Product group

ATEX certified electric actuator, for operation in explosion proof and hazardous environment.
The actuator is remotely controlled and are suitable for controlling choke, pump and chemical injection systems.

Key features:

Input voltage                                        24 VDC

Max power consumption                   < 36W

Run speed                                            0 - 100- RPM

Max torque                                           1,8 Nm

Max radial load                                   200 N

Max axial load                                     15 N

Cable gland entries                             3xM20x1,5

Position resolution                              < 1,8°

Physical interface                               RS-485, 4-20mA (Analog position control), 5VDC GPIO

Communication protocols                 Modbus RTU, HART 7 (Monitoring only)

Ex Classification                                 II 2 G EX db eb IIA T4 Gb

Ex Classification                                 II 2 G c T4

Material                                                AISI 316

Weight                                                  APPR. 7,4 KG

Project Name

Rotac MKII

Client

Description

An extremely compact, rotational actuator with multi-turn possibilities. The actuator is powered by 24VDC and communicates with the control system via RS-485 Modbus. A number of actuators can be installed in a daisy chain enabling a simple hookup of multiple units. The actuator was certified for use in ATEX category 3 / Ex zone 2.

Techni Contribution

Concept development

Technical Challenge

Project Name
Subsea Rotating Override Gear

Client
Statoil and Aker Solutions

Description
Actuator for closing of valves via ROV. The gir converts low torque rotary movement to linear actuation. Over 90 gears delivered and in operation in the Statoil Visund Field

Techni Contribution
Design, prototyping and manufacturing and delivery of gears

Project Name
Heavelock

Client
Statoil

Description
Heavelock is an autonomous sub for use where pressure windows are tight. This is typically while drilling through the reservoir section.

Techni Contribution
Design, prototyping.

Technical Challenge
Experiencing even small fluctuations in pressure, around 2-3 bars, can lead to both dangerous and costly consequences such as kicks and formation damage.

Product
Universal Control Board with Motor Controller

Client
FMC, Various

Description
High performance control board with OPC UA server and universal motor controller.
The OPC UA controller is designed for subsea oil and gas applications, but can be used topside and other applications.

Features
Stand alone OPC-UA server with Ethernet interface relevant to MCS-DCS and SIIS Level 3 / API17F, for direct sensor connection to lower level sensor units and control system.

Integrated power supply for external sensors and control system

- 11 Analog inputs, 4 x 4-20mA inputs

- 16+6 x Digital I/O lines

- 2 x Canbus networks in high speed or fault tolerant configuration

- 1 x Ethernet connection

- Qualified according to ISO13628-6, Q1 and Q2

Project Name
BAMSE: B-Annulus Monitoring System

Client
Statoil

Description
Continuous pressure and temperature monitoring system for B-annulus for subsea wells. Currently in review for Statoil TRL4 qualification

Techni Contribution
Concept sensor design, system design, prototyping, extensive testing

Technical Challenge
The B-annulus is inaccessible for subsea wells, hence there is a desire to not have any fragile electronic components in this space. It is also not desirable to have any penetrations of the casing. Challenge is to measure and communicate the pressure in B-annulus. BAMSE system utilizes a novelultrasonics based system to measure through the casing wall

Other
Monitoring of B-annulus is required by the Norwegian Petroleum Safety Authority: “Annulus should have pressure monitoring”

Project Name
Subsea MAPS pump

Clients
Statoil and PG Pumps

Description
Design and prototype construction of high performance multipurpose pump  

Techni Contribution
Concept development, design and prototype build of MAPS pump

Technical Challenge
Full development of a permanent magnet motor (PMM) with linear actuation to drive four pumps. Smart energy conservation system and low pump ripple

Other
The MAPS pump system won the 2011 Spotlight on New Technology Award at the Offshore Technology Conference in Houston, Texas