BURKERT 20071992 (Type 6014) is a direct-acting 3/2-way plunger solenoid valve configured for normally closed (Circuit Function C) operation with an integrated emergency manual override. The unit features an orifice diameter of 1.50 mm (1/16 inch), operating across a pressure range of 0.00 bar to 6.00 bar for both gaseous and liquid media. Constructed with a polyamide (PA) valve body designed for Bürkert 32 mm x 32 mm version A1 sub-base (SFB) mounting, it delivers a water flow factor Kv of 0.07 m³/h and an air flow rate QNn of 75 l/min.

Designed for hazardous environments, this configuration includes an encapsulated explosion-proof coil system certified under ATEX and IECEx directives (Ex mb IIC T5 Gb / Ex mb IIIC T95 °C Db). It is equipped with a factory-sealed 5,000 mm (5 m) polyolefin wire cable, rated for 24 V AC/DC (50/60 Hz), and certified for modular block mounting on multi-station pneumatic manifolds within ambient temperatures from -10 °C to +50 °C.

Circuit Function and Operating Principle

Type 6014 operates as a direct-acting plunger valve where the solenoid core acts directly on the valve seats without requiring pilot differential pressure. The stopper and the core guide tube are welded together to enhance internal pressure resistance and leak-tightness under continuous cycling. When de-energized, return spring force holds the lower plunger seal against inlet port 1 (P/NC), blocking flow, while outlet port 2 (A/OUT) remains vented through exhaust port 3 (R/NO). Upon electrical energization of the coil, the magnetic circuit draws the armature upward, opening the path from port 1 to port 2 and sealing exhaust port 3.

Function Code	Description	De-energized State	Energized State
Circuit Function C (WW C)	3/2-way valve, direct-acting	Inlet port 1 (P) closed; outlet port 2 (A) connected to exhaust 3 (R)	Inlet port 1 (P) connected to outlet port 2 (A); exhaust port 3 (R) closed

Emergency Manual Override

The built-in manual override allows manual valve actuation during system setup, maintenance, or electrical interlock testing. The operator can mechanically displace the plunger to switch flow paths without energizing the coil. When operating via manual override, slight media leakage may occur depending on system pressure.

Technical Specifications and Operating Limits

Valve 20071992 controls technical vacuum, neutral gases, and neutral fluids, including compressed air, town gas, natural gas, water, hydraulic oils, and petrol up to a maximum kinematic viscosity of 21 mm²/s. Switching performance measured at +20 °C and 6 bar at the valve outlet demonstrates an opening time between 10 ms and 15 ms (pressure increase 0% to 90%) and a closing time between 15 ms and 20 ms (pressure decrease 100% to 10%).

Specification Parameter	Value / Range
Resource Article Number	20071992
Model Family	Type 6014
Valve Construction	Complete valve
Nominal Orifice	1.5 mm (1/16")
Operating Pressure (Gases / Liquids)	0.00 bar to 6.00 bar (gauge)
Flow Coefficient Kv (Water)	0.07 m³/h
Flow Coefficient QNn (Air)	75 l/min
Nominal Operating Voltage	24 V UC (AC: 50/60 Hz / DC)
Nominal Power Rating (SFB Block Mounting)	7 W
Medium Temperature Range	-10 °C to +90 °C
Ambient Temperature Range	-10 °C to +50 °C (T5 rating)
Maximum Fluid Viscosity	21 mm²/s
Switching Times (at 6 bar, +20 °C)	Opening: 10 ms to 15 ms; Closing: 15 ms to 20 ms
Degree of Protection	IP65
Mounting Orientation	Unrestricted; actuator upright orientation recommended

Permissible Pressures in Alternate Circuit Functions

Type 6014 valves use springs matched to specific functions. If reconfigured into alternative configurations, the maximum permissible operating pressure changes according to internal balance. For DN 1.5 units built with Function C springs, the maximum allowable pressures are: Function A: 16 bar; Function B: 22 bar; Function C: 16 bar; Function D: 2 bar; Function T: 2 bar.

Material Specifications and Structural Design

The media-wetted components of Burkert 20071992 combine high-grade technical polymers and corrosion-resistant stainless steels. The valve body is molded from polyamide (PA), providing mechanical stability while isolating the fluid path. The core guide assembly uses stainless steel grades 1.4105, 1.4303, and 1.4310 to ensure corrosion resistance against neutral industrial liquids and gases.

Item	Component	Material
1	Stopper	Stainless steel 1.4105 / AISI 430F
2	Nut	Steel, thick-film passivated (brass body) / Stainless steel 1.4305 PTFE coated
3	Shading Ring	Copper (brass variant) / Silver (stainless steel variant)
4	Plunger Seal	FKM (Fluor rubber)
5	Springs	Stainless steel 1.4310 / AISI 301
6	Magnetic Core (Armature)	Stainless steel 1.4105 / AISI 430F
7	Core Guide Tube	Stainless steel 1.4303 / AISI 305 / 308
8	O-Rings	FKM (Fluor rubber)
9	Lower Plunger Seal	FKM (Fluor rubber)
10	Valve Body	Polyamide PA (Sub-base SFB variant)
11	Fastening Screws	Brass / Stainless steel 1.4301 / AISI 304
12	Sub-Base Plate	Steel, thick-film passivated / Stainless steel 1.4301 / AISI 304
13	Encapsulated Coil Body	Epoxy encapsulation

Explosion Protection and Electrical Connection

Burkert 20071992 is engineered for operation in explosive atmospheres categorized under ATEX and IECEx standards. The coil features encapsulated Ex "m" construction, sealing electrical elements against combustible dust and gas ingress. The unit is certified under EU-Type Examination Certificate EPS 18 ATEX 1232 X and IECEx EPS 18.0110 X.

• Gas Explosion Protection: II 2 G Ex mb IIC T5 Gb
• Dust Explosion Protection: II 2 D Ex mb IIIC T95 °C Db
• Application Suitability: ATEX Category 2 (Zone 1 and Zone 21); modular block mounting permitted

Electrical Wire Configuration (3-core, halogen-free polyolefin cable): • Green-Yellow Wire: Protective Conductor (PE / Earth Ground) • Black Wire 1: Neutral Conductor / Cathode (-) • Black Wire 2: Phase / Anode (+)

Temperature Class and Safety Rules

1. Thermal Margin: The maximum process medium temperature must never exceed the permitted temperature class minus 5 K (for T5: +100 °C - 5 K = +95 °C; resource limit is +90 °C).
2. Electrostatic Precautions: To prevent ignition risks from electrostatic discharge, clean the external surfaces only with a damp or antistatic cloth. Do not use the device in environments with intense charge-generating processes or pneumatic dust transport.
3. Continuous Grounding: All metallic components must remain grounded through the integrated protective green-yellow conductor. Ensure electrical continuity between the core guide tube and the earth conductor before energizing.

Flange Sub-Base Dimensions and Manifold Assembly

The valve utilizes the standardized Bürkert sub-base flange interface (SFB version A1), measuring 32 mm x 32 mm with a base depth of 14.3 mm and overall body length of 32.6 mm. The coil width (dimension E) measures 32 mm, and coil length (dimension F) is 46 mm for coil size 5.

Interface Type	Body Dimension B [mm]	Base Height C [mm]	Body Length D [mm]	Coil Width E [mm]	Coil Length F [mm]
Sub-base Flange (SFB)	32	14.3	32.6	32	46

Manifold Block Mounting Guidelines

When installing multiple valves on modular manifold blocks, adhere to the following installation specifications:

• Duty Cycle: 5 W / 7 W coil variants support 100% continuous operation (ED). Standard 8 W coils must be limited to 60% intermittent duty (30 min) during manifold block mounting.
• Port Porting Identification: Pressure supply channels are designated P(R) and outlet channels are designated A(B). Connect only identically marked channels together.
• Combined Mounting: Type 6014 (Function C) can be grouped alongside Type 6013 2/2-way valves on common manifolds provided operating pressures match nameplate specifications.

Ordering Information and Manifold Accessories

Burkert provides modular aluminum manifolds, connector nipples, and blanking plates to assemble compact valve clusters using SFB flange-mounted units.

Accessory Description	Valve Positions	Hole Spacing A [mm]	Total Length B [mm]	Hole Spacing C [mm]	Article Number
Multiple Manifold (Aluminium)	2	57	65	—	005023
Multiple Manifold (Aluminium)	3	90	98	—	005286
Multiple Manifold (Aluminium)	4	123	131	—	005287
Multiple Manifold (Aluminium)	5	156	164	57	005035
Multiple Manifold (Aluminium)	6	189	197	57	005038
Multiple Manifold (Aluminium)	8	255	263	90	005386
Multiple Manifold (Aluminium)	10	321	329	90	005764
Single Manifold (Aluminium)	1	—	—	—	005020
Plug Nipple with O-Rings	—	—	—	—	005040
Covering Plate Kit (with screws & O-ring)	—	—	—	—	005630