University and SCHOOL DISTRICT CNG Projects
New York University & School District CNG Projects
Long Beach School District – Long Beach, NY
2003, Air & Gas Technologies designed and installed a methane detection system & HVAC upgrades for the fleet’s repair garage. Modifications were required to comply with NFPA requirements for CNG school busses. This involved two rooftop heaters with economizers interconnected with the methane detection system, which went to 100% make-up air when triggered by an elevated LEL and activating rooftop exhaust fans. This design avoided opening garage doors (especially in the winter) to flush the garage area with fresh air.
Click on any photo to see a large slideshow.
Bare Stainless Leaked – Deteriorated by Salt Water
2016, due to effect of Hurricane Sandy increasing the sea level, the salt water adversely impacted the stainless (bare) tubing, previously installed by others which were leaking. We replaced all underground high-pressure lines with thermoplastic coated (tracepak) stainless steel.
New Thermo-Plastic-Encapsulated Stainless Tubing
Re-piped Above Grade Stainless Tubing to new Thermo-Plastic Encapsulated Stainless Tubing in PVC Sleeve
2019, upgraded the two original 2001 CNG compressors with a duplex compressor system with respective piping and electric modifications, and optimizing the inlet gas pressure for increased efficiency and flow. Project included providing a temporary CNG compressor so there was constant fueling capabilities during the upgrade process.
Duplex Compressor System Upgraded
2019, upgraded the two original 2001 CNG compressors with a duplex compressor system with respective piping and electric modifications, and optimizing the inlet gas pressure for increased efficiency and flow. Project included providing a temporary CNG compressor so there was constant fueling capabilities during the upgrade process.
Priority Panel Upgrade
New Time-Fill Hose Assemblies with Heavy Duty Retractor
Fast-Fill Dispenser
2021, replaced the dispenser and valve panel along with 32 time-fill hose pole assemblies. This was done in phases to maintain functionality of the site with temporary interconnections.
Pennsylvania University & School District CNG Projects
Lower Merion School District – Ardmore & Rosemont, PA
In 2008 – 2009 we upgraded the two original 1995 CNG stations as part of the new high school development project at two separate locations. We worked in conjunction with various contractors involved with the new school complex site work while maintaining timelines to have a functional fueling site before school resumption. This involved the demolition of the existing site & upgrades to gas-electric & the construction of a new brick building to house the duplex 250 SCFM compressors, valve panel, PLC control, regen dryer, remote soft starters & ethernet communications system. Fueling islands were about 300 feet from the compressor compound, including a card reader system & lighting. An ASME-certified cylinder manufacturer fully refurbished the storage cascade, and the control panel and dispenser were refurbished by Air & Gas Technologies.
Click on any photo to see a large slideshow.
Duplex Compressor System, Refurbished Customer’s ASME Cylinders
Equipment housed inside a self-contained building for aesthetics & noise containment.
ASME’s Tubes 5,500 PSI – Lower Merion High School
2019 provided additional ASME storage to accommodate the fleet’s increased fueling requirements & upgrades to the PLC/HMI in conjunction with necessary compatibility. Due to footprint issues, we utilized tubes at one location & spheres at the other.
ASME Spheres 5,500 PSI – Harriton High School
Rose Tree School District – Media, PA
2014 Designed and built a CNG station for a school bus fleet. This included all site work upgrades to the electric and gas services. The initial phase included two (2) compressors; however, the site was designed for three (3) compressor units with all necessary preparations. Included are a dual hose fast-fill dispenser, three-pack ASME storage vessels, and upgrades to the fuel management system. Station set up for remote communication & notification of faults.
Click on any photo to see a large slideshow.
Duplex Compressor System, ASME Cylinders, Priotirty Panel & Dual Filtration
Custom Fabricated Simplex Compressor Unit
2016 Air & Gas Technologies installed a 3rd ,150 SCFM compressor unit and respective integration to site. This unit was custom built and fabricated at Air & Gas Technologies shop in conjunction with necessary Allen Bradley Automation.
Temple University – Philadelphia, PA
We designed two CNG Stations for Temple’s Philadelphia & Ambler campuses. These were also combination fast-fill & time-fill to support their busses and service vehicles.
Refurbished Simplex System
New Jersey University & School District CNG Projects
Princeton University – Princeton, NJ
2003 Designed & built a CNG fueling station in conjunction with Ford Motor Company (former Princeton alumni donated the busses) for a mini-bus program. This included a fast-fill and a time-fill platform. Additionally designed & installed a CNG system for indoor fueling of a CNG Zamboni ice rink resurface machine.
