STM / ST

STM / ST

STM / ST

Product catalog summary
Overview: This document provides technical specifications and usage guidelines for single impeller pumps, suitable for industrial, civil, and agricultural applications, as well as heating and water supply systems. The pumps are designed for use with chemically pure liquids at temperatures not exceeding 80°C.
Pump Specifications: The pumps feature a horizontal axis with a brass impeller, a pump body, and a base support made of G20 cast iron. The shaft is made of AISI 416 stainless steel, and the mechanical seal is composed of ceramic/graphite. For models up to 1 HP, the impeller can be made of Noryl with 20% glass fiber.
Motor Specifications: The electric motor is a closed type with an external cooling fan and an IP44 protection degree. It has Class F insulation. Single-phase motors include a thermostat-controlled safety microswitch to prevent overheating, while protection for three-phase motors is the user's responsibility.
Voltage and Frequency: The STM models operate at 230-240 V, 50 Hz, and the ST models at 230/400 V, 50 Hz. Other voltage and frequency options are available upon request.
Dimensions and Weight: Detailed dimensions and weights for various models (STM 1 to ST 8) are provided, indicating the size and weight differences between models with bronze and Noryl impellers.
Performance Characteristics: The document includes performance data at 2850 RPM, with maximum suction depth at 7 meters. It provides detailed capacity and head metrics for each model, indicating their efficiency and power requirements.
Components and Materials: A comprehensive list of components and their materials is provided, including the pump body, impeller, mechanical seals, bearings, and motor components, highlighting the use of materials like G20 cast iron, brass, AISI stainless steel, and various plastics.
Additional Notes: The document notes that the figures provided are average production values and that the company reserves the right to make changes without prior notice.
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Catalog excerpts

STM / ST-1

STM / STElettropompe monogiranti Single impeller pumps Electropompes monoturbine. STM . ST . 1-2-3-4-5-6-7-8 Monofase Trifase N° curva 1 phase 3 phase N° curve monophase triphase N° curve O UTILIZZO: Queste elettropompe, ad una sola girante, con bocca di aspirazione assiale e bocca di mandata radiale, si prestano ottimamente ad usi industriali, civili, agricoli, negli impianti di riscaldamento e di approvvigionamento acqua, ecc. Nell'impiego di queste elettropompe e consigliabile l'uso di liquidi chimicamente e meccanicamente puliti, con temperatura non superiore agli 80°C. POMPA: Pompa ad asse orizzontale con girante in ottone, corpo pompa e supporto in ghisa G20, albero in acciaio INOX AISI 416 e tenuta meccanica in ceramica/grafite. La girante puo essere in Noryl, con fibra di vetro al 20%, nei modelli fino a 1 CV. MOTORE: Elettrico di tipo chiuso a ventilazione esterna, grado di protezione IP44. Classe di isolamento F. Nei motori monofase viene inserito un microtermostato in modo da evitare danni in caso di surriscaldamento. Per i motori trifase la protezione e a cura dell'utente. TENSIONI: STM: 230-240 V. 50 Hz; ST: 230/400 V. 50 Hz. A richiesta sono disponibili tensioni e frequenze diverse. O SCOPE OF APPLICATION: These electric motor-driven, single impeller pumps, with axial intake and radial delivery are particularly suited for use in industrial, civil and agricultural applications, as well as in heating and water supply systems. It is recommended that these pumps are used to carry only chemically pure liquids and free of foreign matter, with temperatures not higher than 80°C. PUMP: Horizontal axis pump with brass impeller, pump body and base support made of G20 cast iron, AISI 416 stainless steel shaft and mechanical seal made of ceramic/graphite. Impeller can also be made of Noryl with 20% glass fibre for models up to 1 HP! MOTOR: Electric, closed-type with external cooling fan, IP44 protection degree. Class F insulation. The standard versions of single-phase motors are fitted with termostat-controlled safety microswitches to avoid undesirable damages to the motor. The user must provide protection for three-phase electropumps. TENSION: STM: 230-240 V 50 Hz; ST: 230/400 V 50 Hz. Different voltage and frequency ratings are available on request. O UTILISATION : Ces electropompes, a une seule couronne ayantes une bouche daspiration axiale et une bouche de refoulement radiale, sont tres appropriees pour des utilisations industrielles, publiques, agricoles, pour les installations de chauffage, dapprovisionnement d'eau, ecc. Lors de 'utilisation de ces electropompes il est conseille demployer des liquides chimiquement et mecaniquement propres et a des temperatures ne depassant pas 80°C. POMPE: Pompe a axe horizontal avec couronne en laiton, corps de pompe et support en fonte G20, arbre en acier INOX AISI 416 et tenue mecanique en ceramique/graphite. Les couronnes peuvent etre en Noryl avec fibre de verre a 20% sur les modeles allant jusqua 1 CV. MOTEUR: Electrique de type ferme a ventilation exterieure, degre de protection IP44. Classe d'isolation F. Dans les moteurs monophases sont places des microtermostats de securite pour eviter de regrettables dommages au moteur. La protection pour les electropompes triphasees est a la charge de l'utilisateur. TENSION: STM: 230-240 V. 50 Hz; ST: 230/400 V. 50 Hz. Sur demande les tensions et les frequences peuvent etre differentes. DIMENSIONI IMBALLO in mm - PACKING DIMENSIONS in mm PESI - WEIGHT in KG. TIPO - TYPE

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STM / ST-2

CARATTERISTICHE DI FUNZIONAMENTO A 2850 GIRI/MIN TECHNICAL DATA AT 2850 R.P.M. POTENZA POWER PORTATA m3/h - CAPACITY m3/h HMMMMl PORTATA Lt/Min. - CAPACITY Lt/Min. [imijmijmiI PREVALENZA MANOMETRICA IN M.C.A. - TOTAL MANOMETRIC HEAD METRES Altezza massima di aspirazione: 7 metri. - Max suction depth: 7 metres. 70 I valori descritti si intendono di produzione media. La Ditta si riserva di apportare qualsiasi variazione senza obbligo di preavviso. The figures in the tables are averages for production models. The Company reserves the right to carry out changes of any kind without prior notice. ^.Conforto^...

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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.