PH Tool ERVD™ Thickness Calibration Block
Used for Thickness Calibration on multiple pipe sizes. The second addition to the Extended Range Variables (ERV™) product line, this Extended Range Variable Diameter (ERVD™) Thickness Calibration Block was jointly designed by PH Tool and Holloway NDT, intended for use as a versatile curved step block for thickness testing of pipe. Available in both Inch and Metric. With Multiple sizes in one convenient block, the ERVD™ Block covers the below diameters and steps – The second addition to the Extended Range Variables (ERV™) product line, this Extended Range Variable Diameter (ERVD™) Thickness Calibration Block was jointly designed by PH Tool and Holloway NDT, intended for use as a versatile curved step block for thickness testing of pipe. Available in both Inch and Metric. With Multiple sizes in one convenient block, the ERVD™ Block covers the below diameters and steps – The second addition to the Extended Range Variables (ERV™) product line, this Extended Range Variable Diameter (ERVD™) Thickness Calibration Block was jointly designed by PH Tool and Holloway NDT, intended for use as a versatile curved step block for thickness testing of pipe. Available in both Inch and Metric. With Multiple sizes in one convenient block, the ERVD™ Block covers the below diameters and steps – The second addition to the Extended Range Variables (ERV™) product line, this Extended Range Variable Diameter (ERVD™) Thickness Calibration Block was jointly designed by PH Tool and Holloway NDT, intended for use as a versatile curved step block for thickness testing of pipe. Available in both Inch and Metric. With Multiple sizes in one convenient block, the ERVD™ Block covers the below diameters and steps –
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Jointly designed by PH Tool and Holloway NDT, the fully ASME-compliant ERVW® Line of Calibration Blocks is an innovative development that has dramatically improved inspection efficiency. ERVW Blocks are carefully designed to make use of tolerance and allowances in ASME code to cover the maximum number of inspection sizes with just a few select blocks. Adding these blocks your kit will save a ton of weight and space vs. hauling dozens of individual cal blocks. The best part? – you’ll never find yourself without that “one missing size” that you need for your next inspection, saving you from scrambling to have a new block made.
ERVW Blocks sets are available for pipe inspection in the axial direction, with an option for either side drilled holes or notches as the reflector type, as well as a separate set for pipe inspection in the circumferential direction. Additionally, the new ERVD™ thickness calibration block is useful for thickness testing of multiple curved surfaces.
| Include Case | None, Wood Case |
|---|---|
| Material | 1018 Steel, 304 Stainless Steel |
| Measurement Unit | Inch, Metric |
The second addition to the Extended Range Variables (ERV™) product line, this Extended Range Variable Diameter (ERVD™) Thickness Calibration Block was jointly designed by PH Tool and Holloway NDT, intended for use as a versatile curved step block for thickness testing of pipe. Available in both Inch and Metric. With Multiple sizes in one convenient block, the ERVD™ Block covers the below diameters and steps
Alloy: 1018 Steel, Nickel-plated
Inch
• 3/4” NPS (1.050” OD) Steps .050, .150, .300”
• 1” NPS (1.315” OD) Steps .050, .200, .400”
• 2” NPS (2.375” OD) Steps .050, .250, .500”
• 4” NPS (4.500” OD) Steps .050, .250, .500, .750”
• Flat area for larger pipes. Steps .050, .200, .400, .600“
• “Bonus” Flat Step by using .750” block thickness
Metric
• DN 20 (26.7mm OD) Steps 1.0, 4.0, 8.0mm
• DN 25 (33.4mm OD) Steps 1.0, 5.0, 10.0mm
• DN 50 (60.3mm OD) Steps 1.0, 6.0, 12.0mm
• DN 100 (114.3mm OD) Steps 1.0, 6.0, 12.0, 18.0mm
• Flat area for larger pipes. Steps 1.0, 5.0, 10.0, 15.0mm
• “Bonus” Flat Step by using 20mm block thickness
• 18 calibration thicknesses in total
Engraved markings show pipe diameters for each section. Narrow slots are cut completely through the block to create multiple points for calibration. The various distances from the OD to the outboard side of the slot represent different wall thicknesses. Thickness values are engraved directly on the block for convenient calibration. Block also engraved with alloy and unique S/N that ties it to the certs.
