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Primary Meter Tube

Assembly

Precision-bored run carrying the primary element: an orifice fitting with plate, or an ultrasonic meter spool, with the upstream and downstream straight lengths the standard requires. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Primary Meter Tube parts and their functions

7 top-level parts · 258 parts in total · full bill of materials below
Primary Meter Tube parts diagram: 1 senior orifice fitting, 2 orifice plate, 3 ultrasonic meter spool, 4 honed tube spool, 5 multivariable transmitter, 6 RTD temperature probe, 7 thermowell. 258 parts in 7 top-level items.
Primary Meter Tube parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Senior Orifice Fitting 4 parts 1× Dual-chamber fitting that lets the orifice plate be changed under pressure without depressurizing the line.
2 Orifice Plate 1× Precision-bored stainless plate creating a measurable differential pressure.
3 Ultrasonic Meter Spool 3 parts 1× Multipath ultrasonic meter timing acoustic pulses across the bore to compute velocity.
4 Honed Tube Spool 1× Precision-bored straight run upstream and downstream of the primary element.
5 Multivariable Transmitter 4 parts 1× Measures differential pressure, static pressure and temperature in one device for orifice metering.
6 RTD Temperature Probe 1× Platinum 100 ohm RTD measuring column and exchanger temperatures.
7 Thermowell 1×

3D model

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Build & assembly graph

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Bill of materials for Primary Meter Tube

7 top-level lines · 25 rows shown · 258 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Senior Orifice Fitting 4 parts gms-orifice-fitting 1× 1 6 assembly
1.1 Fitting Body gms-fitting-body 1× 1 · part
1.2 Plate Carrier gms-plate-carrier 1× 1 · part
1.3 Carrier Drive Gear gms-shaft-gear 2× 2 · part
1.4 O-Ring Set oring-set 2× 2 · part
2 Orifice Plate gms-orifice-plate 1× 1 · part
3 Ultrasonic Meter Spool 3 parts gms-ultrasonic-spool 1× 1 184 assembly
3.1 Meter Spool Body gms-meter-body 1× 1 · part
3.2 Ultrasonic Transducer 3 parts gms-transducer 8× 8 3 assembly
3.2.1 Piezoelectric Element piezo-element 1× 8 · part
3.2.2 Transducer Housing gms-transducer-housing 1× 8 · part
3.2.3 O-Ring Set oring-set 1× 8 · part
3.3 Ultrasonic Meter Electronics 4 parts gms-usm-electronics 1× 1 159 assembly
3.3.1 Bare PCB pcb-bare 1× 1 · part
3.3.2 Microcontroller mcu 2× 2 · part
3.3.3 SMD Passive (R/C/L) smd-passives 150× 150 · part
3.3.4 Connector connector 6× 6 · part
4 Honed Tube Spool gms-tube-spool 1× 1 · part
5 Multivariable Transmitter 4 parts gms-multivariable-transmitter 1× 1 64 assembly
5.1 Bare PCB pcb-bare 1× 1 · part
5.2 Microcontroller mcu 1× 1 · part
5.3 Pressure Sensor pressure-sensor 2× 2 · part
5.4 SMD Passive (R/C/L) smd-passives 60× 60 · part
6 RTD Temperature Probe temperature-rtd 1× 1 · part
7 Thermowell gms-thermowell 1× 1 · part

Where the primary meter tube is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Gas Metering Skid

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks