Diffley-Wright Corporation
1891 Porter Lake Drive Suite 106
Sarasota, Florida 34240
(800) 282-4886 FREE
Humphrey Products Corporation; Maker of Humphrey Valves
It was 113 years ago when the Humphrey Products Corporation began solving commercial valve problems for American industries. Now, Humphrey is considered a world leader in producing pneumatic products. Using proven technologies to manufacture a wide variety of pneumatic valves and products, Humphrey solves problems for many unique applications. Serving the commercial and industrial markets, Read the full article…
Tips About Proportional Humphrey Valves
What are Proportional Valves? Essentially proportional valves are electronic flow controllers. Users can vary the input current to the solenoid, and the output flow of the valve will vary accordingly. The greater the input current, the greater the flow through the valve. Typical applications for proportional Humphrey valves are: dynamically dispensing controlled amounts of air Read the full article…
Humphrey Valves: Pilot, Proportional, and Latching Types
What are Pilot Valves? Pilot valves are small, 3-way, subbase mount, direct-acting solenoid valves. They use low power and can thus be operated by smaller power supplies, controllers, or even batteries. They have a pressure rating and flow capacity sufficient to shift, or “pilot” larger process or work valves, such as those controlling large bore Read the full article…
How Do Proximity Switches Work?
Proximity switches open or close an electrical circuit when they make contact with or come within a certain distance of an object. Proximity switches are most commonly used in manufacturing equipment, robotics, and security systems. There are 4 basic types of proximity switches: infrared, acoustic, capacitive, and inductive. Infrared Switches These work by sending out Read the full article…
Control System Security
Control system security is the prevention of intentional or unintentional interference with the proper operation of industrial automation and control systems. These control systems manage essential services including electricity, petroleum production, water, transportation, manufacturing, and communications. They rely on computers, networks, operating systems, applications, and programmable controllers, each of which could contain security vulnerabilities. The Read the full article…
New Humphrey Valve Saves Energy
Last February, Humphrey announced its new L310 Latching Valve. The L310 is based upon proven Humphrey technology of the balanced-poppet, direct-acting 310 solenoid valve design. The L310 Latching Valve saves energy, compared with traditional solenoid valves, with its low power consumption. It also offers the benefit of low heat generation, which can be important in Read the full article…
Major Trends in Pressure Transmitter Technology
The pressure transmitter market has grown substantially in recent years, according to a study done by Flow Research. In an article due to be publish in the Flow Control Magazine this August, several important new trends are revealed. Energy Market Growth: Increased investments in the energy markets are driving pressure transmitter growth. More measurement points Read the full article…
Air Piloted Valves for Dummies
When you hear ‘Air Piloted Valves,’ the first thing that should come to mind is one simple word: control. Essentially, the force output of an air pilot valve is significantly more impactful and more powerful than that produced in electrical solenoids or actuators. That makes the Air Pilot the perfect choice for remote and miniature Read the full article…
All about Gate Valves
Gate Valves – put succinctly – are on/off devices that are used to control the flow of gasses, liquids and steam. They’re not exactly a break-though technology (in fact, they’ve been around for 100+ years), but they are one of the most reliable, dependable valves you can invest in. They come in a variety of Read the full article…
Understanding Water Check Valves
Whenever you’re dealing with chemical or petrochemical materials, you can bet that those valves are made of steel. That steel comes in a variety of stripes – including carbon steel, stainless steel and the like. Due to their ability to resist heat and corrosion, they have become a popular product over the years. Conversely, one Read the full article…
