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Valve Automation, Sizing, Selection, Repair, Modification & Testing

Contact us for your valve or valve related accessory equipment or service requirements, these include:

Valve Automation

All three locations are equipped to install actuators on valves, however, our Montreal and Toronto area facilities are equipped with additional test equipment and as such are capable of automating large bore valves. We can install our actuator on your valve, your actuator on our valve, or supply the entire assembly. We offer additional seat leakage testing in house to ensure your automated valve is set up correctly.

Our experienced staff will supply and install according to client specification:

  • Electric, including 480V and 600V 3ph power for quarter turn or multi turn valves
  • Pneumatic double acting and spring return
  • Hydraulic 
  • Positioners
  • Feedback Switches
  • Fail in Place devices
  • Flow and Volume Boosters
  • Pilot Solenoid Valves
  • Declutchable Manual Gear Overrides
  • Chainwheel Operators


Matheson Valves can customize assemblies per client’s requirements. Some examples are as follows: 

  • Proximity switches on rising stem gate valves
  • Extremely fast closing and/or opening on/off valves
  • Customer specific wiring of limit switches
  • Fire blankets to protect actuators for emergency shut down valves


  • We can repair or refurbish valves and actuators
  • Warranty repairs 
  • Non-warranty after sales services and repairs


  •  Seat leakage testing
  •   Hydro testing
  •  Calibration
  •  Stroke testing
  • Cycle testing 
  • Third party testing 
  • Testing documentation/certificates  

Sizing & Selection

  • Sizing and selection using manufacturer supplied software and charts to ensure proper actuator, valve size and trim selection.
  • Knowledgeable staff that will aid you in proper valve selection from cryogenic to 1000deg F +.

On-Site Service

  • Commissioning and startup 
  • Warranty and non-warranty repairs
  • Troubleshooting

After Sales Service

  • Spare parts 
  • Product identification
  • Maintenance
  • Documentation and record book archiving


We offer a number of brands from manufacturers you can trust.


4060 Poirier Ville St-Laurent QC H4R 2A5

Call Now: 514-337-1106
Fax: 514-745-1542

Saguenay Region

130 Lac Sébastien, emb3

Falardeau, QC G0V 1C0

Call Now: 581-490-1574


Fax: 418-683-6969


3400 Landmark Road, Burlington, ON

L7M 1S8
Call Now: 905-331-0386

Fax: 905-331-6310


Quebec City

750 Boul. Pierre Bertrand, Local 190, Quebec City, QC, G1M 3L2

Call Now: 418-683-0444
Fax: 418-683-6969

Eastern Ontario

1568 Tryon road,  Sharbot Lake, Ontario, K0H 2P0

Call Now: 613-540-2327


Fax: 905-331-6310


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