+44 (0)1785 761344 or 
info@polyflon.co.ukInline Flow Meter (4R & 4P)
Series 4R Standard Flow Meter & Series 4P Custom Flow Meter
Series 4R & 4P flow meters have the benefit of vertical tube connections and so can be fitted ‘inline’ very easily. Due to this connection design, replacement of the flow meter is straight forward & problem-free. A control valve fitted at the base allows simple adjustment of the flow rate. The Series 4R version can be fitted with a range of standard measuring tubes; the series 4P version gives the customer the freedom to determine their own flow range with custom graduated glass tubes – both types to suit OD6.0mm x ID4.0mm tubing as standard.
Series 4R Standard flow Meter Availability
| Standard flow ranges (L/hr) | Glass tube dims (ØxL in mm) | To fit tube (IDxOD) |
|---|---|---|
| 4-40 air | 10×75 | 4/6 |
| 10-100 air | 10×75 | 4/6 |
| 40-400 air | 10×75 | 4/6 |
| 150-1600 air | 17×75 | 4/6 |
| 2.5-25 water | 17×75 | 4/6 |
| 4-40 water | 17×75 | 4/6 |
| 10-100 water | 17×75 | 4/6 |
- Note: If you require a Series 4P flow meter with custom measuring tube please contact our sales dept with your desired flow range & the type of media.
| Dimensions (mm) for Series 4R & 4P | |||||||
|---|---|---|---|---|---|---|---|
| Series & glass tube dims | Thread (G) | L | L2 | L4 | L7 | B | DN |
| 4R (Ø10xL75) | M14×1.5 | 200 | 45 | 130 | 105 | Ø20 | 4/6 |
| 4R (Ø17xL75) | M18×1.5 | 210 | 50 | 135 | 110 | Ø30 | 4/6 |
| 4P (Ø10xL75) | M14×1.5 | 200 | 45 | 130 | 105 | Ø20 | 4/6 |
| 4P (Ø17xL75) | M18×1.5 | 210 | 50 | 135 | 110 | Ø30 | 4/6 |
| 4P (Ø10xL150) | M14×1.5 | 275 | 45 | 205 | 180 | Ø20 | 4/6 |
| 4P (Ø17xL150) | M18×1.5 | 285 | 50 | 210 | 185 | Ø30 | 4/6 |
| Components | Series 4L & 4K | |
|---|---|---|
| 1. Housing | PP, PVDF, PFA | |
| 2. Valve Spindle | PCTFE | |
| 3. O-Ring ∗ | FKM® | |
| 4. Measuring Tube | Duran® Glass | |
| 5. Float | Air | Glass |
| Water | Stainless Steel | |
| 6. Protective Tube/Shield | PMMA | |
- ∗ EPDM, FFKM® on request
- Flow range for air measured at 0.1 bar, 20°C. Flow range for water measured at 1 bar, 20°C.
Click here for printable version – Inline Flow meter – 4R & 4P
The data listed falls within the normal range of product properties but they should not be used to establish specification limits nor used alone as the basis of design. Polyflon Technology Limited assumes no obligation or liability for any advice furnished by it or for results obtained with respect to these products. All such advice is provided gratis and the buyer assumes sole responsibility for the results obtained in reliance thereon.
