Besa series 240GOST Flanged connections EN (PN 16-25-40) o ANSI (CL 150 e 300). Different execution...

Tavola riassuntiva delle principali caratteristiche costruttive e di funzionamentoMain fabrication and operating characteristics table

da -10 a +300°Cda -10 a +400°Cda -10 a +350°Cda -20 a +425°Cda -196 a +537°C

Classificazione corpi

corpoGhisa

Acciaio

EntrataEN PN 16EN PN 25 ASME CL 150

EN PN 16-EN PN25EN PN 40ASME CL 150ASME CL 300

UscitaEN PN 16

ASME CL 150

EN PN 16

ASME CL 150

EntrataPN 25

CL 300

UscitaPN 16

CL 150

Materiale Esecuzioni flangiate Esecuzioni filettate

series 240

Materiali di costruzione di corpo e cappello Interv. temp. di esercizio*

Aeriformi Liquidi

*** Nel caso di contropressione imposta fare riferimento all’Ufficio Tecnico.

Massima contropressione generata ammessa pb***

Sovrapressione

Scarto di chiusura

+5% se p ≥3 bar +10% se 1≤p<3 bar+0.1 bar se p<1 bar-10% di p - 0.1 bar se p<1 bar

+10% di p + 0.1 bar se p>1 bar

-20% di p - 0.2 bar se p<1 bar

Corpo e cappello in ghisaCorpo in acciaio al carbonio e cappello aperto in ghisaCorpo in acciaio al carbonio e cappello chiuso in ghisaCorpo e cappello in acciaio al carbonioCorpo e cappello in acciaio inossidabile* Per temperature e pressioni diverse da quelle riportate nella presente tabella, fare riferimento all’Ufficio Tecnico.

241 Mezzo boccaglio241b Boccaglio pieno


241F Mezzo boccaglio 241bF Boccaglio pieno


Cappello chiuso(molla coperta)

Cappello aperto (molla scoperta)


Cappello aperto (molla scoperta)

PED-ATEX-RINA-G.L.-GOST- B.V.

PED - GOST

PED-ATEX-RINAG.L.-GOST-B.V.

PED - GOST

Connessioni std. Flangiate EN o ANSI (per esecuzioni diverse, fare riferimentoall’Ufficio Tecnico)

Connessioni filettate (GAS-NPT)

Mod. Tipo di cappello Certificati Connessioni241 Semi nozzle241b Full nozzle

242 Semi nozzle242b Full nozzle

241F Semi nozzle241bF Full nozzle

242F Semi nozzle242bF Full nozzle

Closed(covered spring)

Open(uncovered spring)

Closed(covered spring)

Open(uncovered spring)


PED - GOST


PED - GOST

Flanged connections. According to ENor ANSI (for different executions please refer to Technical Dept.)

GAS or NPT threaded connections.

Type Bonnet type Certifications Connections

Principali caratteristiche di funzionamento Main operating characteristics

from -10 to +300°Cfrom -10 to +400°Cfrom -10 to +350°Cfrom -20 to +425°Cfrom -196 to +537°C

Body and bonnet construction material Temperature Range*Cast iron body and bonnetCarbon steel body and cast iron open bonnetCarbon steel body cast iron closed bonnetCarbon steel body and bonnetStainless steel body and bonnet* For temperature and pressure different than those in this table, ask to Technical Department.

Kd (certificato)Kdr (Kd • 0.9) (ridotto)

0.810.73

0.550.50

Coefficienti di efflusso Aeriformi Liquidi

Intervallo pressioni di taratura p: da 0.2 a 40 bar da 0.2 a 40 barApplicazioni Aeriformi Liquidi

Set pressure range p: from 0.2 to 40 bar from 0.5 to 40 barApplications Gaseous Liquid

Kd (certified)Kdr (Kd • 0.9) (derated)

0.810.73

0.550.50

Coefficient of discharge Gaseous Liquid

Gaseous LiquidOverpressure

Blow down

+5% if p≥3 bar +10% if 1≤p<3 bar+0.1 bar if p<1 bar-10% of p - 0.1 bar if p<1 bar

+10% of p + 0.1 bar if p>1 bar

-20% of p - 0.2 bar if p<1 bar

*** In case of superimposed backpressure, please refer to Technical Department.

15% della pressione di taratura (aeriformi)20% della pressione di taratura (liquidi)40% della pressione di taratura

Valvola senza soffietto di bilanciamento

Valvola con soffietto di bilanciamento

Maximum allowable built up back pressure pb***15% of set pressure (gas and vapour)20% of set pressure (liquid)40% of set pressure

Safety valves without balancing bellow

Safety valves with balancing bellow

Body Ratings





Chiuso(molla coperta)

Aperto (molla scoperta)

Chiuso(molla coperta)

Aperto (molla scoperta)

materialCast iron

Cast steel

InletEN PN 16EN PN 25 ASME CL 150

EN PN 16-EN PN25EN PN 40ASME CL 150ASME CL 300

OutletEN PN 16

ASME CL 150

EN PN 16

ASME CL 150

InletPN 25

CL 300

OutletPN 16

CL 150

Body Flanged valves Threaded valves

Per limiti di impiego differenti da quelli indicati nella presente tavola, fare riferimento all’Ufficio Tecnico.

Valvole di sfioro Le valvole della serie 240 sono disponibili anche nella versione valvole di sfioro. Le Valvole di sfioro, identificate dalla lettera R posta accanto al numero identificante il modello, si caratterizzano come accessori (dispositivi) a pressione aventi funzione di servizio. I materiali di costruzione, le dimensioni ed i limiti di utilizzo secondo il rapporto pressione/temperatura delle valvole di sfioro, sono gli stessi validi per le valvole di sicurezza della Serie 240.

alcuni dati riportati nella presente pagina possono variare su specifica richiesta, previa analisi e approvazione delle funzioni competenti di besa® s.p.a.

For operating range different than those in this table please refer to Technical Dept.

Relief Valves240 Series Safety valves are also available as Relief valves. Relief valves, identified by the letter R after the type number, are devices with an operational function, having pressure-bearing housings. Materials, dimensions and ap-plication limits depending on Pressure/Temperature ratio for Relief Valves are the same of Safety Valves 240 Series.

some information given on these pages can be changed upon specific requests, after besa® qualified office approval.

Note Note

LEGENDA: p=set pressure (barg) pb= backpressure (barg) LEGENDA: p= pressione di taratura (barg); pb= contropressione (barg).

Besa®

240-1

Tavola riassuntiva delle principali caratteristiche costruttive e di funzionamentoMain fabrication and operating characteristics table

series 240241 TModello Descrizione Tipo di

cappelloCertificati Connessioni

241 T Mezzo boccaglio - corpo valvola rivestito in materiale termoplastico e soffietto di bilanciamento/protezione in PTFE


PEDATEXGOST


241 TType Description Bonnet type Certification Connections

241 T Semi nozzle Valve body lined with thermoplastic material and balancing/isolating bellow in PTFE

Closed bonnet(covered spring)

PEDATEXGOST


241 bTModello Descrizione Tipo di


241 bT Corpo valvola con boccaglio pieno e soffietto di bilanciamento / protezione in PTFE


PEDATEXGOST

Connessioni std. Flangiate EN (PN 16-25-40) o ANSI (CL 300 e 300) Esecuzioni diverse su specifica richiesta.

241 bTType Description Bonnet type Certification Connections

241 bT Valve body with PTFE full nozzle and isolating/balancing bellow


PEDATEXGOST

Flanged connections EN (PN 16-25-40) o ANSI (CL 150 e 300). Different executionupon request.

Principali caratteristiche di funzionamentoModello Campo di applic. Aeriformi Liquidi Interv. temp. di esercizio

241 T Campo pressioni di taratura p

da 0.2 a 10 bar da 0.2 a 10 bar

241 Tb241 bT

Campo pressioni di taratura p

da 0.2 a 16 bar da 0.2 a 16 bar

241 T241 Tb

Corpo in acciaio rivestito in materiale termoplastico da -20 a +150°C (vapore e gas)da -20 a +100°C (liq.)

241 bT-C Corpo in acciaio al carbonio con boccaglio in PTFE da -20 a +200°C241 bT-i Corpo in acciaio inossidabile con boccaglio in PTFE da -196 a +200°C

Coefficiente di efflusso Kd certificato

0.81 0.55

Coeff. di efflusso ridotto Kdr (kd•0.9)

0.73 0.50

Sovrapressione +5% se p>3 bar

+10% di p +0.1 bar se p> 1 bar

+10% se 1≤p<3 bar+0.1 bar se p<1 bar

Scarto di chiusura -10% di p - 0.1 bar se p < 1 bar

-20% di p - 0.2 bar se p < 1 bar

Max contropressione generata ammessa pbValvola senza soffietto di bilanciamento

35% della pressione di taratura (generata)

Main operating characteristicsType Applications Gaseous Liquid Temperature range

241 T Set pressure range p

from 0.2 up to 10 bar


241 Tb241 bT

Set pressure range p



241 T241 Tb

Cast steel body lined with thermoplastic material from -20 up to +150°C (vapour and gas)

from -20 up to +100°C241 bT-C Carbon steel body with PTFE nozzle from -20 up to +200°C241 bT-i Stainless steel body with PTFE nozzle from -196 up to +200°C

Certified coefficient of discharge Kd

0.81 0.55

Derated coefficient of discharge Kdr (kd•0.9)

0.73 0.50

Overpressure +5% if p>3 bar

+10% of p +0.1 bar if p> 1 bar

+10% if 1≤p<3 bar+0.1 bar if p<1 bar

blow down -10% of p - 0.1 barif p < 1 bar

-20% of p - 0.2 bar if p < 1 bar

Max. allowable back pressure pbSafety valves without balancing bellow

35% of set pressure (built up)

L’idoneità all’esercizio del materiale di rivestimento, deve essere valutata in relazione alle seguenti condizioni: natura e stato fisico del fluido di processo; pressione e temperatura di esercizio.

Valvole di sfioroLe valvole della serie 240 sono disponibili anche nella versione valvole di sfioro. Le Valvole di sfioro, identificate dalla lettera R posta accanto al numero identificante il modello, si caratterizzano come accessori (dispositivi) a pressione aventi funzione di servizio. I materiali di costruzione, le dimensioni ed i limiti di utilizzo secondo il rapporto pressione/temperatura delle valvole di sfioro, sono gli stessi validi per le valvole di sicurezza della Serie 240.

alcuni dati riportati nella presente pagina possono variare su specifica richiesta, previa analisi e approvazione delle funzioni competenti di besa® s.p.a.

Lining material suitability to operating conditions, shall be verified considering: kind and physical state of process medium, operating pressure and temperature.

Relief Valves240 Series Safety valves are also available as Relief valves. Relief valves, identified by the letter R after the type number, are devices with an operational function, having pressure-bearing housings. Materials, dimensions and ap-plication limits depending on Pressure/Temperature ratio for Relief Valves are the same of Safety Valves 240 Series.

some information given on these pages can be changed upon specific requests, after besa® qualified office approval.

Note NoteLEGENDA: p=set pressure (barg) pb= backpressure (barg) LEGENDA: p= pressione di taratura (barg); pb= contropressione (barg).

Lining materials available for Type 241T: PFA, PVDF, ETFE, HALAR. (lining thickness 0,8 mm)Materiali di rivestimento previsti per il modello 241T: PFA, PVDF, ETFE, HALAR. (spessore del rivestimento 0,8 mm)

Besa®

240-2

241 TbModello Descrizione Tipo di


241 Tb Boccaglio pieno in PTFE- corpo valvola rivestito in materiale termoplastico e soffietto di bilanciamento/ protezione in PTFE


PEDATEXGOST


241 TbType Description Bonnet type Certification Connections

241 Tb PTFE Full nozzle Valve body lined with thermoplastic material and balancing/isolating bellow in PTFE


PEDATEXGOST


series 240Std. material legenda Description 241-G / 242-G

Valve with cast iron body

241-C / 242-CValve with carbon steel body

241-IValve with stainless steel body

1 Valve body Cast iron G250 Carbon steelASTM A216 WCB - EN 1.0619

Stainless steelASTM A351 CF8M - EN 1.4408

2 Seat Stainless steelASTM 316 - EN 1.4401

Stainless steelASTM 316 - EN 1.4401


3 Disc Stainless steelASTM 420 - EN 1.4028



4 Ball Stainless steelASTM 420 - EN 1.4028



5 Guide Cast iron Gs450/10with BushASTM 430 F Tenifer

Cast iron Gs450/10with Bush in ASTM 430F Tenifer or Stainless steel ASTM 316 - EN 1.4401


6 Spring plate AVP steel AVP steel Stainless steelASTM 316 - EN 1.4401

7 Spindle Stainless steelASTM 430F - EN 1.4104

Stainless steelASTM 430F - EN 1.4104


8 Spring Carbon steelAlloy steel

Carbon steelAlloy steel

Stainless steelASTM 316 S42

9 Pressure adjusting screw

Brass 0T58/AVP steel Brass 0T58/AVP steel Stainless steel with Bush ASTM 316 EN 1.4401 IN PTFE

10 Bonnet Cast iron GS450/10 Cast iron GS450/10 or Carbon steel ASTM A216 WCB - EN 1.0619


11 Tight cap H4 with lifting lever

Cast iron GS450/10 Cast iron GS450/10 Stainless steelASTM A351 CF8M - EN 1.4408

Open Cap H3 with plain lifting lever Tight Cap H2 without lifting leverTight Cap H4 with packed lifting lever

Dimensions defining valve performancesDN IInlet

Actual orificediameter

mm

Actual discharge area

cm2

DN OOutlet

Disc lift

mm.

Max set pressure

Cast iron steelbarg

20-3/4 18 2.54 40-1”1/2 5.5 25 4025-1” 23 4.15 40-1”1/2 6.9 25 4032-1”1/4 29 6.61 50-2” 7.5 25 4040-1”1/2 37 10.75 65-2”1/2 10.2 25 4050-2” 46 16.62 80-3” 13.5 25 4065-2”1/2 60 28.27 100-4” 17.0 25 4080-3” 74 43.00 125-5” 21.5 25 40100-4” 92 66.48 150-6” 27.6 25 40125-5” 98 75.43 200-8” 29.4 25 30150-6” 125 122,72 250-10” 37.5 25 30200-8” 165 213.82 350-14” 48 / 30250-10” 200 314.16 400-16” 58 / 20

Caps

Center to face dimensions (mm)

dn

oUTleTbodY inleT

bodY

dn o

dn i

dn o

dn i

DN I 20253240506580100125150200250

NoteValves can be manufactured with materials different than those in this table upon request and after Besa® Technical Dept. approval.

Besa®

Valvole di sicurezza Modello 241-242Safety Valves Type 241-242

240-4

241-G / 242-G 241-C / 242-C / 241-Ien Flangepn16/pn16pn25/pn16

ansi/asMe FlangeCl150/Cl150

en Flangepn16/pn16pn25/pn16pn40/pn16

ansi/asMeFlangeCl150/Cl150Cl300/Cl150

a b a b a b a b H95 85 94.5 79.7 95 85 94.5 82.9 215

100 107 99.5 103.3 100 105 99.5 104.5 265110 115 109 110.9 110 115 109 116 330115 142 117.2 139.5 117 140 117.2 142.6 375120 152 121.3 149.0 120 150 121.3 151.2 420140 170 139.8 168.2 136 172 139.8 175.4 525160 195 157.8 172.8 173 197 157.8 201.6 600180 222 179.4 217.8 188 220 179.4 227.7 655204 250 202.6 243.8 198 246 202.6 254.9 655225 294 223.2 285.4 216 288 223.2 296.5 780

345 350 349.9 357.3 1161454 450 459.5 459.6 1161

approximate dimensions to be confimed at order

(except DN 150 – 200 – 250)

series 240Std. material legenda Description 241b-C / 242b-C

Valve with carbon steel body

241b-IValve with stainless steel body

1 Valve body Carbon steelASTM A216 WCB - EN 1.0619


2 Full nozzle (seat) Stainless steelASTM 316 - EN 1.4401






5 Guide Cast iron GS450/10with Bush in ASTM 430F Tenifer or Stainless steel ASTM 316 - EN 1.4401


6 Spring plate AVP steel Stainless steelASTM 316 - EN 1.4401






Brass OT58 / AVP steel Stainless steelASTM 316 - EN 1.4401 / with Bush in PTFE

10 Bonnet Cast iron GS 450/01 or Carbon steelASTM A216 WCB - EN 1.0619



Cast iron GS 450/10 Stainless steelASTM A351 CF8M - EN 1.4408

Caps

241b-C / 242b-C / 241b-Ien Flangepn16/pn16pn25/pn16pn40/pn16

ansi/asMeFlangeCl150/Cl150Cl 300/Cl150

a b a b H95 85 94.5 82.9 215

100 105 99.5 104.5 265110 115 109 116 330170 140 117.2 142.6 375120 150 121.3 151.2 420136 172 139.8 175.4 525173 197 157.8 201.6 600188 220 179.4 227.7 655198 246 202.6 254.9 665216 288 223.2 296.5 780345 350 349.9 357.3 1161454 450 459.5 459.6 1161



Actual orificediametermm

Actual discharge areacm2

DN OOutlet

Disc lift

mm.

Max set pressure

barg20-3/4” 18 2.54 40-1”1/2 5.5 4025-1” 23 4.15 40-1”1/2 6.9 4032-1”1/4 29 6.61 50-2” 7.5 4040-1”1/2 37 10.75 65-2”1/2 10.2 4050-2” 46 16.62 80-3” 13.5 4065-2”1/2 60 28.27 100-4” 17.0 4080-3” 74 43.00 125-5” 21.5 40100-4” 92 66.48 150-6” 27.6 40125-5” 98 75.43 200-8” 29.4 30150-6” 125 122.72 250-10” 37.5 30200-8” 165 213.82 350-14” 48 30250-10” 200 314.16 400-16” 58 20

dn o

dn i


DN I 20253240506580100125150200250

Valves can be manufactured with materials different than those in this table upon request and after Besa® Technical Dept. approval.

Besa®

Valvole di sicurezza Modello 241b-242bSafety Valves Type 241b-242b

Note

240-6


(except DN 150 – 200 – 250)

Caps

Valvole di sicurezza Modello 241F-242FSafety Valves Type 241F-242F

series 240Std. material legenda Description 241F-G / 242F-G

Valve withcast iron body

241F-C / 242F-CValve with carbon steel body

241F-IValve with stainless steel body

1 Valve body Cast iron G250 Carbon steelASTM A216 WCB - EN 1.0619


2 Seat Stainless steelASTM 316 - EN 1.4401









5 Guide Cast iron GS450/10with bush ASTM 430F Tenifer

Cast iron GS450/10 with bush ASTM 430F Tenifer or stainless steel ASTM 316 - EN 1.4401


6 Spring plate AVP Steel AVP Steel Stainless steelASTM 316 - EN 1.4401


Stainless steelASTM 430F - EN 1.4104



Carbon steelAlloy steel



Brass OT58/AVP steel Brass OT58/AVP steel Stainless steelASTM 316 - EN 1.4401with bush PTFE

10 Bonnet Cast iron GS 450/10 Cast iron GS 450/10 or Carbon steelASTM A216 WCB - EN 1.0619



Cast iron GS 450/10 Cast iron GS 450/10 Stainless steelASTM A351 CF8M - EN 1.4408

241F-G / 242F -G 241F-C / 242F -C / 241F-I

a b a b H95 67 95 67 215

100 84.5 100 84.5 265110 95 110 95 330115 116.6 115 116.6 375



Actual orificediameter

mm

Actual discharge area

cm2

DN OOutlet

Disc lift

mm.

Max set pressure

Cast iron steelbarg

1” M 18 2.54 1”1/2 F 5.5 25 401”1/4 M 23 4.15 1”1/2 F 6.9 25 401”1/2 M 29 6.61 2” F 7.5 25 402” M 37 10.75 2”1/2 F 10.2 25 40

M= Male threadingGAS UNI 228 O NPT ASME B1.20.1F= Female threading

CapsOpen Cap H3 with plain lifting lever Tight Cap H2 without lifting leverTight Cap H4 with packed lifting lever

dn o

dn i

Note


DN I 1” M1”1/4 M1”1/2 M2” M

Besa®

240-8


Valvole di sicurezza Modello 241b-242bSafety Valves Type 241b-242b

series 240Std. material legenda Description 241bF-C / 242bF-C

Valve with carbon steel body

241bF-IValve with stainless steel body

1 Valve body Carbon steelASTM A216 WCB - EN 1.0619


2 Full nozzle (seat) Stainless steelASTM 316 - EN 1.4401






5 Guide Cast iron GS450/10with bush ASTM 430F Tenifer or stainless steel ASTM 316 - EN 1.4401


6 Spring plate AVP Steel Stainless steelASTM 316 - EN 1.4401






Brass OT58 /AVP steel Stainless steelASTM 316 - EN 1.4401 / with bush in PTFE

10 Bonnet Cast iron GS 450/01 or Carbon steel ASTM A216 WCB - EN 1.0619




Caps

Center to face dimensions (mm)241bF-C / 242bF -C / 241bF-I

a b H95 67 215

100 84.5 265110 95 330115 116.6 375




DN OOutlet

mm

Disc lift h

mm.

Max set pressure

barg1” M 18 2.54 1”1/2 F 5.5 401”1/4 M 23 4.15 1”1/2 F 6.9 401”1/2 M 29 6.61 2” F 7.5 402” M 37 10.75 2”1/2 F 10.2 40

M= Male threadingGAS UNI 228 O NPT ASME B1.20.1F= Female threading


dn o

dn i

Note


DN I 1” M1”1/4 M1”1/2 M2” M

Besa®

240-10


Valvole di sicurezza Modello 241T-241bTSafety Valves Type 241T-241bT

series 240


Dimensions defining valve performances

Caps

Std. material legenda Description 241T-C / 241bT-C

Valve with lined carbon steel body

241T-I - 241bT-IValve with lined stainless steel body

1 Valve body 241T Carbon steel ASTM A216 WCB - EN 1.0619 lined with termoplastic material

Stainless steelASTM A351 CF8M - EN 1.4408 lined with termoplastic material

Valve body 241bT Carbon steel ASTM A216 WCB - EN 1.0619


2 Lined seat (241T) ASTM 316 - EN 1.4401 lined with thermoplastic materialFull nozzle (241bT) PTFE

3 Bellow PTFE PTFE4 Disc Stainless steel

tempered glass - PTFE - HastelloyStainless steeltempered glass - PTFE - Hastelloy






8 Spring Carbon steel Alloy steel




10 Bonnet Cast iron GS 450/01 o Carbon steel ASTM A216 WCB - EN 1.0619




Tight Cap H2 without lifting lever

241bT / 241Ten Flangepn16/pn16pn25/pn16pn40/pn16


a b a b H95 85 94.5 82.9 215

100 105 99.5 104.5 265110 115 109 116 330117 140 117.2 142.6 375120 150 121.3 151.2 420136 172 139.8 175.4 525173 197 157.8 201.6 600188 220 179.4 227.7 655198 246 202.6 254.9 655216 288 223.2 296.5 780

DN IInlet



DN OOutlet

mm

Disc lift h

mm.

Max set pressure

barg(1) 20-3/4” 18 2.54 40-1”1/2 5.5 4025-1” 23 4.15 40-1”1/2 6.9 1032-1”1/4 29 6.61 50-2” 7.5 1040-1”1/2 37 10.75 65-2”1/2 10.2 1050-2” 46 16.62 80-3” 13.5 1065-2”1/2 60 28.27 100-4” 17.0 1080-3” 74 43.00 125-5” 21.5 10100-4” 92 66.48 150-6” 27.6 10125-5” 98 75.43 200-8” 29.4 10150-6” 125 122.72 250-10” 37.5 10

(1) only type 241bT

Tigh Cap H4 with packed lifting lever

TYPE 241bT valve withPTFE full nozzle

dn o

dn i

dn o

dn iNote


DN I20253240506580100125150

TYPE 241T thermoplastic material body lining

Besa®

240-12


Valvole di sicurezza Modello 241TbSafety Valves Type 241Tb

series 240


Dimensions defining valve performances

Caps

Std. material legenda Description 241Tb-C

Valve with lined carbon steel body

241Tb-IValve with lined stainless steel body

1 Valve body Carbon steel ASTM A216 WCB - EN 1.0619 lined with termoplastic material

Stainless steelASTM A351 CF8M - EN 1.4408 lined with termoplastic material

2 Lined seat ASTM 316 - EN 1.4401 lined with thermoplastic materialFull nozzle PTFE

3 Bellow PTFE PTFE4 Disc Stainless steel

tempered glass - PTFE - HastelloyStainless steeltempered glass - PTFE - Hastelloy






8 Spring Carbon steel Alloy steel




10 Bonnet Cast iron GS 450/01 o Carbon steel ASTM A216 WCB - EN 1.0619




Tight Cap H2 without lifting lever

241Tben Flangepn16/pn16pn25/pn16pn40/pn16


a b a b H95 85 94.5 82.9 215

100 105 99.5 104.5 265110 115 109 116 330117 140 117.2 142.6 375120 150 121.3 151.2 420136 172 139.8 175.4 525173 197 157.8 201.6 600188 220 179.4 227.7 655198 246 202.6 254.9 655216 288 223.2 296.5 780

DN IInlet



DN OOutlet

mm

Disc lift h

mm.

Max set pressure

barg25-1” 23 4.15 40-1”1/2 6.9 1032-1”1/4 29 6.61 50-2” 7.5 1040-1”1/2 37 10.75 65-2”1/2 10.2 1050-2” 46 16.62 80-3” 13.5 1065-2”1/2 60 28.27 100-4” 17.0 1080-3” 74 43.00 125-5” 21.5 10100-4” 92 66.48 150-6” 27.6 10125-5” 98 75.43 200-8” 29.4 10150-6” 125 122.72 250-10” 37.5 10

Tigh Cap H4 with packed lifting lever

dn o

dn i

Note


DN I20253240506580100125150

TYPE 241Tb valve with thermoplastic material body lining and PTFE full nozzle

Besa®

240-14


Tabella delle Portate / Flow rate table

series 240

I diagrammi che seguono rappresentano la tendenza del coefficiente di efflusso Kd, relativo a

ciascuna serie di valvole, secondo il rapporto pb/p0

240

pb/p0 Kd Serie 240

0,2 0,81 Kd certificato medio

0,25 0,8

0,3 0,78

0,35 0,77

0,4 0,75

0,45 0,73

0,5 0,71

0,55 0,68

0,6 0,66

0,65 0,64

0,7 0,62

130

pb/p0 Kd

0,2 0,41 Serie 130


0,45 0,39

0,6 0,37

0,7 0,36

0,3

0,2

0,1

250-260 Serie 250-260

pb/p0 Kd Kd certificato medio

0,2 0,85

0,25 0,84

0,3 0,81

0,35 0,79

0,4 0,77

0,45 0,75

0,5 0,73

0,55 0,7

0,6

0,65

0,7

249

pb/p0 Kd Serie 249


0,25 0,84

0,3 0,83

0,35 0,82

0,4 0,81

0,45 0,79

0,5 0,77

0,55 0,75

0,6 0,73

0,65 0,71

0,7 0,69

139

pb/p0 Kd Serie 139


0,25 0,48

0,3 0,47

0,35 0,46

0,4 0,45

0,45 0,44

0,5 0,42

0,55 0,4

0,6 0,39

0,65 0,37

0,7 0,36

0

0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

0,9

0 0,2 0,4 0,6 0,8

pb/p0

cert

ifie

d K

d

Serie1

0

0,05

0,1

0,15

0,2

0,25

0,3

0,35

0,4

0,45

0 0,2 0,4 0,6 0,8

pb/p0

cert

ifie

d K

d

Serie1

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0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

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pb/p0

cert

ifie

d K

d

Serie1

0

0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

0,9

0 0,2 0,4 0,6 0,8

pb/p0

cert

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d K

d

Serie1

0

0,1

0,2

0,3

0,4

0,5

0,6

0 0,2 0,4 0,6 0,8

cert

ifie

d K

d

Serie1

pb/p0

valvole ad alzata limitataal fine di ottenere una portata non eccessivamente superiore al valore richiesto, è possibile limitare l’alzata dell’otturatore e, di conseguenza, ridurre il coefficiente di efflusso Kd.

restricted lift valvesin order to limit an excessive discharged flow rate, it is possibile to restrict the disc lift, obtaining a lower coefficient of discharge Kd.

aria/air a 25°C

kg/h145196243290382475565657837

1.0221.1951.3681.5421.7161.8902.2392.5892.9393.2903.6423.9954.3484.7025.0575.4135.7696.1276.4856.8437.203

steam

kg/h94

123153185241300355412522634739843947

1.0511.1541.3601.5661.7711.9772.1832.3872.5932.7993.0063.2133.4193.6253.8304.0384.246

acqua/water a 25°C

kg/h6.2418.1739.728

11.06713.55515.65217.50019.17122.13724.75027.11329.28531.30833.20735.00338.34541.41844.27846.96449.50551.92254.23156.44658.57760.63462.62364.55166.42368.24470.017

aria/air a 25°C

kg/h242331410488643788936

1.0881.3671.6681.9512.2352.5182.8023.0863.6564.2274.7995.3725.9476.5227.0997.6788.2578.8389.420

10.00310.58811.17411.761

steam

kg/h156208259312405498589683865

1.0361.2071.3771.5461.7161.8852.2212.5572.8923.2293.5653.8974.2334.5714.9095.2455.5825.9196.2546.5936.934

acqua/water a 25°C

kg/h9.922

12.99315.46617.59521.55024.88427.82230.47835.19339.34843.10446.55849.77352.79255.64860.96065.84670.39374.66378.70382.54586.21689.73893.12696.39699.558

102.623105.599108.494111.313

aria/air a 25°C

kg/h371509632752993

1.2351.4881.7302.1732.6533.1033.5534.0044.4554.9075.8126.7207.6298.5419.454

10.36911.28712.20613.12814.05114.97615.90416.83317.76418.697

steam

kg/h239319399481625781936

1.0861.3561.6471.9182.1892.4592.7282.9973.5314.0654.5995.1335.6676.1966.7307.2677.8058.3398.8759.4109.943

10.48211.023

acqua/water a 25°C

kg/h16.15221.15125.17628.64135.08040.50845.29049.61357.28964.05270.16675.78881.02285.93790.58699.233

107.185114.587121.539128.115134.369140.346146.078151.593156.916162.063167.053171.897176.609181.199

aria/air a 25°C

kg/h583814

1.0121.2061.6412.0392.4232.8173.5874.3185.0515.7846.5187.2537.9889.462

10.93912.41913.90315.39016.88018.37319.87021.37022.87324.37925.88927.40128.91730.436

acqua/water a 25°C

kg/h24.96532.69238.91444.27054.22262.61170.00276.68588.54999.002

108.452117.143125.232132.829140.015153.380165.672177.112187.858198.021207.689216.926225.786234.311242.537250.494258.206265.694272.977280.071

aria/air a 25°C

kg/h884

1.2361.5641.8352.5003.1073.7454.3555.5446.6757.8078.940

10.07511.21012.34714.62516.90819.19621.48923.78826.09128.39930.71333.03135.35437.68240.01542.35344.69647.044

steam

kg/h570776988

1.1741.5741.9652.3562.7333.4604.1464.8285.5086.1876.8657.5428.885

10.22811.57112.91714.26015.59016.93518.28419.63820.98322.33023.67725.01726.37427.736

acqua/water a 25°C

kg/h42.47455.62066.20675.31892.249

106.522119.097130.466150.651168.435184.513199.298213.060225.986238.211260.950281.861301.326319.607336.899353.346369.061384.135398.639412.635426.171439.292452.032464.423476.492

aria/air a 25°C

kg/h1.4472.0292.5733.1224.1905.2866.2837.4099.433

11.35713.28215.21017.14019.07321.00724.88228.76732.65936.56140.47144.38948.31752.25256.19760.14964.11068.08072.05776.04380.037

steam

kg/h933

1.2741.6241.9982.6383.3433.9524.6505.8867.0538.2149.372

10.52711.68012.83115.11717.40219.68621.97624.26126.52328.81231.10833.41135.70037.99140.28342.56344.87247.188

acqua/water25°Ckg/h

3.8225.0055.9586.7788.3029.587

10.71811.74113.55815.15916.60617.93619.17520.33821.43923.48525.36727.11928.76430.32031.80133.21534.57235.87737.13738.35539.53640.68241.79842.884

bar0,250,50,75

11,52

2,5345678910121416182022242628303234363840

pressione di taratura p /set pressure p

kg/h376511639772

1.0331.2521.5241.7682.2382.6823.1233.5644.0034.4414.8795.7486.6177.4868.3579.226

10.08610.95611.82912.70513.57514.44715.31816.18517.06317.944

dn 20 - do 18 mm dn 25 - do 23 mm dn 32 - do 29 mm dn 40 - do 37 mm dn 50 - do 46 mm dn 65 - do 60 mm

acqua/water

aria/air

vapore d’acqua sat. /

sat. steamacqua/water

aria/air



aria/air



aria/air



aria/air



aria/air


sat. steam

pressione di taratura p /set pressure p

bar0,250,50,75

11,52

2,5345678910121416182022242628303234363840

acqua/water a 25°Ckg/h

64.60884.605

100.706114.567140.321162.032181.160198.453229.157256.208280.664303.154324.088343.749362.346396.934428.743458.350486.158512.461537.479561.384584.312606.375627.664648.254668.212687.590706.439724.797

aria a 25°Ckg/h

2.2893.2014.0494.8256.5668.2749.830

11.42714.34917.27520.20423.13726.07329.01231.95437.84943.75749.67955.61361.56167.52173.49579.48285.48191.49497.519

103.557109.607115.670121.745

vapore

kg/h1.4772.0102.5563.0894.1355.2336.1837.1718.954

10.72912.49414.25616.01317.76719.51822.99526.47129.94533.42836.90440.34543.82747.31950.82154.30357.78961.27564.74368.25571.778


99.862130.770155.658177.081216.888250.446280.011306.740354.198396.009433.810468.572500.928531.318560.061613.523662.688708.450751.433792.087830.756867.705903.144937.246970.151

1.001.9771.032.8241.062.7771.091.9101.120.286

aria a 25°Ckg/h

3.8105.1246.4687.695

10.14912.60915.19417.42022.17926.70231.22935.76240.30044.84249.39158.50267.63476.78685.95995.152

104.365113.598122.852132.125141.418150.731160.063169.415178.786188.177

vapore

kg/h2.4583.2184.0834.9266.3917.9749.557

10.93213.84016.58419.31222.03524.75127.46230.16835.54240.91546.28551.66857.04162.36067.74173.13978.55383.93489.32394.710

100.071105.499110.945


113.313148.384176.623200.932246.100284.178317.726348.054401.904449.347492.239531.683568.397602.880635.495696.158751.944803.870852.642898.772942.649984.574

1.024.7871.063.4821.100.8191.136.9321.171.9331.205.9201.238.9771.271.175

aria a 25°Ckg/h

4.2465.8147.3398.732

11.51614.30817.00119.76625.16630.29835.43540.57845.72750.88256.04366.38276.74387.12897.537

107.968118.422128.899139.398149.921160.465171.033181.622192.233202.867213.522

vapore

kg/h2.7403.6514.6335.5907.2529.048

10.69412.40515.70518.81721.91425.00328.08531.16134.23140.32946.42652.51958.62764.72370.75976.86582.99089.13395.239

101.353107.466113.550119.709125.888


184.352241.410287.353326.902400.388462.338516.916566.259653.869731.055800.838865.010924.741980.842

1.033.9041.132.5981.223.3581.307.8381.387.1861.462.2361.533.6211.601.8301.667.2541.730.2071.790.9521.849.7041.906.6491.961.9442.015.7252.068.109

aria a 25°Ckg/h

6.9099.460

11.74713.98818.73623.27827.66032.15840.94449.29357.65166.01974.39682.78291.178

107.998124.856141.752158.685175.656192.664209.709226.791243.910261.066278.258295.486312.750330.049347.384

vapore

kg/h4.4585.9417.4178.954

11.79914.72117.39920.18225.55030.61535.65240.67945.69350.69655.69265.61375.53285.44595.383

105.300115.120125.054135.019145.013154.948164.895174.840184.737194.758204.810


321.215420.632500.684569.594697.636805.577900.675986.650

1.139.3021.273.7911.395.3801.507.1941.611.2681.709.0191.801.4741.973.4382.131.5792.278.7772.417.0322.547.8012.672.1822.791.0302.905.0233.014.7143.120.5543.222.9253.322.1463.418.4923.512.1993.603.473

aria a 25°Ckg/h

12.25716.48320.80424.37332.64740.56048.19556.03370.36485.888

100.451115.031129.627144.240158.869188.177217.550246.989276.493306.063335.698365.397395.161424.989454.881484.837514.855544.936575.078605.283

vapore

kg/h7.909

10.35113.13615.60220.55825.65030.31635.16544.51953.34462.12170.87979.61588.33497.039

114.325131.606148.880166.195183.476200.585217.895235.258252.671269.982287.313304.641321.886337.347356.862


471.941618.009735.624836.870

1.024.9931.183.5851.323.3071.449.6241.673.9051.871.5022.050.1452.214.4262.367.3372.510.9552.646.7952.899.4503.131.7973.348.0663.551.1963.743.3263.926.0714.100.6874.268.1704.429.3324.584.8374.735.2434.881.0235.022.5785.160.2565.294.360

aria a 25°Ckg/h

17.68824.21730.07435.81047.96659.59270.81082.326

103.382126.190147.587169.008190.453211.923233.416276.476319.633362.886406.235449.680493.220536.856580.586624.411668.329712.340756.444800.640844.927889.305

vapore

kg/h11.41315.20918.98822.92430.20537.68644.54151.66664.51478.37591.270

104.139116.974129.783142.573167.970193.361218.741244.180269.570294.708320.140345.650371.234396.668422.131447.590472.928498.581524.316

dn 80 - do 74 mm dn 100 - do 92 mm dn 125 - do 98 mm dn 150 - do 125 mm dn 200 - do 165 mm dn 250 - do 200 mm

acqua/water

aria/air



aria/air



aria/air



aria/air



aria/air



aria/air


sat. steam

Besa®

240-15

nota 1: le portate sono state calcolate secondo le formule indicate dalla norma en 4126-1 e con una sovrapressio-ne pari al 10% della pressione di taratura p (0.1 bar se p< 1 barg). nota 2: i valori intermedi possono essere approssimativamente ricavati per interpolazione lineare. nota 3: le portate indicate nella presente tabella non vincolano in alcun modo besa®, la quale si riserva di eseguire sempre il dimensionamento fluidodinamico di ogni valvola di sicurezza, indicando il valore della portata calcolata sui documenti applicabili (specifica di prodotto nel caso di offerta; Certificato di collaudo nel caso di ordine; modulo di calcolo ove applicabile)

note 1) Flow rates have been calculated according to en 4126-1 rules with overpressure 10% (0,1 bar if p<1 barg)note 2) approximate intermediate values can be obtained by linear interpolation note 3) Flow rates given in this table are undemanding; besa® will always check fluid mechanical sizing of each safety valve, and indicate calculated flow rate in every relevant document (specification sheet in case of offer, inspection certificate in case of order, calculation sheet when applicable)

il diagramma rappresenta la tendenza del coefficiente di efflusso Kd, secondo il rapporto pb/p0 (aeriformi)

diagram showing coefficient of discharge Kd trend vs. pb/po ratio (gaseous)

pb= contropressione (bar a)po= pressione di scarico (bar a)

pb= backpressure (bar abs)po= upstream relieving pressure (bar abs)

Besa series 240GOST Flanged connections EN (PN 16-25-40) o ANSI (CL 150 e 300). Different execution...

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Transcript of Besa series 240GOST Flanged connections EN (PN 16-25-40) o ANSI (CL 150 e 300). Different execution...