Tretter Manufacturing Company designs and fabricates custom valves, piping assemblies, and pressure vessels for various chemical processes. They offer a full line of sampling valves, drain valves, diverter and mixing valves, and line blinds, and provide repair services for piston or disk style valves.
ISO 9001
Fetterolf CorporationFetterolf Corporation designs and manufactures industrial valves for severe process industries. Its products include bottom outlet, diverter, line-blinding, sampling, spray rinse, automatic recirculation, Y-globe, in-tank shut-off, and desuperheater valves, with customized designs for chemical, petrochemical, oil, gas, refining, polymer, mining, offshore, and tank-storage applications.SKIPPACK, PA
Valves OnlyWith more than two decades in the trade, Valves Only designs and manufactures industrial valves for demanding oil and gas, power, chemical, water and marine applications. Its production is handled in-house from CAE-driven design through machining, assembly and testing, with more than 2,000 valve variants supplied to customers in over 50 countries. The company operates under ISO 9001:2015 processes and reports 100% testing and full material traceability on every order.MANHATTAN, NY
Tru-Tech ValveTru-Tech Valve, formed in 2008 after its management team acquired TruTech Industries, designs and manufactures diaphragm valves and actuators for containing abrasive slurries and corrosive fluids. From its New Castle, Pennsylvania operation, the company supports standard and custom valve construction, with local machining and coating capabilities and thousands of diaphragms in stock. Its valves are installed worldwide across demanding industrial, municipal and process applications.NEW CASTLE, PA
Curtiss-Wright Valves DivisionCurtiss-Wright Valves Division supplies Dyna-Flo control valve systems, actuators and instrumentation; Farris pressure relief and directional control valves; and EST Group heat-exchanger repair, isolation, testing and replacement products. Its stated markets include oil and gas, refining and petrochemical, power generation, chemical, mining, pulp and paper, food and beverage, shipbuilding, modular plant construction and general industry.336413ASTON, PA