Ryton Body Flat Surface Electrode – FLS pH 800
The FLS 870 pH electrode line is designed for superior performance in demanding industrial applications. Built with a rugged Ryton body and an auto-cleaning flat pH surface, it ensures accurate and reliable measurement even in dirty liquids and aggressive solutions. A built-in Pt1000 temperature sensor enhances precision, while the wide junction design improves stability in the presence of suspended solids. The 870 electrodes feature a ¾” threaded connection, allowing easy in-line installation from the electrode bottom or submersible mounting from the electrode head. Specialized versions are available for unique requirements, including horizontal mounting (-HM), low-conductivity samples (-LC), and aggressive environments with HF <2% or low pH (-HF). A versatile and durable solution for continuous monitoring.
Ryton Body Flat Surface Electrode – FLS pH 800
- Temperature sensor combined
- Flat surface electrodes
- Tough Ryton body
- Double threaded body for in line and submersion installation
- Double junction technology
- HM option for horizontal mounting
- HF option for liquids with HF (max 2%)
- LC option for liquid with a conductivity lower than 100µS/cm
Technical Details of Ryton Body Flat Surface Electrode – FLS pH 800
| Specification | Details |
|---|---|
| Operating Range | pH Electrodes: 0-14 pH (0-12.3 pH without Na⁺ error) |
| Pipe Size Range | DN15 to DN100 (0.5” to 4”) |
| Zero voltage point new electrode performances | 7.00 pH ± 0.2 pH |
| Efficiency new electrode performances | > 97% @ 25°C (77°F) |
| Response time new electrode performances | pH: < 6 sec for 95% of signal change |
| Type | Sealed double junction |
| Electrolyte | Solidified Gel 3.5M KCl 0.1M KCl for LC electrode version / solidified gel KCl 3.5M |
| Secondary junction | Nylon filament |
| Wire | Ag/AgCl |
| Type | 3/4” NPT threaded body for submersion or in-line installation |
| Max Working Pressure / Temperature | 6.7 bar @ 75°C (100 psi @ 170°F) 5.7 bar @ 81°C (85 psi @ 180°F) 3.3 bar @ 100°C (50 psi @ 212°F) |
| Wetted Materials | Body – PPS (Ryton®), HDPE, pH Glass, leaded glass Reference Junction – Porous HDPE Sensing Surface – Glass membrane |
| Manufactured under | ISO 9001, ISO 14001 |
| Certification | CE, EAC |
| Part No. | Description / Name | Applications / Operative Range | Cable (sold separately) | Connection | Installation | Weight (gr.) |
|---|---|---|---|---|---|---|
| PH870CDTC | Ryton double junction flat surface pH electrode with Pt1000 | 0 – 14 pH (0 – 12.3 pH without Na⁺ error) | Not required | 5 mt (16.5 ft) | 3/4” NPT | 250 |
| PH870CDTCHM | Ryton double junction flat surface pH electrode with Pt1000 | 0 – 14 pH (0 – 12.3 pH without Na⁺ error) / Horizontal mounting | Not required | 5 mt (16.5 ft) | 3/4” NPT | 250 |
| PH870CDTCLC | Ryton double junction flat surface pH electrode with Pt1000 | 0 – 14 pH (0 – 12.3 pH without Na⁺ error) / Low conductivity (10 µS/cm < conductivity < 100 µS/cm) | Not required | 5 mt (16.5 ft) | 3/4” NPT | 250 |
| PH870CDTCHF | Ryton double junction flat surface pH electrode with Pt1000 | 0 – 14 pH (0 – 12.3 pH without Na⁺ error) / Presence of HF (max 2%) | Not required | 5 mt (16.5 ft) | 3/4” NPT | 250 |
1 – Cable: 5 m (16,5 ft)
2 – Ryton body
3 – Flat pH glass
4 – Porous HDPE junction
5 – Temperature sensor inside pH stem
6 – 3⁄4” NPT threads
7 – Wrench flat

Customization & Processing Options
Customizations Option Available for Ryton Body Flat Surface Electrode – FLS pH 800
At Petron Thermoplast, we offer customized PVDF fittings to meet your specific system requirements.
Customization options include:
- Tailor-made dimensions and wall thicknesses
- Custom-molded and machined PVDF fittings
- Pre-fabricated manifolds and assemblies
- Choice of connection type (butt fusion, socket fusion, or flanged)
- OEM branding or marking options
