DKD

GENERAL INFORMATION

Butterfly Valve metallic seated DKD

Metallically sealing Valves are produced in addition to the soft sealing Valves (elastomer lined). These show a nominal width up to 2% of leakage (surface equivalent) according to their construction. These Valves are used preferentially for high temperatures. Special equipment is available for temperatures up to 1100°C. Often the Valves are used as well as a silo lock for bulk material, particularly if it is necessary to avoid a contamination of the product with the elastic wear of the seal.

  • depending on the construction applicable for temperatures till 500 °C
  • sweeping or slinging Valves have a leakage from 0.5 to 2 %
  • Double-eccentric Valves available with a density according to DIN 12266 leakage rate B
  • a generally higher lifetime than soft sealing Valves
  • within a higher nominal size considerably cheaper as soft sealing Valves
  • in centric execution low torque (depending on the product)
  • also available in EX version for the application in zone 0 / 20, according to type test BVS19AtexH036X
  • Shafts and armature head qualified for the construction of the different drive possibilities, cutting sites
    after DIN EN ISO 5211

Body
Silumin, steel, stainless steel, HII, special materials
Valve disc
Steel, stainless steel, HII, special materials
Shafts
stainless steel, special materials
Shaft seal
O-rings, stuffing box

1. Body
2. Valve Disc
3. Shrivelled sealing ring
4. Shaft
5. Retaining ring
6. O-Rings
7. Connection flange
8. Bearing pin
9. Seal
9a. O-Ring
10. Plug screw
10a. End plate

DKD 103

Butterfly Valve, metallic seated, full flange design – for use
in the control range up to 280°C.

  • Range of Nominal Widths: DN 50 – DN 1200
  • Operating Temperature: – 40°C to + 280°C*
  • Sealing ring Steel / Special Steel
  • Leakage: from about 0,5 % to 2 % – surface equivalent

DKD 110

Absperrklappe, Butterfly Valve, metallic seated, wafer design – shut off and
control valve up to 280°C.

  • Range of Nominal Widths: DN 50 – DN 1200
  • Operating Temperature: – 40°C to + 280°C*
  • Sealing ring Steel / Special Steel
  • Leakage: from about 0,5 % to 2 % – surface equivalent

DKD/DKH

Butterfly Valve, metallic seated, wafer design – shut off and
control valve for the high temperature range.

  • Range of Nominal Widths: DN 50 – DN 1200
  • Operating Temperature: – 40°C to + 280°C*
  • Sealing ring Steel / Special Steel
  • Leakage: from about 0,5 % to 2 % – surface equivalent

DKD-AK

Butterfly Valve, metallic seated, wafer design – shut off and
control valve for the high temperature range.

  • Range of Nominal Widths: DN 50 – DN 3000
  • Operating Temperature: – 40°C to + 280°C*
  • Sealing ring Steel / Special Steel
  • Leakage: from about 0,5 % to 2 % – surface equivalent

DKD-KL

Butterfly Valve, metallic seated, Clamp ring connection – shut off and
control valve for air or bulk goods.

  • Range of Nominal Widths: DN 150 – DN 250
  • Operating Temperature: – 40°C to + 280°C*
  • Sealing ring Steel / Special Steel
  • Leakage: from about 0,5 % to 2 % – surface equivalent

* Operational limitations depend on nominal width, temperature and composite materials. Crucial are the parameters set in the confirmation.

EXHIBITION DATES


SOLIDS EASYFAIRS Dortmund
16. – 17.06.2021

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