Bidirectional Flange Pig Signaler

  • Bidirectional Flange Pig Signaler
  • Bidirectional Flange Pig Signaler
  • Bidirectional Flange Pig Signaler
  • Bidirectional Flange Pig Signaler
  • Bidirectional Flange Pig Signaler
  • Bidirectional Flange Pig Signaler
  • video
Bidirectional Flange Pig Signaler
  • EMT
  • Shenyang, China
  • 15 days
  • 200 sets/month

The Bidirectional Flange Pig Signaler is the necessary equipment in the pipeline pass-through pipe cleaning process.Bidirectional Flange Pig Signaler is fixedly installed above the pipeline to determine whether the pig has passed the test point. Bidirectional Flange Pig Signaler can provide information to the operator through secondary sources such as light, point, sound or special clock to guide the switching process.


flange pig signaler 

Bidirectional Flange Pig SignalerPig Indicator

The Pig Indicator, also known as the Bidirectional Flange Pig Signaler, is utilized to ensure the accurate

 tracking of pipeline pigs as they traverse through the pipeline. These signalers are typically installed 

at both the pig launching and pig receiving stations, as well as at strategic locations along the pipeline.

 Their primary function is to provide reliable confirmation of pig movement in both directions.

Benefits of EMT Pig SignallerPig Indicator

Three trigger type:

1.     Bi-directional

2.     Bi-directional Feather

3.     Uni-directional

Three Pig Indicator types are available:

1.     B_Manual reset flag

2.     C­_Manual reset flag combined with electrical switch output

3.     D_Digital display combined with electrical switch output

Three mounting types:

1.     2″flange connection

2.     2″welded nipple

3.     2″welded base- NPT nipple connection

Bidirectional pig signaler

Features of EMT Pig Signaller

  • It is suitable for pipe sizes starting from 2" and above.

  • Various design pressure options are available, ranging from ANSI 150# to ANSI 2500# for the 2" flange connection.

  • The boss connection can handle the highest design pressure of 10,000 Psi (69 MPa).

  • The working temperature range spans from -20ºC to +120ºC. In case of operating temperatures outside this

  • range, special seals can be provided.

  • The trigger mechanism of the signaller is designed without dynamic seals, ensuring both leak prevention and

  • trigger flexibility (excluding the boss connection with pop-up indicator or digital display). The flag of the signaller

  • is interactive with the trigger mechanism.

Furthermore, the online checking of the trigger mechanism's flexibility is possible.

  • It can fulfill the need for adjusting the insert depth as required.

  • The Pig Signaller is designed for ease of operation, demonstrating proven durability and requiring minimal maintenance.

  • It is compatible with various types of pipeline pigs, including Foam Pig, Metal Bodied Pigs, Spheres, and Intelligent

  • Detection Pig, making it suitable for diverse pig applications.

pig signallerflange pig signaler

Pig Signaller - flange connection


Pig Signaller Basic Feature or Parameter          

                                                                   Pig Indicator code                







 Indicator feature

Manual reset flag

Manual reset flag combined with electrical signals

Date and time display combined with electrical signals

Installing type

2″Flange.As per ASME B16.5 (CLASS150~2500)

Plug body length
_Correspond to total stand off

200mm/Meet the actual needs

Operating temperature

—20~120℃/Meet customer requirements

NACE MR – 01- 75


Ingress protection


Explosion-proof class

ExdⅡ BT4

ExdⅡ BT4

Remove under pressure


Bidirectional Pig Signaller Optional Feature

√ Standard configuration

X Optional configuration


Trigger type
(B-bi-directional/F-Bi-directional feather



Trigger mechanism-Flag interaction
(No/Yes_ The flexibility of trigger mechanism would be checked online)




Internal part material


Flange/Body material


/As per MR)


The position of Internal liquid surface

(High_Need to heating/Low_With no need for heating)


Junction box material

(Aluminium alloy/316SS)




Switch type





Switch rating

(DC24V 3A/DC24V 5A)




Electrical connection size





* Standard configuration of Uni-directional trigger is ball shape.

Corresponding relations between trigger and Insert depth (In pipe)

Trigger type


Bi-directional feather


Insert depth (In pipe)




Why Choose Us
Bidirectional pig signaler

pig signaller

flange pig signaler

Bidirectional pig signaler

What is the MOQ ?
1 piece....more
Certification ISO9001,ISO45001,ISO14001
Certification ISO9001,ISO45001,ISO14001
Get the latest price? We'll respond as soon as possible(within 12 hours)

Privacy policy

close left right