Diverter valves - cast iron valves 

The offer includes rotary valves, i.e., valves used, among others, in forklifts and more. Three-way valves are used to switch the flow between two outlets. Valves can be closed or open in the central position. Valves used, among others, in forklifts - serve to switch the hydraulic system.  

What are hydraulic cast iron valves ?

Hydraulic cast iron valves are specialized elements of power hydraulic systems whose task is to control the flow of the working fluid – most often hydraulic oil. They are responsible for controlling the flow direction, regulating pressure, and protecting the installation against overload. In contrast to valves made of steel or brass, cast iron valves stand out for their exceptional mechanical resistance and high stability of operation in difficult industrial conditions. Thanks to this, they are used wherever the reliability and longevity of components matter. Hydraulic valves function as the „control center” in the system – they regulate the flow, direction, and operating parameters of the entire installation .

Construction and properties of cast iron valves

The body of cast iron valves is made of high-quality cast iron, often additionally protected by galvanization or protective painting. Such a solution significantly increases resistance to corrosion and mechanical damage. A typical cast iron valve consists of: a high-strength cast iron body, a control element (e.g., spool, poppet, distribution mechanism), seals ensuring system tightness, threaded connections (e.g. BSP). Cast iron valves are characterized by high wear resistance and the ability to work in demanding conditions, which translates into long life and stability of operation .

Operating principle of cast iron valves

The operating principle of hydraulic valves – including cast iron ones – consists in controlling the fluid flow by changing the position of the control element. Depending on the valve construction, it is possible to: open the flow, completely close the system, direct the fluid to a selected channel, regulate the flow rate. In practice, this means that the valve decides how the entire hydraulic system works – it affects the speed of the cylinders, the direction of movement, and the safety of the installation.

Types of cast iron valves available in the offer

In the cast iron valves category, various types of solutions are available, which can be adapted to a specific application: 3-way valves – allow for changing the flow direction, 6-way valves – used in more extensive systems, open center valves – ensure free flow in the neutral position, closed center valves – block the flow at rest, cast iron hydraulic manifolds – for controlling multiple sections of the system. Hydron's offer includes, among others, DF3, DF6, and IF4 valves, which allow for precise control of fluid flow in industrial installations .

Application of cast iron valves in power hydraulics

Cast iron valves find wide application in many industries: agricultural machinery (tractors, sprayers, combine harvesters), construction machinery (excavators, loaders), production industry and technological lines, hydraulic installations in heavy vehicles, hydraulic systems in workshops and service centers. Thanks to their durability, these valves are particularly recommended for working in conditions of high loads and intensive use.

Standards and quality of workmanship

Cast iron valves are manufactured in accordance with applicable industrial norms and standards, such as: PN-EN 1562 – regarding cast iron materials, PN-EN 75002 – standards for industrial fittings, power hydraulics standards (DIN, ISO). Products available at Hydron meet quality requirements and have appropriate certificates, which guarantees their safe use in hydraulic installations.

Most common mistakes when selecting cast iron valves

Incorrect valve selection can lead to serious problems in the hydraulic system. The most common mistakes are: selecting the wrong type of valve (e.g., open instead of closed), mismatching the connection diameter, not considering the working pressure, using a valve with too low material resistance, lack of analysis of the entire hydraulic system. In practice, this means a drop in efficiency, system overheating, or even installation failures.

Hydron technical advisory – support at every stage

Hydron is a company with many years of experience in power hydraulics, which supports customers not only in sales but also in selecting the right solutions. We provide: help in selecting valves for a specific application, technical support at the system design stage, advisory for the modernization of hydraulic installations, fast order fulfillment and high warehouse availability. Thanks to this, you can be sure that you are choosing solutions tailored to real working conditions.

Why is it worth choosing cast iron valves?

Cast iron valves are a proven solution for demanding users. Their greatest advantages are: high mechanical resistance, durability and long life, stable operation in difficult conditions, corrosion resistance, ability to work in industrial and mobile installations. This is why they are commonly used in professional power hydraulic systems.