BURKERT 320735 Type 2300 is a pneumatically operated 2-way angle seat control valve designed for demanding process environments. This specific model features a stainless steel body with a weld end connection (DN 25), a PEEK seat seal, and operates normally closed (NC) with flow below the seat. In line with BURKERT's philosophy for modular valves, the Type 2300 utilizes a parabolic trim that results in a flow characteristic approximately 35% larger than conventional control valves. Unrivalled cycle life and sealing integrity are guaranteed by the proven self-adjusting packing gland.

Features

• Excellent combination of good control characteristic and high flow rate
• Long service life with self-adjusting packing gland
• Control units can be mounted directly without external tubing
• Stainless steel housing with weld end connection
• Food (EC) 1935/2004 compliant according to Manufacturer Declaration

Control Functions

This model operates with Control Function A (CFA): Pneumatically operated 2/2-way on/off valve, normally closed by spring force.

The flow direction is always below the valve seat. Because the medium pressure is below the control cone, it helps open the valve.

WARNING

Valve leak if there is too little minimum pilot pressure or high medium pressure! Minimum pilot pressure that is too low, or failing to meet the permitted medium pressure, can cause a leak in the valve seat.

Materials

Element	Material
Actuator cover	PPS (Polyphenylene sulphide)
Actuator casing	Stainless steel 1.4561 (316Ti)
Packing gland	PTFE V-rings (filled), with spring compensation
Spindle	Stainless steel 1.4401 (316)/1.4404 (316L)
Seat seal	PEEK (Polyetheretherketone)
Valve body	Stainless steel CF3M

Dimensions (Welded Connection)

Nominal diameter	DIN EN ISO 1127 / ISO 4200 / DIN 11866 series B
DN 25	ES: 26, CS: 43, LS: 130, Ø DS: 33.7, WS: 2.0

Operating Limits

• Medium Temperature: -10 °C to +185 °C
• Ambient Temperature: -10 °C to +100 °C
• Operating Pressure: 0 to 10 bar
• Control Pressure: 5.5 to 7 bar
• Kv value (water): 16 m³/h

DANGER

Risk of injury from high pressure in the system! Before loosening lines and valves, turn off the pressure and vent the lines.

INFO

Installation Note: When welding the valve body into the pipeline, the control unit must not be installed. Uninstall the control unit from the actuator before welding.