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

Slow-closing micro-resistance check valve

Products > Hydraulic control valve > Slow-closing micro-resistance check valve

Slow-closing micro-resistance check valve

Model: HH44X
Nominal pressure: PN1.0 ~ 2.5MPa
Nominal diameter: DN40 ~ 800mm
Suitable medium: water, weak corrosive liquids
Suitable temperature: 0 ~ 80 ℃ (if necessary, up to 200 ℃)
Flange Standard: GB / T 17241.6 GB / T 9113
Test standard: GB / T 13927 AP1598
Contact purchase
shared:

HH44X micro-resistance slow closing check valve product overview

The micro-resistance slow closing check valve is used for water supply and drainage pipe, which is installed at the outlet of the water pump to prevent the countercurrent of the medium and eliminate the destructive water hammer, and effectively reduce the water hammer pressure of the valve to close to ensure the safe operation of the pipe network. The utility model has the advantages of light valve flap, large opening degree, remarkable energy saving effect, small fluid resistance, novel design of a water hammer eliminating mechanism, stable and reliable sealing performance, wear resistance, long service life, stable operation, no vibration and no noise.

 

HH44X micro-slow slow closing check valve main components and materials 

Part Name

Body, bonnet

Disc

Valve shaft

material

Gray cast iron, cast steel

Steel plate, rubber assembly

stainless steel

 

HH44X micro-resistance slow closing check valve main shape connection size                                       

DN (mm)

40

50

65

80

100

125

150

200

250

300

350

400

450

500

600

700

800

H

200

230

290

310

350

400

480

500

600

700

800

900

1000

1100

1300

1400

1500

L

300

300

320

354

350

380

500

580

670

730

820

920

950

1100

1200

1550

1700

B

220

270

290

300

320

340

410

450

550

580

630

700

800

900

990

1120

1300


成年美女黄网站色大免费视频| 亚洲aⅴ在线无码播放毛片一线天| 精品国产一区二区三区久久| 精品熟女少妇av免费久久| 精品国产一二三产品价格| 日本xxxx在线| 亚洲国产欧美日韩第一香蕉| 又粗又长又爽又大硬又黄| jlzz大全高潮多水老师| 国产视频福利在线| 两个人看的www在线观看| 日韩三级一区二区三区| 亚洲热线99精品视频| bl道具play珠串震珠强迫| 国产欧美日韩一区二区加勒比| 久久国产亚洲高清观看| 三级三级三级网站网址| 夜夜偷天天爽夜夜爱| 高潮插的我好爽再干噢在线欢看| 国产肉体xxxx裸体137大胆| 欧美一区二区三区成人片在线| 亚洲色大情网站www| 国产在线拍揄自揄拍无码| 欧美日韩在线视频免费完整| 亚洲欧美综合在线天堂| 国产无套中出学生姝| 亚洲精品乱码久久久久66| 后入内射国产一区二区| 日韩欧群交p片内射中文| 国产成人永久免费视频| 两性色午夜免费视频| 99久久人妻精品免费二区| 黑人玩弄漂亮少妇高潮大叫| 亚洲欧洲日产国码久在线| 狠狠色丁香婷婷综合潮喷| 伊人热热久久原色播放www| 老熟妇高潮一区二区三区| 阿娇囗交全套高清视频| 色综合a怡红院怡红院首页| h无遮挡男女激烈动态图| 强开小婷嫩苞又嫩又紧视频韩国|