Butterfly Valve

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Concentric

BA Series – Double Flange

Bonded Liner, Double Flange

BA/S59 BAL/S68

Double flanged type butterfly valve with centric disc and bonded liner. 100%

 

bi-directional bubble tight shut off.

 

Applicable for all kinds of industries especially:

  • shipbuilding
  • offshore
  • petrochemical
  • heavy industry
  • water treatment
  • civil engineering

 

General product specifications

 

  • Overall design generally in accordance to BS EN-593
  • Face to face dimension in accordance to EN558 table 1, series 13 (except DN2000)
  • On request available as eccentric type BAL/S68 or centric type BAL,
  • with face to face dimensions according to EN558 table1, series 14
  • Top flange and shaft end in accordance to ISO-5211
  • Working pressure from 0.1 bar absolute up to 16 bar (test pressure 17.6 bar)
  • Working pressure up to 25 bar (test pressure 27.5 bar) on request
  • Suitable as end of line service valve
  • DN50 – DN2000
  • Mounting between flanges to DIN PN10, DIN PN16 or ASME class 150
  • Other executions on request

 

 

 

 

 

Download Datasheet

MSJ Series – Wafer

Bonded Liner, Semi Lug

Wafer type butterfly valve, semi lug, with centric disc and bonded liner.

100% bi-directional bubble tight shut off.

 

General product specifications

 

  • Overall design generally in accordance to BS EN-593
  • Face to face dimension in accordance to EN558 table 1, series 20 (series 16 from DN700 and up)
  • Top flange and shaft end in accordance to ISO-5211
  • Working pressure from 0.1 bar absolute up to 16 bar (test pressure 17.6 bar)
  • Working pressure up to 25 bar (test pressure 27.5 bar) on request
  • Suitable as end of line service valve
  • DN50 – DN1200
  • Mounting between flanges to DIN PN10, DIN PN16 or ASME class 150
  • Other executions on request

 

 

Download Datasheet

LT Series – Lug

Bonded liner, Full Lug

LT/S55

Full wafer lug type butterfly valve with centric disc and bonded liner.

100% bi-directional bubble tight shut off.

 

General product specifications

 

  • Overall design generally in accordance to BS EN-593
  • Face to face dimension in accordance to EN558 table 1, series 20 (series 16 from DN700 and up)
  • Top flange and shaft end in accordance to ISO-5211
  • Working pressure from 0.1 bar absolute up to 16 bar (test pressure 17.6 bar)
  • Working pressure up to 25 bar (test pressure 27.5 bar) on request
  • Suitable as end of line service valve
  • DN50 – DN1200
  • Mounting between flanges to DIN PN10, DIN PN16 or ASME class 150
  • Other executions on request

 

Download Datasheet

Mono Series – Mono Flange

Bonded liner, Mono Flange

MONO/S51 MONO/S61

Mono flange type butterfly valve with centric disc and bonded liner.

100% bi-directional bubble tight shut off.

 

General product specifications

 

  • Overall design generally in accordance to BS EN-593
  • Face to face dimension in accordance to EN558 table 1, series 20 (series 16 from DN700 and up)
  • On request available with face to face dimensions in acc. to EN558 table 1,
  • series 16 as eccentric type MONO/S61
  • Top flange and shaft end in accordance to ISO-5211
  • Working pressure from 0.1 bar absolute up to 16 bar (test pressure 17.6 bar)
  • Working pressure up to 25 bar (test pressure 27.5 bar) on request
  • Suitable as end of line service valve
  • DN50 – DN1000
  • Mounting between flanges to DIN PN10, DIN PN16 or ASME class 150
  • Other executions on request

 

Download Datasheet

Eccentric & Double Eccentric

NSJ Series – Replaceable Seat ring

Replaceable seat ring, Semi Lug, Full Lug, Double Flange

NSJ series

 

The NSJ has an eccentric design.

The dex series have a double eccentric design. Seat ring exchange

is extremely simple and does not require removal of the actuator.

100% tight shut off up to 16 bar with the preferred direction of flow.

The preferred direction of flow is indicated on the body.

Applicable for all kinds of industries but specially designed as cargo or ballast valve.

 

General product specifications

 

  • Overall design generally in accordance to BS EN-593
  • Face to face dimension in accordance to manufacturer standard
  • Actuator flange and shaft end in accordance to ISO-5211
  • Working pressure from 0.1 bar absolute up to 25 bar (body test 32 bar)
  • DN100 – DN1200
  • Flange connection to JIS 5K, 10K, 16K, DIN PN10, PN16, PN25 or ASME class 150
  • Other executions on request

 

 

 

 

Download Datasheet

Double Flange (ESJ)

ESJ

Duvalco double flange eccentric type butterfly valve are designed to the requirements of BS EN 593 and are of eccentric design which gives positive leakproof shut off on rubber to metal faces.

 

General product specifications

 

  • Overall design generally in accordance to BS EN 593
  • Face to face generally in accordance to EN 558 Series 13 (BS), Series 14 (DIN F4).
  • Flanged Connections to PN10, PN16, ANSI Class 150
  • Working Pressure Standard – up to PN16
  • PN25 Upon request
  • DN100-DN2000
  • Other type of connection on request
  • Bigger size range on request. (DN2100-DN3000)

 

Download Datasheet

High Performance

HP 7400

High Performance Double Offset 

Duvalco HP7400 high performance is of a double offset type valve. Double offset provides excellent controlling, bubble tight shut off, greater seat life     and smooth operation. 

 

General product specifications

 

  • Overall design generally in accordance to API 609 Cat B/BS 5155 or API607 Fire Safe type 
  • Face to face dimension in accordance to API 609 / BS5155/BSEN 558-1 / ISO 5752
  • Top flange and shaft end in accordance to ISO-5211
  • Hydro testing on body up to 30 bar 
  • Hydro testing on seat up to 20 bar 
  • DN50 – DN2000
  • Mounting between flanges to  ASME class 150 / Class 300 
  • Other executions on request

 

Download Datasheet

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