78 | 180R9346 | AQ240486503020en-001702
© Danfoss | 2023.03
Operation guide
Installation, Operation and Maintenance APP 53-92 pumps
BoWex-ELASTIC
®
Operating/Assembly instructions
Type HEW, HEW Compact and HEW-ZS
KTR-N
Sheet:
Edition:
40114 EN
18 of 22
7
Please observe protection
note ISO 16016.
Drawn:
2017-04-24 Shg/Hk
Replacing:
KTR-N dated 2013-06-10
Verified:
2017-04-24 Shg
Replaced by:
In respect of environmental protection we would ask you to dispose of the packaging or products on termination of
their service life in accordance with the legal regulations and standards that apply, respectively.
Metal
Any metal components have to be cleaned and disposed of by scrap metal.
Nylon materials
Nylon materials have to be collected and disposed of by a waste disposal company.
A basic requirement to ensure the readiness for use of the coupling is a stock of the most important spare parts
on site.
Contact addresses of the KTR partners for spare parts and orders can be obtained from the KTR homepage at
www.ktr.com.
KTR does not assume any liability or warranty for the use of spare parts and accessories
which are not provided by KTR and for the damages which may incur as a result.
9
Enclosure A
Advice and instructions regarding the use in
potentially explosive atmospheres
Type HEW1 and HEW2:
hub / elastomer / coupling flange
Annex A applies for BoWex-ELASTIC
®
HEW1 and HEW2 only.
Conditions of operation in
potentially explosive atmospheres
BoWex-ELASTIC
®
couplings are suitable for the use according to EU directive 2014/34/EU.
Industry (with the exception of mining)
Equipment group II of category 2 and 3 (
coupling is not approved for equipment group 1
)
Media class G (
gases, fogs, steams
), zone 1 and 2 (
coupling is not approved for zone 0
)
Media class D (
dusts
), zone 21 and 22 (
coupling is not approved for zone 20
)
Explosion group IIB (
explosion class IIA are included in IIB
)
Temperature class:
Temperature class
Ambient or operating temperature T
a
Max. surface temperature
1)
T4, T3, T2, T1
- 30 °C to + 80 °C
115 °C
2)
T5
- 30 °C to + 65 °C
100 °C
T6
- 30 °C to + 50 °C
85 °C
Explanation:
The maximum surface temperatures each result from the maximum permissible ambient or operating temperature T
a
plus the
maximum temperature increase
T of 35 K which has to be taken into account.
1) The ambient or operating temperature T
a
is limited to + 80 °C due to the permissible permanent operating temperature of
the BoWexELASTIC
®
elastomer parts used.
2) The maximum surface temperature of + 115 °C applies for the use in locations which are potentially subject to dust explo-
sion, too.
7
Disposal
8
Spares inventory, customer service addresses
9.1 Intended use in
hazardous locations
