Masoneilan 174 Series Pressure Regulator

Masoneilan 174 Series Self-Contained Pressure Reducing Regulator

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Masoneilan 174 Series Self-Contained Pressure Reducing Regulator

The Masoneilan 174 Series is a threaded or flanged connections carbon steel, stainless steel & alloy constructions.

174 Series Key Features and Benefits

The Masoneilan 174 Series regulators are a spring loaded, direct operated regulator for pressure reducing or relief applications in a variety of industrial applications. The large diaphragm area provides more accurate control at low pressure settings and the lever design provides excellent shut-oﬀ tightness. These regulators are available in ½” up to 1½” (DN15 through DN40) body sizes with a maximum inlet pressure of 145 psig (10 barg). The simple construction makes it very ﬂexible, easy to install and to maintain.

General features:

Flow to open or close design (depending on function)
Internal pressure sensing
Resilient single seat
Elastomeric Diaphragm
Flexible body orientation to simplify installation
Spring Loaded, Direct-Operated Regulator for Pressure Reducing or Relief Applications

174 Series Specifications

Function:

174-1 Pressure reducing

174-7 Back-Pressure / Pressure Relief

Service:

Gas, Air

Sizes:

½” through 1-1/2” (DN15 through DN40

Body:

Connections: Screwed (NPT)

Ratings:

Maximum Inlet Pressure

174-1 Reducing: 145 psig (10 barg)

174-7 Relief: 4.4 psig (0.3 barg)

Maximum Outlet Pressure

174-1 Reducing: 8.8 psig (0.61 barg)

Set Pressure Range:

174-1 Reducing: 1.4 inches w.c. to 8.8 psig

174-7 Relief: 1.4 inches w.c. to 4.4 psig

Temperature Range:

-0.4° to 194°F (-18° to 90°C)

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Masoneilan 174 Series Tech Spec

Masoneilan 174 Series Tech Spec

View Tech Spec

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We appreciate the wonderful equipment and support you have given us over the years. The communication and professionalism is first class. Looking forward to that continued excellence in the future.

- Derek L, Upstream Oil & Gas Industry

Thank you and your team for the quick response time and for being so proactive with helping me get my customer back up and running so quickly. I really appreciate the Knowledge and support the VSI Team gives me which ensures that we have returning customers. Again, Thank you on a job well done.

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The entire team at VSI has always been able to meet my needs and always exceeds my expectations. I have a great relationship with both the sales and service teams they are always ready to answer technical questions and provide excellent advice on ways to solve problems in the field and are always ready with solutions no matter how obscure or unusual the problem. VSI is more than ready and able to meet all my valve needs at any given moment.

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Your quality service and parts help make my job a lot easier. Thank you and keep up the good work!

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VSI, sales personnel, and the service staff have always managed to step up to the plate, accept the challenges presented, and continually offer great technical support, exceeding customer relations and reliability that I’ve come to trust throughout years of valued service.

- Dereque J., Downstream Oil & Gas Industry

VSI has been helpful in many ways, from greasing valves, valve repair, valve replacement, and training our guys as well. We can’t say enough about quotes, labor support, material delivery time, and billing. Aaron has helped us out of several jams over the years and we appreciate it.

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Just wanted to thank you for your dedication to [us] on getting parts and material. I can always rely on VSI.

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VSI has rebuilt our pressure relief valves here at [our processing plant] for several years now and I have always been very pleased with their service and quality of work. The work is always completed on time and we have had no reliability issues with the valves they’ve worked on. It’s always a pleasure working with VSI and I look forward to continuing the relationship.

- Ross A., Pulp & Paper Industry

Thank you for your genuine effort on all the work you have done for [us]. As always, thank you for the quick quotes and parts.

- Randy W., Midstream Oil & Gas Industry

Masoneilan 174 Series Self-Contained Pressure Reducing Regulator