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Table of Contents
Summary of Contents for Naval DN 25
- Page 1 Instructions for Naval hot tapping equipment and valves...
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Page 2: Table Of Contents
Contents List of parts 1.1. 287195 DN 25-100 1.2. Exploded view Preparations 2.1. Preparing the pipe and valve 2.2. Preparing the hot tapping drill Hot tapping 3.1. Checklist for power drill 3.2. Drilling 3.3. Technical criteria for power drill 4. Installation dimensions and RPM settings 4.1. - Page 3 NOTE: This manual must be read and its instructions must be followed when installing, operating and/or performing maintenance on the valve as well as its manual gear or actuator. These instructions are of general nature and do not cover all possible operating scenarios. For more specific guidance on the installation, operation and maintenance of the valve or its suitability for an intended use, please contact the manufacturer.
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Page 4: List Of Parts
1. List of Parts 1.1. 287195 DN 25–100 Part nro Code Description Part nro Code Description 400001 Case for equipment 400047 Hole saw, DN 80 400062 Frame assembly 400048 Hole saw, DN 100 286152 Draining valve 40003930 Drill chuck, DN 25-32... - Page 5 *400056 contains: Code Description 400033 O-ring, D33 x 3 FPM for DN 20-25 adapter 400034 O-ring, D47 x 3 FPM for DN 32-40 adapter 400035 O-ring, D58 x 5 FPM for DN 50 adapter 400036 O-ring, D75 x 5 FPM for DN 65 adapter 400037 O-ring, D88 x 5 FPM for DN 80 adapter 400038...
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Page 6: Exploded View
2.1. Exploded view www.vexve.com... -
Page 7: Preparations
Preparations Preparing the pipe and valve Locate the exact point for the joint on the main pipe line and prepare the main pipe for welding of the valve. Check the place of the joint on the main pipe (if the main pipe is a weld seam tube, avoid welding the hot tapping valve on the weld seam). -
Page 8: Preparing The Hot Tapping Drill
The valve may be welded to the main pipe at any angle between 0° and 360° (see figure 2), but it must be at a 90° angle to the longitudinal axis of the main pipe (see figure 3). Figure 2. Figure 3. -
Page 9: Hot Tapping
Attach the draining valve with hose to Frame II and close the draining valve. Before drilling through the main pipe, test that the valve can be closed: release the shaft’s locking mechanism by pulling the spring loaded part # 400012 (see page 6) and slide out the shaft until it mechanically stops at the outermost position. -
Page 10: Drilling
3.2. Drilling When starting the drilling, i.e. when drilling the pilot hole, use high RPM (460 RPM), area 2 and scale F. Feed the drill through steadily and smoothly. During drilling, it is recommended to keep the draining valve open to remove the cuttings. Stop after only drilling through with the pilot drill bit. -
Page 11: Installation Dimensions And Rpm Settings
Installation dimensions and RPM settings 4.1. DN 25 Locking groove No. 1 Hole saw Ø 24 mm Main pipeline: nominal size DN 32 DN 40 DN 50 DN 65 DN 80 DN 100 DN 125 DN 150 DN ≥ 200... - Page 12 4.1. DN 32 Locking groove No. 1 Hole saw Ø 30 mm Main pipeline: nominal size DN 40 DN 50 DN 65 DN 80 DN 100 DN 125 DN 150 DN 200 DN 300 DN 400 DN ≥500 Speed: 285 RPM Area 2 Scale C1 When drilling through a DN 40 pipe, feeding must be stopped...
- Page 13 4.1. DN 40 Locking groove No. 2 Hole saw Ø 38 mm Main pipeline: nominal size DN 50 DN 65 DN 80 DN 100 DN 125 DN 150 DN 200 DN ≥300 Speed: 230 RPM Area 2 Scale B1 For pipe sizes DN ≥100 with wall thickness ≥ 10 mm, it is recommended to deduct 10 mm from the above ”A”...
- Page 14 4.1. DN 50 Locking groove No. 2 Hole saw Ø 48 mm Main pipeline: nominal size DN 65 DN 80 DN 100 DN 125 DN 150 DN 200 DN 300 DN 400 DN ≥500 Speed: 180 RPM Area 1 Scale E When drilling a DN 65 pipe, feeding must be stopped 10 mm before the maximum feeding distance.
- Page 15 4.1. DN 65 Locking groove No. 2 Hole saw Ø 64 mm Main pipeline: nominal size DN 80 DN 100 DN 125 DN 150 DN 200 DN 300 DN 400 DN 500 DN 600 DN ≥800 Speed: 135 RPM Area 1 Scale C The ”A”...
- Page 16 4.6. DN 80 Locking groove No. 3 Hole saw Ø 76 mm Main pipeline: nominal size DN 100 DN 125 DN 150 DN 200 DN 250 DN 300 DN 400 DN 500 DN 600 DN ≥800 Speed: 115 RPM Area 1 Scale B The ”A”...
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Page 17: Dn 100
4.7. DN 100 Locking groove No. 3 Hole saw Ø 95 mm Main pipeline: nominal size DN 125 DN 150 DN 200 DN 250 DN 300 DN 400 DN 500 DN 600 DN ≥800 Speed: 90 r/min Area 1 Scale A The ”A”... -
Page 18: Dn 125/150
4.8. DN 125/150 Locking groove No. 3 Hole saw Ø 121 mm Main pipeline: nominal size DN 200 DN 250 DN 300 DN 400 DN 500 DN 600 DN ≥800 Speed: 75-90 RPM Area 1 Scale A The ”A” dimensios are valid for Lenox and Sandvik hole saws. www.vexve.com... -
Page 19: Full Bore Dn 150
4.9. Full bore DN 150 Locking groove No. 2 Hole saw Ø 146 mm Main pipeline: nominal size DN 200 DN 250 DN 300 DN 400 DN ≥500 Speed: 75-90 RPM Area 1 Scale A The ”A” dimensions are valid for Lenox and Sandvik hole saws. www.vexve.com... -
Page 20: Dn 200
4.10. DN 200 Locking groove No. 2 Hole saw Ø 146 mm Main pipeline: nominal size DN 250 DN 300 DN 400 DN ≥500 Speed: 75-90 RPM Area 1 Scale A The ”A” dimensions are valid for Lenox and Sandvik hole saws. www.vexve.com... -
Page 21: Hot Tapping Through Dn 150 Full Bore Valve
Hot tapping through DN 150 full bore valve* (*or DN 200 reduced bore) Naval standard hot tapping tool can be used also for DN 150 full bore valve. Following matters must be observed: · New - +200mm - Longer shaft is needed ·... - Page 22 www.vexve.com...
- Page 23 www.vexve.com...
- Page 24 Vexve Oy Pajakatu 11 Riihenkalliontie 10 38200 Sastamala 23800 Laitila tel. +358 10 734 0800 www.vexve.com Finland Finland vexve.customer@vexve.com...