BURKERT 20063315 Type 2300 pneumatically operated 2-way angle seat control valve ELEMENT. In line with Bürkert’s philosophy for modular valves and sensors, the construction of the Type 2300 angle-seat valve fulfils tough criteria for process environments. Unrivalled cycle life and sealing integrity is guaranteed by the proven self-adjusting packing gland. The parabolic trim results in a flow characteristic approximately 35% larger than conventional control valves. It features a stainless steel on stainless steel seal for reliable operation. The design enables the easy integration of automation modules whether they are digital electropneumatic positioners or process controllers.

Key Features

• Excellent combination of good control characteristic and high flow rate
• Long service life
• Control units can be mounted directly without external tubing
• Stainless steel housing with NPT 2" internal thread connection
• Control function A (normally closed by spring force)
• Flow direction below seat

Technical Data

Property	Value
Design	Angle seat control valve
Nominal diameter	50 mm (NPT 2")
Safety setting	Normally closed (Control function A)
Flow direction	Flow to open (below seat)
Operating pressure	0 bar(g) ... 7 bar(g)
Nominal pressure	PN 25 (DIN EN 1333), Class 150 (DIN EN 1759)
Pilot pressure	5.5 bar(g) ... 7 bar(g)
Kv value (water)	49 m³/h
Medium temperature	-10 °C ... +185 °C
Ambient temperature	-10 °C ... +100 °C
Valve body material	Stainless steel
Seat seal material	Stainless steel
Actuator material	PPS (Polyphenylene sulphide)

Approvals and Conformities

• Foods and beverages/Hygiene: EC Regulation 1935/2004 of the European Parliament and of the Council. All wetted materials are compliant with EC Regulation 1935/2004/EC according to the manufacturer's declaration. FDA – Code of Federal Regulations compliant.

Structure and Function

The angle-seat control valve consists of a pneumatically operated piston actuator, a control cone and a 2/2-way angle-seat valve body. The control cone is modularly connected to the actuator spindle via a spring-type straight pin, and can thus be quickly replaced. The valve seats are directly integrated. The flow direction is always below the valve seat.

Flow Direction Below Seat

The valve is closed against the medium flow with spring force (control function A, CFA). Because the medium pressure is below the control cone, it helps open the valve.

Materials

No.	Element	Material
1	Pilot air ports	Push-in connector PP (standard)
2	Actuator cover	PPS
3	Actuator casing	Stainless steel 1.4561 (316Ti)
4	Piston seal	FKM
5	Spring	Stainless steel 1.4310
6	Pipe	Stainless steel CF3M
7	Packing gland	PTFE V-rings (filled), with spring compensation
8	Spindle	Stainless steel 1.4401 (316)/1.4404 (316L)
9	Spindle guide	Stainless steel 1.4404 (316L)
10	Body seal	Graphite or PTFE
11	Control cone	Stainless steel 1.4571
12	Spring pin	Stainless steel 1.4310
13	Seat seal	Stainless steel 1.4571
14	Valve body	Stainless steel CF3M

Safety Instructions

DANGER!

Risk of injury from high pressure in the system!

• Before working on the system or device, switch off the pressure and vent or empty the lines.

WARNING!

Risk of injury when opening the actuator! The actuator contains a spring under tension. When the actuator is opened, the spring will jump out and may cause injuries.

• Do not open the actuator.

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.

• Adhere to minimum pilot pressure.
• Do not exceed the medium pressure.