6.4	12-29	370
10″	250	330	406	362	324	31	1.6	12-25	420	10″	250	330	445	387.5	324	54	6.4	16-32	420
12″	300	390	483	432	381	32	1.6	12-25	450	12″	300	390	521	451	381	57.5	6.4	16-35	450
14″	350	468	533	476	413	35	1.6	12-29	520	14″	350	468	585	514.5	413	60.5	6.4	20-25	520
16″	400	526	597	540	470	37	1.6	16-29	570	16″	400	526	650	571.5	470	63.5	6.4	20-39	570
18″	450	610	635	578	533	40	1.6	16-32	640	18″	450	610	711	628.5	533	67	6.4	24-39	640
20″	500	610	699	635	584	43	1.6	20-32	640	20″	500	610	775	686	584	70	6.4	24-42	640
24″	600	762	813	749.5	692	48	1.6	20-35	720	24″	600	762	915	813	692	76.5	6.4	24-48	720
28″	700	889	927	863.5	800	72	1.6	28-35	800	28″	700
公稱通徑（DN）		300Lb（ANSI B16.5RF法蘭Flange）								公稱通徑（DN）		600Lb（ANSI B16.5RF法蘭Flange）
公稱通徑（DN）		L	D	D1	D2	b	f	n-d	H	公稱通徑（DN）		L	D	D1	D2	b	f	n-d	H
2″	50	124	165	127	92	23	1.6	8-19	200	2″	50	124	165	127	92	26	6.4	8-19	200
21/2″	65	145	190	149	105	26	1.6	8-22	215	21/2″	65	145	190	149	105	29	6.4	8-22	215
3″	80	165	210	168.5	127	29	1.6	8-22	235	3″	80	165	210	168.5	127	32	6.4	8-22	235
4″	100	200	254	200	157	32	1.6	8-22	250	4″	100	200	273	216	157	38	6.4	8-25	250
5″	125	254	279	235	186	35	1.6	8-22	280	5″	125	254	330	266.5	186	45	6.4	8-29	280
6″	150	267	318	270	216	37	1.6	12-22	300	6″	150	267	356	292	216	48	6.4	12-29	300
8″	200	292	381	330	270	42	1.6	12-25	370	8″	200	292	419	349	270	56	6.4	12-32	370
10″	250	330	445	387.5	324	48	1.6	16-29	420	10″	250	330	508	432	324	64	6.4	16-35	420
12″	300	390	521	451	381	51	1.6	16-32	450	12″	300	390	559	489	381	67	6.4	20-35	450
14″	350	468	584	514.5	413	54	1.6	20-32	520	14″	350	468	603	527	413	70	6.4	20-38	520
16″	400	526	648	571.5	470	58	1.6	20-35	570	16″	400	526	686	603	470	77	6.4	20-41	570
18″	450	610	711	628.5	533	61	1.6	24-35	640	18″	450	610	743	654	533	83	6.4	20-414	640
20″	500	610	775	686	584	54	1.6	24-35	640	20″	500	610	813	724	584	89	6.4	24-44	640
24″	600	762	914	813	692	70	1.6	24-41	720	24″	600	762	940	838	692	102	6.4	24-52	720
28″	700	889	1035	940	800	86	1.6	28-45	800	28″	700