Logo with bold red letters JVS in the center. Surrounding text in a black circle reads JS Machine & Valve, Nowata, OK 918-273-1582 with a small red dot separating sections.
Customer Portal

Our History

We are one of America’s leaders in providing quick shop and field service repair for gate, globe, check, lubricated and non-lubricated plug valves, ball, butterfly, Pipeline Gates, Twin Seal, Fisher, Durco, Tufline, and Wedgeplugs – all in accordance with ANSI, API specifications. JS Machine & Valve, Inc. specializes in exotic material valves including Monel, C5, C12, Hasteloys, SS, as well as other exotic materials.

52

Years in Business

50+

Full Time Employees

130k

Sq Ft of Production Space

15

Acre Yard for Stock & Inventory

The Early Days

Founded in 1974 by Jack D. Smith in Nowata, Oklahoma, JS Machine & Valve began as a valve repair operation after acquiring Empire Valve & Equipment, incorporated in 1978, and expanded into inventory sales. Through the 1980s and 1990s, the company grew its customer base and capabilities, launching a Field Service division in 1994 to provide on-site repair, machining, and technical support. Continued growth—including acquisitions and a 2006 merger that doubled capacity—established JS as a nationwide provider with both shop and mobile field service capabilities. Today, JS delivers full-service valve repair and remanufacturing, combining in-shop and field services such as machining, welding, testing, and reverse engineering to support everything from routine maintenance to complex turnaround and emergency work.

JS Machine & Valve

Over the Years

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1974

Founded

JS Machine & Valve is founded in Nowata, Oklahoma by Jack D. Smith after acquiring Empire Valve & Equipment, focusing on industrial valve repair.

Headshot of Jack Smith
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1978

Company Incorporated

The company is officially incorporated and begins expanding beyond repair work into valve inventory sales to support customer demand.

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1980's

Business Growth

Customer base grows significantly, with increased work supporting refineries and industrial facilities across the region.

Archival photo of JS Valve facility
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1994

Field Service Launch

A dedicated Field Service division is launched, enabling on-site valve repair, machining, and technical support alongside in-shop services.

Archival photo of two technicians working on valve
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Late 1990's–Early 2000's

Capability Expansion

Capabilities expand to include advanced machining, welding, reconditioning, and OEM-certified repair programs, including factory-authorized services.

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2006

Merger

A merger and facility expansion doubles production capacity, strengthening both shop operations and field service capabilities.

Exterior photo of JS Valve facility
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2000's–2024

National Expansion

JS continues national expansion, deploying mobile machine shops and field service teams capable of servicing customers across the United States, including remote locations.

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2025

Ovation Holdings

JS Valve partners with Ovation Holdings Inc., expanding their national reach and service offerings.

Map of the United States with icons marking business locations. Text highlights “33+ locations,” “1050+ employees,” “450+ field technicians,” and “99+ brands.” Most locations are in the eastern and southern states.
Metallic block letters mounted on a gray wall spell out JS VALVE, with JS in large letters above VALVE in smaller size. The letters have a textured, galvanized appearance with a rustic finish.

Gallery

Become Part of Our Legacy

Aerial view of a large industrial warehouse with the sign S&S Machine & Valve on the front. Several cars and trucks are parked outside, surrounded by greenery and a partly cloudy sky.

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