ptf600 differential pressure flow meter

The most popular flow metres are differential pressure flow meter sensors. The significant number of appearances reflects the extensive quantity of experience (the measuring technique has been around for 100 years). The volume flow of gases, liquids, and steam are measured with a differential pressure flow metre. They’re beneficial in conditions involving high pressure, high temperature, or large diameter. Chemical, oil, gas, and power sectors are the most common places to find them.
Clean media, such as solvents, chemicals, cooling water, oil, gas, steam, and compressed air, can be measured with differential meters. Backflow preventers, pipelines, heat exchangers, and other related equipment are common commercial and industrial applications.

When Should A Differential Pressure Flow Sensor Be Used?
In general, you choose a differential pressure flow metre because the measuring principle is standardised in ISO 5167, ensuring that the measurement results are accurate.

Differential pressure flow meters have the following advantages:

Conceptually, it’s a fairly straightforward one.
They can be built out of various materials and used in a variety of gases and liquids.
Temperatures range from -270°C to +500°C, making them suitable for both cold and hot environments.
Because they can be welded, there are fewer potential leak sites.
Measuring element made to measure for the application
It can be employed in huge pipes (up to a few metres in diameter)
Construction is straightforward and durable.
Installation and removal are simple.
They can handle a variety of flow rates and pipe sizes.
They have the ability to configure in a bidirectional flow.
It can be used to measure both liquid and gas flow rates.
Because it has no moving parts, this gadget is maintenance–free (or very low maintenance).
It is offered in a variety of sizes.

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  •  32:1 wide turn down ratio, cover most of the flow range of compressed air
  •  No pressure loss, suitable for pipe in any shape with known sectional area
  • Insertion type capable of DN25 ~DN400 pipe line
  • Self-diagnose function makes trouble shooting easier
  • Blue tooth function optional, available for reading one cell phone.


Insertion type

In-line type

Media Compatibility

Dry and wet air

Pipe diameter



Different pressure range

6~6220 Pa, please reference to next subject on how to calculate flow rate range


1% RD+ ±0.5% FS

Temperature of medium

– 25 ~ +120°c

Pressure of medium



Power supply

AC85~264V or DC 15~32V

Response time

1 second



Date displayed

Mass flow, Volume flow in normal condition

Total flow , Temperature of medium. Velocity

Ingress protection grade

IP65 (GB China)

Compressed air net-working on-line monitoring

PTF600-compressed air-net-working online monitoring

Model Selection

Model Basic Model PTF-600 D 1 T 1 1 N C 1 1 Q  
Process Connection Insertion (NPT)(with anti-ejection design) D                    
Insertion (with flange) G                    
Flanged in-line F                    
  255mm, 11mm dia (DN25~DN100)   1
320mm, 11mm dia (DN25~DN250)  2
395mm, 11mm dia (DN25~DN400)  3                  
Other Q                  
Transmitter Integral T                
Remote R                
Material OCr18Ni9(304) 1              
316 2              
Other Q              
Pressure Rating 1.6 Mpa 1            
2.5 Mpa 2            
4 Mpa 3            
Max Temperature Standard (T≤120℃) N          
Enclosure Comate blue enclosure C        
Output RS485 + Bluetooth 1      
4~20mA + RS485 + Bluetooth 2
Power supply 13.5~42VDC 1  
85~265VAC 50/60Hz 2  
Flange Standard For Chemical industry A  
GB China B  
Other Q  
Pipe size please use 3 digit pipe size, such as DN50=050, DN300=300 XXX
1. Ball valve, Hop-tap insertion tool and hot-tap hole opener are as accessories, please remark if you need any of them
2. Please indicate flow rate along with the model number selected
3. If you have any requirement that could not be fulfilled in this document, please check with us to see the availability
4. The model selected in 1st line is the standard configuration with no accessories