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Safety valves general catalogue

Safety valves general catalogue
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Safety valves general catalogue

Product catalog summary
Company Overview
BESA® Ing. Santangelo S.p.A. specializes in designing and manufacturing safety valves for various industries, including heating, power generation, pharmaceuticals, shipbuilding, and petrochemicals. Established in 1946, the company adheres to European directives and standards, ensuring high-quality and certified products. BESA® provides comprehensive testing assistance and has expanded its market presence both nationally and internationally.
Certifications
BESA® safety valves comply with European directives 97/23/CE (PED) and 94/9/CE (ATEX), and standards such as EN 4126-1, EN 12516, ASME B16.34, API 520, and API 526. They are certified by bodies like PASCAL, ICIM, RINA, Germanischer Lloyd, and Bureau Veritas.
Safety Valve Functionality
Safety valves are critical components designed to protect pressurized equipment by automatically discharging fluids when a set pressure is exceeded, preventing pressure limits from being surpassed. The valve operates by balancing the force exerted by the process medium against a spring force.
Valve Selection Guide
The catalogue provides a detailed guide for selecting the appropriate valve series based on flow rate, connection type, and pressure requirements. It includes various series with specific flow rate and pressure capabilities.
Special Executions and Technical Information
The document includes sections on special valve constructions, technical notes, operating limits based on pressure/temperature ratios, and equations for valve sizing. It also covers reaction forces, pressure losses, and various valve configurations.
Material Specifications
Valve components are primarily made of stainless steel, with specific grades used for different parts. Other materials include carbon steel for springs and brass for pressure adjusting screws.
Design and Construction
The document outlines various valve components with detailed material specifications. Valves can be customized with different materials upon request and approval from the technical department.
Performance and Operating Conditions
The valves are designed to operate within a set pressure range from 0.2 to 40 bar, with specific overpressure and blowdown conditions. Flow rate tables for water, air, and steam are provided.
Flow Rate and Discharge Coefficients
Flow rates are provided for various media at different set pressures, with values calculated for overpressure conditions. Discharge coefficients (Kd) are given for different valve series.
Temperature and Pressure Ratings
The valves are rated for different temperature ranges depending on the material, from -196°C to +537°C. Body and bonnet materials include cast iron, carbon steel, and stainless steel.
Additional Features
Other features include resilient seal safety valves, valves with heating jackets, stellited sealing surfaces, and combined applications with rupture discs.
Specifications and Standards
The document outlines specifications for safety valves, including compliance with standards such as EN 1092-1, EN 1.7357, EN 1.4408, EN 4126-1, API RP 520, and ASME Section VIII Division 1.
Formulas and Calculations
Several formulas are provided for calculating flow rates, discharge areas, and reaction forces when safety valves are activated.
Valve Features and Components
The document describes various features of safety valves, including balancing/protection bellows, resilient seals, heating jackets, and stellited sealing surfaces.
Pressure Losses and Reaction Forces
Pressure losses in inlet and discharge pipes are critical for valve performance, with specific guidelines on allowable losses.
Combined Application of Safety Valves and Rupture Discs
BESA® safety valves are designed to be used in conjunction with rupture discs, which can be installed either upstream or downstream of the valve.
Contact Information
Besa®
Viale delle Industrie Nord, 1/A (Fraz. Premenugo), 20090 Settala - MI - Italy
Tel. +39-02.95.37.021 - Fax +39-02.95.37.93.42
Website: www.besa.it
Email: [email protected], [email protected], [email protected]
Document Information
Edition 2008 – Rev. 3 dated May 2013
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Catalog excerpts

Safety valves general catalogue-1

® Catalogo generale valvole di sicurezza Safety valves general catalogue

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Safety valves general catalogue-3

Profilo dell’Azienda / Company profile Certificazioni / Certifications Cos’è e a cosa serve una valvola di sicurezza / Safety valve description and employment Come funziona una valvola di sicurezza / How a safety valve works Guida alla selezione delle valvole / Valve selection guide - Serie / Series 130 valvole flangiate bassa portata / low flow rate flanged valves (max. p. = 40 barg) - Serie / Series 139 valvole filettate bassa portata / low flow rate threaded valves (max. p. = 500 barg) - Serie / Series 240 valvole flangiate e filettate alta portata / high flow rate threaded and flanged valves...

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Safety valves general catalogue-5

Profilo azienda/Company profile BESA® Ing. Santangelo S.p.A. progetta e produce valvole di sicurezza adatte allo scarico di aeriformi e liquidi. I principali settori di applicazione sono: calderaio, energetico, farmaceutico, navale e petrolchimico. Le valvole di sicurezza BESA® sono progettate, prodotte e selezionate in conformità alle direttive europee 97/23/CE (PED), 94/9/CE (ATEX) e alle norme EN 4126-1, EN 12516, ASME B16.34, API 520, API 526, e omologate/approvate dall’organismo PASCAL (direttiva PED), ICIM (direttiva Atex), RINA, Germanisher Lloyd e Bureau Veritas (settore navale), GOST...

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Safety valves general catalogue-6

Le valvole di sicurezza Besa® sono progettate, prodotte e selezionate in conformità alle direttive europee 97/23/CE (ped), 94/9/CE (ATEX) e alle norme EN 4126-1, EN 12516, ASME B16.34, API 520, API 526 e omologate/approvate dall’organismo PASCAL (direttiva PED), ICIM (direttiva ATEX), RINA, Germanisher Lloyd e Bureau Veritas (settore navale), GOST-RTN rostekhnadzor (mercato russo). BESA® safety valves are designed, manufactured and selected according to the with European directives 97/23/ CE (PED), 94/9/CE (ATEX), EN 4126-1, EN 12516, ASME B16.34, API 520, API 526 and certified/approved by pascal...

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Safety valves general catalogue-8

Cos’è e a cosa serve una valvola di sicurezza Safety valve description and employment La valvola di sicurezza è un accessorio di sicurezza destinato alla protezione delle attrezzature a pressione, contro il superamento dei limiti di pressione ammissibili; la valvola di sicurezza è, dunque, un dispositivo di scarico d’emergenza per fluidi in pressione, atto ad intervenire automaticamente al raggiungimento di un dato valore di pressione (pressione di taratura della valvola). A safety valve is an accessory which protects pressurised equipments from the overtaking of an admitted pressure limit, being...

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Safety valves general catalogue-9

Come funziona una valvola di sicurezza How a safety valve works 1) La pressione esercitata dal fluido di processo all’interno del corpo valvola, agisce sulla superficie dell’otturatore generando una forza F. 2) Quando tale forza F raggiunge un’intensità pari a quella della molla, posta all’interno della valvola e precedentemente regolata per compressione al valore di taratura, l’otturatore inizia a spostarsi dalla superficie di tenuta della sede/boccaglio ed il fluido di processo comincia a fuoriuscire (non si ha ancora la piena portata della valvola). 3) A questo punto, normalmente, la pressione...

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Safety valves general catalogue-11

Guida alla selezione della valvola / Valve selection guide Mod. / Type Tipo di connessione/ Tipo di cappello/ Connections Bonnet type Flangiata/ Filettata/ Aperto/ Chiuso/ Closed Flanged Threaded Open Tipo di boccaglio/ Nozzle type Pieno/ Mezzo/ Full Semi Massima press. di Norma costruttiva/ Aeriformi/ Liquidi/ taratura/ Maximum According to Gaseous Liquid set pressure EN 4126 API 526 Certificazioni/ Certifications Serie/ Series 130 valvole flangiate bassa portata / low flow rate flanged valves Mod. 131 ped - atex rina - gost r-rtn ped - atex rina - gost r-rtn ped - gost r-rtn ped - atex rina...

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Safety valves general catalogue-12

Tavola riassuntiva delle principali caratteristiche costruttive e di funzionamento Main fabrication and operating characteristics table Mod. 131 mezzo boccaglio 131b boccaglio pieno Tipo di cappello Certificati Cappello chiuso PED-ATEX(molla coperta) gost-RINA 132 mezzo boccaglio 132b boccaglio pieno Cappello aperto (molla scoperta) Connessioni Connessioni flangiate En e Ansi (per esecuzioni diverse, fare riferimento all’Ufficio Tecnico) Type 131 semi nozzle 131b full nozzle Bonnet type Closed (covered spring) Certifications PED-ATEXgost-RINA 132 semi nozzle 132b full nozzle Open PED-gost (uncovered...

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Safety valves general catalogue-13

Valvole di sicurezza Modello 131-132 Safety Valves Type 131-132 Legenda materiali std. Descrizione 131-G / 132-G Valvola con corpo in ghisa 1 Corpo Valvola 2 Sede 3 Otturatore 4 Sfera 5 Piattello Guida 6 Ralla Molla 7 Asta Dimensioni caratterizzanti le prestazioni fluidodinamiche 131-C / 132-C Valvola con corpo in acciaio al carbonio Acciaio al Carbonio Astm A216 Wcb - En 1.0619 Acciaio inossidabile Acciaio inossidabile Astm 316 - En 1.4401 Astm 316 - En 1.4401 Acciaio inossidabile Acciaio inossidabile Astm 420 - En 1.4028 Astm 420 - En 1.4028 Acciaio inossidabile Acciaio inossidabile Astm 420...

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Safety valves general catalogue-14

Valvole di sicurezza Modello 131-132 Safety Valves Type 131-132 Std. material legenda Description 1 Valve body 2 3 4 5 Dimensions defining valve performances 131-G / 132-G Valve with cast iron body 131-C / 132-C Valve with carbon steel body Carbon steel Astm A216 Wcb - En 1.0619 Seat Stainless steel Stainless steel Astm 316 - En 1.4401 Astm 316 - En 1.4401 Disc Stainless steel Stainless steel Astm 420 - En 1.4028 Astm 420 - En 1.4028 Ball Stainless steel Stainless steel Astm 420 - En 1.4028 Astm 420 - En 1.4028 Complete Guide Cast iron GS450/10 Cast iron GS450/10 with with bush bush Astm 430f...

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Safety valves general catalogue-15

Valvole di sicurezza Modello 131b-132b Safety Valves Type 131b-132b Legenda materiali std. Descrizione Dimensioni caratterizzanti le prestazioni fluidodinamiche 131b-C / 132b-C Valvola con corpo in acciaio al carbonio 1 Corpo Valvola 2 Boccaglio 3 Otturatore 4 Sfera 5 Piattello Guida 6 Ralla Molla 7 Asta 8 Molla 9 Vite di regolazione 131b-I Valvola con corpo in acciaio inossidabile Acciaio al carbonio ASTM A216 WCB - EN 1.0619 Acciaio inossidabile Astm 316 - En 1.4401 Acciaio inossidabile Astm 420 - En 1.4028 Acciaio inossidabile Astm 420 - En 1.4028 Ghisa GS450/10 con bussola in Astm 430f Tenifer...

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All Besa S.p.A. catalogs and technical brochures

  1. series 139
    series 139

    3  Pages

  2. series 250
    series 250

    3  Pages

  3. series 249
    series 249

    3  Pages

  4. series 130
    series 130

    4  Pages

  5. Certification PASCAL
    Certification PASCAL

    2  Pages

  6. Certification BUREAU VERITAS
    Certification BUREAU VERITAS

    1  Page

  7. Certification EAC
    Certification EAC

    3  Pages

  8. Certification CE ATEX
    Certification CE ATEX

    1  Page

  9. Certification CE PED
    Certification CE PED

    2  Pages

  10. Certification ICIM
    Certification ICIM

    2  Pages

  11. Use and Maintenance Manual
    Use and Maintenance Manual

    52  Pages

  12. Company brochure
    Company brochure

    8  Pages

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