SRP-400 is a retractable sample probe with no welding on the sample path, separate sample and bleed ports, pressure indication and orifice-controlled safe bleed, so the probe can be removed and serviced under process pressure without a shutdown.
Why SRP-400 retractable sample probe
Service without a shutdown
The probe tube glides through a fitting rated to 100 kg/cm², with retraction lengths up to 800 mm.
Safe by design
Non fly-off construction, a three-way bleed valve, pressure indication and an orifice-controlled bleed.
A clean sample path
No welding on the sample path, negligible dead volume, and NACE compliance available.
Specifications
| Item | Specification | Notes |
|---|---|---|
| Design | 100 kg/cm2 and 180 C maximum | Wetted parts SS316, PTFE, Viton; NACE compliance available |
| Process connection | 1.5 or 2 inch ANSI #300 or #600 | |
| Sample tube | 12 mm OD, 8 mm ID | Retraction length 200, 400, 600 or 800 mm |
| Sample outlet and bleed | 1/4 or 1/8 inch OD | Three-way ball valve for bleed |
| Safety | Non fly-off design; pressure gauge for safe bleed; orifice-controlled bleed | Gauge 25 or 40 kg/cm2 by rating |
| Options | Process isolation valve (two-way ball valve) | |
| Sample path | No welding; negligible dead volume |
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
- Retract the probe for filter service without shutting down the process
- Pressure indication tells you when it is safe to withdraw
- Orifice-controlled bleed vents the pressure slowly
How it works
In pressurised ducts and vessels, a fixed probe cannot be removed without a shutdown. A retractable probe isolates the process, bleeds the pressure through a controlled orifice, and withdraws, so filters and elements are serviced on a running plant.
Avoiding welds on the sample path removes crevices that hold condensate and corrode. The pressure indication tells the maintainer whether bleeding is complete.
Requirements and limits
- Design pressure 100 kg/cm2 and design temperature 180 C maximum; confirm the rating for your process connection.
Selection guidance
Choose SRP-400 for pressurised processes, hazardous gas and long-running plants where shutdowns are costly. For wet analysis see the SV-400 vaporiser.
Applications
Application pages where this is part of the recommended solution:
Compatible products
SP and SRP sample probes
Heated and non-heated probes with blowback, and retractable probes, in SS316, Inconel or ceramic.
View SP and SRP sample probes
i-Cons
Smart Peltier sample conditioner with diagnostics, auto blowback and Modbus, in a compact 19 inch cabinet.
View i-ConsSV-200 / SV-400 vaporisers
Sample vaporisers for cryogenic and wet samples with no loss of sample.
View SV-200 / SV-400 vaporisersHeadline filters
Particulate, coalescing and PTFE membrane filters from Headline Filters, UK, for analyser protection.
View Headline filtersFrequently asked questions
Why retractable?
So the probe can be serviced under process pressure without a shutdown.
How is pressure bled?
Through an orifice, with pressure indication.
What about the sample path?
There is no welding on it.
Which gases?
Any that suit the probe materials; send your composition.