Pre-volume deflagration flame arrester

Name: Pre-volume deflagration flame arrester
Brand: WIKA

For mounting to zone 0 (EPL Ga)

Range

0…16 bar

Accuracy

1.0

CERoHSIECExREACHIECEx IICATEX II G IICATEXII G IIC

Price

On request

Depends on configuration

Request a quote

+38 (067) 285-77-70·info@avigan.com.uaViberTelegram

Description

The model 910.21 pre-volume deflagration flame arrester enables the mounting of pressure measuring instruments and diaphragm seal systems in areas with requirements to EPL Ga (zone 0).

The model 910.21 is expertly connected to a measuring instrument at the factory to form a measuring assembly. The pre-volume deflagration flame arrester enables the flow of fluids, but prevents the flame tranmission from the instrument side (unprotected side) to the process side (protected side) in the event of a failure.

Special features

Fulfils the requirements of flame arresters in accordance with EN ISO 16852
With ATEX and IECEx approval

Identification

Model	910.21
Product family	910
Subcategory	Flame arrester

Measuring range

Pressure ranges

0…16 bar

Accuracy

Accuracy class	1.0
Accuracy standard	EN ISO 16852:2016

Process conditions

Process temperature

−40…+60 °C

Materials

Wetted parts material

Stainless steel, Monel, Hastelloy, 316L

Operating environment

Ambient temperature

−40…+60 °C

Certifications and approvals

Certifications	CERoHSIECExREACH
Explosion protection	IECEx IICATEX II G IICATEXIECExII G IIC

Additional details

Datasheet languages

Tables from datasheet

Basic information

Standard	EN ISO 16852:2016 'Flame arresters …'
Measuring assembly
Variant 1	Pressure gauge with Ex approval and integrated model 910.21
Variant 2	Diaphragm seal system 1) with integrated model 910.21
Permissible media	Flammable gases and vapours occurring during operation may be classified into explosion group IIC with a nominal gap width of ≥ 0.29 mm.The use for explosive gas, mist, vapour or air mixtures which are volatile (e.g. acetylene, carbon disulfide) or for chemically instable substances is not permitted.
Material (wetted)
Variant 1	■ Stainless steel (typically) ■ Special materials such as the wetted parts of the pressure gauge, e.g. Monel, Hastelloy
Variant 2	Model 910.21 is non-wetted
Components of the measuring assembly	Mounting parts, such as cooling elements, connection adapters, capillaries, etc., are located on the protected process side. Measuring assemblies with capillaries are, generally, protected ex-works with a capillary protective tube (wall thickness approx. 0.2 mm).

Further details on: Measuring assembly, variant 1 Pressure gauge with Ex approval and integrated model 910.21

Pressure gauge with Ex approval	■ Pressure gauge (e.g. models 232.50, 432.50, 732.51) ■ Contact pressure gauge (e.g.PGS23, PGS43, DPGS43) ■ Pressure gauge with output signal (e.g.PGT23, PGT43, DPGT43)

Further details on: Measuring assembly, variant 2 Diaphragm seal system with integrated model 910.21

Pressure measuring instrument with Ex approval	■ Pressure gauge (e.g. models 232.50, PGS43, DPGT43) ■ Model CPG1500 ■ Model IS-3 ■ Model UPT-20 ■ Model IPT-20 ■ Model DPT-10
Diaphragm seal	■ Diaphragm seal with flange connection ■ Diaphragm seal with threaded connection ■ In-line diaphragm seal ■ Diaphragm seal with sterile connection

Operating conditions

Lu/D=n/a	Ratio of the pipe length of the unprotected side to the pipe diameter
BC:c	Classification under stabilised combustion, combustion classification c (no burn time)
-40 °C ≤ T 0 ≤ 60 °C	Permissible operating temperature The measuring point for the permissible temperature in the final application is the position symbol of the zone separation.
P 0 = 1.1 bar	Maximum ambient pressure

View all (5)

Logo	Description	Country
	EU declaration of conformity Hazardous areas II GIIC	European Union
	IECEx Hazardous areas IIC	International