A reminder that we will be at Midwest Green Fleet Forums next week, August 1st-2nd, in Columbus, OH. Join us at this exciting show and network with clean transportation stakeholders from throughout the midwest who are dedicated to reducing emissions with alternate fuels and saving money.
There is so much information available about selecting the right coalescing filter type and size. You can read for hours about how coalescing filters work and where to place them in order to reach the desired outcome for the oil carryover and cleanliness in high pressure CNG fuel lines. Coalescing filters are positioned in multiple locations along the fueling station CNG lines, in the fuel dispensers and in the CNG vehicle high pressure fuel system lines. The specification sheets for coalescing filters are full of details including the oil carryover Parts Per Million weight (PPMw) and micron size of the particles that will be trapped.
The photo above shows damage cause by linear expansion of stainless steel tubing. Linear expansion can lead to damage ranging from unsightly workmanship to connection leaks and complete failure on CNG Fueling stations, CNG vehicle fuel delivery systems, CNG tube trailers or any system where high pressure CNG stainless steel tubing is being run and significant temperature changes are present.
Don’t let high pressure become your weak link
From a safety standpoint, nothing is more critical to successful station commissioning than properly installed high pressure gas lines. Involving experts who have specific knowledge, skills and experience with the materials, components and installation methods can add value to the station project from design through commissioning.
“It’s a System, Man”. Those were words I spoke often back in my industrial automation systems design days as my team tried to channel people’s understanding away from the detailed components level focus and toward defining & meeting the top level system objectives. “A well-designed system is much greater than the sum of its parts” says Mike spears, automotive and alternative fuel vehicle industry expert.
In September of 2016, CSA Group released the NGV 6.1-2016 Compressed Natural Gas (CNG) fuel storage and delivery systems for road vehicles standard. Like some other standards associated with CNG vehicles, such as NGV 3.1-2014, this standard is still largely voluntary, but encouraged. However, that does not diminish the hard work done by the committee and the value provided by the standard. With only about 155,000 natural gas vehicles on U.S. roads today and the lull in the industry, mostly tied to the price of gasoline and diesel, there has not been a strong push to adopt these standards as mandatory. This will likely change as the industry matures and grows. Unfortunately, at some point, litigation will likely help that effort.
Why Choosing Suppliers with a Superior Quality Management System Matters
Not only true in the world of dog sled racing, but in most business applications today, if you are not leading the pack, you may be looking up someone’s back side. When it comes to Quality Management Systems (QMS), Insight Fuel continues to be one of the lead dogs in the CNG fuel system industry.
A few years ago, we made the decision to embrace the automotive industry requirements of TS-16949 (Click here to read more about TS16949). If you are not familiar with this technical standard, it is all the requirements of ISO-9001, with additional requirements specific to the automotive industry. While others in the industry were pursuing ISO-9001, we went a step beyond and became certified to TS-16949.
Last newsletter we defined the major contributors to safe and well performing high pressure CNG fuel lines on NGVs and CNG fueling stations. In that piece we focused on the connection fitting types. This time I’ll turn my attention to Quality Materials & Components with the focus on the stainless steel tubing.
The five bullets below present characteristics of the material, the manufacturer of the material or the supplier (often a distributor) of the material. The first item is the bare minimum requirement to meet the various industry standards and voluntarily adhered to guidelines for the CNG vehicle fuel system and CNG Fueling station industries. The other four items are things that make for superior tubing and therefore superior fuel systems. Papa John don’t lie…”Better ingredients…Better Pizza”. Same applies here.
Ensuring best practices on Natural Gas Vehicles and Fueling Stations
Whether designing & installing a Natural Gas Vehicle (NGV) fuel delivery system or a CNG fueling station, the major contributors to a safe, well performing high pressure CNG fuel system are:
- Proper Component Selection
- Quality Materials & Components
- Strong Training
- Sound & Careful Installation
- Correct Equipment & Tooling
- Calling On the Experts
In this blog, I’m going to focus on the first bullet item and on fitting connections specifically. The decision making criteria for fittings can include any of the following considerations:
Recent Blog Posts
- CNG Fueling Hose- repair and refurbish, or replace? August 9, 2017
- Unveiling at Midwest Green Fleet Forums July 26, 2017
- Come see us at Midwest Green Fleets Forum July 13, 2017
- Maintain Coalescing Filters to Prevent Poor Engine Performance April 19, 2017
- Preventing Damage Caused by Linear Expansion March 27, 2017