Diffusion Gas Handling Regulator - Stainless Steel, 150 x 80 x 50 mm | 200 Bar Inlet Pressure, 0-10 Bar Outlet Pressure, 10 L/min Flow Rate, 1.5 kg Weight, 1/4 Inch Connection Gas Handling Regulator - Stainless Steel, 150 X 80 X 50 Mm | 200 Bar Inlet Pressure, 0-10 Bar Outlet Pressure, 10 L/min Flow Rate, 1.5 Kg Weight, 1/4 Inch Connection at Best Price in Kolkata | Special Gas & Equipment Solutions Pvt. Ltd.

Diffusion Gas Handling Regulator - Stainless Steel, 150 X 80 X 50 Mm | 200 Bar Inlet Pressure, 0-10 Bar Outlet Pressure, 10 L/min Flow Rate, 1.5 Kg Weight, 1/4 Inch Connection

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Product Specifications

Connections	1/4" NPT
Dimensions	100x50x80 mm
Features	High Purity, Precise Control, Leak-proof Design, Corrosion Resistant, Durable Material, Easy Installation, Reduced Contamination
Flow Rate	5 LPH
Inlet Pressure	10-300 bar
Material	Stainless Steel
Outlet Pressure	0-10 bar
Weight	1kg

Product Overview

Key Features

Diffusion

It is not only important to have the correct quality of gases, it is equally important to handle the gases by using equipment most suited for the application.

Contamination of pure gases and calibration gases by inappropriate regulators, tubing, flow meters, valves and connections etc. through diffusion and out gassing is a known phenomenon. Consequently, in order to obtain calibration and high purity gases in the specified quality at the point of use all metal non contaminating and diffusion resistant gas handling equipment like regulators, valves, non return valves, tubing and fittings.

Sources of Error When Transferring Gases

Reduction in component concentrations - increase in Absorbent Surface Area.

ERROR: Employment of unsuitable material
IMPACT: Chemical Reaction, especially in the presence of moisture.

Reduction in Assayed Components Contamination through undesired components

ERROR: Ad/Desorption on surface area.
IMPACT: Gas molecules are given off in the gas stream. Components adhere to surface area.

Pure gas constantly being contaminated

ERROR: Line leaks.
IMPACT: Partial pressure gradients between different gases forces gas molecules towards the side with lower partial pressure, regardless pressure.

Irregular contamination of pure gas, reducing after extended period of withdrawal.

ERROR: Dead volume is not taken in account.
IMPACT: Pressure drifts as well as the motion of the molecules themselves; contaminate the pure gas stream with foreign gases from the dead area.

Contamination of pure gas increase as hose length increases and temperature rises.

ERROR: Permeation through hose walls.
IMPACT: Even after first purge, foreign gas molecules enter stream of gas ( H₂O, CO₂, HC etc)

Retro Diffusion

An elaborate study was undertaken and it was found that Argon Gas (taken as a test gas for this study) with 5 ppm of Oxygen impurity at a pressure of 10 Bar when passed at the rate of 5 LPH through a rubber tube with 1 mtr long and 2 mm ID, got contaminated by atmospheric Oxygen and the level of Oxygen raised upto 40 ppm from 5 ppm. It is simply due to the difference in the partial pressure of the gas in the two environments. This phenomenon is called as RETRO DIFFUSION.

Retro Diffusion

Following table shall give you an idea about the other material that are commonly used in gas handling

Material: Contamination of O₂
Stainless Steel: 0 ppm
Mylar: 0.02 ppm
PTFE: 13 ppm
PVC: 27 ppm
Natural Rubber: 40 ppm

Careful consideration should therefore, be given in selecting the gas handling equipment. The choice of the gas handling equipment for pure gases and Calibration standards is governed by the nature of gas, the pressure involved, the flow rates desired and requirements of safety.

The function of a regulator is to convert the high pressure of gases to lower working ranges. Secondarily the regulator maintains constant working pressure on the outlet of the regulator inspite of variation in inlet pressures. This enables the process to be carried out without the need for constant manual adjustment. In addition, the regulator offers safer , low working pressures. A regulator controls the pressure but does not control flow and therefore, a flow control device is needed, where flow control is critical.

BOC offers a wide range of regulators designed to handle calibration gas standards and high purity gases for chromatography and other process applications. These are specially designed, engineered and quality assured to ensure diffusion resistance and handle safely a wide range of XL grade and other higher pure gases, Calibration Standards, Toxic and mildly corrosive gases.