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Duplex Discharge Valves

Duplex stainless steel is a steel which has half of ferrite phase and half of austenitic phase in its quenching structure,and generally the minimum phase content must be up to 30%.

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Duplex Discharge Valves

Material Features Of Duplex Discharge Valves

  • Duplex stainless steels containing molybdenum have good performance of resistance to chloride stress corrosion under low stress.

  • Duplex stainless steels containing molybdenum have good corrosion resistance.

  • It has good resistance to corrosion fatigue and wears and corrosion.

  • Good comprehensive mechanical properties.


Good weld-ability, the low tendency of hot cracking. Generally, it doesn't need preheating before welding and doesn't need heat treatment after welding. It can do dissimilar welding with 18-8 type austenitic stainless steel or carbon steel.

Compared with austenitic stainless steel, it has higher thermal conductivity and a low linear expansion coefficient. It is suitable for the lining of equipment and the production of composite plates



Weidouli Duplex Discharge Valves Type

Downward discharge valves


Design Features

Desgin :HG5-89-1 &HG-16-79  

Flanged Ends: ASME B16.5 RF

Test:ASME 598


Parts & Material


No.

Part Name

Material

1

Disc

Duplex

2

Disc bonnet

Duplex

3

Seat

Duplex

4

Gasket

Duplex+Graphite

5

Stem

Duplex

6

Body

Duplex

7

Packing

Graphite

8

Gland bushing

Duplex



Duplex Discharge Valves



Weidouli also can offer upward discharge valves.

Related Discharge Valves
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0086-577-86921659
Add:
No.20, Xingyu Road, Airport Industrial Zone, Wenzhou city, 325024 P.R.
No.20, Xingyu Road, Airport Industrial Zone, Wenzhou city, 325024 P.R.
sale@weidouli.com
0086-577-86921659