Gas Pipes and Gas Cleaning
Gas Pipes
Cylinder Pressure Reducer
Single-stage, made of pressed brass
- Design according to DIN 477, with 2 pressure gauges
- Input 0-200 bar, output 0-10 bar
- Outlet R 1/4″-male, or R 3/8″-left-male for 199204 (hydrogen)
- Available for: Synthetic air, compressed air, nitrogen, helium/argon/carbon dioxide, hydrogen
- Other gases on request

Matching Connectors
On tube OD 2 mm, 1/8″, 6 mm, ¼” and hose nipple 6 mm

Connection nut SW 17
Shut-Off Valves and Distribution Pieces
Available for
- 2 connection points
- 3 connection points
Design as before, but with MS crosspiece and 3 ball valves


Gas Cleaning
Gas purification is an indispensable element of gas chromatographic analysis. Even small traces of oxygen destroy the stationary phase in the capillary separation columns. However, other impurities such as moisture and hydrocarbons also affect the GC system and the analysis results.
In every gas line, the quality of the outlet gases is impaired by diffusion. What good is a purity of 5.0 or better in the gas cylinder if the wrong pipe material (e.g. plastic pipes), long pipe systems, many connections and T-pieces etc., cause impurities to enter the gas through diffusion or micro-leaks? This can only be remedied by cleaning the gas immediately before the instrument!
System CS
For removing hydrocarbons or moisture from in-house compressed air
Filter tube with connections for gas line with OD 1/8″, 6 mm or ¼”, other connections possible, refillable
Length 150 mm, OD x ID = 12 x 10 mm, volume 12 mL, maximum pressure: 100 bar
Activated Carbon Filter Type CS
Effective up to 2 L/min, n-hexane adsorption ≥ 30% = approx. 1500 mg

Molecular Sieve Filter 4Å, Type CS
Effective up to 2 L/min, water adsorption ≥ 20% = approx. 1800 mg

Large Filter Unit, CS System
Prerequisite: Moisture and oil filter at the compressor outlet!
Filter unit consists of:
Stainless steel tube 250 x 24 x 20 mm, volume 80 mL, filled with activated carbon and molecular sieve 4Å
Inlet and outlet screw connections optionally for 1/8″, 6 mm or 1/4″ AD tubes, other connections possible, refillable

SGT Super Clean Gas Filter
The SGT Super Clean gas cleaning system offers the following advantages:
- Application for gases: He, H2, N2, Ar, air (see description)
- Highest cleaning capacity at < 0.1 ppm contamination
- Triple filter = only one filter for oxygen, moisture and hydrocarbons
- Separate indicators for oxygen and humidity
- High economic efficiency through the use of cheaper gases
- Return of used filters
- Use for all non-corrosive gases with less than 0.5 % oxygen
- Maximum pressure: 11 bar (160 psi), maximum flow: 7 L/min, size 24 x 4.4 cm, weight 260 g

Base Plate with 3 Filters

Hydrocarbon Filter

Triple Filter
SGT Click On In-Line Gas Filter
For installation into the gas line



