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Duplex needle valve

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Duplex needle valve specification

sizes 1/4″ to 1″ (Female / Female BSP and BSPT), 3/8″ to 1″ (Female / Female NPT) and 1/4″ to 1/2″ (Male / Female BSPP).
Temperature range: -20°C to 230°C.
Operator Bar, hand operated.
Pressure rating: 6000 PSI.
Flow Rate .93, 2.34, 6.42, .70, 1.04, 3.62,.87 Cv
Applicable Standard
  • Design & Manufacture : BS 1868
  • Face to Face according to : ASME B16.10
  • Flange Dimensions as per: ASME B16.5
  • Pressure & Temperature : ASME B16.34
  • Test & Inspection accordance to : API 6D / API 598
  • Visual Inspection accordance to : MSS SP-55
  • Marking accordance to : MSS SP-25
Approvals
  • MSS SP-110
  • API-598
  • ANSI B1.20.1
  • ANSI B16.11
  • NACE Certified
  • ANSI B16.34
  • API 607 Fire Safe
Connection
  • Single Ferrule
  • Two Ferrule (Double Ferrule)
  • Twin Ferrule
  • Thread

Duplex 2205 angle needle valve chemical composition

Cr Ni Mo C N
22.0-23.0 4.50-6.50 3.00-3.50 .030 Max 0.14-0.20
Mn Si P S Fe
2.00 Max 1.00 Max .030 Max .020 Max Balance

SAF 2205 socket weld needle valve Mechanical properties

Duplex Stainless Steel
Density 7.805
Melting Range,℃ 1450 ℃
Elongation % 25 min.
Tensile Strength (Mpa) 655
Yield Strngth (Mpa) 450
Hardness (Brinell) 293 max

Equivalent grade of Uns s31803 needle valves

STANDARD WERKSTOFF NR. UNS
Duplex 2205 1.4462 S31803, S32205

Pressure Rating Of DSS 2205 needle valve

Port Size (BSP) Nominal Bore (Ømm) Media Pressure Media Temperature CV
1/8″ 5 0 to 408 Bar -20°C to 230°C
¼? 5 0 to 408 Bar -20°C to 230°C 0.4
3/8? 5 0 to 408 Bar -20°C to 230°C 0.4
½? 5 0 to 408 Bar -20°C to 230°C 0.6
¾? 6 0 to 408 Bar -20°C to 230°C 1.6
1? 8 0 to 408 Bar -20°C to 230°C 2.5

Size Chart of Duplex steel high pressure needle valve

Needle Valve size chart

Size L a b W H
1/8″ 56 28 28 60 80
¼” 56 28 28 60 80
3/8” 56 28 28 60 80
½” 58 28 28 60 81
¾” 62 35 35 60 85
1” 70 45 45 70 100

Valve