Throttle valves come in piston and needle-valve structures, but we also know them as turn plugs with axial or radial grooves. The smothering of grooves is more accurate but provides more variability than those with piston structures. The needle throttle has one disadvantage: a great deal of power is required to move the needle only a slight amount.
The pressure difference (Δp) determines the amount of flow that passes the throttle. In systems with varying loads (and therefore varying pressures), the flow passing the throttle will always be different.
You can find non-adjustable (fixed) smothering in situations where it is needed to gauge against excessive pressure surges. Also, one can find non-adjustable throttles in control systems.
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 has extensive expertise with hydraulic valves and carries a substantial inventory of hydraulic valves in different sizes, valve spool configurations and solenoid voltages. We only supply high-quality hydraulic valves, taking into account a wide variety of functional and hydraulic system requirements.
Hydraulic valves are available from several major vendors; our preferred hydraulic valve suppliers are Parker Hannifin and Denison Hydraulics. Additionally, we supply hydraulic valve parts and accessories such as sub plates, seal kits, O-rings, solenoids and hydraulic valve control electronics.
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).