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Hastelloy needle valve

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Table of content

Hastelloy needle valve specification

Working Pressure Up to 6000 PSIG
End Connection Male to Female, Male and Female NPT, Socket Weld (SW) or Dual Ferrule Tube Connections, BSPT, Female to Female
Sizes 1/8 to 4”, Sizes available on request
Pressure rating 150#, 300#, 600#, 900#, 1500#

Alloy C276 screwed bonnet needle valve chemical composition

Grade C Mn Si S Co Ni Cr Fe Mo P
C276 0.010 max 1.00 max 0.08 max 0.03 max 2.50 max 50.99 min* 14.50 – 16.50 4.00 – 7.00 15.00 – 17.00 0.04 max
C22 0.010 max 0.50 max 0.08 max 0.02 max 2.50 max 50.015 min* 20.00 – 22.50 2.00 – 6.00 12.50 – 14.50 0.02 max
B2 0.02 max 1.0 max 0.1 max 0.03 max 1.0 max Bal 1.0 max 2.0 max 26 – 30 0.04 max

Din 2.4819 instrumentation needle valve Mechanical properties

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Hastelloy C276 8.89 g/cm3 1370 °C (2500 °F) Psi – 1,15,000 , MPa – 790 Psi – 52,000 , MPa – 355 40 %
Hastelloy C22 8.69 g/cm3 1399 °C (2550 °F) Psi – 1,00,000 , MPa – 690 Psi – 45000 , MPa – 310 45 %
Hastelloy B2 9.2 g/cm3 1370 °C (2500 ºF ) Psi – 1,10,000 , MPa – 760 Psi – 51000 , MPa – 350 40 %

Equivalent grade of Hastelloy c276 needle valve

STANDARD WERKSTOFF NR. UNS JIS GOST EN OR
Hastelloy C276 2.4819 N10276 NW 0276 ХН65МВУ NiMo16Cr15W ЭП760
Hastelloy C22 2.4602 N06022 NW 6022 – NiCr21Mo14W –
Hastelloy B2 2.4617 N10665 – – – –

Pressure Rating Of Alloy C22 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 Uns n10276 hydraulic 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