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Compact Gas-Liquid Scrubber for Gas Service
The IRIS® is a horizontal, compact, gas-liquid scrubber for in-line pipe installations. There are three sizes 3-inch (80 DN) 600 #CL, 6-inch (150 DN) 600 #CL, and 6-inch (150 DN) 900 #CL. Each contains a rotary drum that uses the gas energy to spin liquids out of a wet gas stream. Its compact design allows it to be installed quickly, with minimal changes required to the existing installation to achieve immediate results.
The IRIS separator can be as little as one-tenth of the size and weight of a conventional static separator and requires less instrumentation. Separation efficiency meets or exceeds that of static separators and provides a gas outlet quality that is suitable for compressors or metering duty.
Liquids can be separated and extracted ahead of flow meters in gas transmission lines. IRIS rotary separators can also clean up gases at compressor inlets and provide liquid and gas separation for most applications where liquids need removal from the process gas. The IRIS unit offers a smaller, lighter and lower total installed cost separation system compared to traditional systems. Its unique design facilitates easy retrofit installation
into nearly all process piping. The unit is ideally suited for service in applications with limited space. It requires no operator intervention and minimal maintenance.
Key Design Features
- In-line installation (easy retrofit)
- ANSI flange connections
- Low maintenance bearings
- Self-powered, free spinning
- Self-clearing of liquids and solids
- Simple, robust design
- Simple, minimal maintenance
- Direct reading tachometer
- Configurable standard models
Applications and Operating Range
The IRIS unit has exhibited separation efficiencies of 99.9 percent in field installations on raw gas service. It operates reliably over a wide range of flows and transient conditions. Pressure differentials will typically range from 0.5 to five percent of inlet pressure.
The compact size and self-powering operating characteristics of the IRIS separator enable it to be used for new and retrofit applications. Service applications include:
- Reciprocating inlet and discharge gas cleanup
- Well head gas cleanup
- Gas turbine fuel gas conditioning
- Downstream of existing scrubber/operator
- Metering station gas cleanup
- Plant air systems
|
Inlet- Exit Flange Size in (DN) |
Liquid Drain Flange Size in (DN) |
Flange Pressure Class Rating |
Config. | Pressure Rating psi (bar) |
"A"
in (mm) |
"B"
in (mm) |
Weight lbs. (kg) |
| 3 (80) |
1 (25) | 600 #CL | H | 1350 (93) |
13.4 (340) |
12.8 (325) |
175 (80) |
| 6 (150) |
2 (50) | 600 #CL | H | 1350 (93) |
26.3 (668) |
24.5 (629) |
1300 (590) |
| 6 (150) |
2 (50) | 900 #CL | H | 2025 (140) |
26.3 (668) |
24.5 (629) |
1300 (590) |
Materials of Construction
Three- and 6-inch IRIS units are manufactured from castings made from CA6NM ss material to provide superior corrosion resistance and long-term service in all applications. The castings meet the stringent requirements of NACE MR0175 Material Standard.
| IRIS Components | Original Design | New Design |
| Casings | 316 ss | CA6NM ss |
| Bearing housing, laby seal | Aluminum | CA6NM ss |
| Rotor (drum / shaft)* | 316 / 304 ss | CA6NM ss / CA6NM ss |
| Seals | Teflon / ss | Same |
| Fasteners | Coated ss | Same |
| Ball bearings (ball / race) | Ceramic / 440 ss | Same |
| Fittings and tubing | 316 ss | Same |
| *wc coating at seal areas | ||
| Accessories | ||
| Tachometer (enclosure / probe) | Aluminum / ss | Same |
| Drain system (drain / fittings) | Painted cs / ss | Same, ni plated as needed |