Call directly +31 (0)172 471339

VPI position indicator

Real-time position feedback of your manual valves. Get up-to-date valve status information, improve process performance and increase right first time procedures.

Send real-time valve position information to your DCS

VPI is a high-performance switch box for manual multiturn valves. It detects when valves have reached their open or closed position and sends a signal to your DCS. This valuable information about manual assets enriches your control system’s capabilities. It helps to further optimize your process performance, and prevents safety issues or product contamination caused by incorrect valve line-ups.

Dowload brochure
Valve limit switch for linear valves

Improve your process performance with real-time valve status information

Accurate position information of your manual valves helps you to further optimize your processes. With position indicators on your manual valves you have up-to-date valve status information in your control room, you ensure that many procedures go right first-time and you improve your process performance.


The VPI can be applied in any plant. You can connect it to your control system in a number of ways, depending on your communication infrastructure.

Valve position indicator wired configuration


Use your existing cable infrastructure.

Valve position indicator industrial wireless configuration

Industrial wireless

Connect the VPI to a wireless transmitter, irrespective of which protocol you use.

Valve position indicator mobile internet configuration

Mobile internet

In remote locations, communicate online via a GPRS transmitter.

VPI A-series

Valve position indicator S-Series

VPI S-series


The VPI is available in coated aluminium and in high performance AISI 316. Both models are universally applicable and extremely durable. The VPI can be installed in highly explosive atmospheres and is certified for use in zone 1 classified areas.

Get your VPI offer
In field notification of manual valve positions

Intrinsically safe or flame proof

VPI A/S-series are Atex and IECEx certified as intrinsically safe (Ex i). It is also available in a flame proof version. This version is equipped with an external, Ex d junction box. The Ex d version can be equiped with a range of sensors and switches.

Easy mounting and setting

VPI position indicator is specifically designed to fit any type of gate, globe or rising stem valve. It is equipped with a universal mounting bracket, integrated terminal blocks and easily-accessible setting inlets.

Valve position indicator universal mounting device

Universal mounting…

Valve position indicator quick connection of terminal blocks

…quick connecting…

The valve position indicator can easily be set

…and easy setting.

Reference companies

The Netherlocks VPI is based on extensive experience. Using proven technology, thousands of our position indicators are already successfully deployed in the field.

Shell logo small
BP logo small
Repsol logo small
Total logo small
Dow logo small
Smith Flow Control and Netherlocks Safety Systems have merged. We are now Sofis.


Sofis offers you support through local service centers and a network of certified local service partners. This enables efficient execution of installation and maintenance of your Sofis products. We strive to create partnerships with our clients, providing a turnkey approach to service. This will result in a reduction of your total cost of ownership.

Go to support