Solenoid Valve 25 mm Flange NC Brass FKM 0.2-10bar/3-145psi 230VAC Anti-Waterhammer 5282 355271

This is a Burkert indirect operating 2/2 way solenoid valve with 25 mm flange and a 230 V AC coil. The valve has a brass housing with FKM sealing and an orifice size of 25 mm. The circuit function of the solenoid valve is normally closed, which means the valve opens when voltage is applied. However, the function can easily be changed between NC and NO by rotating the pilot valve on the top side by 180 degrees. Suitable for a pressure of 0.2 - 10 bar (3 - 145 psi) and a maximum temperature of 90 °C (194 °F). The valve has a Kv-value of 10 m3/h, this translates to a flow rate of 167 l/min at a differential pressure of 1 bar (for water). In imperial units: Cv = 12, which means 12 GPM @ 1 psi pressure drop. For many applications it is enough to select a valve based on the thread size and orifice diameter. For more accurate sizing, use the Kv-value with our easy to use valve sizing calculator. This model is media separated. This means that the working parts such as the spring are separated from the media by a flexible membrane, which makes it possible to use of slightly contaminated and aggressive media. The brass housing is durable, suitable for neutral fluids and resistant to many chemicals. The FKM (fluorine rubber or Viton) sealing has excellent chemical properties, is suited for most oils and solvents but it cannot handle hot water or steam. Please note that the internal valve parts, such as the stainless steel plunger and springs, are also in contact with the medium and must be chemically compatible. Consult our chemical resistance chart to verify compatibility of housing and seals with the medium. The manual override feature can be used to commission the system. You can separately adjust the opening and closing time of the valve with set screws, for example to prevent water hammer. The valve's design prevents water hammering. The valve has an IP65 rating if properly connected.

Pros:

• The manual override is ideal for commissioning and in case of power outage
• Good protection against the environment thanks to the IP65 rating
• The response times (open and close) can be adjusted separately
• Solenoid valves open and close very fast compared to many other valve types
• Diaphragm designed to separate aggressive and contaminated media
• Low risk on water hammer, thanks to the dampened closing

Cons:

• Not suited for low pressure differentials (< 0.2 bar). In case of low pressure or a vacuum, consider a (semi-)direct solenoid valve
• The coil may get hot when energized. A well ventilated environment is recommended

Series:

The Bürkert 5282 solenoid valve is used for the most demanding applications. The valve is built to last. The media separation makes the 5282 also suitable for aggressive media. The valve is equipped with standard features such as a manual override and adjustable opening and closing times. Furthermore, the circuit function can easily be changed from NC to NO, by simply rotating the 3/2 way pilot valve on top of the main valve body. The 5282 valve is available with a wide variation of housing and sealing materials. The brass housing satisfies all European drinking water requirements. Various ATEX versions are available for potentially explosive environment.

Please note: this product is made to order and can unfortunately not be returned.