v型球閥【廠 廠家 供應商】-山東達瑞科流體控制有限公司_贝拉电竞

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v型球閥

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v型球閥

  • 所屬分類:球閥

  • 點擊次數:
  • 發布日期:2018/04/25
  • 規格:
  • 類型:
  • 在線詢價
  • 詳細介紹

産品概述

燰型球閥屬于固定球閥,也是單閥座密封球閥,它的V型切口與金屬閥座之間具有剪切作用,閥芯的邊緣呈V字型,球體上有一個V形開口,随着球的旋轉,可使用中間開度面積的變化進行流量調節,調節性能是球閥中最佳的,流量特性是等百分比的,可調比達100:1。并可切斷流體中夾雜的雜質而關閉,特别适合含纖維、微小固體顆粒、料漿等介質。


v型球閥最大允許洩漏量

規格

硬密封最大允許洩漏量

軟密封閥座最大允許洩漏量

DN25(1”)

1.50ml/min

0.15ml/min

DN32(1-1/4")

1.80ml/min

0.18ml/min

DN40(1-1/2")

2.40ml/min

0.24ml/min

DN50(2”)

3.00ml/min

0.30ml/min

DN65(2-1/2")

3.90ml/min

0.39ml/min

DN80(3”)

4.80ml/min

0.48ml/min

DNl00(4”)

6.00ml/min

0.60ml/min

DN125(5”)

7.50ml/min

0.75ml/min

DN150(6”)

9.00ml/min

0.90ml/min

DN200(8")

12.00ml/min

1.20ml/min

DN250(10”)

15.00ml/min

1.50ml/min

DN300(12”)

18.00ml/min

1.80ml/min

DN350(14”)

21.00ml/min

2.10ml/min

DN400(16”)

24.00ml/min

2.40ml/min

DN450(18”)

26.00ml/min

2.60ml/min

DN500(20”)

30.00ml/min

3.00ml/min


v型球閥外形尺寸

DN

L

B

H

C

D

D1

25

168

108

163

120

36

85

32

168

108

168

120

36

85

40

204

129

170

130

46

85

50

262

137

180

130

50

85

65

262

137

195

130

50

85

80

268

153

210

145

56

90

100

268

153

220

145

56

102

125

300

175

235

160

68

97

150

390

192

270

160

75

129

200

460

217

300

175

87

123

250

525

260

375

195

103

149

300

600

319

420

220


148

350

720

356

500

250


179

400

740

378

550

260


180

450

740

378

650

260


230

500

860

432

720

260


280


閥門的安裝與維護:

1、閥門安裝:

  (1)安裝前須檢查産品型号、位号及規格是否吻合,檢查整機零件是否缺損與松動。

  (2)在安裝前,對管道應進行清洗,閥門入口處要有足夠的直管段,并配有過濾器。閥體與管道的法蘭連接,要注意同軸度。

  (3)閥門安裝前,應先徹底清洗管道。

  (4)安裝場地應考慮到人員設備的安全,既便于操作,又有利于拆裝與維護。

  (5)閥門應正立垂直安裝在水平管道上,不得已時可傾斜安裝,盡量避免水平安裝,閥自重量較大或有振動的場合,要用支撐架。

  (6)介質流動方向應與閥體上的箭頭指向一緻。氣源應幹燥、無油。閥門應在環境溫度-20~55℃場所使用。 

2、閥門維護:

  (1)清洗閥門:對清洗一般介質,隻要用水洗淨就可以。但對清洗有害健康的介質,首先要了解其性質,再選用相應的清洗辦法。

  (2)閥門的拆卸:将外露表面生鏽的零件先除鏽,但在除鏽前,要保護好閥座、閥芯、閥杆與推杆等精密零件的加工表面。拆裝閥座時應使用專用工具。

  (3)閥座:密封面有較小的鏽斑與磨損,可用機械加工的方法進行,如損壞嚴重必須換新。但不管修理或更換後的硬密封面,都必須進行研磨。

  (4)閥杆:表面損壞,隻能換新。

  (5)推杆、導向與密封表面的損壞:對反作用執行機構必須換新,而對正作用執行機構,可用适當的修理後使用。

  (6)壓縮彈簧:如有裂紋等影響強度的缺陷,必須換新。

  (7)易損零件:填料、密封墊片與O型圈,每次檢修時,全部換新。閥芯、膜片必須檢查是否有預示将來可能發生的裂紋、老化與腐蝕痕迹,根據檢查結果,決定是否更換,但膜片使用期一般最多2-3年。

       (8) 閥門組裝要注意對中,螺栓要在對角線上擰緊,滑動部分要加潤滑油。組裝後應按産品出廠測試項目與方法調試,并在這期間,可準确地調整填料壓緊力、閥芯關閉位置。


閥門訂貨須知:

訂貨時請填寫《規格書》或注明以下内容:

1、若訂貨前未選定型号,請向我們提供使用參數:

  (1)公稱通徑DN(mm);

  (2)公稱壓力(Mpa或bar);

  (3)流體性質(包括介質溫度、粘度或酸堿性);

  (4)閥前與閥後壓力(壓差);

  (5)流量特性要求;

  (6)閥體、閥芯材料;

  (7)連接形式;

  (8)驅動方式(提供氣源壓力、驅動電壓);

  (9)配套附件(氣動閥門建議用戶安裝空氣過濾器三聯件與二位五通電磁閥 );

  (10)現場工況。

2、 若已經由設計單位選定我公司的産品型号,請按型号直接向我司生産部訂購; 

3、 當使用的場合非常重要或管路比較複雜時,請您盡量提供設計圖紙和詳細參數,由我們的專家為您審核把關。


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