Data coverage & sources
The stored record for Roots DVJ 1838J: specifications, configurations, documents, sources, and gaps.
One model, connected records
Roots → Roots DVJ Whispair exhauster performance data → DVJ 1838J
Manufacturer model: DVJ 1838J · OEM article / order number: Not collected · Equipment type: blower
Technology: Blowers
Related applications: Aeration, Pneumatic Conveying, Pressure Conveying
Related industries: Mining, Pulp + Paper, Water + Wastewater
These are technology associations. Check the operating point and process requirements to establish suitability for this model.
Compare coverage across this familySpecifications and evidence
11 stored observations · 10 pass the source policy at 60 Hz. Individual ratings do not establish flow at a requested pressure.
The collection checklist follows the equipment type. Additional attributes are retained. “Not collected” means the database has no observation for that field.
Blower flow · Not collected · 0 observations / 0 sources
No stored observation. A family brochure or a separate maximum rating does not fill this field.
Max. pressure · Not collected · 0 observations / 0 sources
No stored observation. A family brochure or a separate maximum rating does not fill this field.
Max. vacuum · Sourced · 1 observations / 1 sources
| As published | Normalized | Configuration / scope | Source / status |
|---|---|---|---|
| 22.5 Hg | — | Frequency not stated · model as printed: "Maximum vacuum limited to" unspecified | Source · OEM_SOURCEMaximum vacuum limited to 22.5 HgRetrieved 2026-10-20 |
Motor power · Not collected · 0 observations / 0 sources
No stored observation. A family brochure or a separate maximum rating does not fill this field.
Speed · Not collected · 0 observations / 0 sources
No stored observation. A family brochure or a separate maximum rating does not fill this field.
Noise level · Not collected · 0 observations / 0 sources
No stored observation. A family brochure or a separate maximum rating does not fill this field.
Weight · Sourced · 1 observations / 1 sources
| As published | Normalized | Configuration / scope | Source / status |
|---|---|---|---|
| 10800 lbs | 4898.794 kg | Frequency not stated · model as printed: "Wgt." unspecified | Source · OEM_SOURCE20 FLG 10800Retrieved 2026-10-20 |
Dimensions · Not collected · 0 observations / 0 sources
No stored observation. A family brochure or a separate maximum rating does not fill this field.
Inlet connection · Not collected · 0 observations / 0 sources
No stored observation. A family brochure or a separate maximum rating does not fill this field.
Outlet connection · Not collected · 0 observations / 0 sources
No stored observation. A family brochure or a separate maximum rating does not fill this field.
Max Free Air · Needs review · 1 observations / 1 sources · classification pending
| As published | Normalized | Configuration / scope | Source / status |
|---|---|---|---|
| 16870 CFM | 28662.3 m3/h | Frequency not stated · model Conditions not stated unspecified | Source · OEM_SOURCEMax. free air: 16870Retrieved 2026-10-04 |
Brake power (vacuum service) · Sourced · 4 observations / 1 sources
| As published | Normalized | Configuration / scope | Source / status |
|---|---|---|---|
| 588 BHP | 438.4716 kW | Frequency not stated · model 1000 RPM, 16”HgV vacuum unspecified | Source · OEM_SOURCEVacuum service brake horsepower: 588Retrieved 2026-10-04 |
| 736 BHP | 548.8352 kW | Frequency not stated · model 1000 RPM, 20”HgV vacuum unspecified | Source · OEM_SOURCEVacuum service brake horsepower: 736Retrieved 2026-10-04 |
| 414 BHP | 308.7198 kW | Frequency not stated · model 705 RPM, 16”HgV vacuum unspecified | Source · OEM_VERIFIEDVacuum service brake horsepower: 414Retrieved 2026-10-04 |
| 513 BHP | 382.5441 kW | Frequency not stated · model 705 RPM, 20”HgV vacuum unspecified | Source · OEM_VERIFIEDVacuum service brake horsepower: 513Retrieved 2026-10-04 |
Inlet flow (vacuum service) · Sourced · 4 observations / 1 sources
| As published | Normalized | Configuration / scope | Source / status |
|---|---|---|---|
| 14588 CFM | 24785.16 m3/h | Frequency not stated · model 1000 RPM, 16”HgV vacuum unspecified | Source · OEM_SOURCEVacuum service inlet flow: 14588Retrieved 2026-10-04 |
| 13851 CFM | 23532.99 m3/h | Frequency not stated · model 1000 RPM, 20”HgV vacuum unspecified | Source · OEM_SOURCEVacuum service inlet flow: 13851Retrieved 2026-10-04 |
| 9612 CFM | 16330.88 m3/h | Frequency not stated · model 705 RPM, 16”HgV vacuum unspecified | Source · OEM_VERIFIEDVacuum service inlet flow: 9612Retrieved 2026-10-04 |
| 8875 CFM | 15078.71 m3/h | Frequency not stated · model 705 RPM, 20”HgV vacuum unspecified | Source · OEM_VERIFIEDVacuum service inlet flow: 8875Retrieved 2026-10-04 |
Operating-performance coverage
Each row keeps its own configuration and relationship. Pending points are stored for review and excluded from shopper comparisons.
No versioned performance dataset has been collected for this model. Stored legacy points: 0; each retains its existing evidence status.
Document coverage
Categories follow recorded document types and linked extracted data. One document can appear in several categories. Family documents remain shared references; extraction does not imply approval.
| Category | Model links | Family links | Public sources |
|---|---|---|---|
| Specifications | 1 | 0 | |
| Performance curves / test data | 0 | 0 | Not collected |
| Operation / service manuals | 0 | 0 | Not collected |
| Parts documentation | 0 | 0 | Not collected |
| Drawings / dimensions | 0 | 0 | Not collected |
| Product / family literature | 0 | 0 | Not collected |
| Other / unclassified | 0 | 0 | Not collected |