Burkert Type 6014 - Plunger Valve

The Burkert Type 6014 valve is a direct-acting plunger valve. The plunger guide tube and the stopper are welded together; this enhances the valve's pressure resistance and ensures a leak-free structure. Different combinations of seal material are available for multiple applications. The main features of the valve are the following:

• The valve has a compact design with diameters up to DN 2.5.
• The valve is equipped with a bolted coil system (securely attaching a coil to a valve, ensuring it remains stable and protected from potential damage caused by vibrations).
• The banjo-threaded connection enables direct mounting on pneumatic valves. A banjo-threaded connection is a fluid fitting consisting of a hollow bolt with a hole through its side and a specialized hollow nut, enabling fluid flow through the fitting when connected to another component, often used in pneumatic and hydraulic systems. The hollow bolt resembles a banjo, which gives the connection its name.
• Explosion-proof versions are available.
• The valves can be efficiently arranged on a manifold to reduce space, resulting in a compact design.
• Energy-saving design with 'kick and drop' coils for reduced power consumption during operation. The 'kick coil' initiates the valve's movement with a burst of energy but consumes less power during continuous operation. The 'drop coil' requires less energy to maintain the plunger's position after the initial movement, thus reducing the power consumed.

Is Burkert Type 6014 valve the right choice?

The valve might be the right choice for an application if:

• The valve is used in potentially explosive atmospheres
• It's crucial to reduce the power consumption during valve operation
• The application involves tight spaces and high pressures

General technical data

Materials

• Seal: FKM (EPDM can be designed on request)
• Coil: Polyamide (Epoxy can be designed on request)
• Body: Stainless steel 1.4305/303 or brass
• Nominal diameter: DN 1.5-DN 2.5
• Circuit function: C, D, and T (discussed later)

Performance data

The duty cycle is the ratio of the time the valve can be energized (powered on) to the total time it can operate continuously without overheating. The valve assembly can be operated continuously at 100% duty cycle without any time restrictions. However, intermittent operation should not be energized for more than 60% of a 30-minute period. Additionally, there may be an option for a 5-watt coil if required for specific applications.

Operating medium

The valve is compatible with neutral gasses and other fluids such as town gas, compressed air, natural gas, hydraulic oil, water, and petrol. It is also suitable for use in technical vacuum applications.

Connection and communication

• Port connections:
  • G ⅛ and G ¼
  • NPT ⅛ and NPT ¼
  • Sub-base, SFB (a component that provides a mounting surface and flow paths for valve components, enabling fluid or gas regulation within the system)
• Electrical connection: DIN EN 175 301-803 form A for cable plug Type 2518

Approvals and certifications

The valve has ATEX and IECEx approvals ensuring safety in potentially explosive atmospheres.

Circuit functions

Circuit function C (CF C)

The valve functions as a 3/2-way normally closed direct-acting solenoid valve.

Circuit function D (CF D)

The valve functions as a 3/2-way normally open direct-acting solenoid valve.

Circuit function T (CF T)

The valve is a 3/2-way direct-acting solenoid valve (normally closed) with an optional flow direction. The valve's internal design permits fluid flow in either direction, and the installer can choose the desired orientation during installation to achieve the desired functionality.

Electrical data

The valve is designed to work with a power supply of 24 volts direct current (24 V DC). To ensure safety, the valve is used with an intermediary intrinsically safe apparatus that acts as a protective middleman between the 24 V DC power supply and the valve.

Table 1: Function values at different temperatures

Function values for valve	At 20 𐩑C (68 𐩑F)	At 55 𐩑C (131 𐩑F)
Minimum switching current	30 mA	30 mA
Nominal resistance coil	310 ohms	360 ohms
Minimum terminal voltage	9.3 V	10.8 V

Table 2: Maximum allowable values for the valve

Ui (Input voltage)	28 V
Ii (Input current)	120 mA
Pi (Input power)	1.1 W
Ambient temperature	140 𐩑F at T6
	167 𐩑F at T5

Installation (Wiring)

There are three valve terminals. Terminals 1 and 2 are connected to the supply, and terminal 3 acts as the ground. The label on the coil indicates the polarity of the coil (direction of current when energized).

• - switch ON +: When the switch is turned on, the coil gets energized, creating a magnetic field. In this state, the positive wire should be connected to terminal 2, and the negative wire should be connected to terminal 1 of the valve. This activates the valve, allowing fluid to flow from one port to another.
• + switch OFF - : The coil gets de-energized when the switch is turned off. In this state, the positive wire should be connected to terminal 1, and the negative wire should be connected to terminal 2 of the valve. This deactivates the valve, stopping the flow or allowing it to pass through a different port.