quadax butterfly valves have no visible leakage when tested at high pressure with water and low pressure with air, according to international test standards.
quadax valves inc., based in Bristol, Pennsylvania, is a subsidiary of co-ax valves inc., and is part of the müller co-ax ag group, a world renowned valve manufacturer since 1960.
For over 50 years, müller co-ax ag has been an innovative leader in the unique design and manufacture of valve technology for businesses worldwide.
In 2009, the müller co-ax group extended their product range with the quadax® butterfly valve series. With this unique four-offset design and new manufacturing technology, along with an extensive U.S. inventory, quadax valves inc. is able to provide butterfly valves that meet the highest tightness requirements under extreme temperature conditions.
With the new valve series quadax®, the müller co-ax group is expanding the range of products of valves, especially with larger sizes. The unique design, a quadruple (four offset) design and a new manufacturing technology, quadax® meets the highest tightness requirements, even under extreme temperature conditions, ranging from -454°F to +1472°F.
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.
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.
The sealing element does not touch the body seat until it is completely sealed. It doesn’t drag (wear across the body seat).
Because the pipeline is round, and the seat area flow path is round, there is no flow restrictions as seen in triple offset valves.
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.
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.
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.
* solar, geothermal and hydro
All of our data sheets, operating instructions, and certificates are available in PDF-Format. You need the Adobe Reader in order to display them or print them out. If you do not yet have the Adobe Reader installed on your computer, you can download it from www.adobe.com
Data Sheet Lug Style Data Sheet Double Flange Style Data Sheet Gate Valve Replacement Style Data Sheet Buttweld Style
Coating Specifications Declaration of Conformity BAM Certificate Firesafe Certificate GOST R Certificate RTN Certificate ISO 9001:2015 Certificate
Operating Instructions with Actuator Operating Instructions with Hand Drive Assembly Instructions
quadax valves inc. Return Goods Procedure and Policy
quadax valves inc. Cancellation Policy
Our Sales Terms and Conditions apply to all sales by quadax valves inc. to the purchaser of any and all products manufactured and/or distributed by quadax and to all quotations and offers made by and purchase orders accepted by quadax pursuant to an Order Acknowledgement.
quadax valves inc. Sales Terms and Conditions
The quadax valves inc. Purchasing Terms and Conditions shall apply to all purchase orders to our vendors for all products or services.
At quadax, we believe every individual’s life and career experience is unique and allows us to make a more positive impact on the industries and clients we serve. Each person at quadax touches and contributes to the success of our business. That’s why, as one of the global leaders in the butterfly valve industry, quadax is committed to hiring highly qualified candidates for all areas of our business. But our goal isn’t just to hire highly qualified people. We are dedicated to retaining and inspiring our dedicated team of creative and talented individuals.
As you view this site today we may not have any immediate openings in your area of preference. We would like to encourage you to still register your interest in joining the quadax team by submitting your résumé and cover letter for future consideration to hr@quadaxvalves.com.
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