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Service & Repair

Control Valve Repair

Dyna-Flo Houston area Service Center
is located at:

2007A Preston Avenue
Pasadena, TX 77503

Dyna-Flo Repair and Maintenance

Dyna-Flo started as a repair service company back in 1993. At that time we were two people strong with combined 20 years with Fisher® Service Co. "We haven't forgotten our roots”, Dyna-Flo today is over 70 people strong with a strong focus on customer service. We continue to provide a top quality control valve service, with customer satisfaction our primary focus. Our capabilities range from the smallest regulators to the largest control valves and all the support expertise that is required to assure that the critical specifications are met and customer requirements are fulfilled.

To complement our service department, our engineering department can provide expert applications services to help solve process issues related to control. Whether you have valve that doesn't work, or you need one that does, we can help provide you with a solution.

All valves repaired by Dyna-Flo are put through a systematic procedure to ensure total quality control and customer satisfaction.

When Received:

All information is entered on computer for an Initial Scope Report.

Repair instructions for valve are obtained from the customer and entered onto the computer before the valve is disassembled, pre-disassembly diagnostics are available upon request.

Valve is disassembled and cleaned to customer's repair requirements.

Valve Disassembly Inspection Report is completed and estimate prepared.

Valve condition and repair costs are communicated to customer.

On Approval:

Parts are either ordered from Dyna-Flo or Fisher® (customer preference).

Repairable metal parts are reconditioned.

All parts are inspected by our Quality Control Department before any installation begins.

Valve is then reassembled and oriented as received.

On Completion:

Valves are tested to O.E.M. specifications (i.e.. seat leakage, operational test and hydro test).

Tests are witnessed by a Quality Control Inspector.

Assembly Report completed on computer.

Valve is packaged for shipping with all reports including: Initial Scope, Disassembly, Reassembly, Parts Used, and Valve Testing.


We have the ability to do large scale in-house plant maintenance - shut downs with each and every valve going through the Dyna-Flo repair procedure and meet customer requirements.

On-Site/In House

If the valves cannot come to us, then we can go to the valves and repair them right in line. Dyna-Flo has many years of experience repairing various types of control valves, actuators, and instruments.

Trim Repair

Send us your used trim, and we can repair it to 'like new' conditions. This includes machining, welding, and applying special coatings. If the trim cannot be repaired it can be replaced with a new manufactured Dyna-Flo product.