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274

274
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274

Product catalog summary
Product Overview: The document describes the Series 274 float valve with 5 split pins, suitable for tanks. It is available with cylindrical GAS or conical NPT threads for sizes ranging from 3/8” to 4”. The valve features an AISI 430 stainless steel drive rod, which is round for threaded float balls and flat for sliding connection float balls.
Specifications: The standard version includes a brass seal seat integrated into the body, with an optional AISI 304 stainless steel seat for hard and corrosive waters. The sealing gasket is made of NBR rubber, with a silicone option available for sizes from 1”1/4 to 4” to handle corrosive fluids and increase the maximum working temperature to 130 ℃ (266℉). The float ball is sold separately.
Technical Information: The maximum recommended working pressure is 6 bar, and the maximum temperature is 80 ℃ (176 ℉). Materials used include CB752S, CW617N, CW614N, CW508L, AISI 430, NBR, and POM. The seal seat is brass, with an AISI 304 option available. Connections are cylindrical GAS (BSPP) or conical NPT upon request.
Product Variants: The document lists several variants of the Series 274, each with different arm shapes and materials, such as brass or bronze seats and bodies, and stainless steel arms of varying lengths and shapes.
Recommended Float Balls: The document provides recommended sizes for float balls made of plastic, copper, and AISI 304 stainless steel, with diameters ranging from 90 mm to 300 mm.
Manufacturer Information: The product is manufactured by ST SRL, located in Brandico, Brescia, Italy. Contact information and the company's website are provided for further inquiries.
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Catalog excerpts

274-1

5 split pins float valve 5 split pins float valve suitable for tanks, available with cylindrical GAS or conical NPT thread for sizes from 3/8” to 4”. Equipped with an AISI 430 stainless steel drive rod, round shaped for float balls with threaded connection and flat shaped for float balls with sliding connection. The standard version provides the brass seal seat formed in the body. On request the seal seat in AISI 304 stainless steel suitable for hard and corrosive waters is available. The sealing gasket is made of NBR rubber and for sizes from 1”1/4 to 4” the silicone seal is available on request for corrosive fluids and to increase the maximum working temperature to 130 ℃ (266℉). Float ball can be purchased separately. Technical informations Max recommended working pressure: 6 bar Max temperature: 80 ℃ (176 ℉) Materials: CB752S UNI EN 1982 - CW617N UNI EN 12165 - CW614N UNI EN 12164 - CW508L UNI EN 12166 - AISI 430 - NBR - POM Seal seat: brass - on request AISI 304 Sealing gasket: NBR rubber - on request silicone Connection: cylindrical GAS (BSPP) - on request conical NPT Rubinetto a galleggiante a 5 copiglie Rubinetto a 5 copiglie adatto per serbatoi e vasche di accumulo, disponibile con filetto di attacco GAS cilindrico oppure NPT conico per misure da 3/8” a 4”. Dotato di asta di azionamento in acciaio inox AISI 430 di forma tonda per sfere con attacco filettato e di forma piatta per sfere con attacco scorrevole. La versione standard prevede la sede di tenuta in ottone ricavata nel corpo. Su richiesta è disponibile la sede di tenuta in acciaio inox AISI 304 adatta per acque dure e corrosive. La guarnizione di tenuta è in gomma NBR e per le misure da 1”1/4 a 4” è disponibile su richiesta la guarnizione di tenuta in silicone per fluidi corrosivi e per aumentare la temperatura massima di lavoro a 130 ℃. Sfera galleggiante acquistabile a parte. Informazioni Tecniche Pressione massima di esercizio consigliata: 6 bar Temperatura massima: 80 ℃ Materiali: CB752S UNI EN 1982 - CW617N UNI EN 12165 - CW614N UNI EN 12164 - CW508L UNI EN 12166 - AISI 430 - NBR - POM Sede di tenuta: ottone - a richiesta AISI 304 Guarnizione di tenuta: gomma NBR - a richiesta silicone Connessione: filetto GAS cilindrico - a r

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274-2

SERIE 274 A1 BRASS SEAT Round stainless steel arm mm.175 - thread 1/4W SEDE DI TENUTA IN OTTONE Asta in acciaio inox tonda mm.175 - filetto 1/4W SERIE 274 A2 BRASS SEAT Flat stainless steel arm mm.300 SEDE DI TENUTA IN OTTONE Asta in acciaio inox piatta mm.300 SERIE 274 A3 BRASS SEAT - BRASS BODY Flat stainless steel arm Brass piston SEDE DI TENUTA IN OTTONE CORPO IN OTTONE Asta in acciaio inox piatta BRONZ SEAT - BRONZE BODY Flat arm Brass piston SEDE DI TENUTA IN BRONZO CORPO IN BRONZO Asta piatta SERIE 274 A4 BRASS SEAT Round stainless steel arm mm.250 - thread 1/4W SEDE DI TENUTA IN OTTONE...

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274-3

SERIE 274 A6 BRASS SEAT Flat stainless steel arm mm. 2x12 SEDE DI TENUTA IN OTTONE Asta in acciaio inox piatta mm. 2x12 Recommended size balls Sfere consigliate Overall dimensions (mm) Misure d’ingombro ST SRL reserve the right to change specifications without notice ST SRL si riserva di apportare modifiche senza prea

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274-4

ESSETI™ is a registered trademark of ESSETI SRL made and sold by ST SRL ST srl 25030 BRANDICO (BRESCIA) ITALY Via Enrico Fermi, 64 Tel. +39 030 975115 - +39 030 975891 Mail: [email protected] www.esseti-srl.com

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.