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ČSN EN ISO 17769-1 - rated differential pressure, p1–2,r
ČSN EN ISO 17769-1 - Kapalinová čerpadla a čerpací zařízení - Obecné termíny, definice, veličiny, písemné značky a jednotky - Část 1: Kapalinová čerpadla
| Stáhnout normu: | ČSN EN ISO 17769-1 (Zobrazit podrobnosti) Zákazníci, kteří mají na svém počítači sjednanou od České agentury pro standardizaci (ČAS) službu ČSN on-line pro elektronický přístup do plných textů norem v pdf (verzi pro firmy nebo pro jednotlivce), mohou zde přímo otevírat citované ČSN. |
| Datum vydání/vložení: | 2013-08-01 |
| Zdroj: | https://www.iso.org/obp/ui/#iso:std:iso:17769:-1:ed-1:v1:en |
| Třidící znak: | 110001 |
| Obor: | Čerpadla, všeobecně |
| ICS: |
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| Stav: | Platná |
- 2.1.1.1 pump
- 2.1.1.2 pump unit
- 2.1.1.3 installation
- 2.1.1.4 system
- 2.1.1.5 conditions
- 2.1.2.1 design
- 2.1.2.2 rated
- 2.1.2.2.1 rated conditions
- 2.1.2.3 operating
- 2.1.2.3.1 operating conditions
- 2.1.2.4 pressure or temperature rating
- 2.1.2.5 normal
- 2.1.2.6 allowable
- 2.1.2.7.1 working
- 2.1.2.7.2 allowable working alternative
- 2.1.2.8 test
- 2.1.2.9 nominal
- 2.1.3.1 mass rate of flow, q
- 2.1.3.2 rate of flow volume rate of flow, flow rate, Q
- 2.1.3.2.1 optimum rate of flow, Qopt
- 2.1.3.2.2 rated flow, Qr
- 2.1.3.2.3 normal flow, Qn
- 2.1.3.2.4 maximum flow, Qmax
- 2.1.3.2.5 minimum flow, Qmin
- 2.1.3.2.6 maximum allowable flow, Qmax,ad
- 2.1.3.2.7 minimum allowable flow, Qmin, ad
- 2.1.3.2.7.1 minimum allowable stable flow, Qmin, ad, st
- 2.1.3.2.7.2 minimum allowable thermal flow, Qmin,ad, therm
- 2.1.3.3 balancing rate of flow, QB
- 2.1.3.4 leakage rate of flow, QL
- 2.1.3.5 inlet rate of flow, Q1
- 2.1.3.6 outlet rate of flow, Q2
- 2.1.3.7 intermediate take-off rate of flow, Q3, 4…
- 2.1.4.1 reference plane
- 2.1.4.2 height, z
- 2.1.4.3 height of the inlet connection, z1
- 2.1.4.4 height of the outlet connection, z2
- 2.1.4.5 height of the inlet-side measuring point, z1’
- 2.1.4.6 height of the outlet-side measuring point, z2’
- 2.1.4.7 height of the inlet side of the installation, zA1
- 2.1.4.8 height of the outlet side of the installation, zA2
- 2.1.4.9 height of the inlet manometer, z1M
- 2.1.4.10 height of the outlet manometer, z2M
- 2.1.4.11 level difference, zy-x = zy – zx
- 2.1.5.1 head, H
- 2.1.5.1.1 pressure head, HM,x
- 2.1.5.1.2 velocity head, HU
- 2.1.5.1.3 total head, Ht,x
- 2.1.5.1.3.1 installation total head, Ht,A2–1
- 2.1.5.1.3.2 pump total head
- 2.1.5.1.3.3 pump unit total head, Ht,gr2–1
- 2.1.5.2 static head, Hstat
- 2.1.5.3 loss of head, HJx–x
- 2.1.5.4 height of the NPSH datum plane, zD
- 2.1.5.5 net positive suction head, NPSH
- 2.1.5.5.1 net positive suction head available, NPSHA
- 2.1.5.5.2 net positive suction head required, NPSHR
- 2.1.5.5.3 net positive suction head required for a drop of 3%, NPSH3
- 2.1.6 specific energy, e
- 2.1.7.1 inlet area of the pump, A1
- 2.1.7.2 outlet area of the pump, A2
- 2.1.7.3 inlet area of the installation, AA1
- 2.1.7.4 outlet area of the installation, AA2
- 2.1.8.1 mean velocity at point x, Ux
- 2.1.8.2 mean velocity at inlet, U1
- 2.1.8.3 mean velocity at outlet, U2
- 2.1.8.4 mean velocity at inlet area of the installation, UA1
- 2.1.8.5 mean velocity at outlet area of the installation, UA2
- 2.1.8.6 local velocity, Ux
- 2.1.9.1 pressure at point x, px
- 2.1.9.2 atmospheric pressure, pamb
- 2.1.9.3 vapour pressure of the pumped liquid, pv
- 2.1.9.4 inlet pressure of the pump, p1
- 2.1.9.4.1 maximum allowable inlet pressure, p1,max,ad
- 2.1.9.4.2 maximum inlet pressure, p1,max,op
- 2.1.9.4.3 rated inlet pressure, p1,r
- 2.1.9.5 outlet pressure of the pump, p2
- 2.1.9.5.1 maximum outlet pressure, p2,max
- 2.1.9.5.2 rated outlet pressure, p2,r
- 2.1.9.6.1 differential pressure
- 2.1.9.6.2 rated differential pressure, p1–2,r
- 2.1.9.7 gauge pressure at point, px,man
- 2.1.9.8 inlet pressure of the installation, pA1
- 2.1.9.9 outlet pressure of the installation, pA2
- 2.1.9.10 maximum allowable working pressure, pmax,ad
- 2.1.9.11 maximum allowable casing working pressure, pmax,ad.C
- 2.1.9.12 maximum dynamic sealing pressure, pS,max,op
- 2.1.9.13 maximum static sealing pressure, pS,max,stat
- 2.1.9.14 hydrostatic test pressure, ptest
- 2.1.9.15 basic design pressure, pb
- 2.1.9.16 velocity pressure, pu
- 2.1.10.1 maximum allowable temperature, θmax,ad
- 2.1.10.2 allowable temperature range of the pump
- 2.1.11.1 pump power output, Pu
- 2.1.11.2 pump power input, P
- 2.1.11.2.1 pump rated power input, Pr
- 2.1.11.3 driver power input, Pmot
- 2.1.11.4 driver rated power output, Pmot,u,r
- 2.1.11.5 pump mechanical power losses, PJ,ab
- 2.1.12.1 pump efficiency, η
- 2.1.12.1.1 pump best efficiency, ηmax, ηopt, ηBEP
- 2.1.12.2 mechanical efficiency, ηm
- 2.1.12.3 hydraulic efficiency, ηh
- 2.1.12.4 motor efficiency, ηmot
- 2.1.12.5 overall efficiency, ηgr
- 2.1.13.1 duty point
- 2.1.13.2 guarantee point
- 2.1.13.3 allowable operating range
- 2.1.13.4 pump power input curve
- 2.1.13.5 pump efficiency curve
- 2.1.13.6 pump NPSH curve
- 2.1.13.7 installation NPSH curve
- 2.1.14.1 speed, n
- 2.1.14.2 maximum allowable continuous speed, nmax,ad
- 2.1.14.3 minimum allowable continuous speed, nmin,ad
- 2.1.14.4 rated speed
- 2.1.14.5 trip speed, ntrip
- 2.1.14.6 clockwise rotation, CW
- 2.1.14.7 counter-clockwise rotation, CCW
- 2.1.15.1 connection loads
- 2.1.15.2 force, FX, FY, FZ, FR
- 2.1.15.3 moment, MX, MY, MZ, MR (2.1.15.3)
- 2.1.15.4 axial load of pump rotor, Fax
- 2.1.15.4.1 design axial load, Fax,d
- 2.1.15.4.2 maximum axial load, Fax,max
- 2.1.15.5 radial load of pump rotor, Frad
- 2.1.15.5.1 design radial load, Frad,d
- 2.1.15.5.2 maximum radial load, Frad,max
- 2.1.15.6 shaft deflection
- 2.1.16.1 density, p
- 2.1.16.2 kinematic viscosity, u
- 2.1.16.3 dynamic viscosity, μ
- 2.1.16.4 mixture
- 2.1.16.5 gas content
- 2.1.16.6 solid content
- 2.1.16.7 multi-phase
- 2.1.17.1 pump liquid
- 2.1.17.2 liquid pump
- 2.1.17.3 parallel operation
- 2.1.17.4 series operation
- 2.1.17.5 corrosion allowance
- 2.1.17.6 axial split
- 2.1.17.7 radial split
- 2.1.17.8 shaft runout
- 2.1.17.9 shaft stiffness
- 2.1.17.10 face runout
- 2.1.17.11 seal flush circulation
- 2.1.17.12 injection flush
- 2.1.17.13 barrier liquid
- 2.1.17.14 buffer liquid
- 2.1.17.15 quenching
- 2.1.17.16 throttle bush
- 2.1.17.17 auxiliary connections
- 2.1.17.18 canned motor pump, canned rotor
- 2.1.17.19 hydrodynamic bearing
- 2.1.17.19.1 hydrodynamic radial bearing
- 2.1.17.19.2 hydrodynamic thrust bearing
- 2.1.17.20 product lubrication
- 2.1.17.21 submersible pump
- 2.1.17.22 submergible pump
- 2.1.17.23 pump driver, driver
- 2.1.17.24 coupling
- 2.1.17.24.1 coupling service factor
- 2.1.17.25 part
- 2.1.17.26 sub-assembly
- 2.1.17.27 component
- 2.1.17.28 standby service
- 2.1.17.29 standby pump
- 2.1.17.30 pressure casing
- 2.2.1.1 minimum continuous stable flow, Qst,min
- 2.2.1.2 minimum continuous thermal flow, Qtherm,min
- 2.2.1.3 allowable operating range
- 2.2.2.1 NPSH datum plane
- 2.2.3.1 optimum pump power input, Popt
- 2.2.3.2 shut-off pump power input, P0
- 2.2.3.3 maximum pump power input, Pmax
- 2.2.4.1 optimum head, Hopt
- 2.2.4.2 shut-off head, H0
- 2.2.4.3 head at peak point, Hp
- 2.2.4.4 maximum head, Hmax
- 2.2.4.5 net positive suction head 3 %, NPSH3
- 2.2.5.1 throat area, Amin
- 2.2.6.1 mean velocity at throat, Uthr
- 2.2.6.2 critical speed, nc
- 2.2.6.3 dry critical speed, nc,dry
- 2.2.6.4 wet critical speed, nc,wet
- 2.2.7.1 pump, H(Q)
- 2.2.7.1.1 stable pump H(Q) curve
- 2.2.7.1.2 unstable pump H(Q) curve
- 2.2.7.2 peak point
- 2.2.7.3 operating point
- 2.2.8.1 type number, Knum
- 2.2.8.2 specific speed, ns
- 2.2.8.3 suction-specific speed, nss
- 2.2.9.1 rotodynamic pump
- 2.2.9.2 single stage
- 2.2.9.3 multi-stage
- 2.2.9.4 single flow
- 2.2.9.5 double flow
- 2.2.9.6 close-coupled
- 2.2.9.7 double casing
- 2.2.9.8 barrel casing
- 2.2.9.9 rotor
- 2.3.1.1 slip flow, Qsl
- 2.3.1.2 geometrical flow, Qg
- 2.3.2.1 valve seat area, Avst
- 2.3.2.2 valve spill area, Avsp
- 2.3.2.3 pumping chamber area, Apc
- 2.3.3.1 valve seat velocity, Uvst
- 2.3.3.2 valve spill velocity, Uvsp
- 2.3.3.3 piston velocity, Upi, plunger velocity, Upl
- 2.3.4.1 relief-valve set pressure, prv,set
- 2.3.4.2 relief-valve accumulation pressure, prv,a
- 2.3.4.3 relief-valve reseat pressure, prv,rs
- 2.3.4.4 relief-valve back pressure, prv,b
- 2.3.4.5 pressure pulsations, ppul,x
- 2.3.4.6 pre-charge pressure, pd
- 2.3.4.7 net positive inlet pressure, NPIP
- 2.3.4.8 net positive inlet pressure available, NPIPA
- 2.3.4.9 net positive inlet pressure required, NPIPR
- 2.3.5.1 clearance volume, Vcl
- 2.3.5.2 swept volume, Vsw
- 2.3.5.3 geometric displacement volume, Vg
- 2.3.5.4 rod load, RL
- 2.3.5.5 volumetric efficiency, η1–2
- 2.3.6.1 single acting
- 2.3.6.2 double acting
- 2.3.6.3 simplex, duplex, triplex, multiplex
- 2.3.6.4 inboard pump
- 2.3.6.5 outboard pump
- 2.3.6.6 manifold
- 2.3.6.7 pulsation dampener
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Nahlásit chybu
2.1.9.6.2 rated differential pressure, p1–2,r
differential pressure for the operating conditions (2.1.2.3.1) at the guarantee point
NOTE The rated differential pressure is expressed in pascal (1 bar = 100 kPa).
2.1.9.6.2 předepsaná tlaková diference, p1–2,r
tlaková diference při pracovních podmínkách (2.1.2.3.1) v zaručovaném bodě
poznámka Předepsaná tlaková diference se vyjadřuje v pascalech (1 bar = 100 kPa).