카테고리

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DONG-A VALVE

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  • 카테고리
  • 소재별 분류

소재별 분류

외형소재 (Valves Shell Material)

표준 재료 ASTM A2216(WCB) 외에, DAV Cast Steel 밸브는 아래에 표기된 소재에 따라 선택적으로 이용 가능합니다.


Working Temperature ℉(℃) Standard of Materials
Material Designation ASTM Spec. JIS
Over 23 (-5) up to 800 (427) Corbon Steel A216 WCB SCPH 2
850 (454) C - ½ Mo A217 WC1 SCPH 11
*1100 (593) 1 ¼ Cr - ½ Mo A217 WC6 SCPH 21
2 ¼ Cr - 1 Mo A217 WC9 SCPH 32
*1200 (650) 5 Cr - ½ Mo A217 C5 SCPH 61
9 Cr - 1 Mo A217 C12
Down to -50 (-46) Carbon Steel A352 LCB SCPL1
Carbon Steel A352 LCC
- 75 (- 59) C - ½ Mo A352 LC1 SCPL 11
- 100 (- 73) 2 ½ Ni A352 LC2 SCPL 21
- 150 (- 101) 3 ½ Ni A352 LC3 SCPL 31
*Over -320 (-196) up to 1500 (815) 18 Cr - 8 Ni (Co 0.03) A351 LC3 SCS 19
18 Cr - 8 Ni (Co 0.08) A351 CF8 SCS13
18 Cr - 8 Ni - 2 Mo(Co 0.03) A351 CF3M SCS16
18 Cr - 8 Ni - 2 Mo(Co 0.08) A351 CF8M SCS 14
18 Cr - 10 Ni - Cb A351 CF8C
300 (149) 19 Cr - 29 Ni A351 CN7M

- 밸브의 용접 배관에 대하여, 마감율이 1000°F에서 완료됩니다.

- A216,A217, A351,A352 의 압력온도율 상세사항에 대해서는 ASME/ANSI B16.34를 참고하세요.

ASTM A352의 최소 작업 온도는 ASME B31을 기준으로 합니다.




의장 소재(Valves trim material)


밸브 의장 (Vlave trim)


DESCRIPTION Gate. Valve Globe Valve Check Valve
Body seat surface ○ ○ ○
Disc seat surface ○ ○ ◎
Stem(Hinge Pin) ○ ○ -
Bonnet bush(Baclseat) ○ ○ -
Others Small internal parts Small internal parts Small internal parts
Specified by API 600/BS 1414 BS 1873 BS 1868

의장 소재(Trim material)

API 600, Table에 명시되어진 다음의 의장은 DAV표준을 따르거나 고객의 선택사항으로 합니다.


Trim No.
Symbol		 Nominal trim Body Seat surface Disc Seat surface Stem(hinge pin)
and bonnet bush
01 F6 13Cr 13Cr 13Cr
02 304 18Cr - 8Ni 18Cr - 8Ni 18Cr - 8Ni Available
optionally
05 Hardfaced(HF) Stellite#6 Stellite#6 13Cr
08 F6 & HF Stellite#6 13Cr 13Cr
09 Monel Ni- Cu Alloy Ni- Cu Alloy Ni- Cu Alloy Available
optionally
10 316 18Cr - 10Ni - 2Mo 18Cr - 10Ni - 2Mo 18Cr - 10Ni - 2Mo
11 Monel & HF Stellite#6 Ni- Cu Alloy Ni- Cu Alloy
12 316 & HF Stellite#6 18Cr - 10Ni - 2Mo 18Cr - 10Ni - 2Mo
13 Alloy20 19Cr - 29Ni 19Cr - 29Ni 19Cr - 29Ni
14 Alloy20 & HF Stellite#6 19Cr - 29Ni 19Cr - 29Ni

일반 명세 및 표준(General specificaion and standards)


VALVE TYPE GATE GLOBE CHECK
Shell wall thickness API 600 API 600 API 600
General valve design specifications BS 1414 BS 1873 BS 1868
Pressure-Temperature ratings ASME/ANSI B16.34
Face to face or end to end dimensions ASME B16.10
End flange dimensions Gasket contact facing Size 2~20", 24" ASME/ANSI B16.5
22" MSS SP - 44
22" and larger ASME B16.47 Ser A (MSS SP-44) or B (API 605)
Finishes for contact face of RF ASME/ANSI B16.5
Buttwelding end dimensions ASME B16.25
Inside diameter of flanged end minimum ASME/ANSI B16.34
Bolt and nut, thread ASME/ANSI B1.1, B18.2.1, B18.2.2
Material of shell, trim, bolt, nut, and others API 600, ASTM Respective specification
Marking system MSS SP - 25
Test and Inspecton Chemical composition analysis Relevant ASTM
Mechanical property test Relevant ASTM/ASTM A370
Pressure test API 598, BS 5146 and ASME/ANSI B16.34
Radiographic inspection ASME/ANSI B16.34, ASTM E142/E94
Wet magnetic particle inspection ASME/ANSI B16.34, ASTM E709/A275
Liquid penetrant inspection ASME/ANSI B16.34, ASTM E165
Low temperature impact test ASTM A352/E23
Dimensional inspection Relevant valve standards
Visual inspection MSS SP - 55

Nace valves

시큼한 가스나 탄화수소액을 포함한 수소 황화물을 처리하기 위하여, 동아밸브는 NACE MR-01-75 기준에 따른
열처리 및 강도를 가지고 있는 재료로 만들어진 NACE 밸브를 제공합니다.

동아밸브의 NACE밸브는 고객의 주문에 의해서만 생산합니다.


VALVE PARTS ASTM SPECIFICATION NACE HARDNESS API 600 HARDNESS
Body / bonnet A216 WCB Max. HRC 22
HB 237		 ㅡ
Disc A216 WCB or AISI Type 410 ㅡ
Disc seat surface 13Cr deposit or AISI Type 410 Min. 300 HB
Body seat ring A105 or AISI Type 410 ㅡ
Body seat ring surface Hardface ㅡ ㅡ
Stem AISI Type 410 Max. HRC 22
HB 237		 200~275 HB
Bonnet bush Min. 250 HB
Packing gland ㅡ
Lantern ring ㅡ
Bonnent bolts A193 B7 ㅡ ㅡ
A193 B7M Max. HRC 22 (HB 237) ㅡ
Bonnet nuts A194 2H ㅡ ㅡ
A194 2M Max. HRC 22 (HB 237) ㅡ