Key Product Highlights — Truflo TKP | TK3P Series
1) High-Accuracy Flow Measurement with Wide Dynamic Range
- ±0.5% of full-scale linearity and ±0.5% repeatability @ 25°C (77°F)
- Wide operating velocity range: 1–33 ft/s (0.3–10 m/s)
- Designed for measuring liquid flow in full pipes
2) Flow + Total Indication with Installer-Friendly Display
- Bright LED display shows flow rate + flow totalizer
- 360° rotating display improves readability in any mounting orientation
- Pre-programmed configuration for quick commissioning (no programming required)
3) Control-System Outputs: Pulse + Optional RS485
- NPN pulse outputs for flow rate and totalizer pulse signals
- Optional RS485 communication output (special order) for data integration
- Flexible signal options (e.g., black wire can be changed for other pulse behaviors as specified)
4) ShearPro® Paddle Wheel Longevity and Wear-Resistant Internals
- Contoured ShearPro® profile reduces turbulence and increases service life
- ETFE (Tefzel®) paddle wheel provides excellent chemical and wear resistance
- Zirconium ceramic rotor pin/bushings (ZrO2) for high wear resistance and reduced fatigue stress
5) Corrosion-Resistant Materials and Industrial-Grade Protection
- Body materials: PVC (dark), PP (pigmented), PVDF (natural), 316 SS
- Environmental protection: NEMA 4X / IP66; low pressure drop design
- True-union design (½”–2″) and flanged connection (3″–4″) for easier installation/service
Technical Specifications
| Parameter | Specification |
|---|---|
| Measurement / Display | LED display: Flow rate + flow totalizer (360° rotatable) |
| Operating Range | 1–33 ft/s (0.3–10 m/s) |
| Pipe Size Range | ¼”–4″ (¼”–¾” SS only) |
| Linearity (Accuracy) | ±0.5% of full scale @ 25°C (77°F) |
| Repeatability | ±0.5% of full scale @ 25°C (77°F) |
| Wetted Body Materials | PVC, PP, PVDF, 316 SS |
| Seal Materials | FKM (standard), EPDM (optional), FFKM/Kalrez® (optional) |
| Rotor Pin / Bushings | Zirconium ceramic (ZrO2) |
| Paddle / Rotor | ETFE (Tefzel®), ShearPro® contoured design |
| Outputs | NPN pulse + optional RS485 |
| Frequency (nominal) | 49 Hz per m/s; 15 Hz per ft/s |
| Supply Voltage | 9–30 VDC ±10% regulated |
| Supply Current | <1.5 mA @ 3.3–6 VDC; <20 mA @ 6–24 VDC |
| Enclosure Rating | NEMA 4X / IP66 |
| Pressure/Temperature (Non-Shock) | PVC: 180 psi @ 68°F; 40 psi @ 140°F. PP: 180 psi @ 68°F; 40 psi @ 190°F. PVDF: 200 psi @ 68°F; 40 psi @ 240°F. 316 SS: 200 psi @ 180°F; 40 psi @ 300°F. |
| Operating Temperature | PVC: 32–140°F (0–60°C); PP: -4–190°F (-20–88°C); PVDF: -40–240°F (-40–115°C); 316 SS: -40–300°F (-40–148°C) |
| Standards & Approvals | UL, NSF, CE, RoHS compliant |
| Notes | K-factor is pre-programmed; RS485 is a special order option |
Suitable Applications — Truflo TKP | TK3P Series
The TKP | TK3P Series is ideal where users need accurate flow measurement and totalization with pulse outputs and optional RS485 communications for automation and monitoring—especially in chemically aggressive or washdown environments.
- Chemical dosing and metering skids (flow rate + total with pulse outputs)
- PLC/SCADA integration for remote flow monitoring (RS485 option)
- Water and wastewater process lines and distribution loops
- Corrosive chemical transfer and process circulation systems
- Filtration and cooling-water recirculation loops
- OEM equipment requiring pre-programmed sensors with fast installation
- General industrial flow monitoring where NEMA 4X/IP66 protection is required