Product Introduction

The PTFE-Lined Tantalum Diaphragm Compound Vacuum Pressure Gauge is designed to measure both vacuum and positive pressure in industrial process systems.

It uses a diaphragm sensing element to measure low pressure while isolating the gauge mechanism from the process medium. The process connection is a DN25 PN16 RF flange, with an SS304 flange and a Tantalum (Ta) diaphragm.

The wetted parts include a PTFE-lined flange and Tantalum diaphragm, providing corrosion resistance for suitable aggressive process media.

With 60 mm and 100 mm dial options, the gauge is suitable for chemical processing, petrochemical equipment, water treatment, pharmaceutical equipment, process pipelines, and chemical tanks. Specifications can be customized according to customer requirements.

Applications

Chemical Processing

For pressure and vacuum monitoring of compatible corrosive process media.

Chemical Storage Tanks

Suitable for monitoring vacuum and positive pressure in chemical vessels.

Petrochemical Equipment

Used for pressure measurement where corrosion-resistant wetted materials are required.

Oil & Gas Equipment

Applicable to suitable process equipment and pipelines.

Water & Wastewater Treatment

Used for pressure and vacuum monitoring in treatment systems.

Pharmaceutical Equipment

Suitable for compatible process applications requiring diaphragm isolation.

Process Pipelines

Used for low-pressure, vacuum, and positive-pressure monitoring.

Corrosive or Viscous Media

The diaphragm structure isolates the internal gauge mechanism from the process medium.

Key Features

1. Vacuum and Positive Pressure Measurement

Measures both negative gauge pressure and positive pressure in one mechanical gauge.

2. Tantalum Diaphragm

The Tantalum (Ta) diaphragm provides high corrosion resistance for suitable aggressive process media.

3. PTFE-Lined Wetted Parts

The flange is lined with PTFE to improve resistance to compatible corrosive media.

4. Diaphragm Sensing Element

The diaphragm design isolates the gauge mechanism from the process medium and is suitable for low-pressure applications.

5. Flange Process Connection

The standard process connection is a DN25 PN16 RF flange made of SS304.

6. Multiple Dial Sizes

60 mm and 100 mm dial sizes are listed for the product.

7. Customized Specifications

Pressure range, scale unit, dial configuration, and other specifications can be customized according to customer requirements.

Technical Specifications

Note: Specifications can be customized according to customer requirements.

Configuration Options

The gauge can be customized according to application requirements:

• Measuring range

• Dial size

• Pressure unit

• Process connection

• Flange specification

• Wetted material

• Diaphragm material

For corrosive media, please provide the medium name, concentration, temperature, and pressure for material compatibility evaluation.

Selection Guide

For quotation, please provide:

Pressure Requirement

• Vacuum / positive pressure / compound pressure

• Measuring range

• Pressure unit

Medium

• Medium type

• Corrosiveness

• Viscosity

Process Conditions

• Process temperature

• Operating pressure

Connection

• Flange size

• Pressure rating

• Flange facing

Gauge

• Dial size

• Required material

FAQ

Q1: What is a compound vacuum pressure gauge?

A compound vacuum pressure gauge measures both vacuum and positive pressure. This allows one gauge to monitor pressure below and above atmospheric pressure.

Q2: Why is a Tantalum diaphragm used?

Tantalum is used as the diaphragm material to provide corrosion resistance for suitable aggressive process media.

Q3: What is the purpose of the PTFE lining?

The PTFE lining protects the flange wetted surface from compatible corrosive process media.

Q4: Is this a diaphragm pressure gauge?

Yes. It uses a diaphragm sensing element and is designed for vacuum and positive-pressure measurement.

Q5: What is the standard flange connection?

The listed standard configuration uses a DN25 PN16 RF SS304 flange.

Q6: What is the standard measuring range?

The listed measuring range is -0.1 to 0.6 MPa, with Class 1.6 accuracy. Other specifications can be customized.

Request a Quotation

Please provide:

• Measuring range

• Vacuum / positive / compound pressure requirement

• Medium

• Medium concentration

• Process temperature

• Operating pressure

• Flange size and rating

• Dial size

• Pressure unit

• Quantity