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球墨铸铁双口法兰排气阀 QB2-16Q

  • Product Model:QB2-16Q
  • Valve Body Material:Ductile Iron
  • Nominal Pressure:≤1.6Mpa
  • Applicable Media:Qingshui (place name)
  • Applicable Temperature:≤80°C
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QB2双口快速排气阀主要由阀体、阀门、上盖、阀杆、浮球、排气嘴等组成。适用于温度不超过80℃的水、热水管道上使管道内的空气全部排出。当需要排出管道内的气体时,应逆时针方向旋转阀杆,使其阀杆连同阀门上升,使管道内的空气在水的压强作用下进入体腔内,并从排气嘴排出,随之管道内的水充满体腔内,使浮球在水的浮力作用下,向上移动将排气嘴堵塞,达到自行密封,管道在正常行中,水中的空气在压强的作用下,不断排入排气阀的体腔上部,迫使浮球下降,离开原来密封位置,这时空气又从排气嘴排出,随之,浮球又恢复到原来位置自密封,因此,排气阀在正常工作中阀门始终是开着的,浮球不断重复上述动作,空气不断排出,当需要检修或清扫体腔时,应将阀门关闭。本排气阀,顺时针旋转阀杆时为关闭。

Working Principle

当管内开始注水时,塞头停留在开启位置,进行大量排气,当空气排完时,阀内积水,浮球被浮起,传动塞头至关闭位置,停止大量排气,当管内水正常输送时,如有小量空气聚集在阀内到相当程度,阀内水位下降,浮球随之下降,此时空气由小孔排出,当抽水机停止,管内水流空时或遇管内产生负压时,此时塞头迅速开启,吸入空气,确保管线完全。

Product Features

  1. 能够排除管道中的气体,减少阻力节约能源。
  2. 当管道负压时,本产品能快速自动吸入空气防止管道破裂。
  3. 排气能力是普通双孔排气阀多倍。
  4. 浮球托架为不锈钢,使用寿命长,安全可靠。

Product Parameters

Product Model

QB2-16Q

Valve body material

Ductile Iron

Nominal pressure

≤1.6Mpa

Applicable medium

Qingshui (place name)

Applicable temperature

≤80°C

每小时排气量

norm

m³/h

DN50

4-173

DN80

85-352

DN100

14-597

DN150

22-904

DN200

27-1145

Product Size Reference

Nominal Diameter

D

D1

L

H

Z-Φd

DN50

160

125

345

315

4-Φ18

DN80

195

160

345

315

8-Φ18

DN100

215

180

345

315

8-Φ18

DN150

280

240

475

380

8-Φ23

DN200

335

295

475

420

12-Φ23

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Stable Quality

Implement comprehensive quality control throughout the entire process, meticulously and thoroughly inspecting every detail!

Reasonably Priced

Highly efficient internal cost control has reduced expenses, passing the savings on to customers!

Prompt Delivery

Advanced production lines and ample inventory have shortened delivery times!

Step 1: Send the Purchase List

Please email the purchase list to bolaikong@163.com, Tel/WeChat: +86-13382208259, WhatsApp: +852-90445535.

Step 2:Provide Quotation and Model Selection

Upon receiving the customer's purchase list, our company will provide valve quotations「price list」and selection 「valve model」 services.

Step 3:Finalize the Details

Specific arrangements to be finalized:Confirmation of delivery schedule, special requirements, and other details.

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