Flow Control
DSWK1YY
Brooks / Mykrolis IntelliFlow II Digital Mass Flow Controller
About this part
DSWK1YY identifies an IntelliFlow II digital mass flow controller. Its documented prefix specifies a normally closed controller with a stainless-steel body and Hastelloy sensor. The identifier is one character shorter than the published eight-position hardware ordering code, so the configured flow range, fitting, electrical interface, firmware revision, and special options require verification from the complete rear label
Configurations vary. Verify the exact unit before choosing a replacement.
No archived photo available
Key Facts
Specifications
| Model family | IntelliFlow II |
| Product-code prefix | DS |
| Product function | Mass flow controller |
| Valve configuration | Normally closed, diaphragm-isolated solenoid valve |
| Body and sensor code | Stainless-steel body with Hastelloy sensor |
| Published flow-bin coverage | 1 to 100,000 sccm N₂ equivalent; configured-unit range not established |
| Available communications | 0–5 VDC analog, RS-485 digital, or optional DeviceNet, depending on configuration |
| Operating temperature | 0 to 50 °C ambient and gas |
| Humidity | 10% to 95% RH, non-condensing |
| Maximum overrange pressure | 140 psig (9.5 bar) |
| External leak integrity | Less than 1 × 10⁻¹⁰ atm·cc/s |
| Turndown ratio | 50:1 |
What Does DSWK1YY Mean?
Only positions that remain unambiguous under the published IntelliFlow II ordering structure are decoded.
| Segment | Field | Interpretation |
|---|---|---|
| D | Product | Mass flow controller with normally closed valve |
| S | Materials | Stainless-steel body with Hastelloy sensor |
| WK1YY | Remaining configuration | Cannot be mapped safely because DSWK1YY contains seven characters while the published hardware code uses eight positions. The complete rear-label code is required to establish flow range, fittings, interface, firmware, and options. |
Published IntelliFlow II Performance Bands
These are family-level PF2033 Rev. G values, not confirmed DSWK1YY configured-unit ratings. The later A331749 Rev. 001 guide describes the 30–100 slpm specifications as tentative pending final qualification.
| Parameter | ≤30 slpm N₂ equivalent | 30–100 slpm N₂ equivalent |
|---|---|---|
| Turndown ratio | 50:1 | 50:1 |
| Response/settling time | 1 second typical | Less than 2.5 seconds |
| Analog accuracy | ±(0.25% SP + 0.50% FS) | ±(1.0% SP + 0.50% FS) |
| Digital accuracy | ±(0.25% SP + 0.35% FS) | ±(1.0% SP + 0.35% FS) |
| Linearity | ±0.50% FS maximum | ±0.75% FS maximum |
| Repeatability | ±0.15% FS maximum | ±0.25% FS maximum |
| Differential pressure | 7–40 psid through 11 slpm; 15–40 psid from 11–30 slpm | 30–50 psid |
Configuration Label Interpretation
Documentation Downloads
Local PDF copiesPart Photos
0 imagesHistorical archive images for identification, labels, connectors, and condition reference, not current inventory.
Historical Listings & Prices
Historical listing data, not a current offerThe typical recorded price range is $490.00 to $490.00. Based on 1 archived listing record; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
- BROOKS Mykrolis Intelli Flusso II Digitale Flusso Controller Tipo DSWK1YY Gas N2