Reliable Gas Handling Since the 1990s
Nantong Rongheng has evolved from the original three-blade roots design into a specialist for hazardous gas environments. Our equipment is manufactured under rigorous quality controls to serve the chemical and petrochemical sectors where gas integrity is critical.
| Sealing Type | Mechanical / Packing / Nitrogen |
| Gas Compatibility | H2, N2, CO2, Ar, etc. |
| Leakage Rate | <1x10^-6 mbar.l/s |
| Max Pressure | 100kPa (Single Stage) |
Chemical Applications
- Hydrogen gas circulation
- Nitrogen boosting for blanketing
- Flare gas recovery
- Vapor recovery units (VRU)
Alloy and Coating Options
Depending on the gas composition, we offer 304/316 stainless steel, Hastelloy coatings, or PTFE-treated internals to prevent chemical erosion and pitting.

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