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: 亚洲欧美视频在线 | 亚洲一区二区三区免费视频 | 99精品欧美一区二区三区 | 亚洲天堂久久 | 91精品国产91久久久久久吃药 | 日韩 国产 在线 | 99亚洲国产精品 | 能在线观看的黄色网址 | 亚洲精品一区中文字幕乱码 | 国产在线二区 | 欧美一区二区三区电影 | 亚洲最新av | 亚洲欧美日韩在线一区 | 欧美精品一区二区三区蜜臀 | 国产一区二区三区久久久久久久久 | 色吟av | 成人亚洲视频 | 亚洲网站在线观看 | 亚洲日本乱码一区两区在线观看 | 日韩色av| av一级毛片 | 国产精品久久久久久久久久免费看 | 在线视频a | 成人超碰在线观看 | 国产成人免费视频网站高清观看视频 | 91在线视频免费观看 | 一区二区在线视频 | 日本成人在线视频网站 | 欧美v片 | 国产午夜精品久久久久久久 | 久久久久久久99精品免费观看 | 综合导航 | 久草 在线 | 日韩在线中文 | 日韩精品一区二区三区 | 91麻豆产精品久久久久久 | 欧美一级视频在线观看 | 精品国产一区二区三区久久久蜜月 | 午夜电影网 | 免费无遮挡www小视频 | 久久久亚洲精品视频 |