Bardiani Valvole VVF Series, Инструкция по эксплуатации и обслуживанию, Страница: 9 / 81

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3 Technical data
EN-IST-VVF-1220
3 TECHNICAL DATA
VALVE DATA
Maximum pressure 10 bar (DN15-100) - 8 bar (DN125) - 6,5 bar (DN150)
Storage temperature from -10°C to 25°C
Material in contact with the product AISI 316L (1.4404). Check the resistance to corrosion in
relation to products and detergents
Gasket material in contact with the
product EPDM, FKM, MVQ, HNBR, and other gaskets on request.
Check compatibility with products and detergents
Surface finish in contact with the
product Ra 0.8 µm. Other finishes available on request
GASKET MATERIALS COMPATIBILITY
Product EPDM FKM HNBR MVQ
Temperature (applications with air) from -10°C to
+140°C from -10°C to
+200°C from -10°C to
+130°C from -70°C to
+230°C
Caustic soda 2% 60°C 30°C To be checked Unsuitable
Nitric Acid 2% 60°C 80°C To be checked Unsuitable
Saturated steam 125°C Suitable To be checked Suitable Unsuitable
Greases Unsuitable Suitable Suitable Unsuitable
Alcohols Suitable Unsuitable Suitable Suitable
The valve complies with PED 2014/68/EU directive, with special reference to
Annex III, Module A, concerning internal manufacturing checks as indicated in the
Conformity Assessment Procedures.
Valves with DN equal or smaller than DN25 are not included in compliance with Article 4, paragraph 3.
Valves designed for use with gases, liquefied gases, gases dissolved under pressure, vapours and also those liquids whose
vapour pressure at the maximum allowable temperature is greater than 0,5 bar above normal atmospheric pressure (1
013 mbar) are included within the following limits:
- valves with DN between DN32 and DN100 (included) with group 1 fluids;
- valves with DN125 or bigger with group 2 fluids.
The end user is asked to carry out the acoustic emission tests once the valve has been installed in the destination
plant.
In the event of any doubt, please contact Bardiani Valvole S.p.A.