LEYBOLD 215130, Руководство пользователя

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DESCRIPTION OF PRODUCT
8/40 17200295_002_C0/2016 - © Leybold 270727EI.DOCX
1.4 Technical data
Standard valves see chapter «1.3 Validity of the user manual».
For special valves which are not listed in chapter «1.3 Validity of the user manual» the
product data sheet is applicable in addition.
Material
Material
Item Aluminum version Stainless steel version
Body Aluminium (AIMgSi) Stainless steel (AISI 304)
Actuator Aluminium Aluminium
Valve plate AISI 316L AISI 316L
Bellows AISI 316L (1.4404, 1.4435)
AISI 316 Ti (1.4571) AISI 316L (1.4404)
AISI 316 Ti (1.4571)
Bonnet seal, plate seal
Viton ® Viton ®
Cover of position indicator
Plastic Plastic
Table 1-2
General technical data
Value / description
Type / Item DN 16 DN 25 DN 40 DN 50
Leak rate [mbar l/s] ≤
1 · 10
-9
Pressure range: valve open
[mbar], absolute
1 · 10 -8 to 5000
Differential pressure on the
plate [bar]
In opening direction 2 ≤ 2
In closing direction 2 ≤ 5
Differential pressure at
opening [bar]
≤ 2 in either direction
2 see «Figure 3-1»