Diaphragm pump product attributes

Air-operated double diaphragm pumps are usually ordered from a long configuration code, with separate positions for housing material, diaphragm, valve balls, seats, O-rings and port thread. Supplier price lists often expand that code into dozens of lines with near-identical descriptions, so the materials that matter to the buyer are only readable if the code is decoded correctly against the manufacturer's key.

Wetted materials decide compatibility and temperature, and they are chosen per component. A stainless housing can be paired with PTFE diaphragms and PTFE balls for a solvent, or with elastomer parts for abrasive slurries, and the lowest-rated part sets the temperature limit. Port data is also split: size and thread type are separate facts, and NPT and BSP threads look similar in a feed but do not mate.

A buyer needs flow and pressure capability, suction lift, maximum solids size and air consumption for sizing, plus the full wetted-material list for compatibility. Pumps used in hazardous areas or with food products need the exact marking or conformity statement from the manufacturer, not a yes/no flag.

The diaphragm pumps 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. 9 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 (MPN) manufacturer_part_number_mpn	Identifier	Core	AODD-15-SS-TF-TF-N
GTIN / UPC gtin_upc	Identifier	Channel / evidence	0614141000753

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
Max Flow Rate max_flow_rate	Number · gpm	Core	81 gpm (307 L/min)
Max Discharge Pressure max_discharge_pressure	Number · psi	Core	125 psi (8.6 bar)
Max Fluid Temperature max_fluid_temperature	Number · °C	Core	104 °C (220 °F), PTFE diaphragm set
Air Consumption at Rated Duty air_consumption_at_rated_duty	Number · scfm	Buyer decision	40 scfm (maximum)
Suction Lift — Dry / Wet suction_lift_dry_wet	Text · ft	Buyer decision	19 ft dry / 26.2 ft wet (5.8 / 8 m)
Max Solids Diameter max_solids_diameter	Number · mm	Buyer decision	4.8 mm (3/16 in)

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
Pump Drive Type pump_drive_type	Controlled list	Core	Air-operated double diaphragm (AODD)
Wetted Housing Material wetted_housing_material	Controlled list	Core	316 stainless steel
Diaphragm Material diaphragm_material	Controlled list	Core	PTFE with Santoprene backup
Valve Ball & Seat Material valve_ball_seat_material	Controlled list	Buyer decision	PTFE ball / 316 SS seat
Static-Dissipative Construction static_dissipative_construction	Controlled list	Buyer decision	Yes, conductive metal housing with ground lug

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
Port Size (Suction & Discharge) port_size_suction_discharge	Number · in	Core	1-1/2 in (38 mm / DN40)
Port Connection Type port_connection_type	Controlled list	Core	NPT, female

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
ATEX / Ex Marking atex_ex_marking	Text	Channel / evidence	II 2G Ex h IIB T4 Gb
Food Contact Compliance food_contact_compliance	Controlled list	Channel / evidence	Wetted PTFE parts stated to FDA 21 CFR 177.1550
Country of Origin country_of_origin	Controlled list	Channel / evidence	United States

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.

• Wetted material by component (ball, seat, O-ring)
• Air consumption at the duty point
• Full ATEX or IECEx marking string
• Suction lift, dry vs wet
• Displacement per stroke

Questions the record must answer

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

• Are all the wetted parts compatible with the solvent we are transferring?
• Will the ports thread onto our NPT fittings, or are they BSP?
• Can this pump run in our Zone 1 area, and what is its full marking?
• Which spare diaphragm kit fits this exact configuration?

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