Directional control valves can control the start, stop and change in direction of flow of a pressure medium (i.e. hydraulic oil). For this reason, they are also referred to as switching valves. Directional control valves are available as spool valves, poppet valves or rotary slide valves. Rotary slide valves, however, are no longer commonly used due to low operating pressure (up to 70 bar). Directional control valves without proportional control are referred to as switching valves.
The function of a directional control valve is determined by the number of working ports (excluding control ports) and the number of spool positions. A directional control valve comprises at least two spool (switching) positions and two working ports. The most common directional control valve is a 4/3-way valve, which means the valve has four working ports and three spool positions, in accordance with DIN ISO 1219.
A hydraulic system can only function - as per requirements - by using valves. Thus, you should always look for the correct type of hydraulic valve to serve your intended purpose. Get advice and suggestions from DTA in order to select the appropriate hydraulic valve, in terms of size and function, that suits your application and your budget.
DTA is serving your industry with the supply of hydraulic parts and hydraulic components for more than 25 years. Since 2010 we have been fully qualified and certified as distributor hydraulics by Parker Hannifin. Together we developed a rapid delivery program for the genuine Denison Hydraulics single and multiple vane pumps. We support industrial and mobile applications and hold a considerable inventory of genuine parts, components and sub-assemblies.
Vane pumps and genuine spare parts in stock; over 25,000 configurations listed in our online pump catalogue!
Currently we can supply over 20,000 pump configurations from stock. All the hydraulic parts and components that we supply are new and genuinely manufactured by the high quality hydraulic manufacturer of your choosing. DTA can be your one-stop-shop and supplies high-quality brands only such as Parker Hannifin (Denison Hydraulics, Olaer, Calzoni, VOAC, Sterling Hydraulics), Bosch Rexroth (Brüninghaus, Eppensteiner, Hägglunds, Hydromatik, Oil-Control), Bucher Hydraulics, Moog, STAR Hydraulics, Hydac and Eaton (Char-Lynn, Eaton Hydraulics, Integrated Hydraulics, Vickers).