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Natural Gas Leak Rate Measurement

The Hi Flow® Sampler is designed to measure the rate of gas leakage around various pipe fittings, valve packings, and compressor seals found in natural gas transmission, storage, and compressor facilities. This is accomplished by sampling at a very large flow rate (8 to 10 SCFM) to completely capture any gas leaking from the component. Then by accurately measuring the flow rate of the sampling stream and the natural gas concentration, it is possible to calculate the rate of the gas leak.

We at Bacharach are very excited about our partnership with the Gas Technology Institute in the commercialization of their patented Hi Flow Sampler. Many changes and enhancements have been made from the original instrument including: intrinsic safety, data logging, and instantaneous leak-rate display just to name a few.

Product Information

Why Use the Hi Flow® Sampler?

Specifications

Measured Values:
- Gas sample flow rate
- Background gas concentration
- Sample gas concentration
Calculated Values:
- Leak rate of component under test
- Leak concentration corrected for background
Measurable Leak Rate: 0.05 to 8.00 SCFM
Accuracy of Calculated Leak Rate: ±10%
Sampling Flow Rate: 10.5 SCFM maximum (297 LPM) at full battery charge
Memory: Stores up to 1000 individual test parameters
Natural Gas Sensor:
- Detection Method: Catalytic oxidation / Thermal conductivity
- Range: 0 to 5% methane, catalytic; 5 to 100% methane, thermal
- Accuracy: ±5% of reading or 0.02% methane, whichever is greater
Battery:
- Type: NiMH rechargeable pack
- Voltate: 5.5V max.
- Recharge Time: 8 to 10 hours
- Run Time: >4.5 hours continuous at 68°F
Operating Temperature: 32 to 122°F
Measurement Method: Differential pressure across restriction
Dimensions: 18 x 12 x 7 inches
Weight: 20 lb
Agency Approvals:
- Designed to be intrinsically safe for use in hazardous locations, Class I, Division 1, Groups A, B, C & D in North America
- CAN/CSA-C22.2 No. 157 (June 1992)
- ANSI (June 27, 2002)/UL913-2002
- CE Mark

Russia, Belarus, and Ukraine Distribution

Heath Consultants Inc. of Houston, TX is the exclusive distributor of the High Flow Sampler in Russia, Belarus, and the Ukraine.

Ordering Information

Part Number	Description
55-8020	Complete Hi Flow Sampler Assembly, including backpack, two rechargeable battery packs, battery power supply and charger, 6 ft hose assembly, and an assortment of attachments for capturing the entire gas leak.
55-8002	Calibration Kit, including on-demand regulator, 3 ft of tubing, calibration hose adapter, and female quick connect fitting.
55-0060	Calibration Gas, 100% methane
51-1121	Calibration Gas, 2.5% methane
55-0270	Calibration Gas, zero air
55-8000	Flow Meter

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