Applied Industrial Technologies offers an array of hydraulic valves and related accessories, including cartridge valves, directional control valves, flow/motion control valves, hydraulic ball valves, pressure control valves, proportional directional valves, and SystemStak valves. Some of the in-line/body ported directional control options are buildable sectional valves, log splitter valves, and Monoblock valves. Hydraulic ball valves are available in a variety of configurations, with connections types such as BSPP and Code-614 bolt flange, materials such as brass, steel, and stainless steel, and several installed options like one-way or two-way, with or without lock, or flat, non-offset handle. Meanwhile, the SystemStak valves are available for pressure control, flow control, and checks. In total, the company offers some 18,000 hydraulic valves and accessories.

Grainger distributes a variety of hydraulic valves, such as relief, pressure contro and split flow valves. Hydraulic valve models include the Prince RD1850H, with a max flow 16 GPM and pressure range of 1,000 to 2,500 psi, and the Vickers CS-03-B50, with a max flow of 45 GPM and pressure range of 125 to 1,000.

HydraForce offers hydraulic cartridge valves and electro-hydraulic control systems. Solenoid on/off valves come in a variety of configurations (from 2-way up to 6-way, poppet-type or spool-type, etc.), as do the directional valves, which include guided check valves, load shuttle valves, and piloted 2-, 3-, and 4-way spool valves.

Motion Industries supplies a variety of hydraulic valves, including cartridge valves, check valves, directional control valves, flow control valves, needle valves, pressure control valves, and proportional valves. The company sells 319 unique check valves, either line mounted or manifold mounted, and manufactured by Hydac, Vickers, and others. The selection is even greater for directional control valves, which are either manual or Solenoid operated, as well as for the flow control valves, most of which are line mounted. In addition, needle valves by Hydac and manually-adjustable pressure control valves by Vickers are available, either manifold mounted or line mounted.

Eaton Hydraulics provides a range of hydraulic valves, including direct operated Vickers inline, right angle, and manifold mounted check valves for one-way flow in hydraulic circuits, and flow control valves that cause variable pressure drops in fluid passages in order to reduce flow. They also have recently added Vickers KB Proportional Directional Valves, which are IP65 and 67 rated, and tolerate pressures up to 5,000 psi and flows up to 185 US GPM. Other valve choices include directional, flange, pressure control, proportional flow, and proportional pressure valves.

Westfield Hydraulics develops, engineers, and produces many electro-mechanical devices and fluid power assemblies. Among their offerings are thrust reverser valves, steering valves, hydraulic Solenoid valves, multi-position hydraulic Solenoid valves, and check valves. The company can also manufacture customer-designed valves and related products.

Atos Electrohydraulics offers both proportional valves and cartridge valves. The proportional pressure valves are suited to support max flows as low as 4 L/min, and as high as 600. The proportional directional valves come standard direct operated, but also can include one or two position transducers. The proportional cartridges, meanwhile, are designed for compensation, relief, or reducing. Finally, there are six cartridge valve options that can provide pressure, flow, or directional control, or on-off active safety functionality.

HYDAC's lineup of hydraulic valves begins with its high pressure ball valve rated up to 5,800 psi, which comes either standard or split flange direct mount; a low pressure stainless steel ball valve is also available for pressures up to 2,000 psi. In addition, the company manufactures eight models of flow control valves, which each have a phosphate coated steel valve body, an FPM seal, and a slotted control spindle design, on top of individual features such as pressure compensation. Other valves available are hose break valves, shuttle valves, and cartridge valves.

Northman Fluid Power offers three main types of hydraulic valves. Its hydraulic Solenoid valves are available in sizes D03, D05, D07, D08, and D10; molded plug-in coil and housing, indicator lights, mounting bolts, and AC or DC coils come standard. The modular hydraulic control valves, for mounting between directional valves and subplates or manifols, offer presure and flow control. Lastly, the hydraulic pressure and flow control valves provide relief, sequence, counterbalance, and pressure reduction, and are either threaded or subplate mounted.

Oilgear offers a full range of standard and special function valves, as well as custom-design flexibility. Sizes range from 0.25" to 38", while maximum pressure is 60,000 psi and flow, 26,420 GPM. A number of mounting options are available, as well: manifold, sub-plate, flange, and pipe.

FORCE America sells five valve models. The Add-A-Fold 2010, Add-A-Stack 4020, and Add-A-Stack 2512 valves are all integrated mult-function valves designed to electronically control both cylinders and motors, while the Add-a-Fold 4520 valve is meant to protect against corrosion. Finally, the SCE Spin-A-Veyer valve is a compact electro-proportional control valve designed for spreader applications.

Advanced Hydraulics distributes several major brands of hydraulic valves. Their inventory includes directional control, relief, unloading, check, and circuit saver valves which can be Solenoid operated, manually operated, or air actuated.