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- K23JSD-25
- K23JSD-L25/T
- K23JSD-20
- K23JSD-15
- K23JSD-10
- K23JSD-L40/T
- K23JSD-L32/T
- K23JSD-L20/T
- K23JSD-L15/T
- K23JSD-32
- K23JSD-L10/T
- K23JSD-L40
- K23JSD-L32
- K23JSD-L10
- K23JSD-L20
- K23JSD-L15
- K23JSD-L25
- K23JSD-40
- K23JD-25W
- K23JD-15W
- K23JD-25TW
- K23JD-8TW
- K23JD-40W
- K23JD-15TW
- K23JD-32W
- K23JD-10TW
- K23JD-20W
- K23JD-20TW
- K23JD-10W
- K23JD-32TW
- K23JD-8W
- K23JD-40TW
- 供應(yīng)K22JK-40W
- 供應(yīng)K22JK-32W
- 供應(yīng)K22JK-25W
- 供應(yīng)K22JK-20W
- 供應(yīng)K22JK-15W
- 供應(yīng)K22JK-10W
- 供應(yīng)K22JK-8W
- 供應(yīng)K22JD-40W
- 供應(yīng)K22JD-32W
- 供應(yīng)K22JD-25W
- 供應(yīng)K22JD-20W
- 供應(yīng)K22JD-15W
- 供應(yīng)K22JD-10W
- 供應(yīng)K22JD-8W
- 供應(yīng)K25JK-40W
- 供應(yīng)K25JK-32W
- 供應(yīng)K25JK-25W
- 供應(yīng)K25JK-20W
- 供應(yīng)K25JK-15W
- 供應(yīng)K25JK-10W
- 供應(yīng)K25JK-8W
- 供應(yīng)K25JD-40W
- 供應(yīng)K25JD-32W
- 供應(yīng)K25JD-25W
- 供應(yīng)K25JD-20W
- 供應(yīng)K25JD-15W
- 供應(yīng)K25JD-10W
- 供應(yīng)K25JD-8W
- 供應(yīng)K23JK-8TW
- 供應(yīng)K23JK-10TW
- 供應(yīng)K23JK-15TW
- 供應(yīng)K23JK-20TW
- 供應(yīng)K23JK-25TW
- 供應(yīng)K23JK-32TW
- 供應(yīng)K23JK-40TW
- K23JK-40W
- K23JK-32W
- K23JK-25W
- K23JK-20W
- K23JK-15W
- K23JK-10W
- K23JK-8W
- K23JD-15S2T
- K23JD-10S2T
- K23JD-15S1T
- K23JD-10S1T
- K23JD-15ST
- K23JD-10ST
- K23JD-15S2
- K23JD-10S2
- K23JD-15S1
- K23JD-10S1
- K23JD-15S
- K23JD-10S
- K24JD-15S2
- K24JD-10S2
- K24JD-15S1
- K24JD-10S1
- K24JD-15S
- K24JD-10S
- 供應(yīng)K23JD-15S2T
- 供應(yīng)K23JD-10S2T
- 供應(yīng)K23JD-15S2
- 供應(yīng)K23JD-10S2
- 供應(yīng)K24JD-15S2
- 供應(yīng)K24JD-10S2
- 供應(yīng)K23JD-15ST
- 供應(yīng)K23JD-10ST
- 供應(yīng)K23JD-15S1T
- 供應(yīng)K23JD-10S1T
- 供應(yīng)K24JD-15S1
- 供應(yīng)K24JD-10S1
- 供應(yīng)K23JD-15S1
- 供應(yīng)K23JD-10S1
- 供應(yīng)K23JD-10S
- 供應(yīng)K25JK-40W
- 供應(yīng)K25JK-32W
- 供應(yīng)K25JK-25W
- 供應(yīng)K25JK-20W
- 供應(yīng)K25JK-15W
- 供應(yīng)K25JK-10W
- 供應(yīng)K25JK-8W
- 供應(yīng)K25JD-15W
- 供應(yīng)K25JD-20W
- 供應(yīng)K25JD-40W
- 供應(yīng)K25JD-32W
- 供應(yīng)K25JD-25W
- 供應(yīng)K25JD-10W
- 供應(yīng)K25JD-8W
- 供應(yīng)K23JK-40TW
- 供應(yīng)K23JK-32TW
- 供應(yīng)K23JK-25TW
- 供應(yīng)K23JK-20TW
- 供應(yīng)K23JK-15TW
- 供應(yīng)K23JK-10TW
- 供應(yīng)K23JK-8TW
- K23JK2-25
- K23JK2-20
- K23JK2-10
- K23JK2-8
- K23JK2-6
- K23JK2-25T
- K23JK2-20T
- K23JK2-15T
- K23JK2-10T
- K23JK2-8T
- K23JK2-6T
- K23JK-25T
- K23JK-15T
- K23JK-10T
- K23JK-8T
- K23JK-6T
- K23JK-25
- K23JK-20
- K23JK-15
- K23JK-8
- K23JK-6
- K23JD2-25T
- K23JD2-20T
- K23JD2-10T
- K23JD2-8T
- K23JD2-6T
- K23JD2-25
- K23JD2-20
- K23JD2-15
- K23JD2-10
- K23JD2-8
- K23JD2-6
- K23JD-25T
- K23JD-20T
- K23JD-10T
- K23JD-6T
- K23JD-25
- K23JD-20
- K23JD-15
- K23JD-10
- K23JD-8
- K23JD-6
- 供應(yīng)0955850
- 供應(yīng)0955705
- 供應(yīng)0955605
- 供應(yīng)0955505
- 供應(yīng)0955405
- 供應(yīng)0955305
- 供應(yīng)0955205
- 供應(yīng)0955105
- 供應(yīng)0927700
- 供應(yīng)0927600
- 供應(yīng)0927500
- 供應(yīng)0927400
- 供應(yīng)0927300
- 供應(yīng)0927200
- 供應(yīng)0927100
- 供應(yīng)0927000
- GAG430-3-5
- GAG430-3-4
- GAG430-2-5
- GAG430-2-4
- GAG330-2-2
- GAG330-2-1
- GAG330-1-2
- GAG330-1-1
- GAG410-3-2
- GAG410-3-1
- GAG410-2-2
- GAG410-2-1
- GAG310-2-2
- GAG310-2-1
- GAG310-1-2
- GAG310-1-1
- AG440-3-4
- AG440-3-3
- AG440-3-1
- AG440-2-4
- AG440-2-3
- AG440-2-1
- AG340-2-2
- AG340-2-1
- AG340-1-2
- AG340-1-1
- AG430-3-5
- AG430-3-4
- AG430-2-5
- AG430-2-4
- AG330-2-2
- AG330-2-1
- AG330-1-2
- AG330-1-1
- AG410-3-2
- AG410-3-1
- AG410-2-2
- AG410-2-1
- AG310-2-1
- AG310-1-2
- AG310-1-1
- GAB410-3-8(G1/2)
- GAB410-3-8
- GAB410-3-7
- GAB410-3-6
- GAB410-3-5
- GAB410-3-4
- GAB410-3-3
- GAB410-3-2
- GAB410-3-1
- GAB410-2-7
- GAB410-2-6
- GAB410-2-5
- GAB410-2-4
- GAB410-2-3
- GAB410-2-2
- GAB410-2-1
- GAB310-2-6
- GAB310-2-5
- GAB310-2-4
- GAB310-2-3
- GAB310-2-2
- GAB310-2-1
- GAB310-1-6
- GAB310-1-5
- GAB310-1-4
- GAB310-1-3
- GAB310-1-2
- GAB310-1-1
- AB410-3-8(G1/2)
- AB410-3-8
- AB410-3-7
- AB410-3-6
- AB410-3-5
- AB410-3-4
- AB410-3-3
- AB410-3-2
- AB410-3-1
- AB410-2-7
- AB410-2-6
- AB410-2-5
- AB410-2-4
- AB410-2-3
- AB410-2-2
- AB410-2-1
- AB310-2-6
- AB310-2-5
- AB310-2-4
- AB310-2-3
- AB310-2-2
- AB310-2-1
- AB310-1-6
- AB310-1-5
- AB310-1-4
- AB310-1-3
- AB310-1-2
- AB310-1-1
- K35D2H-40Y
- K35D2H-32Y
- K35D2H-25Y
- K35D2H-20Y
- K35D2H-15Y
- K35D2H-10Y
- K35D2H-8Y
- K35D2H-6Y
- K35D2H-40P
- K35D2H-32P
- K35D2H-25P
- K35D2H-20P
- K35D2H-15P
- K35D2H-10P
- K35D2H-8P
- K35D2H-6P
- K35D2H-40
- K35D2H-32
- K35D2H-25
- K35D2H-20
- K35D2H-15
- K35D2H-10
- K35D2H-8
- K35D2H-6
- AC5000-L25
- AC5000-L20
- AC4000-L20
- AC4000-L15
- AC4000-L10
- AC3000-L10
- AC3000-L8
- AC2000-L8
- AC2000-L6
- AC5000-10
- AC5000-06
- AC4000-06
- AC4000-04
- AC4000-03
- AC3000-03
- AC3000-02
- AC2000-02
- AC2000-01
- QIU-G2
- QIU-G1/1/2
- QIU-G1
- QIU-G3/4
- QIU-G1/2
- QIU-G3/8
- QIU-G1/4
- QIU-50
- QIU-L40
- QIU-L25
- QIU-L20
- QIU-L15
- QIU-L10
- QIU-L8
- AC5010-L25
- AC5010-L20
- AC4010-L20
- AC4010-L15
- AC4010-L10
- AC3010-L10
- AC3010-L8
- AC2010-L8
- AC2010-L6
- AC5010-10
- AC5010-06
- AC4010-06
- AC4010-04
- AC4010-03
- AC3010-03
- AC3010-02
- AC2010-02
- AC2010-01
- 供應(yīng)KA-L8
- 供應(yīng)KA-L6
- 供應(yīng)KA-L50
- 供應(yīng)KA-L40
- 供應(yīng)KA-L32
- 供應(yīng)KA-L25
- 供應(yīng)KA-L20
- 供應(yīng)KA-L15
- 供應(yīng)KA-L10
- K23JK-40TW
- K23JK-32TW
- K23JK-25TW
- K23JK-20TW
- K23JK-15TW
- K23JK-10TW
- K23JK-8WT
- K23JK-40W
- K23JK-32W
- K23JK-25W
- K23JK-20W
- K23JK-15W
- K23JK-10W
- K23JK-8W
- K23JD-40TW
- K23JD-32TW
- K23JD-25TW
- K23JD-20TW
- K23JD-15TW
- K23JD-10TW
- K23JD-8TW
- K23JD-40W
- K23JD-32W
- K23JD-25W
- K23JD-20W
- K23JD-10W
- K23JD-15W
- K23JD-8W
- K23JD2-25T
- K23JD2-20T
- K23JD2-15T
- K23JD2-10T
- K23JD2-8T
- K23JD2-6T
- K23JD2-25
- K23JD2-20
- K23JD2-15
- K23JD2-10
- K23JD2-8
- K23JK2-25T
- K23JK2-20T
- K23JK2-15T
- K23JK2-10T
- K23JK2-8T
- K23JK2-6T
- K23JK2-25
- K23JK2-20
- K23JK2-15
- K23JK2-10
- K23JK2-8
- K23JK2-6
- K23JD-25T
- K23JD-20T
- K23JD-15T
- K23JD-10T
- K23JD-8T
- K23JD-6T
- K23JD-25
- K23JD-20
- K23JD-15
- K23JD-10
- K23JD-8
- K23JD-6
- K23JK-25T
- K23JK-20T
- K23JK-15T
- K23JK-10T
- K23JK-8T
- K23JK-6T
- K23JK-25
- K23JK-20
- K23JK-15
- K23JK-10
- K23JK-8
- K23JK-6
- K25JK2-25
- K25JK2-20
- K25JK2-15
- K25JK2-10
- K25JK2-8
- K25JK2-6
- K25JK-25
- K25JK-20
- K25JK-15
- K25JK-10
- K25JK-8
- K25JK-6
- K25K2-25
- K25K2-20
- K25K2-40
- K25K2-32
- K25K2-15
- K25K2-10
- K25K2-8
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- K25K-40
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- K25K-25
- K25K-20
- K25K-15
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- K23JK2-6T
- K23JK2-25
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- K23JK2-20
- K23JK2-10T
- K23JK2-15
- K23JK2-15T
- K23JK2-10
- K23JK2-20T
- K23JK2-8
- K23JK2-25T
- K23JK2-6
- Q34R8-G3/4
- Q34R8-G1/2
- Q34R8-G3/8
- Q34R8-G1/4
- Q34R8-G1/8
- Q24R8-G3/4
- Q24R8-G1/2
- Q24R8-G3/8
- Q24R8-G1/4
- Q24R8-G1/8
- 2SH020-10
- 2SH012-08
- 2SH012-06
- 2S040-10
- 2S025-08
- 2WH020-10
- 2WH012-08
- 2WH012-06
- 2W040-10
- 2W025-08
- 2W025-06
- K35K2-6P
- K35K2-8P
- K35K2-10P
- K35K2-15P
- K35K2-20P
- K35K2-25P
- K35K2-32P
- K35K2-40P
- K35K2-6Y
- K35K2-40
- K35K2-8Y
- K35K2-32
- K35K2-10Y
- K35K2-25
- K35K2-15Y
- K35K2-20
- K35K2-20Y
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- K35K2-8
- K35K2-40Y
- K35K2-6
- 2S500-50
- 2S400-40
- 2S350-35
- 2S250-25
- 2S200-20
- 2S160-15
- 2S160-10
- 2W500-50
- 2W400-40
- 2W350-35
- 2W250-25
- 2W200-20
- 2W160-15
- 2W160-10
- K23JK2-25T
- K23JK2-20T
- K23JK2-15T
- K23JK2-10T
- K23JK2-8T
- K23JK2-6T
- K23JK2-25
- K23JK2-20
- K23JK2-15
- K23JK2-10
- K23JK2-8
- K23JK2-6
- K23JK-25T
- K23JK-20T
- K23JK-15T
- K23JK-10T
- K23JK-8T
- K23JK-6T
- K23JK-25
- K23JK-20
- K23JK-15
- K23JK-10
- K23JK-8
- K23JK-6
- Q24Q2H-40
- Q24Q2H-32
- Q24Q2H-25
- Q24Q2H-20
- Q24Q2H-15
- Q24Q2H-10
- Q24Q2H-8
- Q24Q2H-6
- Q24QH-40
- Q24QH-32
- Q24QH-25
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- K25JD2-50BW
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- K25JD-25BW
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- K25JD-10BW
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- 供應(yīng)K23D-3-L
- 供應(yīng)K23D-2-L
- 供應(yīng)K23D-1.2-L
- 供應(yīng)K23D-3B
- 供應(yīng)K23D-2-B
- 供應(yīng)K23D-1.2-B
- 10-SR-45
- 10-SR-60
- 10-SR-80
- 10-SR-85
- 10-SR-105
- 10-SR-125
- 10-SR-145
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- 10-SR-270
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- 10-SR-400
- 10-DA-400
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- 10-DA-300
- 10-DA-270
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- 10-DA-145
- 10-DA-125
- 10-DA-105
- 10-DA-85
- 10-DA-60
- 10-DA-45
- AW5000-L25
- AW5000-L20
- AW4000-L20
- AW4000-L15
- AW4000-L10
- AW3000-L10
- AW3000-L8
- AW2000-L8
- AW2000-L6
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- AW5000-06
- AW4000-06
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- AR3000-L8
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- AR2000-L6
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- AR4000-04
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- AR2000-02
- AR2000-01
- 3A220-08
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- AF5000-L25
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- Q24Q2H-40
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- Q24Q2H-25
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- Q24Q2H-15
- Q24Q2H-10
- Q24Q2H-8
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- Q24QH-25
- Q24QH-20
- Q24QH-15
- Q24QH-10
- Q24QH-8
- Q24QH-6
- Q24D2H-40
- Q24D2H-32
- Q24D2H-25
- Q24D2H-15
- Q24D2H-10
- Q24D2H-8
- Q24D2H-6
- Q24DH-40
- Q24DH-32
- Q24DH-25
- Q24DH-20
- Q24DH-15
- Q24DH-10
- Q24DH-8
- Q24DH-6
- QGS/320氣缸連接件
- QGS/250氣缸連接件
- QGS/200氣缸連接件
- QGS/160氣缸連接件
- QGS/125氣缸連接件
- QGS/100氣缸連接件
- QGS/80氣缸連接件
- QGS/63氣缸連接件
- QGS/50氣缸連接件
- QGS/40氣缸連接件
- QGS/32氣缸連接件
- 4A430-15B
- 4A420-15B
- 4A410-15B
- 4V420-15B
- 4V410-15B
- 3A420-15
- 3A410-15
- 3V420-15
- 3V410-15
- 4A430-15
- 4A420-15
- 4A410-15
- 4V430-15
- 4V420-15
- 4V410-15
- 3A320-10
- 3A320-08
- 3A310-10
- 3A310-08
- 3V320-10
- 3V320-08
- 3V310-10
- 3V310-08
- 4A330-10
- 4A330-08
- 4A320-08
- 4A320-06
- 4A310-10
- 4A310-08
- 4V330-10B
- 4V330-08B
- 4V320-10B
- 4V320-08B
- 4V310-10B
- 4V310-08B
- 4V330-10
- 4V330-08
- 4V320-10
- 4V320-08
- 4V310-10
- 4V310-08
- K35Q2-L15Y(中泄式)
- K35Q2-L10Y(中泄式)
- K35Q2-L8Y(中泄式)
- K35Q2-L6Y(中泄式)
- K35Q2-L4Y(中泄式)
- K35Q2-L15P(中壓式)
- K35Q2-L10P(中壓式)
- K35Q2-L8P(中壓式)
- K35Q2-L6P(中壓式)
- K35Q2-L4P(中壓式)
- K35Q2-L15(中封式)
- K35Q2-L10(中封式)
- K35Q2-L8(中封式)
- K35Q2-L6(中封式)
- K35Q2-L4(中封式)
- 3K25Q2-B15(雙氣控)
- 3K25Q2-B10(雙氣控)
- 3K25Q2-B8(雙氣控)
- 3K25Q2-B6(雙氣控)
- 3K25Q2-B4(雙氣控)
- 3K25Q-B15(單氣控)
- 3K25Q-B10(單氣控)
- 3K25Q-B8(單氣控)
- 3K25Q-B6(單氣控)
- 3K25Q-B4(單氣控)
- K23JK-40TBW
- K23JK-32TBW
- K23JK-25TBW
- K23JK-20TBW
- K23JK-15TBW
- K23JK-10TBW
- K23JK-8TBW
- K23JK-40BW
- K23JK-32BW
- K23JK-25BW
- K23JK-20BW
- K23JK-15BW
- K23JK-10BW
- K23JK-8BW
- K23JD-40TBW
- K23JD-32TBW
- K23JD-25TBW
- K23JD-20TBW
- K23JD-15TBW
- K23JD-10TBW
- K23JD-8TBW
- K23JD-40BW
- K23JD-32BW
- K23JD-15BW
- K23JD-10BW
- K23JD-8BW
- 3K35D2-B10Y(中泄式)
- 3K35D2-B8Y(中泄式)
- 3K35D2-B6Y(中泄式)
- 3K35D2-B4Y(中泄式)
- 3K35D2-B15P(中壓式)
- 3K35D2-B10P(中壓式)
- 3K35D2-B8P(中壓式)
- 3K35D2-B6P(中壓式)
- 3K35D2-B4P(中壓式)
- 3K35D2-B15(中封式)
- 3K35D2-B10(中封式)
- 3K35D2-B8(中封式)
- 3K35D2-B6(中封式)
- 3K35D2-B4(中封式)
- 3K25D2-B15(雙電控)
- 3K25D2-B10(雙電控)
- 3K25D2-B8(雙電控)
- 3K25D2-B4(雙電控)
- 3K25D-B15
- 3K25D-B10
- 3K25D-B8
- 3K25D-B6
- 3K25D2-L4
- 3K25D-B4
- 3K35D2-B15Y（中泄式）
- 3K35Q2-L10Y(中泄式)
- 3K35Q2-L8Y(中泄式)
- 3K35Q2-L6Y(中泄式)
- 3K35Q2-L4Y(中泄式)
- 3K35Q2-L10P(中壓式)
- 3K35Q2-L8P(中壓式)
- 3K35Q2-L6P(中壓式)
- 3K35Q2-L4P(中壓式)
- 3K35Q2-L10(中封式)
- 3K35Q2-L8(中封式)
- 3K35Q2-L6(中封式)
- 3K35Q2-L4(中封式)
- 3K25Q2-L10
- 3K25Q2-L8
- 3K25Q2-L6
- 3K25Q2-L4
- 3K25Q-L10
- 3K25Q-L8
- 3K25Q-L6
- 3K25Q-L4
- 3K25Q-B4
- JC3K-L10(集成電控換向閥)
- 3K25Q-B6
- JC3K-L8(集成電控換向閥)
- JC3K-L6(集成電控換向閥)
- 3K25Q-B10
- JC3K-L4(集成電控換向閥)
- 3K25Q-B15
- 3K35D2-L10Y(中泄式)
- 3K35D2-L8Y(中泄式)
- 3K25Q2-B6
- 3K35D2-L6Y(中泄式)
- 3K25Q2-B8
- 3K35D2-L4Y(中泄式)
- 3K25Q2-B10
- 3K35D2-L10P(中泄式)
- 3K35Q2-B4
- 3K35D2-L8P(中壓式)
- 3K35Q2-B6
- 3K35D2-L6P(中壓式)
- 3K35Q2-B8
- 3K35D2-L4P(中壓式)
- 3K35Q2-B10
- 3K35D2-L10(中封式)
- 3K35Q2-B15
- 3K35D2-L8(中封式)
- 3K35Q2-B4P
- 3K35D2-L6 (中封式)
- 3K35Q2-B6P
- 3K35D2-L4 (中封式)
- 3K35Q2-B8P
- 3K252D-L10
- 3K35Q2-B10P
- 3K252D-L8
- 3K35Q2-B15P
- 3K252D-L6
- 3K35Q2-B4Y
- 3K252D-L4
- 3K35Q2-B6Y
- 3K25D-L10
- 3K35Q2-B8Y
- 3K25D-L8
- 3K35Q2-B10Y
- 3K25D-L6
- 3K25D2-L6
- 3K25D2-L8
- 3K25D2-L10
- 3K35D2-L4P
- 3K35D2-L6P
- 3K35Q2-B15Y
- 3K25D-L4
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郵編：214021
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傳真：0510-85744800
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留言：發(fā)送留言
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技術(shù)文章
二位三通，二位五通截止閥原理K25JD-25W.K23JD-25W
點擊次數(shù)：1831 發(fā)布時間：2009-4-26
: 截止閥的啟閉件是塞形的閥瓣,密封面呈平面或錐面,閥瓣沿流體的中心線作直線運動。閥桿的運動形式,有升降桿式（閥桿升降,手輪不升降）,也有升降旋轉(zhuǎn)桿式（手輪與閥桿一起旋轉(zhuǎn)升降,...
K23JD-10W.K23JD-15W.K23JD-25W.K25JD-10W.K25JD-15W.K25JD-25W截止閥屬于強制密封式閥門，所以在閥門關(guān)閉時，必須向閥瓣施加壓力，以強制密封面不泄漏。當介質(zhì)由閥瓣下方進入閥六時K23JD-10W.K23JD-15W.K23JD-25W.K25JD-10W.K25JD-15W.K25JD-25W，操作力所需要克服的阻力，是閥桿和填料的磨擦力與由介質(zhì)的壓力所產(chǎn)生的推力，關(guān)閥門的力比開閥門K23JD-10W.K23JD-15W.K23JD-25W.K25JD-10W.K25JD-15W.K25JD-25W的力大，所以閥桿的直徑要大，否則會發(fā)生閥桿頂彎的故障。近年來，從自密封的閥門出現(xiàn)后，K23JD-10W.K23JD-15W.K23JD-25W.K25JD-10W.K25JD-15W.K25JD-25W截止閥的介質(zhì)流向就改由閥瓣上方進入閥腔，這時在介質(zhì)壓力作用下，關(guān)閥門的力小，而開閥門的力大，閥桿的直徑可以相應(yīng)地減少。K23JD-10W.K23JD-15W.K23JD-25W.K25JD-10W.K25JD-15W.K25JD-25W同時，在介質(zhì)作用下，這種形式的閥門也較嚴密。我國閥門“三化給”曾規(guī)定，截止閥的流向，一律采用自上而下。
K23JD-10W.K23JD-15W.K23JD-25W.K25JD-10W.K25JD-15W.K25JD-25W截止閥開啟時，閥瓣的開啟高度，為公稱直徑的25%～30%時，流量已達到zui大，表示閥門已達全開位置。所以截止閥的全開位置，應(yīng)由閥瓣的行程來決定。
K23JD-10W.K23JD-15W.K23JD-25W.K25JD-10W.K25JD-15W.K25JD-25W截止閥，也叫截門，是使用zui廣泛的一種閥門，它之所以廣受歡迎，是由于開閉過程中密封面之間摩擦力小，比較耐用，開啟高度不大，制造容易，維修方便，不僅適用于中 低壓，而且適用于高壓。
K23JD-10W.K23JD-15W.K23JD-25W.K25JD-10W.K25JD-15W.K25JD-25W截止閥的閉合原理是，依靠閥杠壓力，使閥瓣密封面與閥座密封面緊密貼合，阻止介質(zhì)流通。
K23JD-10W.K23JD-15W.K23JD-25W.K25JD-10W.K25JD-15W.K25JD-25W截止閥只許介質(zhì)單向流動，安裝時有方向性。截止閥的結(jié)構(gòu) 長度大于閘閥，同時流體阻力大，*運行時，密封可靠性 不強。