DIRCHSEN APS - VALVES AND PROCESSING EQUIPMENT
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GAtevalve replacement type quadax® by Müller COAX
unique four-offset design butterfly valve

Müller COAX  presentation
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Over 50 years of müller co-ax. A company having grown from the humblest of beginnings into the epitome of valve technology within the industry.We are synonymous for innovation and individuality, for confidence and quality, for experience and reliability in valve technology. This is been the case since the beginning of our dynamic development and it will continue to stay that way.
More than 50 years of experience also brings responsibility with it, however: to our company, to what we have achieved with our employees and of course to our customers.
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The quadax valve is successfully installed in the following industries: Oil and Gas Processing, Offshore Platforms, Refineries, Hydrocarbon Storage and Transportation, Liquid Natural Gas (LNG) Storage and Transportation, Chemical and Petrochemical Plants, Power Plants, District Heating, Pulp and Paper, Steel Mills, Sugar Mills. Furthermore, quadax has a long-lasting experience of valves installed on services with the following media: Steam (Saturated and Superheated), Geothermal Steam, Hydrocarbons, Hydrogen, Oxygen, Cryogenic Fluids, Hot Gases, Sulphur (Tail Gas), Chemical Solvents, Chlorinated Solvents and Flare Gas.

GATEVALVE REPLACEMENT QUADAX® METAL SEALED BUTTERFLY VALVE UNIQUE FOUR-OFFSET BUTTERFLY VALVE​
The sealing element does not touch the body seat until it is completely sealed. It doesn’t drag (wear across the body seat).
HIGHER CV
Because the pipeline is round, and the seat area flow path is round, there is no flow restrictions as seen in triple offset valves.
LOW TORQUE
The quadax® patented fourth offset design incorporates a disc seal and body seat that are both perfectly round. There is no need for seal ring deformation or rubbing. Because of this unique feature, the required torque is much less; lower torque, smaller actuator, more economical automation.
MORE SEAL OPTIONS
The round sealing components of the quadax® allow us to offer additional sealing options. The quadax® can use both laminated seals and O-Ring Seals. These O-Ring Seals are unique to quadax® patented four-offset design.
  • Zero leakage, Bi-Directional
  • Superior cryogenic performance
  • Zero rubbing / Zero Friction

TRIPLE OFFSET COMPARING QUADRUPLE OFFSET
Triple offset butterfly valves have been around for years. With definite advantages over rubber lined and double offset valves, they are currently widely used in industry. Offset 1: The valve shaft is offset from the centerline of the valve seat.Offset 2: The valve shaft is offset from the centerline of the pipe. Offset 3: The disc seal shape is manufactured to the shape of a slice from a round cone whose axis is offset from the centerline of the pipe. The shape of the slice is an ellipse.
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THE FOURTH OFFSET

​quadax® utilizes a patented seal design that results in a sealing surface that is ROUND. The benefits of a round seal are many, giving us significant advantages over triple offset valves. Offset 4: The cone shape is stretched to an ellipse. The disc seal made to the shape of a slice from this elliptical cone, results in a seal that is perfectly round. The cone shape is stretched to an ellipse. The disc seal made to the shape of a slice from this elliptical cone, results in a seal that is perfectly round.
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Technical specification​
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Size range:
​Body mat.:
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Seat
Seal mat.:
Disc mat.:
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Connection:
​
Pres. range.:
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Temp. range:
Operation.:


DN 80-1000 mm...larger on request up to 1600 mm
​carbon steel, stainless steel, special material (duplex, inconell, bronze)
Inconell, others on request
graphite / stainless steel, inconell, stainless steel, PTFE
​Carbon steel, stainless steel, special material (duplex, inconell, bronze)
Double flanged PN 10 / 16 / 25 / 40 / 63 / 100 / 160 ANSI 150 / 300 / 600 / 900
​PN 0-160 bar (standard 52 bar in both directions special 100 bar in both directions)
Standard from -10 °C to +450°C  - special mat.: -270 °C to +800 °C
Manuel via lever- gearbox-chain drive, automatic via Pneumatic, hydraulic & electric


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    Quadax GATEVALVE REPLACEMENT ​ butterly - request for further information

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Location

Company Address

Dirchsen Process Equipment Aps
Lejrvej 25
3500 Vaerløse
Tlf.: +45 7070 2823
Mail.: info(a)dirchsen.com

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