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Pressure switches

Pressure switches
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Pressure switches

Product catalog summary
Introduction
The document provides an overview of pressure switches used in industrial and automotive applications, highlighting their role in converting pressure values into electrical signals for machine cycles or signaling conditions like leaks or alarms. It categorizes pressure switches into Normally Open (NO), Normally Closed (NC), and Switching Contacts (SPDT), with calibration achieved through a set screw adjusting a spring.
Specifications and Calibration
Pressure switches are available in fixed and adjustable settings, with adjustable switches set using a regulation nut. Safety pressure and maximum operating pressure are defined to ensure structural integrity and operational safety.
Electrical Load and Assembly
Electrical characteristics are specified for each pressure switch series. A relay is recommended for slow pressure variations to prevent exceeding current limits. Vertical assembly is advised to avoid particle accumulation, and caution is advised against impacts or vibrations.
Protection and Special Configurations
Pressure switches can be protected with caps and connectors, offering IP54 or IP65 protection levels. Special configurations, such as pre-wired switches or stainless steel cases, are available upon request.
Certifications
The products comply with European Directives, including the Low-Voltage Directive and Electro-Magnetic Compatibility Directive, and bear the CE mark. Declarations of Conformity are available at the company's premises.
General Overview
The Euroswitch 2014 pressure switch catalogue details various models, specifications, operational parameters, and technical features. The company reserves the right to modify product features or discontinue production without notice.
Specifications
Each model is described with maximum overpressure and working pressure limits, setting ranges, tolerances, and electrical contact conditions. Materials include brass or zinc-plated steel cases and silver-plated contacts.
Technical Features
Technical specifications include maximum switched voltage and current, maximum fluid temperature, mechanical working life, and action type. Protection degree and pollution situation are noted, with some models offering adjustable hysteresis.
Models and Variants
Models include Mini Pressure Switch (25R, 26R), Fixed Setting Pressure Switch (26, 266), Diaphragm Pressure Switch (27), and Piston Pressure Switch (28, 30, 31), each with specific part numbers, setting ranges, and tolerances.
Key Parameters
Maximum overpressure limits range from 50 to 800 bar, with working pressures from 20 to 450 bar. Electrical characteristics vary, with some models supporting up to 250V and 2A. Mechanical working life is generally 105 operations.
Best Practices
Users are encouraged to refer to the 'General Notes' section of the catalogue for correct usage guidelines.
Overview
This document provides technical specifications and guidelines for various pressure and vacuum switches manufactured by Euroswitch, including details on product features, electrical characteristics, mechanical life, and protection standards.
Specifications
  • Pressure Switches: Piston pressure switches have a maximum overpressure limit of 900 bar, anodized aluminum casing, SPDT silver contacts, and a maximum fluid temperature of 100°C.
  • Vacuum Switches: Maximum overpressure limit of 15 bar and working pressure of 10 bar, with different thread types and a mechanical life of 106 operations.
  • Diaphragm Vacuum Switch: Brass case, silver contacts, fixed hysteresis of about 0.15 bar, supporting a maximum fluid temperature of 80° to 120°C.
Procedures and Recommendations
  • Refer to the general notes in the Euroswitch pressure switches catalogue, edition 2014, for correct usage.
  • The company reserves the right to modify technical features or halt production without notice.
Standards and Compliance
  • Products conform to EN 60730-I standards.
  • Protection degrees vary from IP00 to IP65 depending on the model and additional covers or connectors used.
Additional Features
  • Custom versions, including ATEX certified versions and different pressure settings, are available upon request.
  • Differential clogging indicators detect filter clogging in hydraulic systems, with adjustable differential pressure ranges and maximum pressures.
See more

Catalog excerpts

Pressure switches-1

Pressostati Pressure switches

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Pressure switches-3

Pressostati Pressure switches Certificazioni Certifications Introduzione Introduction Esempio lettura codice Sample code reading Guida alla selezione della membrana/tenuta Guide to selecting the diaphragm/seal Versioni cablate con connettore a richiesta Wiring harness versions with connector on request Cappucci e connettori di protezione Protection cap and connectors Connettori integrati Integrated connectors Interruttore stop idraulico Brake switch Pressostato con contatti in scambio (SPDT) Pressure switch with SPDT contacts Pressostato con contatti in scambio (SPDT) Pressure switch with SPDT...

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Pressure switches-4

Pressostati Pressure switches Pressostato a pistone ≤ 250V Piston pressure switch ≤ 250V Pressostato a membrana ≤ 250V Diaphragm pressure switch ≤ 250V Pressostato a pistone ≤ 48V Piston pressure switch ≤ 48V Pressostato a membrana ≤ 48V Diaphragm pressure switch ≤ 48V Pressostato a membrana, terminali a vite Diaphragm pressure switch, screw terminals Pressostato a membrana per alta pressione - max pressione di sicurezza 600 bar Diaphragm pressure switch - over pressure limit 600 bar Pressostato a membrana ≤ 48V con attacco femmina Diaphragm pressure switch ≤ 48V female thread Pressostato a pistone...

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Pressure switches-5

Pressostati Pressure switches Vuotostato ≤ 48V Vacuum switch ≤ 48V Vuotostato ≤ 250V Vacuum switch ≤ 250V Vuotostato a membrana con contatti in scambio Diaphragm vacuum switch - SPDT contacts Indicatori d’intasamento differenziali Differential clogging indicators Indicatore elettrico differenziale Electrical differential pressure clogging indicator Indicatore elettrico differenziale Electrical differential pressure clogging indicator Indicatore elettrico girevole Electrical differential pressure clogging indicator with rotating system Indicatore elettrico di pressione differenziale con termostato...

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Pressure switches-6

Sistema di Gestione per la Qualiti VU Fb,*irftiA-. K - [TffB7fiA|^ MAKASTN" IrNl l'i i':;.:t:,u I'mi- v prtiduJ Lurh di seniLrii di lin ellu,, ■ ■ —I.:!: :.:■<'. /.wjfiiMvruijt tiiut f>nnt\trtnm i'f Jnvf wrT>jir>, fTi'H.>i*rr vu-j'/i-fii^ i ^infirm -.■ '!■>■• ■-. trtnjifnttiirr-n-ir-. thrrmvatulit. ami ratal ina inun. Sistema di Gestione per la Qualita UNI EN ISO 9001 -2008 Qualify Management System UNI EN ISO 9001-2008 (ISO SisLcmn di Gcslionc Ambientalc »IUWi dl l*miMi,JlurJI IfrmuiLjl i u -umori di velnrJU t ri>ta/i£ini'. ^nmi di KSllUlUTA, ItUnrtli^iLi, ultLdlurj c ccrlljtidn di CEHnpniicnti...

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Pressure switches-8

Introduzione Introduction Introduzione Nelle applicazioni industriali ed automotive si richiede frequentemente che il raggiungimento di un valore di pressione, precedentemente impostato, venga trasformato in un segnale elettrico, utilizzato per dare inizio al ciclo macchina oppure per segnalare una determinata situazione. (es. perdite nell’impianto, allarmi, etc.). Queste operazioni sono generalmente gestite da componenti, tarati in funzione dell’applicazione, che prendono il nome di PRESSOSTATI. Ne esistono sostanzialmente tre tipologie: - con contatti elettrici (SPST) NORMALMENTE APERTI (N.A.)...

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Pressure switches-9

Taratura L’Azienda offre pressostati con taratura regolabile e fissa. Nei modelli a taratura regolabile, per la regolazione alla pressione desiderata, agire sul grano di regolazione facendo attenzione a non mandare a pacco la molla. La pressione aumenta ruotando in senso orario. Dopo aver effettuato la taratura è opportuno bloccare la vite con un collante. I pressostati a taratura regolabile possono essere tarati in fabbrica al valore di pressione richiesto dal cliente, tale valore indica il punto di intervento per pressione crescente. A richiesta la taratura può essere effettuata con pressione...

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Pressure switches-10

Introduzione Introduction I prodotti sono progettati nel rispetto delle Direttive e delle Norme vigenti nella Comunità Europea, sono marcati CE in base alla seguente classificazione: a) Prodotti funzionanti a tensione tra 50 e 1000 V in a.c. e tra 75 e 1500 V in d.c. Risultano conformi alle direttive: - 2006/95 (DBT - Direttiva di bassa tensione) e sono rispondenti alle Norme EN 60730-1 con le relative parti II. - 2004/108 CEE (EMC - Direttiva per la Compatibilità Elettromagnetica) e rispondenti alle Norme EN 60730-1 con relative parti II. b) Prodotti funzionanti a tensione di 50V in a.c. e di...

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Esempio lettura codice Sample code reading Codice - Part Number Corpo in acciaio zincato Zinc plated steel case contatto elettrico - electrical contact norm. aperto norm. open norm. chiuso norm. closed Corpo in ottone brass case norm. aperto norm. open norm. chiuso norm. closed 1/8" Gas conico 1/4" Gas conico M10x1K conico M12x1,5 Cilindrico 1/8" NPT 1/4" Gas cilindrico 1/8" Gas Cilindrico Gola UNI 5711 M10x1 cilindrico Campo di regolazione Setting range bar contatto elettrico - electrical contact 1/8” Gas conical 1/4” Gas conical M10x1K conical M12x1,5 cylindrical 1/8” NPT 1/4” Gas cylindrical...

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Pressure switches-12

Guida alla selezione della membrana/tenuta Guide to selecting the diaphragm/seal Codice membrana/tenuta - Diaphragm/seal material code Classificazione secondo ASTM-D 1418/94 - According to ASTM-D 1418/94 1 copolimero butadiene acrilonitrile - copolymer butadiene acrylonitrile gomma fluorurata polimetilene - fluoro rubber of the polymethylene terpolimero etilene propilene - terpolymer ethylene propylene polimero cloroprene - polymer chloroprene silicone - sylicon copolimero butadiene acrilonitrile - copolymer butadiene acrylonitrile Hidrogenated Tabella di selezione del materiale della membrana/tenuta...

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Pressure switches-13

Versioni cablate con connettore a richiesta Wiring harness versions with connector on request Cablaggio resinato con connettore a richiesta Wiring harness sealed by resin with connector on request Esempi di connessioni disponibili Available connections example

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Cappucci e connettori di protezione Protection cap and connectors 3015001 Cappuccio di protezione in gomma Rubber protective cup 66 Cappuccio di protezione in plastica Plastic protective cup IP65 cod. 3900001 Per/for MOD. 30-31-32-35-37-40-41-41V 41BC-42-506-700 ø ESTERNO CAVO 6-8/8-10 EXTERNAL CABLE ø 6-8/8-10 SERRACAVO CABLE CLAMP Connettore di protezione Protective connector IP65 cod. 3900003 Per/for MOD. 27-28 GUARNIZIONE WASHER ø ESTERNO CAVO 6-8/8-10 EXTERNAL CABLE ø 6-8/8-10 SERRACAVO CABLE CLAMP Connettore di protezione Protective connector ø ESTERNO CAVO 6-8/8-10 EXTERNAL CABLE ø 6-8/8-10...

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