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Measurement guide

Measure for fit and removal

Start with an equipment tag, two photos with scale and the space your team needs for service. Download the editable sheet or include the same details in your inquiry.

Record the equipment and its surroundings

  1. Take a side photo and an end or working-side photo. Keep the scale in the same plane as the feature and record one unit system per item.
  2. Mark the intended coverage, nearby obstructions, operating parts and the direction the cover needs to come off. Use an equipment drawing where safe access for measurement is unavailable.
  3. Record normal and peak surface temperatures, indoor or outdoor exposure and the intended result. For repeat items, identify which equipment tags share the same geometry.
Download measurement sheet

Gate valve

  • Valve tag/model, flange OD, face-to-face length and fully open stem height
  • Working side and access to the handwheel and packing gland

Check full stem travel and access to the packing gland before approving the cover.

Prepare a gate valve inquiry →See the annotated fit drawing →
Uncovered stainless steel gate valve with a blue handwheel, bolted bonnet and end flanges
Third-party equipment photo · Identify the valve body, bonnet, handwheel and flange ends before measuring. Valve.jpg by Heather Smith / The Alloy Valve Stockist / Wikimedia Commons · CC BY 3.0 · Resized and converted to WebP

Bolted flange

  • Flange OD, overall joint width including projecting studs, and adjacent insulation OD
  • Wall clearance, working side and bolt withdrawal direction

Confirm both halves can be removed and required inspection or leak-detection points remain available.

Prepare a bolted flange inquiry →See the annotated fit drawing →
Section drawing of two welded pipe flanges joined by bolts
Third-party equipment diagram · Identify the flange pair and projecting fasteners to measure the complete joint width. FlanschVerb.jpg by S. Wetzel / Wikimedia Commons · CC BY-SA 4.0 · Resized and converted to WebP

Keep the same reference through review

Label each photo and drawing with its equipment tag and revision. If you already have a TERCC inquiry reference, use it when sending updates so the review stays in one thread. Agree how to share sensitive files before sending them.

See what the written quotation covers →
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