SP-100 is a simple probe, SP-200 adds a separate blowback line with an unheated filter, and SP-300 has a heated filter. Materials are SS316 to 550 C, Inconel 625 to 1100 C, ceramic to 1400 C and PTFE to 180 C, with a 2 inch ANSI connection.
Why Sample probes SP-100, SP-200 and SP-300
Blowback that cleans
A separate 1/2 inch blowback line delivers a high flow of air back through the filter, with a blowback solenoid valve as standard on SP-300.
No cold spots
The SP-300 filter sits just outside the stack and is heated evenly with 50 W, for samples with up to 15 % moisture.
Built for the process
Probe tubes in SS316 to 550 °C, Inconel 625 to 1100 °C or ceramic to 1400 °C, with a 10 micron sintered SS316 filter.
Specifications
| Item | Specification | Notes |
|---|---|---|
| SP-100 | Simple probe, with or without in-situ filter at the tip | |
| SP-200 | Probe with blowback, unheated filter | |
| SP-300 | Probe with heated filter | |
| SS 316 | Suitable up to 550 C | |
| Inconel 625 | Suitable up to 1100 C | |
| Ceramic | Suitable up to 1400 C | |
| PTFE | Suitable up to 180 C | |
| Process connection | 2 or 4 inch ANSI 150#, SS316, with bolts and gasket | Sample port 1/4 inch OD; blowback port 1/2 inch OD; optional calibration port 1/4 inch OD |
| SP-300 sample | 120 to 500 C; dust up to 10 g/Nm3; moisture up to 15 % | |
| SP-300 design | 10 kg/cm2 and 180 C maximum; blowback 4 to 7 kg/cm2 | Wetted parts SS316, PTFE, Viton |
| SP-300 filter | SS316 sintered, 10 micron, ex-situ and evenly heated | Heater 50 W; no cold spots |
| Insertion length | 500, 1000 or 1500 mm | 1500 mm not in ceramic |
| SP-100 dust load | Up to 10 gm/Nm3 for SS |
From the current Sarvesh product datasheets and company profile. Specifications may change without notice as products improve. The final responsibility to check that a product meets the process and analyser requirement remains with the customer.
Key features
- Filter element in SS 316, Hastelloy, Monel or PTFE; protector for abrasive gas
- SP-200 and SP-300: separate sample and blowback lines; 1/2 inch blowback line for efficient cleaning
- Non-return valve in the sample line removes the need for a heated solenoid or air-operated valve
- SS 316 sintered filter for long life and easy cleaning
- SP-300 filter is heated and sits just outside the stack; blowback solenoid valve standard; optional blowback tank
- Various pressure ratings available on SP-100
How it works
The probe is the first component of a sampling system and the first to fail in dirty gas. A filter at the tip keeps dust out of the line, but the filter then clogs, so probes for dusty or tarry gas have a blowback line that sends clean air back through the filter. i-Cons and SGI-320 time and trigger the blowback.
Choose the material from the gas temperature and corrosiveness. For gas above the dew point of its condensables, a heated filter such as SP-300 keeps tar and acid from forming at the filter. SP-200 suits low dew point samples.
On site: utilities and calibration gases
What to have ready at your plant before installation and commissioning.
| Item | Requirement | Notes |
|---|---|---|
| Heater power, SP-300 | 230 V AC, 50 Hz, 50 W | |
| Blowback valve, SP-300 | 230 V AC solenoid valve, supplied | |
| Blowback air | 4 to 7 kg/cm² | Through the separate 1/2 inch blowback port |
| Process connection | 2 or 4 inch ANSI 150# flange |
Selection guidance
Use SP-100 for simple, clean or moderately dusty gas, SP-200 for dusty gas with a low dew point, and SP-300 for gas with a high dew point. Where removal under pressure is needed, see the retractable probe.
Applications
Application pages where this is part of the recommended solution:
- Stack and emission monitoring
- Steel plant process gases
- Pyrolysis, gasification and syngas
- Heat-treatment furnace atmosphere
Compatible products
i-Cons
Smart Peltier sample conditioner with diagnostics, auto blowback and Modbus, in a compact 19 inch cabinet.
View i-Cons
SGI-300 / SGI-320
Peltier sample cooler with integrated pump, filter and condensate detector; SGI-320 for emission monitoring.
View SGI-300 / SGI-320
ACCURRA-S
Online analyser for trace, percent and purity O2, CO, CO2, CH4 and dew point; can measure two gases from one sample.
View ACCURRA-S
ACCURRA-Zr
Zirconia percent O2 analyser for furnaces and boilers, single-point air calibration, options to 1400 C.
View ACCURRA-ZrFrequently asked questions
Which probe material for 1000 C gas?
Inconel 625 is suitable up to 1100 C and ceramic up to 1400 C.
How is the filter cleaned?
By blowback through a separate 1/2 inch line, on a timer or automatically on flow failure when used with i-Cons.
What is the standard connection?
A 2 or 4 inch ANSI 150# process flange, a 1/4 inch OD sample port and a 1/2 inch OD blowback port.
What dust load can SP-100 take?
Up to 10 gm/Nm3 for SS.