Pragmaticus offers a wide range of valves for industrial applications. The valves are easy and economical way to control and check the flows. No doubt, a valve is more than just an industrial device for turning on and shutting off the flows of fluids and gases.
There are two general groups: stop and check valves (so-called basic valves’ types). Besides, more complicated industrial valves for special, sometimes unique application are also made. All existing valves can’t be classified as easy as “stop” and “check” types as well as all industrial requirements can’t be divided into two groups only. Read the rest of this entry »
How to choose valve according to industrial requirements
December 14th, 2009Trouble shooting guide for business of any size
December 14th, 2009Everyday company’s management faces up with different problems, from PC’s malfunctions to serious failures. What can you do when your business runs into problems? What does your troubleshooting policy consist of? It is necessary to develop and maintain complex business systems where the problems may have a set of different causes. It’s not a secret, internal resources are not a panacea from all the problems you have. In difficult business situations hiring interim personnel become a way out of problems. Interim management for industry means cost-effective problem solving.
Why internal management isn’t enough? Business troubleshooting requires professional skills, developed not one or two years, and experience with proven results. Read the rest of this entry »
Swing check valves
November 23rd, 2009Swing type is the one of the check valves (name also clack valve, non-return valve or one-way valve). Check valves’ main function is to allow fluid (liquid or gas) to flow through it in only one direction. Therefore, there are some technology features of each type.
A swing check valve has a butterfly shape, where the disc, the movable part used to block the flow, that is why it swings on a hinge or trunnion, either onto the seat to block reverse flow or off the seat to allow forward flow. The seat opening cross-section may be perpendicular to the centerline between the two ports or at an angle.
Turbulence and pressure drop within the valve are very low what makes them more demanded. The next reason why this type of valves is widespread in industrial application is that swing check valves allows full, unobstructed flow and automatically closes as pressure decreases. These valves are fully closed when the flow reaches zero and prevent back flow. Read the rest of this entry »
All about tilting disc check valve: description, main function, leading manufacturer.
November 23rd, 2009Let’s start from check valves description. This type of industrial valves is classified as one-way directional valves. Why so? Check valves permit gases and liquids to flow in only one direction. This permission prevents process flow from reversing. Tilting disk valves’ type keeps fluid resistance and turbulence low because of its straight-through structure.
Tilting disc check valve has the same working process, it is opened when flow goes through one direction and closes at backflow. Their fast closure system ensures good pump protection and it can be considered as the main application of tilting disc check valves. It is widely used in different industries (agricultural, water system, for aggressive liquid conveyance applications and many others) for gases and liquids and is not recommended when a flow has solids in suspension. Read the rest of this entry »
Ball valves
November 2nd, 2009Maybe the most popular natural shape is a ball. Ball valves opens by turning a handle attached to the inside. There is a hole, called “port”, through the middle so that when the port is in line with both ends of the valve, flow will occur. And on the contrary, when a ball valve is closed a flow is blocked. Therefore ball valves are a “right” choice for shut-off applications. But, in any case, ball valve can’t be considered as control valve.
“Alive” diaphragm valves
November 2nd, 2009A human body is the most perfect mechanism in the world. Why not to take it as a basis? This type of industrial valves named “diaphragm” or “membrane” because of shape, reminding human diaphragm – the main muscle which is responsible for breath. The thin diaphragm has dome-shaped structure and when the diaphragm muscle is reduced, it falls to more flat condition. It attracts vacuum formation in a tracheal cavity and availability of pressure in a belly cavity. The vacuum is filled in at expansion of lungs and accordingly a breath. When the diaphragm relaxes and accepts a dome-shaped condition, air lungs exhaust and reduced. During a dream breath is ensured mainly at the expense of a diaphragm. In industrial applications diaphragm valves have similar functioning. Simply, diaphragm valves are used as shut-off equipment in process systems and consist of a “body” with two, three or even more ports, a diaphragm and seat upon which the diaphragm closes the valve.
Natural shapes as a source of industrial inspiration “Butterfly” shape with high performance
November 2nd, 2009Natural shapes are widely used in industries: Planes reminding birds flight, streamline of the ships, butterfly and diaphragm valves and many others.
Take a look at butterfly valves structure. In simple terms, “butterfly” shape consists of body, stem, actuator, seat and a circular disc with its pivot axis at right angles to the direction material is flowing. The main idea of butterfly valves is simple: each component part is available in a variety of materials and completes set in order to conform the requirements of each concrete branch. Natural wisdom is embodied in this valve. Simple structure has wide application in completely different industries, from A for mining applications to Z in pharmaceutical. Look at vital sector, such as drinking water, international eco questions such as waste water and sea water treatment, desalination plants applications. In each of them butterfly valves are used successfully. It is impossible to imagine nowadays chemical industry without sterile and high quality industrial valves application. The same is about pharmacy, food and beverage manufacturing. Mining industry requires completely different metals and technical characteristics. But even in this case “butterfly” structure can be used with high performance.
