Super Duplex/Duplex Fittings & Super Duplex/Duplex Valves

Duplex Valves in 2205 and UNS S31803

Super Duplex Valves in S32760 , S32750 (2507)

FAV is the manufacturer of Super Duplex/Duplex Fittings & Super Duplex/Duplex Valves

Super Duplex/Duplex Fittings & Super Duplex/Duplex Valves are becoming more common. They are being offered by all the major stainless steel mills for a number of reasons:

  1. Higher strength leading to weight saving
  2. Greater corrosion resistance particularly stress corrosion cracking
  3. Better price stability
  4. Lower price

Properties

The combination of chromium, molybdenum and nitrogen convey the good resistance of 2205 to chloride pitting and crevice corrosion. This resistance is extremely important for services such as marine environments, brackish water, bleaching operations, closed loop water systems and some food processing applications. The high chromium, molybdenum and nitrogen contents of 2205 provide corrosion resistance superior to common stainless steels, such as, 316L and 317L in most environments.

Advantages

The advantage of a duplex structure is that it combines the favorable qualities of a ferritic alloy (stress corrosion cracking resistance and high strength) with those of an austenitic alloy (ease of fabrication and corrosion resistance).

2205 duplex stainless steel is a cost effective solution for many applications where the 300 series stainless steels are susceptible to chloride stress corrosion cracking. Stress corrosion cracking occurs when stainless steels are subjected to tensile stress, while in contact with solutions containing chlorides. Increasing temperatures also increase the susceptibility of stainless steels to stress corrosion cracking.

What are the characteristics of Super Duplex/Duplex Fittings & Valves?

  1. High resistance to chloride stress corrosion cracking
  2. Resistance to chloride pitting and crevice corrosion
  3. Good general corrosion resistance
  4. Good sulphide stress corrosion resistance
  5. High Strength
  6. Good weldability and workability

In what applications are Super Duplex/Duplex Valves & Fittings used?

  1. Chemical process vessels, piping and heat exchangers
  2. Pulp mill digesters, bleach washers, chip pre-steaming vessels
  3. Food processing equipment
  4. Oil field piping and heat exchangers
  5. Flue gas desulfurization equipment.
Duplex 2205 Fittings
Duplex Plug
Duplex Fitting
Duplex Elbow Union
Duplex Valve
Duplex Needle Valve
Duplex 2205 Valves
Duplex Ball Valve
Duplex Valves & fittings
Duplex Pipe Fitting
Duplex Fittings
Duplex Union
Super Duplex 2507 Fitting
Super Duplex Hex Nipple
Super Duplex 32750 Fittings
Super Duplex Male Connector with Tube
Super Duplex 2507 Valves
Super Duplex Ball Valve with Tube
Super Duplex 2507 Fittings
Super Duplex Union
Super Duplex 2507 Fitting
Super Duplex Male Connector
Duplex Fitting
Super Duplex Elbow
Super Duplex 2507 Ball Valve
Super Duplex Ball Valve
Duplex 2205 & Super Duplex 32750

FAV is the Manufacturer of Duplex 2205 & Super Duplex 32750 Valves & Fitting, Super Duplex Compression Tube Fittings and Pipe Fittings.

Duplex stainless steels are becoming more common. They are being offered by all the major stainless steel mills for a number of reasons:

  1. Higher strength leading to weight saving
  2. Greater corrosion resistance particularly stress corrosion cracking
  3. Better price stability
  4. Lower price

 

Properties

The combination of chromium, molybdenum and nitrogen convey the good resistance of 2205 to chloride pitting and crevice corrosion. This resistance is extremely important for services such as marine environments, brackish water, bleaching operations, closed loop water systems and some food processing applications. The high chromium, molybdenum and nitrogen contents of 2205 provide corrosion resistance superior to common stainless steels, such as, 316L and 317L in most environments.

 

Advantages

The advantage of a Duplex & Super Duplex Valves & Fitting, is that it combines the favourable qualities of a ferritic alloy (stress corrosion cracking resistance and high strength) with those of an austenitic alloy (ease of fabrication and corrosion resistance).

2205 duplex stainless steel is a cost effective solution for many applications where the 300 series stainless steels are susceptible to chloride stress corrosion cracking. Stress corrosion cracking occurs when stainless steels are subjected to tensile stress, while in contact with solutions containing chlorides. Increasing temperatures also increase the susceptibility of stainless steels to stress corrosion cracking.

Duplex Male Connector
Super Duplex Male Connector
Duplex Male Bulkhead Connector
Super Duplex Male Bulkhead Connector
Duplex Straight Union
Super Duplex Straight Union
Duplex Female Connector
Super Duplex Female Connector
Duplex Male Connector Buttweld BW
Super Duplex Male Connector Buttweld BW
Duplex Elbow
Super Duplex Elbow
Duplex Male Elbow
Super Duplex Male Elbow
Duplex Tee Union
Super Duplex Tee Union
Duplex Male Run Tee
Super Duplex Male Run Tee
Duplex Bulkhead Union
Super Duplex Bulkhead Union
Duplex Nut
Super Duplex Nut
Duplex Female Elbow
Super Duplex Female Elbow
Duplex Female Branch Tee
Super Duplex Female Branch Tee
Duplex Female Run Tee
Super Duplex Female Run Tee
Duplex Female Bulkhead Connector
Super Duplex Female Bulkhead Connector
Duplex Double Ferrule
Super Duplex Double Ferrule
Duplex 45 degree Elbow Union
Super Duplex 45 degree Elbow Union
Duplex Male Branch Tee
Super Duplex Male Branch Tee
Duplex Cross
Super Duplex Cross
Duplex Cap
Super Duplex Cap
Duplex Tube Plug
Super Duplex Tube Plug
Duplex Block Elbow
Super Duplex Block Elbow
Duplex Block Cross
Super Duplex Block Cross
Duplex Block Tee Union
Super Duplex Block Tee Union
Duplex Block Male Run Tee
Super Duplex Block Male Run Tee
Duplex Block Male Branch Tee
Super Duplex Block Male Branch Tee
Duplex Hex Adapter
Super Duplex Hex Adapter
Duplex Hex Reducing Bushing
Super Duplex Hex Reducing Bushing
Duplex Hex Coupling
Super Duplex Hex Coupling
Duplex Hex Adapter BSP
Super Duplex Hex Adapter BSP
Duplex Half Coupling
Super Duplex Half Coupling
Duplex Hex Reducing Coupling
Super Duplex Hex Reducing Coupling
Duplex Union Ball Joint
Super Duplex Union Ball Joint
Duplex Pipe Elbow
Super Duplex Pipe Elbow
Duplex Pipe Elbow Male X Female
Super Duplex Pipe Elbow Male X Female
Duplex Pipe Male Elbow
Super Duplex Pipe Male Elbow
Duplex Pipe 45 Deg Elbow Male X Male
Super Duplex Pipe 45 Deg Elbow Male X Male
Duplex Pipe 45 Deg Elbow Male X Female
Super Duplex Pipe 45 Deg Elbow Male X Female
Duplex Pipe 45 Deg Elbow Male X Female
Super Duplex Pipe 45 Deg Elbow Male X Female
Duplex Pipe Street Tee
Super Duplex Pipe Street Tee
Duplex Pipe Male Tee
Super Duplex Pipe Male Tee
Duplex Pipe Tee
Super Duplex Pipe Tee
Duplex Block Male Elbow
Super Duplex Block Male Elbow
Duplex Hex Plug
Super Duplex Hex Plug
Duplex Block Male Tee
Super Duplex Block Male Tee
Duplex Hex Nipple
Super Duplex Hex Nipple
Duplex Ball Valve female
Super Duplex Ball Valve Female
Duplex Ball Valve OD
Super Duplex Ball Valve OD
Duplex Needle Valve male x female
Super Duplex Needle Valve male x female
Duplex Needle Valve Male
Super Duplex Needle Valve Male
Duplex Needle Valve OD
Super Duplex Needle Valve OD
Duplex Needle Valve female
Super Duplex Needle Valve female
Duplex Manifold Valve Male x Female
Super Duplex Manifold Valve Male x Female
Duplex Manifold Valve Female x Female
Super Duplex Manifold Valve Female x Female
Duplex Manifold Valve Male x Male
Super Duplex Manifold Valve Male x Male
Duplex Check Valve female
Super Duplex Check Valve female
Duplex Check Valve MxF
Super Duplex Check Valve MxF