Compressed Natural Gas (CNG) fueling systems demand uncompromising safety and performance — especially at the fill point. At Hampton Rubber, we offer DOT-approved high-pressure CNG fill hose assemblies designed to deliver maximum durability, compliance, and peace of mind.
Our assemblies use the Danfoss Synflex 35NG hose, a trusted standard in high-pressure CNG applications. Available in 1/4″, 3/8″, and 1/2″ sizes, this hose features:
- A conductive nylon core for safe static dissipation
- Synthetic fiber reinforcement for pressure resistance
- Black polyurethane cover for abrasion protection
- A wide temperature range of -40°F to +185°F
- Fully compliant with ANSI/CSA NGV 3.1, NGV 4.2, and NFPA 52
What sets Hampton Rubber apart is our on-site assembly capability and certification to assemble DOT-compliant fill hoses. Each assembly is pressure-tested and built to meet the highest regulatory standards — ready for safe installation.
Most importantly, we stock these products. While competitors often require long lead times, Hampton Rubber offers a reliable, in-stock supply — reducing your downtime and ensuring fast project turnaround.
When uptime, safety, and compliance matter most, Hampton Rubber is your go-to for high-pressure CNG fueling components.
📍 Visit hamptonrubber.com or contact our CNG team at cng@hamptonrubber.com.
Frequently Asked Questions:
- What sizes are available?
- 1/4”, 3/8”, and 1/2”
- Are assemblies tested?
- Yes — every hose is tested and certified.
- Can you ship quickly?
- Absolutely. Most assemblies are in-stock and ship fast.
- What certifications do the hoses meet?
- ANSI/CSA NGV3.1, NGV 4.2, and NFPA 52.