InterApp不銹鋼蝶閥DESPONIA系列蝶閥其密封形式多采用密封結構，密封材料為橡膠、聚四氟乙烯等。由于結構特征的限制，不適應耐高溫、高壓及耐腐蝕、抗磨損等行業，在石油、化工、冶金、水電、制藥、食品等許多領域中得到極為廣泛地應用InterApp stainless steel butterfly valve DESPONIA series butterfly valve mostly adopts sealing structure, and the sealing material is rubber, PTFE, etc. Due to the limitation of structural characteristics, it is not suitable for industries such as high temperature, high pressure, corrosion resistance, and wear resistance. It is widely used in many fields such as petroleum, chemical, metallurgy, hydropower, pharmaceutical, food, etc.
Type code
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Type
D1
Wafer
Sizes 1“-40“
D3
Lug body
Sizes 1-24“
D4
U-section body
Sizes 6“-64“
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Nominal diameter
0025-1600 mm
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Working pressure
0
2,5 bar (36 psi)
1
6 bar (87 psi)
*
10/16bar (145/232 psi), see table below
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Rating
**
ANSI 150, PN6/10/16 see table below. Other ratings on request
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Body
1AE
Cast iron EN-GJL-250, Polyurethan coated 70μm
< 284°F
Sizes 18“-56“
2AR
Ductile iron EN-GJS-400-15, Epoxy (Resicoat®) coated 200μm
< 230°F 1)
Sizes 1“-16“
2AE
Ductile iron EN-GJS-400-15, Polyurethan coated 70μm
< 284°F
Sizes 18“-64“
2AN
Ductile iron EN-GJS-400-15, Polyurethan coated 250μm
< 284°F
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Shaft
4A
Stainless steel 1.4021, AISI420
4L
Stainless steel 1.4542 / 17-4PH
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Disc
2AR
Ductile iron EN-GJS-400-15, Rilsan coated 250μ
< 194°F
Sizes 1“-28“
2AE
Ductile iron EN-GJS-400-15, Polyurethan coated 70μ
< 248°F
Sizes 32“-64“
2AC
Ductile iron EN-GJS-400-15, Chrome coated
Sizes 1“-24“
2AH
Ductile iron EN-GJS-400-15, Halar coated min.600μ
< 158°F
3OD
Carbon steel 1.0552 / GS52.3, Ultralene Coating ? coated < 176°F, pmax. 10 ≤ 12“ / 6 bar > 32“ Sizes 3“-12“, 32“-56“
4C0
Stainless steel 1.4408 ≈ CF8M
4CP
Stainless steel 1.4408 ≈ CF8M polished
Sizes 1“-24“
4CQ
Stainless steel 1.4408, PEEK coated min. 400μ
< 392°F
4S0
Super austenitic steel 1.4588
5C0
Alubronze ASTM B148 C95800 / G-Cu Al 10 Ni
7H0
Hastelloy ASTM A494 CW-12MW
≥ Sizes 18“ on request
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Liner
E
EPDM
< 203°F
pmax Sizes 1“-48“ = 232 psi, Sizes 56“-64“ = 145 psi
EE
EPDM FDA, DVGW, ACS, WRAS, EN681-1 < 176°F
pmax Sizes 1“-48“ = 232 psi, Sizes 56“-64“ = 145 psi
EC
EPDM High Temperature
< 266°F
pmax Sizes 1“-48“ = 232 psi, Sizes 56“-64“ = 145 psi
N
Nitril (NBR)
< 212°F
pmax Sizes 1“-12“ = 232 psi, Sizes 14“-64“ = 145 psi
H
CSM (Hypalon)
< 257°F
pmax Sizes 1“-12“ = 232 psi, Sizes 14“-64“ = 145 psi
V
FPM (Viton)
< 392°F
pmax Sizes 1“-12“ = 232 psi, Sizes 14“-64“ = 145 psi
