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Mss Valve Standards

Reference data and engineering information about mss valve standards for fluid mechanics applications.

mssvalvestandards

Overview

Engineering reference data for Mss Valve Standards in fluid mechanics.

Key Formulas

Reynolds Number

Re=ρvDμRe = \frac{\rho v D}{\mu}

Ratio of inertial to viscous forces — determines flow regime.

Bernoulli's Equation

P+12ρv2+ρgh=constP + \frac{1}{2}\rho v^2 + \rho g h = \text{const}

Conservation of energy for steady, inviscid, incompressible flow.

Continuity Equation

A1v1=A2v2A_1 v_1 = A_2 v_2

Conservation of mass for incompressible flow.

Darcy-Weisbach

ΔP=fLDρv22\Delta P = f \frac{L}{D} \frac{\rho v^2}{2}

Pressure drop due to friction in a pipe.

Variables

SymbolDescriptionUnit
ReReReynolds number
ρ\rhoFluid densitykg/m³
vvFlow velocitym/s
DDCharacteristic dimensionm
μ\muDynamic viscosityPa·s
PPPressurePa
ffDarcy friction factor

MSS SP Standards Catalog

17 rows
Comprehensive list of MSS SP standards for valves and fittings
Standard
Description
MSS SP-6Standard finishes for contact faces of pipe flanges of valves & fittings
MSS SP-9Spot facing for bronze, iron & steel flanges
MSS SP-25Standard marking system for valves, fittings, flanges & unions
MSS SP-42Class 150 corrosion resistant gate, globe, angle & check valves with flanged & butt weld ends
MSS SP-54Quality standard for steel castings - radiographic inspection method for valves, flange, fittings & other piping components
MSS SP-55Quality standard for steel castings for valves, flanges & fittings & other piping components
MSS SP-60Connecting flange joint between tapping sleeves & tapping valves
MSS SP-61Hydrostatic testing of steel valves
MSS SP-67Butterfly valves
MSS SP-70Cast iron gate valves, flanged & threaded ends
MSS SP-71Cast iron swing check valves, flanged & threaded ends
MSS SP-72Ball valves with flanged or butt-welding ends for general service
MSS SP-78Cast iron plug valves
MSS SP-80Bronze Gate, globe angle & check valves
MSS SP-82Valves pressure testing methods
MSS SP-84Steel valves socket welding & threaded ends
MSS SP-86Metric data in standards for valves, flanges & fittings

Source: Manufacturers Standardization Society

References