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Butterfly cushion check valve
Butterfly buffer check valve is mainly used for industrial water supply, sewage treatment plants pump outlet, to prevent counter current pipe network, automatic destructive water hammer to ensure that pumps and pipe from damage.
1. Butterfly cushion check valve body shape is small, light weight.
2. Butterfly buffer check valve slow closing system performance is excellent, not affected by the medium in the pipeline, the valve flap closed after the first speed slow to prevent breaking water hammer.
3. Butterfly cushion check valve rubber soft seal, closed performance, wear resistance, long service life.
4. Butterfly buffer check valve rubber buffer, opening and closing smooth, no vibration, no noise.
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公称通径DN(mm)
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200～2000
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公称压力PN(MPa)
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1.0～2.5
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公称压力Ps(MPa)
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强度试验
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1.5～3.75
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密封试验
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1.1～2.75
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主要 零件
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阀体
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灰铸铁、球墨铸铁、碳钢
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阀板
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灰铸铁、球墨铸铁、碳钢
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阀杆、活塞
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碳钢、不锈钢
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阀座
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NBR
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|
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缓闭时间
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3-90S
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连接形式
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法兰式
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连接尺寸
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|||
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公称通径DN
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L
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H
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B
|
|
200
|
230
|
550
|
540
|
|
250
|
250
|
630
|
600
|
|
300
|
270
|
690
|
650
|
|
350
|
290
|
780
|
710
|
|
400
|
310
|
860
|
770
|
|
450
|
330
|
910
|
830
|
|
500
|
350
|
980
|
900
|
|
600
|
390
|
1070
|
1090
|
|
700
|
430
|
1220
|
1200
|
|
800
|
470
|
1320
|
1320
|
|
900
|
510
|
1430
|
1420
|
|
1000
|
550
|
1550
|
1550
|
|
1200
|
630
|
1800
|
1780
|
|
1400
|
710
|
1980
|
2000
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Butterfly cushion check valve
Butterfly buffer check valve is mainly used for industrial water supply, sewage treatment plants pump outlet, to prevent counter current pipe network, automatic destructive water hammer to ensure that pumps and pipe from damage.
