2.3.1
Overview
The Easytop system fittings comply with the test require‐
ments specified in the applicable regulations, see
lations from section: Overview“ on page 7.
Sound protection L
ap
≤
20 dB(A)
The model is equipped as follows:
n
valve casing made of gunmetal/silicon bronze
n
valve top made of gunmetal/silicon bronze (dead space free)
n
dual-sided flange connection pursuant to applicable regulations, see
„Regulations from section: Overview“ on page 7
n
valve seat and valve plate unit made of stainless steel
n
non-rising spindle
n
position indication open/closed
n
handwheel with exchangeable coloured plastic cap as
media labelling
n
combined backflow preventer (CBP)
n
drainage / testing plugs G
¼
upstream and downstream from the
backflow preventer for DN 50
n
drainage / testing plugs G
⅜
upstream and downstream from the
backflow preventer for DN 65, 80, 100
n
valve and spindle seal made of EPDM (maintenance-free)
The model is fitted with a backflow preventer.
Backflow preventers only allow flowthrough in one direction (in the
direction of flow). If the direction of flow changes, e.g. due to back suc‐
tion, the backflow preventers close automatically.
The model is available in the following dimensions: DN 50 / 65 / 80 / 100
2.3.2
Markings on components
The model is marked as follows:
n
flow direction indicator
n
dimension
n
DVGW writing
n
position indicator below the handwheel, with CRV writing
n
EA marking for classification in accordance with the applicable regu‐
lations, see
„Regulations from section: Marking on compo‐
Backflow preventer
Product information
Easytop XL CRV slanted seat valve (combined free flow valve with backflow preventer) with flange connection
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