BURKERT 344687 Type 2000 is a pneumatically operated 2/2-way angle seat valve designed for the controlled flow of liquid and gaseous media. This specific model features a stainless steel body, a PA (Polyamide) actuator, and a G 1 1/4 internal thread connection. It operates with a normally open (NO) control function (Control Function B) and is configured for flow below the seat, making it highly suitable for high flow rates and long service life in demanding industrial environments.

Product Structure

The angle seat valve consists of a pneumatically actuated piston actuator with an optical position indicator and a 2/2-way valve housing. The reliable self-adjusting packing gland provides high sealing integrity.

Working Principle

Control Function B (CFB): The valve is open in the rest position by spring force. Pneumatic control pressure generates the closing force on the pendulum disc.

Flow Below Seat: As the medium pressure is under the pendulum disc, this pressure contributes to the opening of the valve. The flow inlet is under the valve seat.

WARNING

If the minimum control pressure is too low for Control Function B or the permitted medium pressure is exceeded, leaks may occur!

Technical Data

• Nominal Diameter: DN32
• Port Connection: G 1 1/4 Internal thread
• Operating Pressure: 0 to 25 bar
• Medium Temperature: -10 °C to +185 °C
• Ambient Temperature: -10 °C to +55 °C
• Kv Value (Water): 29 m³/h
• Body Material: Stainless steel
• Actuator Material: PA (Polyamide)
• Seat Seal: PTFE

Installation

• The angle seat valve can be installed in any position, preferably with the actuator face up.
• Before connecting the valve, ensure the pipelines are flush (stress-free).
• Observe the direction of flow.
• For control function B, it is not necessary to apply compressed air for installation.