產(chǎn)品結(jié)構(gòu)特點(diǎn)Constructionfeatures1）、本系列閥門主體采用鑄鍛結(jié)構(gòu)，具有平行雙密封副半強(qiáng)制雙向密封，密封面到位運(yùn)動(dòng)和楔緊運(yùn)動(dòng)分步作用，實(shí)現(xiàn)零泄露

詳細(xì)介紹

產(chǎn)品結(jié)構(gòu)特點(diǎn) Construction features

1）、本系列閥門主體采用鑄鍛結(jié)構(gòu)，具有平行雙密封副半強(qiáng)制雙向密封，密封面到位運(yùn)動(dòng)和楔緊運(yùn)動(dòng)分步作用，實(shí)現(xiàn)零泄露。

2）、密封面之間摩擦系數(shù)小，起閉方便，而且，密封面的磨損有自動(dòng)補(bǔ)償功能。

3）、結(jié)構(gòu)簡(jiǎn)單，緊湊，檢修方便，使用壽命長(zhǎng)。

4）、閥蓋填料室設(shè)有真空密封機(jī)構(gòu)，具有自脹壓緊作用，并且，各連接面采用高強(qiáng)膨脹材料密封，使系統(tǒng)與大氣隔離，具有良好的真空密封性能。

5）、本系列閥門連接形式可為法蘭連接及焊接連接兩種，驅(qū)動(dòng)方式為手動(dòng)、電動(dòng)兩種。尤其適用于火電廠汽機(jī)冷凝和真空負(fù)壓系統(tǒng)，起到真空密封隔離作用。

1) the main body of this series of valves adopts the cast forging structure, which has the double seal of the parallel double seal, the sealing of the sealing surface of the valve is in place, and the movement of the sealing cover in place and the step of the wedging movement are used to realize zero leakage.

2) the friction coefficient between the sealing surface is small, and it is convenient to operate. Moreover, the wear of the sealing surface has automatic compensation function.

3) simple structure, compact, convenient maintenance, long service life.

4), the cover packing room equipped with vacuum sealing mechanism, have since the expansion pressure effect, and the junction surface using high-strength packing material, make the system from the atmosphere, has a good vacuum seal performance.

5) the valve connection form of this series can be two kinds of flange connection and welding connection, and the driving mode is manual and electric. Especially suitable for the condensing and vacuum negative pressure system of the power plant.

產(chǎn)品特征 Spericfications

適用介質(zhì)：水、氣、油品、天然氣和酸堿腐蝕性介質(zhì)

適用溫度：-196~425℃

驅(qū)動(dòng)方式：手動(dòng)、氣動(dòng)、電動(dòng)等

公稱壓力：1.0~10.0MPa

公稱通徑：DN50~500mm

Applicable media: water, gas, oil, gas and acid and alkali corrosive medium

Applicable temperature: -196~425℃

Driver: manual, pneumatic, electric, etc

Nominal pressure: 1.0 ~ 10.0MPa

Nominal size: DN50~500mm

技術(shù)規(guī)范 Technical specification

設(shè)計(jì)依據(jù) Design reference	GB系列 GB series
設(shè)計(jì)標(biāo)準(zhǔn) Design standard	GB/T12235
結(jié)構(gòu)長(zhǎng)度 Face to face	GB/T12221
連接法蘭 End flange	GB/T9113 HG20592
試驗(yàn)和檢驗(yàn) Test & inspection	GB/T 26480

試驗(yàn)壓力 Test prssure

壓力等級(jí) Pressure grade	試驗(yàn)壓力 Test pressure
公稱壓力 PN Nominal pressure	殼體試驗(yàn) Sheil test	正密封試驗(yàn) Sealing test	反密封試驗(yàn) Sealing test	氣密封試驗(yàn) Air seal test
1.0	1.5	1.1	1.1	0.6
1.6	2.4	1.76	1.76	0.6
2.5	3.75	2.75	2.75	0.6
4.0	6.0	4.4	4.4	0.6
6.3	9.45	6.93	6.93	0.6
10.0	15.0	11.0	11.0	0.6

截止閥結(jié)構(gòu)長(zhǎng)度和外接尺寸 Main connection dimensions

PN:1.6~4.0				PN:6.3~10.0
公稱通徑 DN	L (mm)	H (mm)	D0 (mm)	L (mm)	H (mm)	D0 (mm)
50	230	280	220	300	360	240
65	290	350	240	340	400	280
80	310	360	280	380	480	320
100	350	410	320	430	530	350
125	400	450	350	500	600	400
150	480	480	400	550	680	450
200	600	600	450	650	750	550
250	650	720	550
300	750	950	650
350	850	1040	750
400	950	1150	800
450	1050	1250	850
500	1150	1380	950