Pipe Components 2011 - Van Leeuwen Buizen

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c. Mechanical Treatments Van Leeuwen can provide a wide range of mechanical treatments. Customized service for pipe components The treatments most often requested are: • Machining of gasket faces of RF flanges to flat face with a finish of Ra = 3.2–12.5 micrometers (= 125 – 500 microinches AARH) to ASME/ANSI B16.5a and B46.1–1985. • Machining of gasket faces of flanges to a finish of Ra = 4.0 - 6.3 micrometers (= 160 - 250 microinches AARH) to ANSI/ASME B46.1–1985. • Machining of gasket faces of flanges to a smooth finish of Ra = 3.2 - 6.3 micrometer (= 125 – 250 microinches AARH) according to Shell specification 76/001. Machining with a toolradius of 0.8 mm and a pitch of 0.35 - 0.45 mm. • Mechanical treatment of partially machined ANSI flanges, such as: internal drilling across the entire height to ASME/ANSI B16.5-1988 and B16.5a-1992 to a specified Schedule. Machining of the root/groove face to ASME/ANSI B16.5-1988 Fig. 8. Gasket face to be treated to the desired type. • Internal drilling of the bore of flanges across the entire height to ASME/ANSI B16.5–1988 and machining the root/groove face to ASME/ANSI B16.5–1988 Fig. 8. • Machining of DIN welding neck flanges with extra strong S-size: internal drilling across the entire height up to a specified wall thickness; machining the gasket face to a finish of Ra = 3.2 - 6.3 micrometers (= 125 - 250 microinches AARH); and machining the root/groove face to DIN 2559 part 1 05-1973 form 22. • Machining of DIN welding neck flanges with extra strong S-size: internal drilling across the entire height up to a specified wall thickness; machining of root/groove face to DIN 2559 part 1 05-1973 form 22. • Internal drilling of slip on flanges across the entire height to AMSE/ANSI B16.5-1988 to the internal diameter for lap joint. Machine the raised face to flat face with a Ra = 4.0 - 6.3 micrometers (= 160-250 microinches AARH). Create an inside radius on the flat face side of the flanges as indicated in ASME/ANSI B16.5-1988 for lap joint flanges. • Internal drilling of partially unfinished welding neck flanges (semi and solid) to ASME/ANSI B16.5-1988 to the internal diameter for lap joint. Machining of the gasket face to flat face with a Ra = 4.0 – 6.3 micrometers (= 160-250 microinches AARH). Create an inside radius on the flat face side of the flanges as indicated in ASME/ANSI B16.5-1988 for lap joint flanges. • Machining of welding neck flanges without bore (solid) to blind flanges. If requested, machining of the gasket face to “form B” as per DIN 2526. Remove the hub, smooth the flange and adjust the height as indicated in DIN 2527. • Machining of welding neck flanges without bore (solid and partially unfinished) to blind flanges. Machining of the gasket face to raised face or ring type joint. Remove the hub, smooth the flange and adjust the height as indicated in ASME/ANSI B16.5-1988 for blind flanges. • Internal drilling of welding neck flanges across the entire height to the dimensions as indicated in ASME/ANSI B16.5-1988 for slip on flanges. Apply or change the marking: by stamping the specified schedule size “XXX” on the flange edge. • Internal drilling across the entire height to ASME/ANSI B16.5-1988 to a specified schedule size. Machining of the bevel and the welding edge again to ASME/ANSI B16.5-1988 Fig. 8. Machining of the gasket face to large/small male, large/small female, large/small tongue or large/small groove to ASME/ANSI B16.5-1988 Fig. 7. Apply or change the marking: by stamping the specified schedule size “XXX”. • Machining of a threaded hole ½” NPT or ¾” NPT to ANSI B1.20.1-1983. After machining remove the metal chips and burrs from the threaded holes. No part of this publication may be multiplied or copied without previous written permission of Van Leeuwen Pipe and Tube 5
Customized service for pipe components • Internal drilling of welding neck flanges across the entire height to the dimensions as indicated in ASME/ANSI B16.5-1988 for socket weld flanges. Adjust the height to the dimensions as indicated in ASME/ANSI B16.5-1988 for socket weld flanges. Apply or change the marking: by stamping the new specified schedule size “XXX” on the flange edge and if applicable by stamping the old specified schedule size “XXX”. • Machining of the gasket face of DIN flanges to “Feder Form F” as per DIN 2512-1975 or of EN flanges to type C as per EN 1092-1. • Machining of the gasket face of DIN flanges to “Nut form N” as per DIN 2512-1975 or of EN flanges to type D as per EN 1092-1. • Machining of the gasket face of DIN flanges to “Male shape V13” or “Female shape R13” as per DIN 2513-1966 or of EN flanges to type E or F as per EN 1092-1. • Machining of gasket faces to a finish of Ra = 1.6 – 3.2 micrometers (= 63-125 microinches AARH) as per ASME/ ANSI B16.5-1985. • Machining of the gasket face of partially unfinished blind flanges as per the latest edition of ASME/ ANSI B16.5, section 6.4 Fig. 7 and table 5 (RTJ) or table 4 for other gasket face types. d. Hot-dipped galvanizing and Electrolytic zinc plating Hot dipped galvanizing involves immersing the material in a bath of liquid zinc. Once it solidifies, the zinc layer acquires a matte appearance. The advantage of hot dipping is that the inside and outside of the material are evenly galvanized. The thickness of the zinc layer depends on the thickness of the material to be galvanized. e. External Polyethylene Coating Pipes and pipe components can be given an external polyethylene (PE) coating to extend their service life. A coating like this is usally applied to pipes that are buried underground. The polyethylene is applied by hose or wrapping extrusion following the application of an epoxy primer base. Specifications: • PE coated to DIN 30670N/n or EN 6901/6902, standard layer thickness with epoxy base layer (3-layer coating) using the hose extrusion process • Color: standard is black; yellow is also available • Layer thickness in accordance with standard • If required, the KIWA mark can be applied (for delivery within the Netherlands) Additional options: • PE coating using the sintering method • External PE coating combined with internal cement lining 6 No part of this publication may be multiplied or copied without previous written permission of Van Leeuwen Pipe and Tube
Page 1 and 2: 90º D A s Pipe components European
Page 3 and 4: Delivery programme pipe components
Page 5: Customized service for pipe compone
Page 9 and 10: Customized service for pipe compone
Page 11 and 12: Technical information for pipe comp
Page 13 and 14: Product descriptions pipe component
Page 15 and 16: Product descriptions pipe component
Page 17 and 18: Elbows DIN / EN Art. no. D1 mm S1 m
Page 19 and 20: Elbows DIN / EN Art. no. D1 mm S1 m
Page 21 and 22: Table of dimensions elbows EN 10253
Page 23 and 24: Flanges DIN / EN blind Art. no. D1
Page 25 and 26: Flanges DIN / EN slip on Slip on co
Page 27 and 28: Flanges DIN / EN welding neck Art.
Page 33 and 34: Flanges DIN flat welding L and M Fl
Page 35 and 36: Flanges DIN / EN other Slip on flan
Page 37 and 38: DN Outside diam. Technical informat
Page 39 and 40: Technical information flanges EN 10
Page 45 and 46: Fittings DIN / EN Seamless branch b
Page 47 and 48: Fittings reducing DIN / EN Seamless
Page 49 and 50: Fittings reducing DIN / EN Seamless
Page 51 and 52: Fittings reducing DIN / EN Art. no.
Page 53 and 54: Table of dimensions reducers EN 102
Page 55 and 56: Forged steel fittings DIN / EN Forg
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Forged steel fittings DIN / EN Art.
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Forged steel fittings DIN / EN 58 N
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Product descriptions pipe component
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Elbows as per ASTM / ASME Seamless
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Elbows as per ASTM / ASME Art. no.
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Flanges ASME / ASTM Blind flanges -
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Flanges ASME / ASTM Art. no. D1 inc
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Flanges ASME / ASTM Screwed flanges
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Flanges ASTM / ASME SW and WNF Weld
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Flanges ASTM / ASME SW and WNF Art.
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Pipe components - Flanges as per AS
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Fittings ASTM / ASME Art.no. D1 inc
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Fittings reducing ASTM / ASME Seaml
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Fittings reducing ASTM / ASME Art.
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Fittings reducing ASTM / ASME Seaml
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Fittings ASTM / ASME Tees Seamless
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Fittings ASTM / ASME Tees Art. no.
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Fittings 3000/6000 lbs elb ASTM / A
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Fittings 3000/6000 lbs ASTM / ASME
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Fittings 3000/6000 lbs reducing AST
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Fittings ASTM / ASME Elbolets Elbol
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Fittings ASTM / ASME Sockolets Sock
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Fittings ASTM / ASME Threadolets Th
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Fittings ASTM / ASME Weldolets Weld
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Fittings ASTM / ASME Weldolets Art.
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Fittings ASTM / ASME pipe nipples A
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Fittings ASTM / ASME swage nipples
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Fittings ASTM / ASME swage nipples
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Van Leeuwen Pipe and Tube Lindtsedi
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Pipe Components 2011 - Van Leeuwen Buizen

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