Neon Gas Compressor

Neon (Ne) is an extremely precious rare inert gas. It is chemically unreactive and, under standard conditions, is colorless, odorless, and tasteless. Its boiling point (-246.15 °C) and critical temperature (-228.7 °C) are extremely low, making it a critical gas for cryogenic technology. Although it is non-flammable and non-toxic, it is an asphyxiant gas, and its accumulation in confined spaces must be strictly prevented. Due to its characteristic of emitting a bright red glow during electrical discharge, neon is widely used in high-end applications such as neon signs, discharge tubes, lasers, and semiconductor processes. These applications place core demands on compressors for absolute gas purity assurance, maximum leakage prevention, and stable and reliable operation.

DIAPHRAGM COMPRESSOR

PISTON COMPRESSOR

Advantages of Neon Diaphragm Compressor:

01

Ultimate Gas Cleanliness – Oil-Free Compression Ensures High Purity:

The diaphragm compressor uses a metal diaphragm to completely physically isolate the hydraulic oil from the compressed gas, achieving truly 100% oil-free compression. This core mechanism ensures that the precious neon gas is never contaminated by any hydrocarbons, lubricating oil, or particulates throughout the boosting process. Its purity can be stably maintained at an extremely high level of over 99.999%, perfectly matching demanding high-purity applications such as semiconductor manufacturing and high-precision lasers.
02

Superior Static Sealing – Eliminates Leakage, Ensuring Safety and Economy:

In a diaphragm compressor, the gas is completely sealed within the chamber formed by the metal diaphragm and the curved surface of the cylinder head. This structure fundamentally eliminates the dynamic sealing points found at the piston rod in traditional compressors, thus excellently preventing the leakage of valuable neon gas to the outside. This directly guarantees operational economy by avoiding the loss of rare gases, achieving a unity of high efficiency and safety.

Key Design Points for Neon Diaphragm Compressor:

01

Material Compatibility and Pretreatment:

Although neon is chemically inert and non-corrosive, to ensure ultra-high purity and long-term reliability, all gas flow-wetted components should be made of austenitic stainless steel (e.g., 304, 316L). These components must undergo strict degreasing, cleaning, and passivation before assembly to ensure that the residual surface oil and grease is below the standard (e.g., ≤300 mg/m²), thereby eliminating any potential source of contamination.
02

Diaphragm Safety Monitoring and System Protection:

The diaphragm is the core of isolation and sealing. A highly sensitive diaphragm rupture monitoring and alarm system must be installed. In the event of diaphragm damage, the system should immediately alarm and interlock to shut down, preventing hydraulic oil from mixing with neon. At the same time, an independent safety valve must be installed after each compression stage, with its set pressure precisely calibrated to provide reliable overpressure protection for the system.
03

Thermal Management and Operating Parameter Optimization:

Although the adiabatic index of neon is not as extreme as that of helium, attention must still be paid to the temperature rise during compression. The cooling channels of the diaphragm cavity should be optimized during design to ensure adequate cooling, bringing the compression process closer to an isothermal process to control the discharge temperature, protect the diaphragm, and improve operating efficiency. For different operating conditions such as neon recovery or filling, variable frequency drive or precision bypass regulation functions should be integrated to achieve flexible and stable flow control.

Certificate

MODEL SELECTION

Model G70Z/G95Z/G110Z/G130Z	Piston Stroke 70mm~130mm	Maximum Piston Force 10KN~30KN
Maximum Discharge Pressure 70Mpa	Flow Range 1~500Nm³/h	Motor Power 2.2KW~30KW
Crankshaft Speed 420rpm	Cooling Method Water Cooled/Air Cooled

Model G70V/G95V/G130V	Piston Stroke 70mm~130mm	Maximum Piston Force 10KN~30KN
Maximum Discharge Pressure 50Mpa	Flow Range 1~200Nm³/h	Motor Power 2.2KW~30KW
Crankshaft Speed 420rpm	Cooling Method Water-cooled / Air-cooled

Model G110L/G130L	Piston Stroke 110mm~130mm	Maximum Piston Force 20KN~40KN
Maximum Discharge Pressure 100Mpa	Flow Range 10~1000Nm³/h	Motor Power 7.5KW~90KW
Crankshaft Speed 420rpm	Cooling Method Water-cooled / Air-cooled

Model G110D/G130D/G150D/ G180D/G182D/G210D	Piston Stroke 110mm~210mm	Maximum Piston Force 20KN~160KN
Maximum Discharge Pressure 100Mpa	Flow Range 30~2000Nm³/h	Motor Power 22KW~200KW
Crankshaft Speed 420rpm	Cooling Method Water-cooled / Air-cooled

Diaphragm type compressor

Piston stroke 70mm

Flow(Nm3/h)

Inlet pressure(barg)

Outlet pressure(barg)

No.	Model	Cooling water	Flow	Inlet pressure	Outlet pressure	Dimensions L×W×H	Weight	Motor Power
No.	Model	(L/h)	(Nm³/h)	(MPa)	(MPa)	(≈mm)	(≈kg)	(kW)
1	GZ-30/5-10	300	30	0.5	1	1400×740×1330	700	3
2	GZ-15/3-19	400	15	0.3	1.9	1400×740×1330	750	4
3	GZ-50/9.5-25	600	50	0.95	2.5	1500×760×1200	750	5.5
4	GV-10/4-160	400	10	0.4	16	1330×740×1080	650	4
5	GV-7/8-350	1000	7	0.8	35	1300×810×920	1000	11
6	GV-10/10-150	1000	10	1	15	1330×740×920	700	7.5
7	GL-70/5-35	1500	70	0.5	3.5	2000×1000×1200	3000	15
8	GL-20/10-150	1500	20	1	15	2200×1200×1300	3000	15
9	GL-33/10-700	1500	33	1	70	1850×1100×1400	3000	18.5
10	GD-80/0.12-4	2000	80	0.012	0.4	3200×1600×1500	3800	15
11	GD-100/0.1-5	2000	100	0.01	0.5	2800×1500×1500	3000	18.5
12	GD-100/5.5-200	5000	100	0.55	20	3200×2000×1500	4500	45

The equipment size and weight are for reference only, and the final design shall prevail.

Click to See More

CASE STUDY

Russia
UNITED STATES
Spain
Kazakhstan

Advantages of Neon Reciprocating Compressor:

01

Excellent Volumetric Efficiency and Remarkable Economy, Suitable for Large-Volume Processing:

When the application requires large neon processing volumes and is sensitive to investment and operating costs, the oil-free reciprocating compressor is a durable and cost-effective choice. Its technology is mature, achieving higher volumetric efficiency at medium discharge pressures, which translates to greater actual displacement for the same power input. Moreover, its initial investment and maintenance costs are typically lower than those of a diaphragm compressor of the same specification. Wearing parts have a long service life and are easier to replace, providing a cost-effective solution for large-scale neon boosting, transportation, or primary purification processes.
02

Strong Operating Condition Adaptability and Flexible Flow Regulation Capability:

The reciprocating compressor possesses excellent adaptability to operating conditions and can easily handle wide fluctuations in suction pressure. More importantly, it can smoothly and precisely regulate the discharge volume over a wide range through various methods such as variable frequency drive, suction throttling regulation, or bypass recirculation. This flexible regulation capability allows it to easily adapt to changing process demands in chemical plants or common condition variations in the gas supply chain, ensuring the system consistently operates at optimal performance.

Key Design Points for Neon Reciprocating Compressor:

01

Thorough Oil-Free Lubrication and Anti-Corrosion Design:

Piston rings, rider rings, and guide rings inside the cylinder must be manufactured from PTFE-based self-lubricating materials to ensure absolutely no oil in the compression chamber. Although neon is non-corrosive, all components in contact with the gas should still be made of stainless steel and undergo surface passivation treatment to create a highly clean and inert compression environment, preventing contamination and extending equipment life.
02

Targeted Temperature Control and Sealing Strategy:

The multi-stage compression and interstage cooling system must be rationally designed based on the target discharge pressure. High-efficiency coolers should be installed after each stage to strictly control the discharge temperature below 150 °C, which is crucial for protecting the self-lubricating materials and ensuring long-term stable operation. Given neon's small molecular size, the sealing system of the piston rod packing must be carefully designed. Multi-section composite packing can be used, and following the principles of the API 618 standard, the introduction of clean nitrogen as a buffer gas or purge gas should be considered to further ensure "zero leakage" and isolate external air.
03

Comprehensive Safety and Purity Assurance System:

A low-point oxygen concentration monitoring and alarm device must be installed in the compressor room to prevent the risk of oxygen deficiency caused by neon leakage and accumulation. Sufficiently sized buffer tanks must be installed on the inlet and outlet pipelines to effectively dampen the inherent pressure pulsation of the reciprocating compressor, ensuring stable downstream processes. A high-precision dust filter should be installed at the suction end to prevent particles from entering the cylinder. For occasions requiring extremely high purity, micron-level filters or catalytic purification devices can be added to the inlet piping as an additional purity safeguard.

Certificate

MODEL SELECTION

Z Type

V / W Type

M Type

D Type

Piston stroke 80mm, 95mm	Piston force 10KN～25KN
Number of compression stages 1/2/3/4	Number of cylinder banks 1/2
Crankshaft speed 740 rpm, 980 rpm	Power 7.5KW-55KW
Drive mode Electric motor, diesel engine, natural gas engine

Piston stroke 92mm~120mm	Piston force 25KN~65KN
Number of compression stages 1/2/3/4	Number of cylinder banks 2/3/4
Crankshaft speed 740 rpm, 980 rpm	Power 15KW-220KW
Drive mode Electric motor, diesel engine, natural gas engine

Piston stroke 92mm~315mm	Piston force 45KN~660KN
Number of compression stages 1/2/3/4	Number of cylinder banks 4
Crankshaft speed 300rpm~980rpm	Power 160KW-3000KW
Drive mode Electric motor, diesel engine, natural gas engine

Piston stroke 92mm~315mm	Piston force 25KN~200KN
Number of compression stages 1/2/3/4	Number of cylinder banks 2
Crankshaft speed 300rpm~980rpm	Power 30KW-1000KW
Drive mode Electric motor, diesel engine, natural gas engine

Vertical type

Oil-free / F: Air-cooled

0.6

Actual volume flow (m3/min)

Inlet pressure(barg)

Outlet pressre(barg)

Vertical type

Oil-free / F: Air-cooled

0.6

Actual volume flow (m3/min)

Inlet pressure(barg)

Outlet pressure(barg)

Vertical type

Oil-free / F: Air-cooled

0.6

Actual volume flow (m3/min)

Inlet pressure(barg)

Outlet pressre(barg)

Vertical type

Oil-free / F: Air-cooled

0.6

Actual volume flow (m3/min)

Inlet pressure(barg)

Outlet pressre(barg)

S/N	Model	Flow	Inlet pressure	Outlet pressure	Motor power
S/N	Model	(Nm³/h)	(Mpa)	(MPa)	(kW)
1	ZW-0.6/2-25	90	0.2	2.5	30
2	ZW-1.4/2-40	250	0.2	4	37
3	ZW-1.5/1-12	180	0.1	1.2	22
4	VW-7.2/2.5-6	1200	0.25	0.6	45
5	VW-7.2/1-22	800	0.1	2.2	132
6	VW-9.7/1-10	1100	0.1	1	110
7	DW-1.2/2-50	400	0.2	5	45
8	DW-3.8/10-40	2300	1	4	132
9	DW-11/4-20	3000	0.4	2	250
10	MW-7/2-40	2000	0.2	15	132
11	MW-5/20-30	600	2	16	250
12	MW-20/10-45	21000	1	4.5	1000