SS-NGH Standard Sampling System

An easy-to-install, compact sample system for sampling trace moisture content in clean, dry natural gas — suitable for installation in hazardous areas.

Manufactured using high-quality components, the SS-NGH includes a particle filter, flow indicator, sensor/transmitter, sensor holder, sensor cable, pressure gauge and a heated pressure regulator.

A range of Alpha Moisture Systems’ displays are suitable for installation in the safe area with a Zener barrier or signal isolator. Installing a sample system for your natural gas applications will help reduce contamination levels and process pressures with the process stream in the liquid phase.

The SS-NGH is configurable so there is pressure reduction upstream of the sensor for measuring atmospheric pressure dewpoint and moisture concentration and a reduction in pressure downstream of the sensor for disposal after measuring the dewpoint at sample pressure.

Designed for reliable performance, the SS-NGH sample system ensures accurate and efficient trace moisture measurement in natural gas applications. While we can supply a standard configuration, this sample system is customizable to suit your application requirements.

Whatever the challenge — Alpha Moisture Systems has you covered.

Highly customised solutions
Trusted by industry leaders
Distributors worldwide
Over 30 years experience

Advanced sampling of clean, dry natural gas

Key features

Configurable system suitable for hazardous areas
ATEX certified heated pressure regulators for enhanced safety.
Support for sample inlet pressures up to 200 barg max.
Versatile sensor operation at inlet or atmospheric pressure.
Manual selector valves for process and auxiliary inlet options.
Clear indication of sample inlet and outlet pressures.
Choose from various measurement units in °C or °F dewpoint and absolute values in ppm(V), ppm(w), mg/m³ or lb/MMSCF.
Fully certified Exd enclosure available for hazardous area installations.

Technical Data

Enclosure Weather Proofing	IP66 rating
Enclosure Dimensions	(h x w x d): 600 x 418 x 210mm approx
Enclosure Weight	Approx 9kg (20 pounds)
Pipework	High-grade 316 Stainless Steel
Pressure Regulator	210bar (3,045 PSI) Maximum
Flow Indicator	5 litres per minute (0-10.6 SCFH)
Sensor Holder	High-grade 316 Stainless Steel
Pressure Gauge (Inlet)	Standard gauge 0-160bar (0-2320 PSI)
Pressure Gauge (Outlet)	Standard gauge 0-4bar (0-58 PSI)
Transmitter or Sensor Option	AMT-Ex Transmitter or Sensor (Passive) specified at order
Manufacturer’s Warranty	12 months in case of defective parts or faulty workmanship

Downloads

Information coming soon.

What's in the box

SS-NGH Standard Sampling System

SS-NGH User Manual

Applications

Natural Gas and LNGLiquification and regasification of natural gas have become integral and vital to the supply of global energy. The presence of moisture in the transportation of natural gas poses significant challenges, including the risk of freezing in vital pipelines and valves. Ensuring accurate measurement of trace moisture ensures gas quality, protecting downstream systems and extending the functional longevity of desiccant materials.

Natural Gas TransferPacked joints are widespread in gas distribution networks but they have the drawback of occasionally allowing moisture ingress, which can spread through the gas distribution system. Thereby resulting in the pilot light failure in domestic appliances. Monitoring/spot-checking trace moisture across a problem area will ensure that the source of the ingress is rapidly identified and fixed.

Frequently Asked QuestionsIf you have a question that’s not answered below, please contact us

What is the standard configuration of the SS-NGH Dewpoint Sample System?

The SS-NGH Sampling Systems typically include: transmitter or sensor with sensor holder/sample cell, pressure regulator (heated is optional), filter unit, flow indicator and a pressure gauge (inlet), pressure gauge (outlet) and all pipework in high grade stainless steel. However, we can design a system specifically for your application. Please contact us to discuss your exact requirements.

I need to measure moisture in Natural Gas but my requirements are complex. Which sample system would be suitable?

Can I customise the SS-NGH sample to meet my specific industrial requirements or environmental conditions?

What are the recommended maintenance procedures for the SS-NGH Sample System?

Our application will involve dewpoint sample systems installed outdoors, and in very hot conditions, how can we maintain a stable sample temperature to the dewpoint transmitter inside the enclosure?