DUPLEX STAINLESS STEEL | SPECIAL ALLOY GLOBE VALVES
Size Range: |
DN15 - DN600 / 1/2" - 24" |
Design Standards: |
MSS-SP80 / BS5154/BS1873 /ASME B16.34 |
Pressure Ratings: |
Class 150LB, Class 300LB,CLASS600LB Class900,class1500, PN10~PN250 |
End Connections: |
Flanged ASME B16.5, EN1092-1 (Flat Face FF or Raised Face flange (RF) ,
RING TYPE JOINT FLANGE(RTJ)) |
Face to Face: |
ASME B16.10 ,ASME B16.47 , EN558-1 |
Globe valve Type |
Through way type , Y type Globe valve, and Angle Type globe valve,
OS&Y, Rising Stem . |
DISC |
Plug type disc, regulating disc(throttling disc) ,regular disc, |
Seat |
Integral Seat , Optional Extras Renewable Seats 2"/ DN50 and above |
Operated type |
:Hand wheel , Gear Operated,
Pneumatic Operated,
Electric Operated,
Impact Hand wheel Operated
|
Pressure Testing: |
API 598 or BS EN 12266-1:2003,DIN3230 |
Optional Extras: |
Locking Devices
Open and Close Indicator
Bare stem with ISO5210 top mounting pad for actuator etc.
|
Stainless Steel Globe valves :
A351 CF8(F304),CF8M(F316),CF3(F304L),CF3M(F316L),CF8C(F347),F321,F321H,CK20
Alloy Steel Globe valves :
Monel 400, monel k500, alloy20,904L,CN7M, Inconel, Hastelloy® B&C
Duplex Stainless Steel Globe valves:
A351 CN7M(B473), CD4MCu(F50),CK3MCuN(F44),CG8M,A890-1A,4A,5A,6A, A182 F44,F50,F51,F53,F310
Bronze Globe valves , Nickel aluminum bronze(NAB) Globe valves , Gunmeta Globe valves:
B148 C95500,C95800,C95400,B62, C83600,B61,B62 C92200, B150 C63200
DIN Stainless Stee Globe valves: 1.4408, 1.4308
Duplex stainless steel globe valve - Alloy Steel globe valves manufacturer & supplier: SEDELON VALVE CO.,LTD.
Nickel Alloy / Monel®Globe valve
Monels® are a Nickel alloy material with addition of:
Copper (Cu)
Silicon (Si)
Manganese
These materials are also known as Monel, Alloy 400 and Alloy K500
Common Material Specifications
Ni Cu30 Fe3.5 Si1.5(+) (Monel 400)
A494 M-35-1 (UNS N24135) (Low Si –weldable)
A494 M-35-2 (UNS N04020)
BS3071: NA1
BS3071: NA3
OTHERS
Wrought equivalent Alloy 400 (UNS N04400)
Typical Properties
Tensile 430 N/mm2
Yield 170-205 N/mm2
Elongation 20-25%
Hardness HB 100-150
Density 8.8 g/cm3
Pressure temperature rating: B16.34 Group 3.4 15.9 bar class 150
Corrosion Properties
Good general corrosion for seawater service
Especially good for higher flow rates
Excellent trim material for NAB, gains cathodic protection with many alloys.
Not recommended for low velocities
Additional Uses & Comments
Variety of wrought/ bar specifications available, good for trim material. Excellent strength from K500
Used for oxygen service
Reasonable castabilty with suitable design and higher Si content
Weldable with lower Si content
Excellent for hydrofluoric & other acids (not nitric)
Cautions
Ease of manufacture: trade-off between castability and weldability
Pitting can be a problem at low velocities
Don’t use as trim for austenitic stainless
P/T rating class 300=600 psi CWP
Cost effectiveness need consideration
Alloy 20 / 904L GLOBE VALVES
Alloy 20 & 904L are special Stainless (Austenitic) :
|
|
Al20
|
904L
|
Chrome
|
(Cr) |
20%
|
20%
|
Nickel |
(Ni) |
25%
|
29%
|
Molybdenum |
(Mo) |
2% |
4.5% |
Copper
|
(Cu)
|
3% |
1.5% |
Columbium
|
(Cb) |
trace
|
- |
(=Niobium,Nb) |
|
|
|
These materials are also known as:
Alloy 20:UNS N08020, CN7M (N08007), URANUS B6M similar
904L: UNS N08904, URANUS B6
Typical Properties
Tensile 425 min N/mm2
Yield 170 min N/mm2
Elongation 35%
Hardness
Density
Corrosion Properties
Good for seawater service
Especially good for:
General corrosion
Erosion /corrosion
Stress corrosion cracking
Corrosion fatigue
Occasional pitting will occur
Poor fouling resistance
Additional Uses & Comments
Good for sulphuric acid + wide range of acids
Extra conditions re: NACE MR0175 (AOD must be used, restrictions on chemical analysis) 22HRC max
Insulate from Copper piping
Duplex Stainless Steel GLOBE VALVES
Duplex Stainless Steels are;
Duplex (Austenitic-Ferritic) or 22% Chrome St/St, also with
Nickel (Ni) 5%
Molybdenum (Mo) 3%
Sometimes Copper (Cu) 1%
Fe Cr22 Ni5 Mo3
UNS J92205
Also known as:
UNS S31803, SAF2205, Alloy 2205, DIN 1.4462
4A (ASTM 891)
Typical Properties
Tensile 620 min N/mm2
Yield 415 min N/mm2
Elongation 20%
Hardness 185 HB typ
Density 7.8 g/cm3
P/T ratings, typically B16.34 group 2.8 =20 bar class 150 (UNS S32570)
Corrosion Properties
Good for seawater service
Especially good for:
General corrosion
Erosion /corrosion
Stress corrosion cracking
Corrosion fatigue
Super Duplex Stainless Steels GLOBE VALVES
Super Duplex Stainless Steels are improved Duplex (Austenitic-Ferritic) St/St, typically:
Chrome (Cr) 25%
Nickel (Ni) 7%
Molybdenum (Mo) 3%
Sometimes Copper (Cu) 1% or Tungsten (W) 1%
Also known as:
Zeron 100 (UNS 32760), SAF 2507 UNS S32570, UNS J93380 (Cast Zeron
Other similar materials
UNS S32550 (Ferralium 255)
Cr26 Ni5 Mo3.5 Cu2 N
CD-4MCu
Cr25.5 Ni5.5 Mo2 Cu3 N
Several under brand names
Typical Properties
Tensile 700 min N/mm2
Yield 450 min N/mm2
Elongation 25%
Hardness 180-200 HB typ
Density 7.8 g/cm3
Corrosion Properties
Good for seawater service
Especially good for:
General corrosion
Erosion /corrosion
Chloride and Sulphide Stress corrosion cracking
NACE <HRC34
Corrosion fatigue
Poor fouling resistance
Additional Uses & Comments
Very high strength
Good high temperature rating but limited to 400 oC
P/T class 300=750 psi CWP
Inconel® /Incoloy® GLOBE VALVES
Inconel® are Nickel-Chrome-Iron Alloy’s and Incoloy® are Nickel-Crome-Molybdenum Alloy’s,
Nickel alloy:
|
|
825
|
625
|
Iron |
(Fe) |
31%
|
5% |
Chrome |
(Cr)
|
20%
|
21%
|
Nickel
|
(Ni)
|
42%
|
62% |
Molybdenum |
(Mo) |
2%
|
9% |
Copper |
(Cu) |
2% |
1.5% |
Columbium+Ta |
(Cb)
|
trace
|
3.7% |
These alloys are also known as:
Incoloy® 825: UNS N08825, similar to CU5MCuC
Inconel® 625: UNS N06625,CW-6M, CW-6MC, UNS N26625
Typical Properties
Tensile 520 495 min N/mm2
Yield 240 275 min N/mm2
Elongation 20% 25%
Density 8.1 -8.4 g/cm3
P/T rating sim. to B16.34 group 3.8 20 bar class 150
Corrosion Properties
825 Good
625 Outstanding
Corrosion fatigue, crevice corrosion
Both poor re:fouling
Additional Uses & Comments
Alloy 825
specially resistant to sulphuric and phosphoric acids
Alloy 625
good strength without relying on heat treatment
particularly good crevice corrosion resistance
outstanding combination of corrosion fatigue and crevice corrosion resistance
NACE MR01-75 35 HRC max acceptable
Haynes comment “generally superseded by the more capable Hastelloy® grades”
Hastelloy® B&C GLOBE VALVES
Hastelloy® B is a Nickel-molybdenum alloy and Hastelloy® C is a Nickel-chrome-molybdenum alloy.
Haynes Stellite alloys
Collection of Nickel alloys
B: B-2, B-3
C: C-22, C-276, C-2000
D,G,N,W & X
Cast grades
B2= N-7M (UNS N30007) sim. to N10665
C22=CX-2MW (UNS N26022) sim. To N06022
Material Specifications
B2= N-7M (UNS N30007)
Ni69% (bal), Mo 28%, Fe2%,Cr1%
C22=CX2MW (UNS N26022)
Ni56%(bal), Cr22%,Mo13%,Fe3%,Nb3%
Typical Properties
|
B2 |
C22
|
Tensile
|
525 |
550 min N/mm2 |
Yield |
275
|
240 min N/mm2 |
Elongation |
20%
|
30% |
Density
|
8.1 |
8.7 g/cm3 |
P/T rating Similar to B16.34 group 3.7 or 3.8 (20 bar for class 150) |
|
|
Corrosion Properties
B2 Good
C22 Outstanding
Corrosion fatigue, crevice corrosion
Both poor re:fouling
Additional Uses & Comments
Resistant to a wide range of acids, often at high temperatures
Not generally known for seawater use
Acceptable to NACE
Page keywords: duplex stainless steel GLOBE VALE,stainless GLOBE VALVE,alloy globe valves,Monel Globe valve,Alloy 20/904L GLOBE VALVES,Duplex Stainless Steel GLOBE VALVES,Inconel GLOBE VALVES,Hastelloy GLOBE VALVES, special alloy globe valves, stainless steel globe valve Manufacturer & supplier
|