Butterfly Valves

 

BUTTERFLY VALVES

 

 

MAIN APPLICATION:

Service, transport and distribution of:

  • cold and hot industrial water;
  • drinking water;
  • saturated vapours;
  • petroleum products;
  • solid particles-charged fluids (max. 3 % consistency)
  • provided that the manufacturing design and materials are suitable as far as corrosion, erosion and operation safety are concerned.

 

DESIGN AND DIMENSIONAL CHARACTERISTICS:

- type : - « W » - Wafer;

             - « L » - Lug;

             - « F » - Flanged;

- shaft: - one piece;

              - two pieces;

- connecting flanges: - EN, ISO, BS, DIN, ANSI ;

- overall length: - EN, ISO, BS, DIN, ANSI ;

- max. flowing speed for liquids: - 3 m/s – for PN10 ;

                                                            - 4 m/s – for PN16 ;

 

MINIMUM WORKING TEMPERATURE:

+ 800 C / -100 C for NBR gaskets;

+ 1200 C / -100 C for EPDM gaskets.

 

OPERATION:

  1. electrical;
  2. manual;
  3. pneumatical;

 

MOUNTING:

  • flow direction – indifferent;
  • mounting position – indifferent;

 

FACTORY TESTS; TESTING PRESSURES; LEAKAGE:

  • hydraulic tests as per ISO 5208 ;
  • testing pressures:  - shell - 1,5 x PN (bar)

                                              - seat - 1,1 x PN (bar)

  • grade A – no leakage – as per ISO 5208 ;

 

 

PRODUCTS:

 

- BUTTERFLY VALVE

- BUTTERFLY VALVE PN16 WAFER AND LUG DN50÷200 (2"÷8")

- BUTTERFLY VALVE PN10 WAFER AND LUG DN250; 300

- BUTTERFLY VALVE PN10 WAFER AND LUG DN350 ÷ 600

- BUTTERFLY VALVE DN50÷200 SI PN10 250÷600 WAFER AND LUG MANUAL OPERATED

- RESILIENT BUTTERFLY VALVE PN10 DN50÷250

- RESILIENT BUTTERFLY VALVE PN10 DN300÷500

- RESILIENT BUTTERFLY VALVE PN10 DN50÷500 MANUAL OPERATED

- BUTTERFLY VALVE PN10 DN250÷500 ELECTRIC OPERATED WITH NOTOR

- EXCENTRIC BUTTERFLY VALVE

- EXCENTRIC BUTTERFLY VALVE DN10, DN200÷900 WITH FREE SHAFT TYPE EFCN

- EXCENTRIC BUTTERFLY VALVE DN16, DN200÷900 WITH FREE SHAFT TYPE EFCN

- EXCENTRIC BUTTERFLY VALVE DN10, DN200÷900 WITH FREE SHAFT TYPE EFCN MANUAL OPERATED

- EXCENTRIC BUTTERFLY VALVE DN16, DN200÷900 WITH FREE SHAFT TYPE EFCN MANUAL OPERATED

- EXCENTRIC BUTTERFLY VALVE DN10, DN200÷900 WITH FREE SHAFT TYPE EFCN ELECTRIC OPERATED