INSTRUMENTATION / INTERACTIVE 3D

Orifice meter-run cutaway

Inspect an original hollow meter tube, separate restriction plate, real aperture and two drilled pressure paths.

Loading the 3D model…

Drag to orbit · Scroll or pinch to zoom · Select a visible part or use the parts list. Keyboard: focus the view and use arrow keys to orbit.

COMPONENT INSPECTOR

Explore the assembly

Select a component to read its role. The list below also works without a 3D display.

Choose a component75 individually named components

Internal / mechanicalIllustrative connections / regionsStructure / enclosure

Colors identify parts in this teaching model. They are not an industry color standard.

HOW TO READ THIS MODEL

The system, explained.

An orifice plate is a pressure-differential primary element in a full pipe. ASME describes the need to consider geometry, installation and flowing conditions; Emerson documents the broad plate and tap roles. Our original 75-part teaching model separates an open upstream and downstream tube, a restriction plate with an actual smaller central aperture, two drilled wall taps, independent hollow impulse-line envelopes, gasket and carrier locations, paired bored flanges and smooth joint-location hardware. The cutaway render exposes the intact-model passage. It does not depict a transmitter, a measured pressure differential, a standard plate edge, selected beta ratio, flow correction or a qualified meter run. Compare the different narrowing passage in the separate Venturi model; neither model measures flow.

Model scope and limits

Original invented 75-mesh static cutaway with open pipe ends, separate thin annular plate, central real aperture, two drilled wall taps and separate hollow line envelopes. Five selected axial rays, retained plate/wall rays, 43 selected bores and 20 washer openings checked on the exported GLB. Gaskets, carrier, flanges, smooth studs, bored nuts and supports are visual location markers, not selected fits, seals or rated construction. No OEM CAD/figure, ASME/ISO/API/AGA plate profile, dimensions, beta selection, tap-spacing standard, material, pressure class, full-pipe installation, straight-run requirement, gas composition, Reynolds range, flow or differential measurement, coefficient, expansibility, density compensation, uncertainty, custody-transfer compliance, transmitter, leak test, pressure containment, operating or service qualification.

Further reading: ASME MFC-3M scope: geometry, installation and flowing conditions for differential-pressure devices; no standard geometry, figures, formulas or dimensions imported ↗

Source links support further study; no affiliation or endorsement is implied.

CHECK YOUR UNDERSTANDING

What does this orifice model prove?

An installed and calibrated custody-transfer meterA real teaching aperture and two geometric pressure paths without a flow resultThat the plate is suitable for any gas and piping installation

GUIDED COMPONENT STUDY

Trace the system.

Read each explanation, then focus its component in the explorer. This is a learning route through the model, with no operating or maintenance sequence.

Follow the open upstream tube
The full 3D asset retains an inner and outer wall and an open upstream boundary. Its invented length does not meet a required straight-run specification.
Find the restriction itself
The separate gold plate has an actual smaller central opening. No standard sharp-edge profile, diameter ratio, coefficient or flow rate is claimed.
Inspect the carrier outline
This ring is a distinct, hollow location marker around the plate. It does not specify a commercial holder, retention method or safe removal procedure.
Separate the two gasket locations
Two independent annular markers flank the plate. They are neither compressed nor tested for leakage or a pressure class.
Trace the upstream pressure opening
A true wall bore reaches this open neck. It marks one geometric pressure path, without a measured upstream pressure.
Trace the downstream pressure opening
The second actual wall bore is independent. A differential reading would require instruments, operating conditions and verified installation that are absent here.
End the line at an open boundary
The hollow collar remains open. No manifold, filled impulse line, transmitter or custody-transfer record follows it.
Inspect a separate flange
This face has eight actual joint-location bores. The pattern and dimensions are invented; no flange class or sealing fit is selected.
Inspect a joint marker
The hexagonal envelope has a real hole, separate from a smooth stud and washer. No threads, preload or load path is calculated.
Leave through the downstream tube
The passage returns to the larger bore and ends open. Neither the graphic nor the generic source gives a flow measurement for this invented run.

Additional primary references:

ACCESSIBLE COMPONENT REFERENCE

Every part, in plain language.

Search all components ↗Model provenance ↗

Upstream hollow meter tube

Open pipe boundary with an independently inspectable inner wall. Original invented teaching geometry; no selected meter run, standard compliance, rating, calibration, flow result, leak test or safe service.

Downstream hollow meter tube

Separate open pipe boundary after the thin restriction. Original invented teaching geometry; no selected meter run, standard compliance, rating, calibration, flow result, leak test or safe service.

Removable orifice plate with real aperture

Flat independent restriction plate with a true central opening; no specified edge, beta or coefficient. Original invented teaching geometry; no selected meter run, standard compliance, rating, calibration, flow result, leak test or safe service.

Upstream plate gasket location

Separate annular location marker; compression and sealing are not modeled. Original invented teaching geometry; no selected meter run, standard compliance, rating, calibration, flow result, leak test or safe service.

Downstream plate gasket location

Plate carrier outer ring

Hollow carrier outline around the independent plate; not a selected retention mechanism. Original invented teaching geometry; no selected meter run, standard compliance, rating, calibration, flow result, leak test or safe service.

Plate lifting tab

Simple locator tab associated with the carrier; no lifting method or safe access instruction. Original invented teaching geometry; no selected meter run, standard compliance, rating, calibration, flow result, leak test or safe service.

Upstream hollow pressure-tap neck

Separate open neck over the drilled tube wall; no actual fitting or seal. Original invented teaching geometry; no selected meter run, standard compliance, rating, calibration, flow result, leak test or safe service.

Upstream open impulse-line envelope

Schematic open line marker with no fill, isolation manifold or transmitter response. Original invented teaching geometry; no selected meter run, standard compliance, rating, calibration, flow result, leak test or safe service.

Upstream line-end collar

Bored upper boundary; the line remains open to the scene. Original invented teaching geometry; no selected meter run, standard compliance, rating, calibration, flow result, leak test or safe service.

Downstream hollow pressure-tap neck

Downstream open impulse-line envelope

Downstream line-end collar

Bored upper boundary; the line remains open to the scene. Original invented teaching geometry; no selected meter run, standard compliance, rating, calibration, flow result, leak test or safe service.

Upstream meter flange

Independent bored meter-run flange with eight invented joint openings. Original invented teaching geometry; no selected meter run, standard compliance, rating, calibration, flow result, leak test or safe service.

Upstream raised-face marker

Separate annular face location; no selected facing or sealing performance. Original invented teaching geometry; no selected meter run, standard compliance, rating, calibration, flow result, leak test or safe service.

Downstream meter flange

Downstream raised-face marker

Meter joint 1 smooth stud

Separate smooth joint-location rod; no threads or preload. Original invented teaching geometry; no selected meter run, standard compliance, rating, calibration, flow result, leak test or safe service.

Meter joint 1 upstream washer

Washer with a real central hole; no selected material or clamp load. Original invented teaching geometry; no selected meter run, standard compliance, rating, calibration, flow result, leak test or safe service.

Meter joint 1 downstream washer

Meter joint 1 upstream nut