Serie UB25Flussostato in linea — corpo in acciaio inox 316 pieno
Interruttore a pistone ad azionamento magnetico con corpo pieno lavorato in acciaio inox 316 — pressione nominale 200 bar, gestisce liquidi fino a 90 °C. Ideale per la pressurizzazione di acqua calda/fredda, impianti di acqua calda a gravità, docce di sicurezza e altre applicazioni ad alta affidabilità.
Caratteristiche
- Adatto a tubi da 25 NB (1 pollice)
- Montaggio versatile in qualsiasi posizione
- Pressione nominale 200 bar / 2900 psi
- Commuta a portate molto basse
- Custodia IP67 resistente agli agenti atmosferici
- Corpo metallico pieno lavorato in acciaio inox 316
- Elevata portata nominale
- Gestisce liquidi fino a 90 °C
- Punto di commutazione a 1.5 L/min con flusso in lenta crescita, come fornito (0.23 L/min con il fermo del pistone non magnetico)
Il corpo dell’UB25 è lavorato da acciaio inox 316 pieno. All’interno, un pistone libero di scorrere (polipropilene rinforzato con fibra di vetro; nylon nei modelli Dieseline -D) viene spinto indietro dal flusso finché il liquido lo aggira. Il pistone aziona un interruttore ad accoppiamento magnetico e viene riportato nella posizione di riposo dalla repulsione magnetica quando il flusso si arresta — nella zona bagnata non ci sono molle. Il pistone e la custodia elettrica sono in polipropilene rinforzato con fibra di vetro. Ingresso maschio BSPT da 25 mm (1") e uscita femmina BSPT da 1"; tre moduli elettrici disponibili, più un modello Dieseline -D.
Ulteriori informazioni
- Scheda tecnica UB25(versione in inglese)
- Istruzioni di installazione UB25(versione in inglese)
- Download modello solido 3D
Selezioni il modello
Ordini — modelli disponibili
Limiti di funzionamento
Dimensioni
Warning: Electrical Safety
The UB25 Series flow switch is a mains voltage device. Death or serious injury may result if this switch is not correctly installed and operated. All electrical work on this switch must be performed by a fully qualified and licensed electrician.
Two Piston Retainers Supplied
The UB25 is supplied as standard with a magnetic piston retainer that allows the switch to be oriented in any required position in pipework; in vertical pipework flow can be either upward or downward through the switch. A non-magnetic piston retainer is also supplied with each switch — when this is fitted, the switch must be oriented vertically with flow passing upward through its body, and the flow rate required to actuate the switch is approximately 6.5 times lower (0.23 L/min rising and 0.18 L/min falling, ±15%, against 1.5 and 1.2 L/min as supplied). It is commonly used to enhance the sensitivity of the switch in gravity head applications such as boosting water pressure in gravity fed hot water systems.
Dieseline Model (-D)
Order the -D suffix (e.g. UB25-B-D) for the Dieseline model. The piston is glass reinforced polypropylene on standard models and nylon on Dieseline -D models. The solid 316 stainless steel body is suitable for neutral liquids such as hot or cold water, or oils.
Mounting & Pump Installation
The UB25 can be mounted in any orientation in the pipework, including upside down, in horizontal or vertical pipework. There is a direction of flow arrow on the electrical enclosure; the switch will not operate against a reversed flow. Pipework can be used to support the switch, or it can be screwed directly into valve manifolds or pump ports — use thread tape or sealant. Do not use this flow switch as a non-return valve. In the typical pressure boosting installation the switch is fitted to the pump discharge, with a Y strainer on the pump inlet and a non-return valve downstream of the flow switch.
Clean Fluid & Line Filtration
The UB25 contains a close fitting piston and should only be used where the process fluid is reasonably clean and free of entrained or suspended material. It should not be used with fluids containing large particulate matter, ferrous materials or fibrous matter. If the degree of contamination of the process fluid can’t be guaranteed, fit suitable line filtration to the system.
Servicing the Piston
To service the piston or to install the non-magnetic piston retainer, use long nosed pliers to remove the spring circlip in the outlet port of the switch. Press the piston back with your finger; it should pop out along with its three finned magnetic retainer. Ensure there are no pieces of iron scale adhered to the piston or retainer and that both parts are free of damage. Reassemble the switch and test it to ensure the piston is a free and smooth fit.
Typical Applications
Hot and cold water pressure boosting, gravity hot water system control, hot water circulation actuation, safety shower alarm sentinel, wash down pump control, solar hot water control, mains pressure boosting and constant pressure pump control.
Hazardous Areas
The UB25-B and UB25-C (including -D models) are simple apparatus under AS/NZS 60079.11 and may be used in a hazardous area only as part of an intrinsically safe circuit, connected through suitably certified associated apparatus. They are not Ex certified in their own right. The full conditions of use are given in the installation sheet. The UB25-R and UB25-R-D are not certified for use in hazardous areas and must not be installed in any area classified as hazardous under AS/NZS 60079.10 (Zone 0, 1, 2, 20, 21 or 22).
Manutenibilità
Completamente riparabile sul campo. Per la manutenzione del pistone, rimuovere l’anello elastico di arresto nella bocca di uscita; la maggior parte dei componenti dell’interruttore è disponibile in kit di ricambio. Il modulo elettrico si svita dal corpo in acciaio inox senza intervenire sulle tubazioni. Pistoni di ricambio (varianti per acqua e per gasolio), guarnizioni e moduli elettrici sono disponibili presso Kelco Engineering o il Suo distributore.
