啪啪资源_日本黄色电影网址_久久久网站_久久国产一区二区三区_久久www免费人成看片小草_免费精品一区

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


主站蜘蛛池模板: 日韩精品免费 | 精品国产福利 | 午夜视频在线观看网站 | 欧美一级艳片视频免费观看 | 日韩手机在线 | 亚洲精品视频播放 | 久久亚洲国产精品 | 欧美日韩亚洲国产综合 | 国产精品久久久久久久竹霞 | 精品www| 偷拍电影一区二区三区 | 黄色av网站在线观看 | 黑人一级片视频 | 国产1页 | www.欧美.com| 岛国在线免费 | 激情综合色综合久久综合 | 中文字幕av网 | 成人欧美一区二区三区白人 | 久久综合一区二区三区 | 色九九| 99精品电影 | 成人免费一区二区三区 | 久久精品久久综合 | 色噜噜视频在线观看 | 日本中文字幕在线观看 | 美日韩免费视频 | 免费国产黄 | 亚洲成人精品在线观看 | 久久久av一区 | 国产视频一区二区在线 | 91在线免费看 | 天天干天天干天天干天天射 | 99国产精品视频免费观看一公开 | 91久久久久 | 波多野结衣三区 | 日韩欧美视频 | 日本精品视频在线观看 | 亚洲精品一区国语对白 | 亚洲视频综合 | 国产精品久久久久久久久 |