亚洲视频一区二区,国产一区二区网站,国产精品…在线观看,欧美高清正版在线,欧美日韩 国产区 在线观看,亚洲最新视频在线观看

Fire special open pole seat flexible seat

Products > Gate valve > Fire special open pole seat flexible seat

Fire special open pole seat flexible seat

Model: RRHX
Nominal diameter: DN50 ~ 600mm
Nominal pressure: PN1.0 ~ 2.5MPa
Operating temperature: 0 ~ 120 ℃
Suitable medium: water, oil, gas, etc.
Flange Standard: GB / T17241.6 GB9113
Test Standard: GB / T13927 API598
Contact purchase
shared:

Overview        for fire the next shot resilient seated gate valve in addition has the advantage that the outer elastic , and can be more visually shows valve opening , the opening and closing rapidly and reliably . So often used in fire protection systems and industrial ,usually installed in a high position from the ground . Widely It is used as regulating and intercepting device in liquid lines such as tap water, sewage, construction, petroleum, chemical, food, medicine, textile, electricity, shipbuilding, metallurgy and energy system.


Pressure test

Nominal pressure 
     PN (MPa)

Strength test

Water Seal / Upper Seal Test

Gas seal test

1.5 * PN (MPa)

1.1 * PN (MPa)

0.5-0.7 (MPa)

1.0

1.5

1.1

0.6 MPa

1.6

2.4

1.8

2.5

3.8

2.8


RRHX fire special
 rod seat flexible block main parts and components list of materials

Serial number

Part Name

Material

1

Handwheel

Malleable iron

2

Stem nut

Copper alloy

3

Bracket

Gray cast iron, ductile iron, cast steel

4

Gland

Ductile iron, cast steel

5

Sealing ring

NBR, EPDM

6

Valve stem

stainless steel

7

Flange gasket

NBR, EPDM

8

gate

Ductile iron coated EPDM or NBR

9

Body

Gray cast iron, ductile iron, cast steel

 

RRHX Fire special rod seat flexible block main connection Dimensions : ( unit : mm)

DN

50

65

80

100

125

150

200

250

300

350

400

450

500

600

L

178

190

203

229

254

267

292

330

356

381

406

432

457

508

Hmin ( all off )

313

332

375

425

498

562

680

838

950

1010

1220

1280

1480

1665

Hmax ( fully open )

355

375

415

475

540

605

720

875

990

1050

1245

1310

1560

1750


国产av夜夜欢一区二区三区| 国内精品伊人久久久久妇| 国外av无码精品国产精品| 欧美大胆a级视频免费| 亚洲一区二区三区在线观看网站| 国产公妇仑乱在线观看| 免费无遮挡无码永久视频| 中文无码人妻有码人妻中文字幕| 国产帅男男gay网站视频| 色婷婷久久综合中文网站| 乱爱性全过程免费视频| 亚洲欧美日韩国产成人| 国产午夜精品一二区理论影院| 日韩欧美aⅴ综合网站发布| 粗大挺进尤物人妻中文字幕| 美女裸体无遮挡免费视频网站| 玉蒲团2之玉女心经| 久久精品国产99国产精品澳门 | 69久久夜色精品国产69| 精品视频无码一区二区三区| 性久久久久久久| 国产资源在线视频| 亚洲av无码专区在线观看下载 | 欧洲肉欲k8播放毛片| 成全动漫视频在线观看免费播放| 免费看小12萝裸体视频国产| japanese色国产在线看免费| 欧妇女乱妇女乱视频| 国产av一区二区三区无码野战| 日韩久久无码免费毛片软件| 国产福利在线视频尤物tv| 少妇高潮无套内谢| 国产人妖在线观看一区二区| 亚洲国产精品一区二区第四页 | 免费人成视频在线观看视频| √新版天堂资源在线资源| 免费a级毛片| 东北老妇露脸xxxxx| 无码日韩精品一区二区免费暖暖 | 国产伦精品一区二区三区视频小说 | 又粗又大又硬又爽的免费视频|