Features
Any Installation Position
(taking the set pressure into account)
For Flammable Liquids
useable for nearly all flammable liquids
Opening by Hand Lever
The ball valve is opened by a hand lever
Atmospheric Deflagrations
Provides protection against atmospheric deflagrations of product vapor/air mixtures
End-of-line Deflagration Flame Arresters
Can also serve as venting and breathing for tanks, equipment parts, and pipelines
Robust Design
Simple and robust design
Function and Description
Flame Arrester Condensate Drain on Valves
The PROTEGO® ZE/TK condensate drain valve is used for
flame transmission-proof
Flame transmission-proof
Characteristic of a device to avoid flashback.
condensate drainage of devices or plant
equipment
Equipment
Machines, appliances, fixed or mobile devices, control parts and accessories, and warning and prevention systems, whether separate or combined, intended for the generation, transfer, storage, measurement, control, and conversion of energy, and for the processing of materials, which have their own potential source of ignition and may cause an explosion.
(e.g., tanks, pipelines, etc.) where flammable liquids can form condensate and flammable
product
Product
Includes equipment, protective systems, devices, components and combinations of these.
vapor/ air mixtures could develop. They can also be used for the venting of tanks, plant components, and pipes that transport or process flammable liquids. The drain valve incorporates an end-of-line
deflagration
Deflagration
Explosion propagating at subsonic velocity (EN 1127-1:1997).
flame arrester
Flame arrester
Device fitted to the opening of an enclosure, or to the connecting pipe work of a system of enclosures, and whose intended function is to allow flow but prevent the transmission of a flame.
.
Main Component – PROTEGO® Flame Arrester Unit
The condensate drain valve PROTEGO® ZE/TK consists of the
ball valve
Ball valve
A ball valve is a flow control device which uses a drilled ball to control flow of the medium.
(1) with hand lever (2), a female threaded connection (e.g., pipe thread G½” up to G1”), and the flame arrester (3) with cover (4).
The elbow fitting (5) is also available as an optional outlet.
The flame arrester (3) consists of the flame arrester casing and FLAMEFILTER®.
The ball valve is opened with the hand lever. When draining condensate, a suitable container is required. When draining flammable and/or toxic products, observe the appropriate safety provisions.

For Explosion Group IIB
The simple and sturdy design is suitable for nearly all flammable liquids and can be installed in any position.
Flame transmission protection is guaranteed against atmospheric deflagrations of product vapor/air mixtures of
explosion
Explosion
Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously.
groups up to IIB (NEC groups D to C) up to an
operating temperature
Operating temperature
Temperature reached when the equipment is operating under design conditions.
of +60°C/140°F and an
operating pressure
Operating pressure
Operating pressure is the pressure existing at normal operating conditions within the system being protected.
up to 1.1 bar/15.9 psi. EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Product Data
Dimensions
| DN | a | b | c | Ø d | e | f | g | h | i | k | l |
| G½" | 60 / 2.36 | 43130 | 33 / 1.30 | 32 / 1.26 | 110 / 4.33 | 55 / 2.17 | 38744 | 45 / 1.77 | 54 / 2.13 | 38 / 1.50 | 67 / 2.64 |
| G¾" | 65 / 2.56 | 35 / 1.38 | 33 / 1.30 | 38 / 1.50 | 110 / 4.33 | 60 / 2.36 | 34 / 1.34 | 45 / 1.77 | 54 / 2.13 | 38 / 1.50 | 67 / 2.64 |
| G1" | 73 / 2.87 | 40 / 1.57 | 33 / 1.30 | 45 / 1.77 | 110 / 4.33 | 65 / 2.56 | 41 / 1.61 | 45 / 1.77 | 54 / 2.13 | 38 / 1.50 | 67 / 2.64 |
Dimensions in mm / inches
Explosion group
| MESG | Expl. Gr. (IEC / CEN) | Gas Group (NEC) |
| ≥ 0,50 mm | IIB | B |
Type of connection
| Pipe thread DIN ISO 228 T1 | DIN |
Design Types and Specifications
There are two designs available:Condensate drain valve, standard designZE/TK - 1
Condensate drain valve with elbowZE/TK - 2
Special designs are available on request.
Material
| Ball valve | Stainless Steel |
| Elbow | Stainless Steel |
| Cover | Stainless Steel |
| FLAMEFILTER® | Stainless Steel |
The valves must be sufficiently resistant to corrosion through the gas/air mixtures or product vapour/air mixtures. This applies mailnly to the FLAMEFILTER®. If necessary, designs in Special stainless steel Quality should be selected.
If you have any questions, feedback, or additional input, our team of experts will be glad to support you.











