Pressure gauge product attributes

Pressure gauges are easy to describe loosely and hard to match exactly. A supplier line such as "4 in 0-160 psi 1/4 NPT LM glycerine" packs five attributes into a string, and the abbreviations vary by supplier. Connection location is a common casualty: lower mount and center back mount gauges with identical dials are not interchangeable in a panel or on a pipe tee.

Standards add a layer of translation. North American gauges are typically specified to ASME B40.100 accuracy grades and dial sizes in inches, while European gauges follow EN 837-1 classes and nominal sizes in millimeters. The two systems are close but not identical, and connection threads differ in the same way: NPT, BSPP and BSPT fittings in the same nominal size do not seal against each other.

A buyer replacing a gauge needs the range and scale units, the connection size, thread and position, the dial size, and the wetted material for the process fluid. For demanding service they also need the case fill, the safety pattern, overpressure limits and any hazardous-area or regional registration, all taken from the manufacturer's current data sheet.

The pressure gauges attribute template

18 candidate fields in 5 groups, ordered the way a record gets built: identify the item, capture its specifications, then record fit and the evidence behind any claim. 10 are marked Core: without them the item cannot be identified or filtered. Example values show the expected format only; they do not describe a real SKU.

Identity

Which exact item, variant and pack this record describes.

Check before use: Preserve leading zeros and punctuation, validate against the manufacturer record, and check the GTIN check digit and packaging level before linking.

Attribute	Type	Priority	Example format
Manufacturer Part Number manufacturer_part_number	Identifier	Core	PG-100-316-160-LM
GTIN / UPC gtin_upc	Identifier	Channel / evidence	00614141000913

Technical specifications

Measured or rated values that must travel with their unit and test conditions.

Check before use: Store the number and unit separately. Convert only when the source unit and test conditions are known.

Attribute	Type	Priority	Example format
Nominal Dial Size nominal_dial_size	Controlled list · in	Core	4 in [NS 100]
Pressure Range (Scale Range) pressure_range_scale_range	Text · psi	Core	0 to 160 psi
Accuracy Grade / Class accuracy_grade_class	Controlled list	Core	ASME B40.100 Grade 1A (±1% of span)
Overpressure / Pressure Limitation overpressure_pressure_limitation	Text	Buyer decision	Steady 1.0 × FS; fluctuating 0.9 × FS; short-time 1.3 × FS
Medium Temperature Range medium_temperature_range	Text · °C	Buyer decision	-20 to +100 °C (glycerine filled)
Ingress Protection Rating ingress_protection_rating	Controlled list	Buyer decision	IP65 per IEC/EN 60529

Selection attributes

The type, material and option choices buyers filter and compare on.

Check before use: Map supplier wording to a governed vocabulary only after checking the source text and which variant it applies to.

Attribute	Type	Priority	Example format
Gauge Type gauge_type	Controlled list	Core	Bourdon tube, C-type
Scale Unit scale_unit	Controlled list	Core	psi / bar dual scale
Wetted Parts Material wetted_parts_material	Controlled list	Core	Stainless steel 316L (1.4404)
Case Filling case_filling	Controlled list	Core	Glycerine
Case Material case_material	Controlled list	Buyer decision	Stainless steel 304 (1.4301)
Safety Pattern (EN 837-1) safety_pattern_en_837_1	Controlled list	Channel / evidence	S3 (solid front, blow-out back)

Fit & compatibility

What the item mounts to, mates with, replaces or works alongside.

Check before use: Keep model and series qualifiers. A similar-looking part is not a verified fit until a source says so.

Attribute	Type	Priority	Example format
Process Connection Size & Thread Standard process_connection_size_thread_standard	Controlled list	Core	1/4 in NPT male (ASME B1.20.1)
Connection Location connection_location	Controlled list	Core	Lower mount (radial)

Evidence & compliance

Listings, standards, classifications and origin claims that need a document behind them.

Check before use: Link the manufacturer document or label with its edition or date. Never copy a certification from a neighboring SKU.

Attribute	Type	Priority	Example format
Hazardous Area Approval hazardous_area_approval	Controlled list	Channel / evidence	ATEX II 2G Ex h IIC T6...T1 Gb X
Country of Origin country_of_origin	Controlled list	Channel / evidence	Germany

Normalize supplier values

The same value arrives in many spellings. Map each raw string to one governed value, and keep the raw text beside it so a reviewer can see what the supplier actually wrote.

Often missing from supplier files

These fields are commonly absent from price lists and basic feeds, even though the information usually exists in a datasheet, label or installation manual. Treat an empty value as a request for evidence, not as permission to fill it from a similar model.

• Safety pattern (EN 837-1 S1 / S2 / S3)
• Canadian Registration Number (CRN)
• Oxygen service cleaning
• Overpressure / pressure limitation
• Restrictor or snubber orifice

Questions the record must answer

Buyers and counter-sales reps choosing pressure gauges ask questions like these. Each one needs a specific field, sourced for the exact variant.

• Is this gauge bottom connected or back connected, and what thread is it?
• Will the 316 wetted parts handle our process fluid?
• Does it read in both psi and bar?
• Is it registered for use in our province or approved for our hazardous area?

From supplier file to record

1. Resolve identity first. Link the supplier SKU, manufacturer part number and packaging identifiers without merging distinct variants or pack sizes.
2. Extract with the source attached. Pull values from rows, tables and datasheets, keeping the raw text, unit and page or row reference.
3. Map to your classification. Assign the ETIM, ECLASS, UNSPSC or internal class your company licenses, and keep the supplier's original terms.
4. Review, sync and watch. Hold conflicts and safety-related values for a category expert, write approved values to ERP or PIM, and recheck when the supplier sends a new file.

For the full method, see how to build a category attribute template and the category catalog gap audit.

FAQ