A gas plant in Zixing, working to its own licences
Hunan Heyun Gas Co., Ltd. fills, stores and ships nitrous oxide and industrial gases from Zixing, Hunan Province, China. Founded in December 2021, the company holds the full set of Chinese licences its trade requires: hazardous chemical business, cylinder filling, and accreditation as a special-equipment inspection body. Deliveries go out on our own dangerous-goods vehicles. Nitrous oxide is the core line, filled in 3.3 L and 40 L cylinders, alongside oxygen, carbon dioxide, argon, nitrogen, acetylene and propane.
Cryogenic storage, filling on electronic-weighing lines and statutory cylinder inspection all happen on our own site, under our own accreditation. Nothing in that chain is subcontracted, so there is no step where responsibility changes hands.
What we hold ourselves to
- Safety first
- Quality held to spec
- Delivered on schedule
- Straight dealing
- Established
- December 2021
- Registered capital
- CNY 8.88 million
- Legal representative
- Wang Huajiang
- Location
- Zixing, Chenzhou, Hunan, China
Around the site
Separate filling bays keep the oxygen line and the two nitrous oxide lines apart, each with its own weighing and check station.
Administration area
Site office, safety management and documentation.
Oxygen filling bay
Manifold filling of compressed oxygen into seamless steel cylinders.
N₂O 3.3 L filling bay
Electronic-weighing filling line for 3.3 L nitrous oxide cylinders, with packing to order.
N₂O 40 L filling bay
Filling line for 40 L seamless steel nitrous oxide cylinders.
Everyone on the floor is certified
Filling, inspection, escorting and driving dangerous goods each require individual government certification in China. Our team holds 23 of these certificates between them, and duty staff are on site around the clock.
- Principal safety manager
- 1
- Safety managers
- 2
- Filling operators
- 6
- Cylinder inspectors
- 6
- Dangerous-goods escorts
- 4
- Dangerous-goods vehicle drivers
- 2
- Forklift operators
- 2
What that adds up to for a buyer
Nearly the full gas range
Nitrous oxide, oxygen, carbon dioxide, argon, high-purity argon, nitrogen, acetylene and propane. Compressed and cryogenic, across the common cylinder sizes.
Tested by accredited bodies
Every gas and every pressure vessel is tested by nationally accredited institutions. Batch certificates of analysis accompany shipments.
Our own dangerous-goods fleet
Licensed hazardous-goods vehicles with certified drivers and escorts, so delivery schedules do not depend on a third party's queue.
Staffed around the clock
Duty personnel are on site 24 hours a day. Urgent loading and enquiries do not wait until the next working morning.