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491 In-Line Swivel Union

491 In-Line Swivel Union
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In-Line Swivel Coupling 12 Flameproof Exd / Increased Safety Exe Dual Certified ATEX / IECEx 490 (M to F) Swivel In-Line Union with Lockstop 491 (M to F) Swivel In-Line Union Certification Details Certification Details General Information General Information • Increased Safety & Flameproof Exe IMb, Exd IMb, Exe IIC Gb, Exd IIC Gb, Extb IIIC Db, IM2 / II 2GD. • Certificate No's: Sira 11ATEX1347U and IECEx SIR 11.0152U. • Operating Temperature Range -60°C to +100°C. • Group I, II and III. • Increased Safety & Flameproof Exe IMb, Exd IMb, Exe IIC Gb, Exd IIC Gb, Extb IIIC Db, IM2 / II 2GD. • Certificate No's: Sira 11ATEX1347U and IECEx SIR 11.0152U. • Operating Temperature Range -60°C to +100°C. • Group I, II and III. • Manufactured in Brass, Nickel Plated Brass, Steel, Nickel Plated Steel and Stainless Steel. • M16 to M75 as standard. • Other parallel male thread options available on request, including BSPP, PG, ET and NPSM. • NPT female threads can also be supplied in sizes ranging from ½" to 3". • Suitable for use in Zone 1, Zone 2, Zone 21, Zone 22 and mining applications. • Construction and Test Standards: IEC/EN 60079-0, IEC/EN 60079-1 IEC/EN 60079-7 and IEC/EN 60079-31. • Integral Silicone O Ring seal. • Ingress Protection: IP66. • Assembly Instruction Sheet: AI 416. • Manufactured in Brass, Nickel Plated Brass, Steel, Nickel Plated Steel and Stainless Steel. • M16 to M75 as standard. • Other thread options available on request, including BSPP, PG, ET, NPSM and NPT. • NPT female threads can also be supplied in sizes ranging from ½" to 3". • Suitable for use in Zone 1, Zone 2, Zone 21, Zone 22 and mining applications. • Construction and Test Standards: IEC/EN 60079-0, IEC/EN 60079-1 IEC/EN 60079-7 and IEC/EN 60079-31. • Integral Silicone O Ring seal. • Ingress Protection: IP66. • Assembly Instruction Sheet: AI 417. SELECTION TABLE Male Thread Size Female Thread Size Ordering Example: Always state the male thread first Thread Size Pitch Material Finish M32 Male x M32 Female 1.5 mm Brass Nickel Plated Thread Typical Typical Length A/F (mm) A/C (mm) (mm) 'E' 'F' Ordering Example: Product 491 Note: Different thread sizes and types are permitted at each end of the elbow, a step of one thread size is permitted between the two threads. Where different thread types / sizes are supplied, the overall dimensions of the inline swivel may increase in size. Always state the male thread first Thread Size Pitch Material Finish M32 Male x M32 Female 1.5 mm Brass N

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