Five independent calculation modules for X43F-150Lb plug valve design verification per API 6D standard. Covers body wall thickness, plug circumferential force, plug head strength, middle flange bolt strength and flow coefficient with automatic PASS/FAIL verdicts.
Start with Body Thickness →
ASME B16.34 + BS EN 12516-1 dual method: t1' = 0.020·d+4.50 and (Pc·d)/(2S-1.2Pc)+C
MF = MI+MT+MJ total torque and QS handle effort per API 6D 360 N limit
Ws=β·a³ section modulus, τN and 2× torque verification vs 0.8·Sm / 0.6·Sm
σL=QL/SL with QL=max(Q',Q'') per Practical Valve Design Manual
IEC 60534-2-1: KV=Q·√((ρ/1000)/△P) with Bernoulli physical △P
M1+M2: Verify body wall and plug circumferential force
M3: Check plug head torsional stress
M4: Verify middle flange bolt tensile stress
M6: Compute valve flow coefficient KV
M3+M4+M5: Disc thickness and section A-A/B-B stress
M6: Calculate total operating torque
M7: Verify torsional stress at key sections
Run individual modules with shared design inputs. Each calculator provides formula details, input validation, and automatic PASS/FAIL verdict.
Start with the body wall thickness calculator and work through all 5 modules.
Launch Body Thickness Calculator