BURKERT 378094 is a complete Type 2100 pneumatically operated 2/2-way angle seat valve designed for on/off shut-off duty in demanding process applications. Configured with control function A (normally closed), the valve operates with flow over seat and features a DN 15 (15 mm seat diameter) orifice with internal G 1/2 threaded process ports. Constructed with an investment-cast stainless steel body and a virgin PTFE seat seal, the valve provides bubble-tight shut-off across an operating pressure range from -0.9 bar vacuum up to 16 bar positive pressure, delivering a nominal water flow factor Kv of 5.3 m³/h.

Flow Direction

Flow direction is configured above seat. This arrangement prevents water hammer during closing on compressible media and provides positive sealing under reverse pressure differentials up to rated limits.

Technical Specifications

Parameter	Value
Valve Type	Type 2100
Item Number (SKU)	378094
Construction Type	Complete valve
Valve Function	2/2-way, 2 switch positions
Control Function	A - normally closed (NC)
Actuation Type	Pneumatic
Flow Direction	Above seat
Nominal Diameter (DN)	15 mm
Seat Diameter	15 mm
Port Connection 1	Internal thread G 1/2
Port Quantity	2 fluidic ports
Flow Factor Kv (Water)	5.3 m³/h
Operating Pressure Range	-0.9 bar to 16 bar
Nominal Pressure Class	PN 25 (DIN EN 1333) / Class 150 (DIN EN 1759)
Pilot Pressure Range	3 bar to 10 bar
Medium Temperature Range	-10 °C to 185 °C
Ambient Temperature Range	-10 °C to 100 °C
Installation Length	65 mm

Materials of Construction

All wetted and non-wetted materials are selected for chemical compatibility and thermal resilience:

• Valve Body: Stainless steel
• Seat Seal: PTFE (Polytetrafluoroethylene)
• Actuator Housing: PPS (Polyphenylene sulphide)
• Swivel Plate: Stainless steel

Operating Conditions and Media Capabilities

BURKERT 378094 accommodates neutral gases, steam, water, and aggressive process fluids within a temperature window of -10 °C to 185 °C. The unit functions in ambient temperatures from -10 °C up to 100 °C.

CIP / SIP Compatibility

The assembly is fully CIP (Clean-in-Place) and SIP (Steam-in-Place) capable, permitting in-line chemical washing and steam sterilization cycles up to 185 °C without requiring disassembly from the piping line.

• Vacuum Variant: Qualified for vacuum service down to -0.9 bar gauge.
• Oxygen Variant: No (standard configuration; not degreased for gaseous oxygen duty).
• Control Cone: No (standard flat seat on/off disc, not for fine throttling).
• Manual Override: Not equipped.
• Position Indicator: Not included on base actuator housing.

Pneumatic Actuator and Control Interface

The valve is driven by an integrated compact pneumatic piston actuator molded from polyphenylene sulphide (PPS). The internal piston acts on a stainless steel swivel plate to align the valve spindle precisely under spring return force.

• Control Function: A (normally closed by internal spring packet).
• Pilot Pressure: 3 bar minimum to 10 bar maximum.
• Pilot Port Connection: Interface ELEMENT.
• Pilot Air Port Diameter: 6 mm tubing connection.

Standards, Approvals, and Compliance

BURKERT 378094 carries formal explosion protection and sanitary material conformity certifications:

• ATEX / IECEx Gas Approval: II 2 G Ex h IIC T4...T2 Gb / A367 Ex h IIC T4...T2 Gb
• ATEX / IECEx Dust Approval: II 2 D Ex h IIIC T135°C...T300°C Db / Ex h IIIC T135°C...T300°C Db
• Food Contact Suitability: Food (EC) 1935/2004 compliant according to Manufacturer Declaration
• Pressure Standards: Meets DIN EN 1333 (PN 25) and DIN EN 1759 (Class 150)
• Inspection Documentation: Manufacturer's test certificate 3.1 is not enclosed as standard

Installation and Dimensions

With an overall face-to-face installation length of 65 mm, the valve connects via standard G 1/2 cylindrical internal threads according to DIN ISO 228/1. Install the unit in any orientation, observing the directional flow arrow indicated for flow above the valve seat.