Pneumatic hydrocarbon cell samplers
Reliable and accurate flow-through sample extraction devices, suitable for use as part of an externally pumped, fast-loop bypass sampling system
Applications
- Automatic liquid sampling systems
Benefits
- Highly representative samples
- True positive displacement accuracy
- Excellent grab size repeatability
- Insensitivity to process conditions
- Proven custody transfer credibility
- Robust and maintainable design
Features
- Air-actuated flow-through sample extractor
- Low dead volume
- Bottom-exit sample outlet to minimize water separation
- Inline seal maintenance without removal from the fast loop
- Available in standard and high-pressure variants
How they improve performance
The Jiskoot™ 210 pneumatic hydrocarbon cell sampler is a low-maintenance, pneumatically actuated sample extraction device, designed for use in externally pumped fast-loop bypass sampling systems. Available in pressure ratings from ANSI Class 150 to 1500 and capable of sampling rates up to 120 grabs/min, it is ideally suited to a wide range of liquid hydrocarbon sampling applications. A high-pressure variant, the Jiskoot 210 pneumatic high-pressure hydrocarbon cell sampler is also available.
These samplers can be used for fluids ranging from natural gas liquids at –20 degC [–4 degF] to refined products and crude oils at temperatures up to 100 degC [212 degF]. A unique three-stage positive displacement mechanism enables accurate, repeatable sample extraction, irrespective of process pressure or fluid viscosity variations.
Jiskoot 210 pneumatic samplers are designed for installation in fast-loop lines with diameters ranging from 1 to 2 in, where the entire process stream passes through the sampler body. The flow-through design and bottom-exit sample outlet help maintain sample integrity by minimizing water retention and reducing dead volume within the sampler to an insignificant level.
Maintenance and seal replacement can be performed without removing the sampler from the fast loop, minimizing downtime and simplifying routine servicing. With a large global installed base and a proven track record in fiscal transfer and product quality measurement applications, Jiskoot 210 pneumatic samplers are a trusted solution for representative liquid sampling.
How they work
Installed in a fast-loop bypass line, these Jiskoot 210 cell samplers use a pneumatically actuated, three-stage, positive displacement mechanism to extract a fixed-volume sample from the flowing process stream. The sample is isolated and transferred through a check valve to the sample outlet, where successive sample grabs are combined to create a representative composite sample.
| Specifications | |||||
| Fluids sampled | Crude oil, refined hydrocarbons (including nonlubricating products), and noncorrosive chemicals | ||||
| Viscosity | Consult SLB if viscosity more than 4,000 mm2/s | ||||
| Ambient temperature | –4 to 149 degF [–20 to 65 degC] | ||||
| Pressure and temperature derating (standard materials of construction | ANSI Class | 100 degF [38 degC] | 122 degF [50 degC] | 212 degF [100 degC] | Model |
| 150 | 19 | 18.4 | 16.2 | Standard | |
| 300 | 49.6 | 48.1 | 42.2 | Standard | |
| 600 | 99.3 | 96.2 | 84.4 | Standard or high pressure | |
| 900 | 148.9 | 144.3 | 126.6 | High pressure | |
| 1500 | 248.2 | 240.6 | 211.0 | High pressure | |
| Operating temperature | –4 to 212 degF [–20 to 100 degC] | ||||
| Design temperature | –4 to 266 degF [–20 to 130 degC] | ||||
| Configuration | Fullbore flow-through cell | ||||
| Size range | 1-in to 2-in nominal bore | ||||
| Mounting arrangements | 1-in nominal bore, ANSI Class 150, 300, or 600, wafer type (standard) (1-in and 2-in flanged versions, ANSI Class 150, 300, 600, and 1500 available on request) | ||||
| Sample grab size (nominal) | 1.04 or 2.04 cc | ||||
| Grab size repeatability | Better than ±2% | ||||
| Grab size adjustment | 1-cc version ±20%, 2-cc version +0%/–10% | ||||
| Maximum grab rate* | Standard model: 120 grabs/min; High-pressure model: 60 grabs/min (1/2-in hose) | ||||
| Sample capture time | <250 ms | ||||
| Sample outlet connection | 1/4-in Swagelock® | ||||
| Standard materials | Pressure retaining: 316/304 stainless steel Standard seals: Graphite-filled PTFE Standard O-rings: Viton® (Kalrez® available**) (NACE certification available**) | ||||
| Operating standards and CE compliance | ISO 3171, API 8.2, IP 6.2, PED 97/23/EC, Machinery Directive 2006/42/EC, ATEX 94/9/EEC | ||||
| Approximate weight | Standard model: 27 lbm [12.5 kg]; High-pressure model: 29 lbm [13.5 kg] | ||||
| Actuation Data | |||||
| Actuation method | Pneumatic | ||||
| Air supply* | 60–145 psi [4–10 bar]; filtered air recommended | ||||
| Air consumption (30 grabs/min) | Standard model: 0.47 ft3/min [0.8 m3/h] at 5 bar High-pressure model: 1.0 ft3/min [1.67 m3/h] at 5 bar | ||||
| Actuator connections | 2×1/4-in NPT, female | ||||
* Maximum grab rate, consumption, seal life, and supply requirements are dependent on process conditions (i.e., line pressure and fluid viscosity).
** Available at additional charge
