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Serrated Washers
Accessories for cable glands, available in stainless steel
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Vendor: CMP Products

Description

‘Shake-proof’ serrated washers

Available in Stainless Steel, these ‘shake-proof’ Serrated Washers are fitted internally to the equipment before a locknut and act as an anti-vibration device to prevent the Cable Gland or accessory from inadvertently loosening in service.

Self-loosening should be avoided according to clause 6.4.1 of IEC 60079-14, this can occur through relative motion over time even without vibration, due to differential thermal effects caused as a result of either differences in temperature or differences in clamped materials.

Product Table

Metric

Metric Ordering Reference (Stainless Steel)Reference Diameter “"A”"Minimum ThicknessExternal Diameter "B”"NPT Ordering Reference (Stainless Steel)Reference Diameter “"A"”Minimum ThicknessExternal Diameter “"B”"
16SW4M163.925.5050NPTSW41/2"” NPT3.932.5
20SW4M203.932.5075NPTSW43/4”" NPT3.940.0
25SW4M253.940.0100NPTSW41"” NPT3.943.5
32SW4M323.943.5125NPTSW41 1/4"” NPT3.964.5
40SW4M403.964.5150NPTSW41 1/2”" NPT3.980.0
50SW4M503.980.0200NPTSW42"” NPT3.9100.0
63SW4M633.9100.0250NPTSW42 1/2"” NPT3.9112.0
75SW4M754.1112.0300NPTSW43"” NPT4.1135.0
90SW4M904.1135.0350NPTSW43 1/2"” NPT4.1145.0
100SW4M1004.1145.0----

Imperial

Metric Ordering Reference (Stainless Steel)Reference Diameter “"A"”Minimum ThicknessExternal Diameter "“B”"NPT Ordering Reference (Stainless Steel)Reference Diameter “"A"”Minimum ThicknessExternal Diameter “"B”"
16SW4M160.1541.004050NPTSW41/2”" NPT0.1541.28
20SW4M200.1541.28075NPTSW43/4”" NPT0.1541.575
25SW4M250.1541.575100NPTSW41"” NPT0.1541.713
32SW4M320.1541.713125NPTSW41 1/4"” NPT0.1542.539
40SW4M400.1542.539150NPTSW41 1/2"” NPT0.1543.15
50SW4M500.1543.15200NPTSW42"” NPT0.1543.937
63SW4M630.1543.937250NPTSW42 1/2"” NPT0.1544.409
75SW4M750.1614.409300NPTSW43"” NPT0.1615.315
90SW4M900.1615.315350NPTSW43 1/2"” NPT0.1615.709
100SW4M1000.1615.709----