TYTON 2100 Series Pipe Data Generator

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INTRODUCTION AND NOTES ON USE

  1. This calculator derives the key data for ductile iron pipe. Although K9 pipe is no longer manufactured, properties can be derived to allow assessment of old mains. Flange Class (FC) pipe has very similar properties to the superseded K12 class pipe. The variances are due to minor cement mortar lining thickness differences and are deemed negligible in most cases. The pressure Classes PN20 and PN35 are also included.
  2. The calculator is drop-down menu driven, the calculator being activated by a right-mouse click outside the data box.

PARAMETER UNITS SELECTION
DN 100-750
MODEL Xcel Xtreme etc…
PRESSURE CLASS PN, K or FC
LINING C, CSC, CA, U
EFFECTIVE LENGTH (ELL) 5.75m 6.00m
EXTERNAL COATING Zinc, Zinalium
PIPE CODE
DIMENSIONS
Mean outside diameter OD(mm)
Nominal DI wall thickness t(mm)
Minimum DI wall thickness a(mm)
Mean DI wall thickness m(mm)
Nominal cement mortar lining thickness cnom
Minimum cement mortar lining thickness cmin
Transformed wall thickness tt(mm)
MASS
Mean unlined mass kg/m
Mean lined mass kg/m
Mass for lifting and transport kg/m
MATERIAL PROPERTIES
Ultimate tensile strength MPa
0.2% Proof stress MPa
Ultimate compressive strength MPa
Young's modulus for DI MPa
HYDRAULICS
Mean Internal Diameter b(mm)
Internal Surface Area b(mm)
Pipe Volume l
Bore finish m2
k, measure of bore roughness mm
g, acceleration due to gravity m/s/s
S, headloss or gradient m/km
n, kinematic viscosity m2/s
v, velocity m/s
Q, discharge l/s
Q, discharge ML/d
The above relationships are derived from the following Colebrook-White equation:
v = -2 (2 g D S)0.5 log(k/3.7/D + 2.51ν/D/(2 g D S)0.5)
a, celerity m/s
a/g, Joukousky's hammer factor s
SITE TEST
Litres/mm DN/km/24h/30m head L/km/h/m
Pipeline length km
Test duration h
Test head m
Allowable leakage IL
PRESSURE RATING p = 2ft/(D-t)
AOP (FOS)
MAOP (FOS)
AOP (Theoretical) MPa
MAOP (Theoretical) MPa
ASTP (Theoretical) - 1.25 MPa
AOP (Standard) MPa
MAOP (Standard) MPa
ASTP (Standard) MPa
PHTP (Standard) MPa
STRUCTURAL PROPERTIES
Ring bending
Ring Stiffness unlined N/m/m
Ring Stiffness lined N/m/m
Critical buckling pressure FOS
Critical buckling pressure unlined (Pcr=24S/FOS/(1-ν2)) kPa
Critical buckling pressure lined kPa
Maximum allowable diametral deflection %
Beam bending
I, 2nd moment of area (π/64(D4-d4)) mm4
Z, elastic section modulus (2V/D) mm4
Yield moment (σZ) kNm
JOINT CAPACITY
Maximum angular deflection degrees
Effective laying length m
Minimum radius of deflection m
Offset per metre of barrel m
Offset per effective laying length m
Maximum strain mm/m
THERMAL EXPANSION
Coefficient of thermal expansion
Thermal change degrees
Thermal strain  
Pipeline length m
Thermal change m
Thermal stress MPa
Cross sectional area mm2
Thermal Thrust kN
PRESSURE THRUST
Pressure MPa
Blank end kN
90 kN
45 kN
22.5 kN
11.25 kN