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NG Series Screw Gas Ends

Screw Gas-ends

TM.I.C. specializes in the production of Oil-Injected Screw Gas Ends, tailored for every type of gas application. Our NG series, comprising nine sizes, is capable of achieving a suction pressure of 1 barg (14.5 psig) and a discharge pressure of 20 barg (290 psig), with a maximum achievable flow of 90 m³/min (3200 cfm).

Each unit is equipped with a gear ratio, mechanical seal, and top-quality bearings, making them suitable for various gas compositions. The quality and reliability of our products are ensured by the extensive experience we have gained in the field.

Engineered gas compression for demanding OEM applications

In gas compression, performance is defined by consistency, durability, and the ability to adapt to different gas compositions and operating demands. The NG Series screw gas ends from TMIC are designed as oil-injected, single-stage compression elements that deliver reliable performance across a wide range of industrial, energy, and process applications.

Developed for OEM integration, the NG Series provides a scalable solution for handling natural gas, biogas, methane, and process gases, helping manufacturers design robust compressor packages for upstream, midstream, and industrial use cases. With multiple frame sizes and a broad operating envelope, these gas ends enable flexibility without sacrificing efficiency or reliability.

Designed for versatile gas applications

The NG Series is explicitly built to support diverse gas compositions, making it suitable for industries where gas quality and process conditions vary. TMIC positions these gas ends for applications such as oil & gas, petrochemical processing, vapor recovery units, and biogas systems, where stable compression and sealing integrity are critical.

Each unit incorporates mechanical seals, optimized gear ratios, and high-quality bearings, allowing reliable handling of gases with different chemical and physical properties. This makes the NG Series particularly valuable for OEMs developing equipment for dynamic environments where reliability and adaptability are essential.

Wide performance range for scalable system design

One of the key strengths of the NG Series is its broad performance envelope, supporting OEMs who need to design multiple compressor variants within a single product platform.

The range includes multiple sizes (NG 8 through NG 36), covering:

  • Power range from approximately 7.5 kW up to 900 kW
  • Flow capacity from 0.7 to 90 m³/min
  • Maximum discharge pressure up to 20 barg

This scalability allows OEMs to design both compact systems and large industrial compression packages within the same technology family. It also simplifies engineering, procurement, and servicing by standardizing components across different system capacities.

Integration-ready architecture for OEM packages

The NG Series is designed with OEM integration in mind, featuring bare-shaft configuration and integrated gearbox options. This architecture allows flexibility in matching the gas end to different drive systems, including electric motors and engine-driven configurations.

The inclusion of single-stage compression with an integrated gear system simplifies package design while supporting efficient speed matching for optimal operating points.

For OEM manufacturers, this means:

  • Easier mechanical integration into compressor packages
  • Compatibility with different layout constraints
  • Reduced engineering complexity when standardizing system platforms

This flexibility is critical in shortening development cycles and ensuring performance consistency across product lines.

Proven durability backed by engineering expertise

TMIC’s NG Series benefits from extensive experience in oil-injected screw compressor design, resulting in components built for long service life even in harsh industrial environments.

The use of robust bearings, precision gear systems, and proven sealing solutions supports continuous operation under high pressure and variable load conditions. The design focus is on minimizing wear, improving operational stability, and maintaining consistent output over time.

For customers and OEM partners, this translates into:

  • Reduced unplanned downtime
  • Lower lifecycle maintenance costs
  • Reliable operation in both land-based and marine applications

The NG Series is not just a component—it is a core element that supports the overall performance and competitiveness of your compression system.

NG 8 Product Parameters

 

MEASURE

MIN

MAX

Power range 

kW

7,5

22

Power range 

HP

10

30

Flow range 

m3/min 

0,7

2

Flow range 

cfm 

25

70

Max allowable working pressure 

barg/psig 

17/245 

17/245

* referred to 10 barg

NG 8

NG 9 Product Parameters

 

MEASURE

MIN

MAX

Power range 

kW

15

30

Power range 

HP

20

40

Flow range 

m3/min 

0,5

3

Flow range 

cfm 

50

105

Max allowable working pressure 

barg/psig 

16/230

16/230

* referred to 10 barg

NG 9

NG 13 Product Parameters

 

MEASURE

MIN

MAX

Power range 

kW

30

75

Power range 

HP

40

100

Flow range 

m3/min 

3

8

Flow range 

cfm 

105

280

Max allowable working pressure 

barg/psig 

20/290

20/290

* referred to 10 barg

NG 13

NG 14 Product Parameters

 

MEASURE

MIN

MAX

Power range 

kW

37

110

Power range 

HP

50

150

Flow range 

m3/min 

4

13

Flow range 

cfm 

140

460

Max allowable working pressure 

barg/psig 

20/290

20/290

* referred to 10 barg

NG 14

NG 21 Product Parameters

 

MEASURE

MIN

MAX

Power range 

kW

75

200

Power range 

HP

90

250

Flow range 

m3/min 

7

20

Flow range 

cfm 

250

700

Max allowable working pressure 

barg/psig 

20/290

20/290

* referred to 10 barg

NG 21

NG 22 Product Parameters

 

MEASURE

MIN

MAX

Power range 

kW

90

250

Power range 

HP

120

330

Flow range 

m3/min 

9

22

Flow range 

cfm 

315

775

Max allowable working pressure 

barg/psig 

20/290

20/290

* referred to 10 barg

NG 22

NG 30 Product Parameters

 

MEASURE

MIN

MAX

Power range 

kW

132

400

Power range 

HP

180

550

Flow range 

m3/min 

17

50

Flow range 

cfm 

600

1760

Max allowable working pressure 

barg/psig 

20/290

20/290

* referred to 10 barg

NG 30

NG 36 Product Parameters

 

MEASURE

MIN

MAX

Power range 

kW

400

900

Power range 

HP

550

1200

Flow range 

m3/min 

45

90

Flow range 

cfm 

1575

3200

Max allowable working pressure 

barg/psig 

20/290

20/290

* referred to 10 barg

NG 36
  • Oil Injected Screw Compressors;
  • Bare shaft;
  • Single Stage;
  • 8 sizes;
  • Integrated gear-box;
  • Mechanical Seal

FAQs

The NG Series screw gas end is designed for compressing industrial and process gases such as natural gas, biogas, methane, and other hydrocarbon mixtures. It is typically integrated into OEM compressor packages used in oil and gas operations, petrochemical processes, vapor recovery systems, and energy applications. Its design supports stable handling of varying gas compositions, making it suitable for environments where operational conditions frequently change.