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Duo-Chek® II
高性能止回阀
High Performance
Check Valves		 安装尺寸
Installation Dimensions
美国克雷恩阀门公司
尺寸 [英寸 (毫米)] 和 重量 [磅 (公斤)]
Dimensions [in (mm)] and Weights [lbs (kg)]
阀门
通径
Valve
Size		 A B C D E F G H J K 重量
Weight
2
(50)		 6.25
(158.75)		 4.00
(101.60)		 3.31
(84.14)		 2.62
(66.68)		 2.06
(52.39)		 4.75
(120.65)		 0.69
(17.46)		 1.12
(47.63)		 1.88
(47.63)		 2.12
(53.98)		 5
(2.27)
21/2
(65)		 7.00
(177.80)		 4.75
(120.65)		 3.88
(98.43)		 3.12
(79.38)		 2.06
(52.39)		 5.50
(139.70)		 0.69
(17.46)		 1.44
(36.51)		 2.31
(58.74)		 2.12
(53.98)		 6
(2.72)
3
(80)		 7.50
(190.50)		 5.25
(133.35)		 4.56
(115.89)		 3.62
(92.08)		 2.06
(52.39)		 6.00
(152.40)		 0.69
(17.46)		 1.62
(41.28)		 2.75
(69.85)		 2.12
(53.98)		 8
(3.63)
4
(100)		 9.25
(234.95)		 6.75
(171.45)		 5.62
(142.88)		 4.62
(117.48)		 2.44
(61.91)		 7.50
(190.50)		 0.69
(17.46)		 2.12
(53.98)		 3.44
(87.31)		 2.50
(63.50)		 15
(6.81)
5
(125)		 10.62
(269.88)		 7.62
(193.68)		 6.75
(171.45)		 5.69
(144.46)		 2.56
(19.05)		 8.50
(215.90)		 0.81
(20.64)		 0.81
(20.64)		 4.44
(112.71)		 2.62
(66.68)		 20
(9.08)
6
(150)		 12.00
(304.80)		 8.75
(222.25)		 7.88
(200.03)		 6.75
(171.45)		 3.06
(77.79)		 9.50
(241.30)		 0.81
(20.64)		 3.16
(80.17)		 5.56
(141.29)		 3.12
(79.38)		 26
(11.80)
8
(200)		 14.50
(368.30)		 10.62
(269.88)		 10.00
(254.00)		 8.75
(222.25)		 3.81
(96.84)		 11.75
(298.45)		 0.81
(20.64)		 4.16
(105.57)		 7.56
(192.09)		 3.88
(98.43)		 43
(19.52)
10
(250)		 16.88
(428.63)		 13.25
(336.55)		 12.12
(307.98)		 10.88
(276.23)		 3.94
(100.01)		 14.25
(361.95)		 0.94
(23.81)		 5.12
(130.18)		 9.06
(230.19)		 4.00
(101.60)		 58
26.33)
12
(300)		 19.450
(495.30)		 16.00
(406.40)		 14.38
(365.13)		 12.88
(327.03)		 5.06
(128.59)		 17.00
(431.80)		 0.94
(23.81)		 6.25
158.75)		 10.81
(274.64)		 5.12
(130.18)		 100
(45.40)
14
(350)		 22.50
(571.50)		 17.62
(447.68)		 15.62
(396.88)		 14.12
358.78)		 7.00
(177.80)		 18.75
(476.25)		 1.06
(26.99)		 6.75
(171.45)		 12.06
(306.39)		 7.12
(180.98)		 135
(61.29)
16
(400)		 24.88
(631.83)		 20.12
(511.18)		 17.75
(450.85)		 16.12
(409.58)		 6.25
(158.75)		 21.25
(539.75)		 1.06
(26.99)		 7.75
(196.85)		 14.00
(355.60)		 6.38
(161.93)		 170
(77.18)
18
(450)		 25.25
(641.35)		 21.50
(546.10)		 20.00
(508.00)		 18.12
(460.37)		 7.12
(180.97)		 22.75
(577.85)		 1.19
(30.16)		 8.75
(222.25)		 16.00
(406.14)		 7.25
(184.15)		 220
(99.88)
20
(500)		 27.50
(698.50)		 23.50
(596.90)		 21.88
(555.62)		 20.12
(511.17)		 8.38
(212.72)		 25.00
(635.00)		 1.19
(30.16)		 9.75
(247.65)		 18.12
(469.90)		 8.50
(215.90)		 287
(130.30)
24
(600)		 32.25
(819.15)		 28.12
(714.37)		 25.88
(657.22)		 24.12
(612.77)		 8.38
(212.72)		 29.50
(749.30)		 1.31
(33.34)		 11.75
(298.45)		 22.25
(565.15)		 8.50
(215.90)		 335
(152.09)
 


4孔
G直径
在F螺栓圆周上
4 HOLES
G. DIA. ON
F BOLT CIRCLE

注释：任何制造商的止回阀最好安装在泵排泄口或管道弯头下游5倍管道直径的位置。如果这是不可行的，那么阀门应该安装在下游尽可能远的地方。这个建议可以减少通过阀门的流体出现湍流的可能性，这种湍流会造成部件振动，从而缩短阀门的使用寿命。
Note: Preferred mounting of check valves of any manufacturer is 5 pipe diameters downstream from the pump discharge or pipe elbow. If this is not feasible, the valve should be mounted downstream as far as possible. This is recommended to reduce the likelihood of turbulent flow through the valve, which could shorten valve life due to component vibration.
 
材料清单
Bill of Materials
项目
Item		 说明
Description		 材料
Materials		 备选材料
Optional Materials
1* 阀体
Valve Body		 球墨铸铁
Ductile Iron		 没有备选材料
No option available
2* 衬里 (模铸在项目1上)
Liner (Molded to Item 1)		 丁纳橡胶或三元乙丙橡胶
Buna-N or EPDM		 氯丁橡胶，海帕伦，氟化橡胶
Neoprene, Hypalon, Viton
3 阀轴
Shaft		 316不锈钢
316 Stainless Steel		 蒙乃尔
Monel
4 阀轴塞(数量：2件)
Shaft Plug (Qty. 2)		 316不锈钢
316 Stainless Steel		 蒙乃尔
Monel
5 阀瓣(数量：2件)
Plate (Qty. 2)		 DN50：316不锈钢
DN65 - DN125：铝青铜
DN150 - DN600：球墨铸铁
2" 316 Stainless Steel
21/2 " -5" Aluminum Bronze
6"-24" Ductile Iron		 DN50 - DN300：蒙乃尔
DN65 - DN300：316不锈钢
DN150 - DN600：铝青铜
2"-12" Monel
21/2"-12" 316 Stainless Steel
6"-24" Aluminum Bronze
6 止推垫圈 (数量：4件)
Thrust Washer (Qty. 4)		 聚四氟乙烯
PTFE		 No option available
7 弹簧 (数量：2件)
Spring (Qty. 2)		 Nitronic 50 (DN50 - DN150)
316不锈钢(DN200 - DN600)
Nitronic 50 (2"-6")
316 Stainless Steel (8"-24")		 No option available
No option available
8 定位阀体
Alignment Body		 铸铁
Cast Iron		 No option available
9 固定螺丝
Set Screw		 碳钢
Carbon Steel		 No option available
10 阀瓣行程止动装置
Plate Travel Stop		 316不锈钢(DN350 - DN600)
316 Stainless Steel (14"-24")		 No option available

* 项目1和2必须一起订购。
材质如有变化，孰不另行通知。
* Items 1 and 2 must be ordered together.
Materials subject to change without notice.
首页Home＞Duo-Chek® II高性能止回阀 Duo-Chek® II High Performance Check Valves＞正文Text
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