VSR-11ES

Introduction

• Dual stage gas pressure regulator

• Brass chrome plated body and bonnet for inert, reactive, flammable and oxidizing gas and mixtures up to grade 6.0

• Stainless steel 316L body and bonnet for corrosive gases

• Stable outlet pressure

• Inlet filter

• Simple outlet pressure limitation by handwheel

• Tested for use with oxygen

Inlets / Outlets(can be chosen):

DIN: Germany

CGA: USA

BSP: British

GB: China

UNI: Italy

NF: French

JIS: Japan

F4: 1/4" NPT(F)

M4: 1/4" NPT(M)

02: 1/8" Tube fitting

04: 1/4" Tube fitting

06: 3/8" Tube fitting

6M: 6mm Tube fitting

8M: 8mm Tube fitting

Dual Stage Gas Pressure Regulator

A dual-stage gas pressure regulator is a highly reliable and stable device designed to reduce the pressure of gas from a high-pressure source in two stages. Unlike single-stage regulators, which reduce pressure in one step, a dual-stage regulator has two separate stages, making it more effective at maintaining a consistent output pressure.

How It Works

First Stage: The gas enters the regulator and is reduced to an intermediate pressure.
Second Stage: The gas is then further reduced to the desired lower pressure, ensuring a more stable and constant output, even as the gas supply pressure fluctuates.

Advantages

More Stable Pressure: Dual-stage regulators provide more consistent pressure control, even when the cylinder pressure changes during use.
Better Performance: Ideal for applications requiring precise and stable gas flow, such as laboratories or industrial settings.
Longer Cylinder Life: By reducing the fluctuations in output pressure, it reduces wear on downstream equipment and ensures better performance over time.

Common Issues

1.Unstable Output Pressure:

Cause: A problem with the spring or valve in the regulator.

Solution: Check and adjust the regulator's components to ensure they're functioning correctly.

2.Leakage:

Cause: Damaged seals or improper installation.

Solution: Inspect the seals and connections, and replace any worn or faulty parts.

3.Slow Adjustment of Pressure:

Cause: Blocked or clogged adjustment components.

Solution: Clean the adjustment mechanism or replace any faulty parts.

4.Inconsistent Flow Rate:

Cause: Contamination or debris in the dual stage gas pressure regulator.

Solution: Regularly maintain and clean the regulator to prevent build-up that could affect performance.

Application

• Component Testing

• Calibration Systems

• Laboratory Pressure Control

• High Pressure Sampling Systems

• Service & Test Equipment

Technical parameters

Type	Dual-stage
Inlet pressure P1	max. 300 bar
Outlet pressure P2	2/4/8/10/20 bar
Materials
Body regulator, Relief valve	SS316L / chrome plated brass
Valve seat	PCTFE
Diaphragm	Hastelloy® C276
Filter	SS 316L
Inlets and Outlets	1/4" NPT(F)
Temperature range	-30℃ to +74℃
Leak rate	(to atmosphere)1x10-8 mbar I/s He
(Via seat)	1x10-6 mbar I/s He
Flow capacity	Cv=0.07
Weight	2.10kg