Flow Control
1114CK120LFAC
Brooks Instrument Full-View Glass-Tube Variable-Area Flowmeter
About this part
Brooks Instrument 1114CK120LFAC is a configured Full-View 1100 Series variable-area flowmeter. Model 1114 denotes vertical female NPT inlet and outlet connections. Exact-identifier inventory evidence consistently describes a 0–9.05 CFM configuration with 3/4-inch NPT connections. Brooks’ capacity table independently assigns 9.05 SCFM at 14.7 psia and 70°F to a size-9, 127 mm R-9M-127-1 tube with a 9-RS-33 float. The calibration gas, precise scale inscription, construction materials, seals, and accessories require the original configuration record or a readable instrument label
Configurations vary. Verify the exact unit before choosing a replacement.
No archived photo available
Key Facts
Specifications
| Manufacturer | Brooks Instrument |
| Product family | Full-View 1100 Series |
| Configured identifier | 1114CK120LFAC |
| Measurement principle | Variable area (rotameter), using a float in a tapered glass metering tube |
| Metering tube | Borosilicate glass; family-level construction specified for the 1110/1140 Series |
| Model 1114 orientation | Vertical inlet and vertical outlet |
| Connection type | Female NPT |
| Observed exact-identifier connection size | 3/4 inch NPT; this corresponds to meter size 9 in the Brooks Model 1114 connection table |
| Observed exact-identifier range | 0–9.05 CFM; the exact calibration gas and reference conditions are not established by an exact manufacturer configuration record |
| Official capacity-table correspondence | 9.05 SCFM (256.3 SLPM) air at 14.7 psia and 70°F (21.1°C), using size-9 tube R-9M-127-1 and float 9-RS-33 |
| 1110/1140 Series flow accuracy | Standard ±2% of full scale; optional ±1% of full scale for 127, 150, and 250 mm tubes |
| 1110/1140 Series repeatability | 0.5% of full scale |
| 1110/1140 Series ambient temperature | 33–125°F (1–52°C) |
| Operating-fluid temperature | 33–250°F (1–121°C) with metallic end fittings; nonmetallic fittings have reduced limits |
| Size-9 family pressure limits | Maximum non-shock pressure is 175 psig with metal end fittings or 100 psig for the 316 stainless-steel CRN configuration; the exact unit’s fitting material and CRN status are not established |
What Does 1114CK120LFAC Mean?
Brooks part numbers use fixed positions to describe how a Full-View flowmeter was built. This code identifies the meter size, tube, float, materials, and connection type. A few characters are not listed in the available Brooks ordering guide and remain unknown.
| Segment | Field | Interpretation |
|---|---|---|
| 111 | Base model | Threaded Full-View variable-area flowmeter. |
| 4C | Connection orientation | Not listed in the available Brooks ordering guide. The guide uses 4D for vertical inlet and vertical outlet, so the orientation should be confirmed from the meter. |
| K | Meter size | Size 9; a threaded size-9 Model 111 uses 3/4-inch connections. |
| 1 | Metering tube | R-9M-127-1 tube with a 127 mm nominal scale length. |
| 2 | Float | 9-RS-33 float for a size-9 meter. |
| 0 | Float material | Unknown option; 0 is not listed for this field in the available Brooks ordering guide. |
| L | Scale inscription | Unknown option; L is not listed for this field in the available Brooks ordering guide. |
| F | Materials of construction | 316 stainless-steel fittings with Viton packing and Viton O-rings. |
| A | Connection type | NPT connection. |
| C | Accessories | Unknown option; C is not listed for this field in the available Brooks ordering guide. |
Replacement and Retrofit
Brooks identifies the GT1600 Series as configurable to retrofit Full-View 1100 Series meters, including Model 1114.
Glass-Tube Safety Notes
Brooks’ installation manual gives specific precautions for Full-View glass-tube meters.
- Keep the plastic protective sleeve over the glass tube on meter sizes 7 through 13.
- Fasten the meter windows securely.
- Do not exceed the applicable pressure or temperature limits.
- Avoid pressure and flow surges.
- Do not service or repair the meter while it is pressurized.
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 $332.12 to $362.12. Based on 3 archived listing records; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
- Brooks Instrument 1114CK120LFAC Variable Area Flow Meter 0-9.05cfm 3/4in Npt