Pressure–Temperature–Material Compatibility Chart

⚠️ Engineering Disclaimer

Data are approximate working pressures at 38 °C and reduced values with temperature, drawn from ASME B16.34 / EN 1092-1. Actual values vary with design, corrosion allowance, wall thickness, and code requirements. Always verify using certified manufacturer charts before final selection. Halcyon Valves Automation accepts no liability for field misuse.

Valve Flange PCD Compass Calculator

Enter PCD, number of holes, and optional offsets. Get compass/divider settings for flange bolt-circle marking.

Compass A (Bolt Circle Radius): —

Divider / Chord Distance: —

Compass B (Eccentric Offset): —

Hole-to-Hole Angle: —

Hole Coordinates (mm):

Hole Angle (°) X Y
Show Formulae

Compass A: r = PCD / 2

Divider (Chord): C = PCD × sin(180° / N)

Compass B: offset distance between flange center & bolt-circle center

Angular Offset: rotation of hole pattern by entered angle (°)

Coordinates: X = r·cos(θ + offset) + e, Y = r·sin(θ + offset)

Use Compass A for bolt circle, Divider for hole stepping, Compass B if eccentric, and Angular Offset for rotated hole patterns. Verify against ASME B16.5 / IS 1538 before marking.

Thread Calculator (Metric / UNC / BSW / BSP / NPT)

BSP & NPT are pipe threads. BSW extended to 2 in per BS 84 coarse series. Always verify against engineering standards.

Belt–Pulley Speed Calculator

Enter pulley diameters, driver RPM, and center distance. Choose open or crossed belt.

Results
Sketch (not to scale)
Direction: open → same, crossed → reversed.
Formulas

Speed ratio (ideal, no slip): N₂ = N₁ · D₁ / D₂

Belt speed (driver): v = π·D₁·N₁ / 60000 (m/s, D in mm)

Open belt length: L = π(D₁ + D₂)/2 + 2C + (D₂ − D₁)²/(4C)

Crossed belt length: L = π(D₁ + D₂)/2 + 2C + (D₁ + D₂)²/(4C)

Angle of wrap on smaller pulley (open): θ = π − 2·arcsin(|D₂ − D₁|/(2C))

Angle of wrap on smaller pulley (crossed): θ = π + 2·arcsin((D₁ + D₂)/(2C))

Assumes flat/V-belt ideal geometry. Verify wrap ≥ 120° on small pulley for power transmission. Increase C or use idler if wrap is low.

Universal Gear Calculator — Spur • Helical • Worm • Bevel (mm)

Universal Gear Calculator — mm

QuantityGear 1Gear 2Units
Enter values…
PairCenter distance aRatio i = z₂/z₁Units
—
Formulas (20° full-depth): PCD d = m·z, outside do = m·(z+2), root df ≈ m·(z−2.5), base db = d·cosφ, addendum = m, dedendum ≈ 1.25m, center distance a = 0.5·m·(z₁+z₂).

Flange Dimensions – IS 1538 PN 10

Enter the nominal bore (DN mm) to get standard PN 10 flange dimensions (Table E / IS 1538).

Dimensions per IS 1538 PN 10 (Table E). Values rounded to nearest millimetre for reference use only — verify drawing before fabrication or inspection.

ASME B16.5 Flange Dimensions – Class 150

Enter the nominal pipe size (NPS inch) to get standard Class 150 flange dimensions.

Dimensions per ASME B16.5 Class 150 (½ – 24 in). Values rounded to nearest millimetre for reference use only — verify with drawing before fabrication or inspection.

ASME B16.5 Flange Dimensions – Class 300

Enter the nominal pipe size (NPS inch) to get standard Class 300 flange dimensions.

Dimensions per ASME B16.5 Class 300 (½ – 24 in). Rounded to nearest millimetre for reference use only — verify with drawings before fabrication or inspection.

ASME B16.5 Flange Dimensions – Class 600

Enter nominal pipe size (NPS inch) to get standard Class 600 flange dimensions.

Dimensions per ASME B16.5 Class 600 (½ – 24 in). Values rounded to nearest millimetre for reference only — verify with official drawings before fabrication.

ASME B16.5 Flange Dimensions – Class 900

Enter nominal pipe size (NPS inch) to view standard Class 900 flange dimensions.

Dimensions per ASME B16.5 Class 900 (½ – 24 in). Rounded to nearest millimetre for reference use only — verify with official drawings before fabrication.

ASME B16.5 Flange Dimensions – Class 1500

Enter nominal pipe size (NPS inch) to view standard Class 1500 flange dimensions.

Dimensions per ASME B16.5 Class 1500 (½ – 24 in). Rounded to nearest millimetre for reference only — verify with official drawings before fabrication.

ASME B16.5 Flange Dimensions – Class 2500

Enter nominal pipe size (NPS inch) to view standard Class 2500 flange dimensions.

Dimensions per ASME B16.5 Class 2500 (½ – 24 in). Rounded to nearest millimetre for reference only — verify with official drawings before fabrication or inspection.

Gate Valve Face-to-Face Dimensions

Select the pressure class or PN rating and nominal valve size to view standard face-to-face dimensions (in mm) as per IS 14846 / EN 558 / ASME B16.10.

Data from IS 14846 / EN 558 (PN 10) and ASME B16.10 (Class 150 – 600). Verify with project specification or manufacturer before procurement or fabrication.

Globe Valve Face-to-Face Dimensions

Select the pressure class or PN rating and nominal valve size to view standard face-to-face dimensions (in mm) as per IS 14846 PD / ASME B16.10.

Dimensions from IS 14846 (PD pattern) / ASME B16.10. For reference only — verify with manufacturer drawings before fabrication.

Check Valve (NRV) Face-to-Face Dimensions

Select a standard and valve size to view standard face-to-face dimensions (in mm) as per IS 5312 (Part 1) / ASME B16.10.

Data from IS 5312 (Part 1) / ASME B16.10. Verify with certified manufacturer drawings before fabrication or inspection.