No posts published in this language yet
Once posts are published, you’ll see them here.
top of page
.png){kind=small}
FAQ
VALVE GROUP
What Do DN and PN Mean, and How Do They Affect Valve Selection?
DN indicates the valve diameter, and PN indicates the pressure rating. For the correct selection, DN/PN should be evaluated together according to the line diameter and operating pressure. [Detailed content]
Should I Choose a Ball Valve or a Butterfly Valve?
Ball valves are preferred for on/off applications; butterfly valves are advantageous for large diameters and when rapid on/off is required. The choice is made according to the line diameter, pressure, and intended use. [Detailed content]
Which Connection Is Better: Flanged or Threaded?
Threaded connections are practical and economical for smaller diameters. Flanged connections are often preferred for higher pressure, larger diameters, or easier maintenance.
What Is the Difference Between PN16 and PN40?
The PN rating indicates a valve's nominal pressure class. Higher operating pressures require a higher PN rating; choosing the correct PN class is essential for safety and service life.
When Is a Globe Valve Required?
Globe valves are preferred in lines requiring flow rate adjustment/precise control (for control purposes). For simple on/off operation, a ball/butterfly valve is generally sufficient. [Detailed content]
What Is the Difference Between an On/Off Valve and a Control Valve?
An on/off valve fully opens or closes the flow. A control valve adjusts flow gradually to regulate flow rate or pressure.
What Does a Check Valve Do, and Where Is It Installed?
A check valve prevents reverse flow. It is used at pump outlets, in booster systems, and wherever backflow could cause problems.
What Does a Y-Strainer Do?
It traps sediment and particles to protect equipment such as valves, meters, and pumps. It is especially recommended upstream of control valves and sensitive equipment.
Choosing a Material: Brass, Cast Iron, or Stainless Steel?
Brass is common in water and heating systems. Cast iron or steel is often chosen for industrial lines requiring greater strength, while stainless steel is preferred where corrosion risk is high.
Vana montajında akış yönü önemli mi?
Bazı vana türlerinde (çekvalf, glob, filtre vb.) akış yönü kritik. Ürün üzerindeki ok işareti (flow direction) dikkate alınmalıdır.
What Pressure Can the Valve Withstand?
This depends on the product’s PN rating (for example, PN16 or PN40). Choose a suitable rating for the application’s operating pressure.
Which Valve Is Suitable for a Steam Line?
Choose a valve rated for the temperature and pressure of the steam line and suited to the application. We can recommend an option based on the line’s operating conditions.
Are valve products available from Astel Mekanik Tesisat in Nilüfer, Bursa?
Yes. Astel Mekanik Tesisat sells valve products and ships across Türkiye, including Bursa and Nilüfer. Contact us for product selection and stock availability.
vanagrubu-sss
bottom of page