EV/VS, EV/VD

Name: EV/VS, EV/VD
Brand: PROTEGO
SKU: prod4596457521155

Flame Arrester Unit for vacuum pumps, compressors and blowers

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Features

Modular Design

Allows Replacement and Cleaning of Single FLAMEFILTER®

Differnt Series

Allow Increase of FLAMEFILTER® Size for Given Flange Connection Resulting in Lower Pressure Drop Across the Device

Spare Parts

Cost-Effective Spare Parts

Versatile Application Options

Various Uses Possible

Stainless Steel or Hastelloy

all Function-Relevant and Product-Contacting Parts Are Made of Stainless Steel or Hastelloy

Temperature Sensors Possible

Use of Temperature Sensors for G 1½ and G 2 Is Possible

Function and Description

Against the Propagation of Explosions

EV/VS and EV/VD Flame Arrester Units provide manufacturers of vacuum pumps, blowers and compressors with a cost-effective protection for their machines. The high flow velocities in the small gaps of these machines can lead to undesirable ignitions within the housing. One of the safest measures against explosion propagation are Flame Arrester Units that are installed on the inlet and outlet side of the machines.

Main Component – PROTEGO® Flame Arrester Unit

EV/VS for inlet (vacuum side) and EV/VD for outlet (pressure side) are Flame Arrester Units without housing. They are designed modular providing each manufacturer of blowers, vacuum pumps or similar devices the option of using optimized, adapted, and cost-effective Flame Arrester Units. Our expert technical staff will assist you with the proper selection of the devices as well as execution of type testing.

For Explosion Groups IIA to IIC

EV/VS and EV/VD Flame Arrester Units are modular in design and consist of several FLAMEFILTER® (1) installed within the FLAMEFILTER® cage (2). The number of FLAMEFILTER® and the gap size depend on the intended use. Both types have a threaded nozzle for temperature sensors. EV/VS and EV/VD Flame Arrester Units are available for explosion groups from IIC to IIA (NEC groups B to D) and special gases such as Ethylene oxide.

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Product Data

Dimensions

Dimensions in mm / inches

Material flame arrester unit

Design	A	B	C
FLAMEFILTER® cage	Steel	Stainless steel	Hastelloy
Gasket	PTFE	PTFE	PTFE
FLAMEFILTER® Set	A, B	B	C

Special materials upon request

Material combinations of flame arrester unit

Design	A	C	D
FLAMEFILTER® *	Stainless steel	Stainless steel	Hastelloy
Spacers	Stainless steel	Stainless steel	Hastelloy

* the FLAMEFILTER® is also available in the materials Tantalum, Inconel, Copper, etc. when the listed cage materials are used.

Special materials upon request

Selection of FLAMEFILTER® gap

FLAMEFILTER® gap

0.7 mm

0.5 mm

0.3 mm

0.2 mm

If you have any questions regarding the selection of the FLAMEFILTER® (number and gap width), our trained specialists will be happy to advise you.

Design Types and Specifications

There are four different designs:

Flame arrester unit for the inlet side, basic designEV/VS –

Flame arrester unit for the inlet side with integrated temperature sensor* for additional protection against short-time burning on one sideEV/VS- T

Flame arrester unit for the pressure side, basic designEV/VD –

Flame arrester unit for the pressure side with integrated temperature sensor* for additional protection against short-time burning on one sideEV/VD- T

*Resistance thermometer for device group II, category (1) 2 (GII cat. (1) 2)