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

General
Sensor/Transmitter Type	Operational with 4-20mA Transmitters or Passive sensor
Approvals	CE, UKCA
Documentation	Instruction manual, calibration certificate
Sensor
Dewpoint Range	Dewpoint range set by range of chosen transmitter
Sample Flow Rate	1-10L/Min 20 Max
Mechanical
Dimensions in mm (H x W x D)	600 x 418 x 210 approx
Weight	Approx 9kg (20 pounds)
Fittings	Stainless Steel
Weatherproof Classification	IP66
Mechanical Warranty	12 months in case of defective pats or faulty workmanship
Enclosure	Stainless Steel

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?