An intrusive pig detector is a device installed directly inside a pipeline. It detects the presence of a pig as it passes through. The detector’s design allows for accurate and reliable monitoring. It connects easily to the pipeline system, often using a flange fitting. This setup ensures a secure and leakage-free operation. Operationally, the device functions under a wide range of temperatures. It can handle extreme conditions, from very cold to quite hot. As the pig passes, the detector triggers a signal. This signal can be visual, auditory, or transmitted to a control system. These alerts help operators track the pig’s location accurately and in real time. Overall, the use of an intrusive pig detector enhances safety. It also increases the efficiency of the pigging operation. By providing timely data, it reduces the risk of pipeline damage. This tool is essential for maintaining smooth pipeline operations.

Different Types of Intrusive Pig Detectors

Pig Detector, Flange Connection

This pig detector is an intrusive model featuring a flange connection that complies with ASME B16.5 standards. It is designed with a standard 2” flange and a plug body that typically measures 200mm in length, although customization is available to meet specific customer requirements. The operating temperature for this device ranges from -20 to 120 degrees Celsius. It boasts an ingress protection rating of IP66 and meets the Exd II BT4 standard for explosion-proof classification. Importantly, it cannot be removed while under pressure.

Name	Pig Indicator
Connection	Flange Connection
Plug body length	200mm
Operating temperature	—20～120℃/Meet customer requirements
NACE MR 01- 75	Yes
Ingress protection	IP65/IP66
Explosion-proof class	ExdⅡ BT4
Remove under pressure	No
Trigger type	Bi-directional/Uni-directional
Adjustable length	0
Internal part material	316SS/DSS/INCONEL
Insert depth	21mm(Bi)/13mm(Uni)
Flange/Body material	PTFE coated A105N/304SS/316SS/DSS/INCONEL(As per MR)

20mm Adjustable Pig Detector-Flange Connection

Name	20mm Adjustable Pig Indicator
Connection	Flange Connection
Plug body length	200mm
Operating temperature	—20～120℃/Meet customer requirements
NACE MR 01- 75	Yes
Ingress protection	IP65/IP66
Explosion-proof class	ExdⅡ BT4
Remove under pressure	No
Trigger type	Bi-directional/Uni-directional
Adjustable length	20mm
Internal part material	316SS/DSS/INCONEL
Insert depth	21mm(Bi)/13mm(Uni)
Flange/Body material	PTFE coated A105N/304SS/316SS/DSS/INCONEL(As per MR)

Removable Pig Indicator, 2” Welded Base, NPT Connection

Name	Removable Pig Indicator
Connection	2” Welded Base, NPT Connection
Plug body length	200mm
Operating temperature	-20～120℃/Meet customer requirements
NACE MR 01- 75	Yes
Ingress protection	IP65/IP66
Explosion-proof class	ExdⅡ BT4
Remove under pressure	Yes
Trigger type	Bi-directional/Uni-directional
Adjustable length	20mm
Internal part material	316SS/DSS/INCONEL
Insert depth	21mm(Bi)/13mm(Uni)
Base/Body material	PTFE coated A105N/304SS/316SS/DSS/INCONEL(As per MR)

Pig Signaler- 2” Base Welded

The welded base pig indicator has a 2” base welded connection and is typically made from the same material as the pipe. This ensures a strong, cohesive weld that minimizes weak points, leading to a more secure and leak-proof operation. A welded base enhances the structural integrity of the indicator, allowing it to handle high pressures and aggressive substances in the pipeline. Its robust construction reduces maintenance needs and extends its service life, making it a cost-effective option for long-term pipeline monitoring.

Name	Pig Indicator
Connection	2” Welded Connection
Plug body length	200mm
Operating temperature	-20～120℃/Meet customer requirements
NACE MR 01- 75	Yes
Ingress protection	IP65/IP66
Explosion-proof class	ExdⅡ BT4
Remove under pressure	No
Trigger type	Bi-directional/Uni-directional
Adjustable length	0
Internal part material	316SS/DSS/INCONEL
Insert depth	21mm(Bi)/13mm(Uni)
Flange/Body material	PTFE coated A105N/304SS/316SS/DSS/INCONEL(As per MR)

Removable Pig Indicator On a Flange Valve

Name	Removable Pig Indicator On a Flange Valve
Connection	Flange Connection
Plug body length	200mm
Operating temperature	-20～120℃/Meet customer requirements
NACE MR 01-75	Yes
Ingress protection	IP65/IP66
Explosion-proof class	ExdⅡ BT4
Remove under pressure	Yes
Trigger type	Bi-directional/Uni-directional
Adjustable length	0
Internal part material	316SS/DSS/INCONEL
Insert depth	21mm(Bi)/13mm(Uni)
Flange/Body material	PTFE coated A105N/304SS/316SS/DSS/INCONEL(As per MR)

Removable Pig Indicator with a Ball Valve

Name	Removable Pig Indicator with a Ball Valve
Connection	Flange Connection
Plug body length	200mm
Operating temperature	-20～120℃/Meet customer requirements
NACE MR 01- 75	Yes
Ingress protection	IP65/IP66
Explosion-proof class	ExdⅡ BT4
Remove under pressure	Yes
Trigger type	Bi-directional/Uni-directional
Adjustable length	0
Internal part material	316SS/DSS/INCONEL
Insert depth	21mm(Bi)/13mm(Uni)
Flange/Body material	PTFE coated A105N/304SS/316SS/DSS/INCONEL(As per MR)

Removable Pig Indicator with a DBB Valve

The DBB valve ensures a fail-safe seal, allowing maintenance without stopping the flow. It isolates the indicator for safe, live-line interventions. The installation process is user-friendly, which shortens setup time. Its robust design promises longevity, even under high pressure. The indicator provides a clear visual signal when a pig passes. This design enhances safety and boosts operational efficiency. It also reduces downtime and cuts costs, optimizing pipeline management.

Name	Removable Pig Indicator with a DBB Valve
Connection	Flange Connection
Plug body length	200mm
Operating temperature	-20～120℃/Meet customer requirements
NACE MR 01- 75	Yes
Ingress protection	IP65/IP66
Explosion-proof class	ExdⅡ BT4
Remove under pressure	Yes
Trigger type	Bi-directional/Uni-directional
Adjustable length	0
Internal part material	316SS/DSS/INCONEL
Insert depth	21mm(Bi)/13mm(Uni)
Flange/Body material	PTFE coated A105N/304SS/316SS/DSS/INCONEL(As per MR)