4 Valve Description
15 of 50
8417.8/20-EN
5
Maximum permissible pressure for
dead-end service or downstream
dismantling
6
Maximum permissible temperature
7
Pipe flange connection
8
Month and year of construction
9
Serial number
10
CE symbol with identification
number of the notified body
4.5 Design details
Design
▪
Semi-lug body - T2 (BOAX-S)
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Full-lug body with raised faces - T4 (BOAX-SF)
▪
Suitable for downstream dismantling and as dead-end valve (BOAX-S/SF)
▪
Maintenance-free butterfly valve
▪
Extended neck allows insulation (in acc. with applicable German energy-saving
regulation, for DN 20 to 200)
▪
Thermal barrier enables straightforward fastening of insulation at the top flange
skirt.
▪
Elastomer liner: thicker elastomer in the area of the shaft passage ensures leak-
proof sealing to atmosphere
▪
The spherically machined valve disc ensures perfectly tight shut-off: no leakage
visible to the naked eye
▪
Shell and leak test to EN 12266-1, leakage rate A, and ISO 5208, category A
▪
Face-to-face length to ISO 5752-20 and EN 558-1-20
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Top flange to ISO 5211
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Flange connections to EN/ISO PN 6 (BOAX-S), 10 and 16
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Marking in accordance with EN 19
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Valves manufactured without paint wetting impairment substances
▪
Body coating: polyurethane, 80 μm, RAL 2002 (orange)
▪
Standard manual actuation:
– LP lever
– MA and MR manual gearboxes
Variants
▪
BOAX-S/SF THERMAX
The thermometer of BOAX-S/SF with lever can measure temperatures from 0 °C
to +140 °C in heating systems and temperatures from -20 °C to +60 °C in cooling
systems. DN 20-250, accuracy class 1.
Actuator variants
▪
Data of LP levers:
– 4 handle lengths: 165 mm, 260 mm, 330 mm and 460 mm
– Made of aluminium alloy
– Coating:
- Handle: polyurethane, thickness 80 µm, colour: RAL 9011, black
- Toggle lever: polyurethane, thickness 80 µm, colour: RAL 2002, orange
– Cannot be removed
– Can be locked in 13 positions (2 limit positions and 11 intermediate positions)
▪
The handwheel of the MA manual gearbox can be locked with a chain (padlock
not included in scope of supply).
▪
Characteristics of MA manual gearboxes:
Summary of Contents for BOAX-B
Page 1: ...Butterfly Valve Installation Operating Manual ...
Page 49: ......