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Handweel Gearbox
Handweel Gearbox
The document provides comprehensive technical information and instructions for the GBD series handwheel gearbox, designed for manual operation of butterfly and ball valves with pneumatic actuators. It covers specifications, maintenance guidelines, and installation procedures.
The GBD series gearboxes are declutchable and intended for manual operation during system installation and testing. They can be mounted directly on most rack & pinion style pneumatic actuators without a distancer. Key specifications include:
- Gear ratios from 1:36 to 1:62.
- Maximum output torque from 300 Nm to 5,500 Nm.
- Protection grade of IP65 and operating temperature range of -20°C to +80°C.
The gearboxes are made from materials such as stainless steel, aluminum polyester coated, carbon steel, and sintered bronze, ensuring durability and corrosion resistance.
Minimal maintenance is required, with checks recommended three months after commissioning and annually thereafter. Key tasks include:
- Checking bolts on the gearbox and valve flange.
- Performing test runs every six months.
- Inspecting for grease leakage.
Uninstalled gearboxes should be stored in safe, dry environments to prevent accidents and corrosion. Long-term storage requires periodic checks for corrosion and application of anti-corrosion agents. During handling, avoid dropping the gearbox and ensure it is lifted correctly.
The GBD gearbox is intended for manual operation in case of actuator failure. Installation involves ensuring alignment of the gearbox and valve, securing with nuts and rings, and using gaskets or liquid seals in humid environments. The gearbox is delivered in a closed position unless specified otherwise.
Ensure the gearbox is not overloaded during use by verifying valve size and required torque. The gearboxes are designed solely for manual operation.
The document also covers the GBSS, GBXSS, and GBFC series, designed for use with butterfly and ball valves and suitable for both pneumatic and electric actuators.
- The GBD model is a declutchable manual override quarter turn gearbox for double-acting actuators, delivered in automatic mode and switchable to manual mode.
- The GBSS series features a static electricity powder-coated aluminum alloy body for corrosion and wear resistance.
- The GBXSS series is made entirely of stainless steel, suitable for hygienic environments.
- The GBFC series includes an integrated limit switch for visibility and ease of locking.
- Switching from automatic to manual mode involves pulling the locking screw and lowering the clutch lever by 90 degrees.
- Manual operation involves turning the handwheel clockwise to close the valve and counter-clockwise to open it.
- Adjustment screws ensure the valve reaches fully open or closed positions.
- Standard materials include stainless steel, aluminum, NBR 70 for seals, and carbon steel for specific components.
- The GBXSS series offers an option for AISI 316 stainless steel for enhanced resistance.
- Gear ratios, torque ratios, and maximum output torque values are provided for each model.
- Protection grades (IP65 and IP67) and temperature ranges (-20° to +80°) are specified.
- ISO flange standards and rotation limits (0° to 90° ± 5°) are detailed.
- Ensure the actuator is not operating when switching modes to prevent damage.
- Regularly check and adjust screws to maintain optimal valve positions.
- Consider environmental conditions when selecting materials for specific applications.
The document details two models of limit switches by Omron, featuring silver alloy contacts, SPDT function, and operating with 7 wires. Voltage range is 250 VAC and 125-250 VDC, with an intensity of 15 A VAC and 0.3-0.6 A VDC. Each model includes two limit switches.
The GBFC Series Handwheel Gearbox includes two interchangeable indicators: an aluminum table indicator and a flat ABS pointer. A wiring diagram is provided for the integrated limit switch, signaling the full open or closed position of the gearbox.
- Introduction: SAF produces various gearboxes, including the GBSS and GBFC models, designed for manual valve operation. Proper adherence to instructions is crucial to avoid damage and ensure warranty coverage.
- Maintenance: Minimal maintenance is required, with checks recommended three months post-commissioning and annually. Key checks include bolt inspection, test runs, and grease leakage checks.
- Storage: Gearboxes should be stored safely, avoiding extreme temperatures and humidity. Long-term storage requires corrosion protection and periodic checks.
- Handling: Avoid dropping or impacting the gearbox. Lift it horizontally and do not use the input shaft or handwheel for lifting.
- Water Ingress Prevention: Apply anticorrosive agents to prevent corrosion from water ingress along the valve shaft.
- Correct Use: Ensure the gearbox is not overloaded by verifying valve size and torque requirements. Gearboxes are for manual operation only.
- Adjustment Screws Setting: Detailed steps are provided for setting adjustment screws to ensure proper valve operation.
- Installation and Operating: The document outlines installation steps, emphasizing the importance of correct positioning and sealing in humid environments.
- Operating: Instructions for manual operation of the gearbox are provided, including handwheel usage for opening and closing valves.
Catalog excerpts
Indice – Index Riduttori manuali Handwheel gearbox Disinseribili Declutchable Dati tecnici Technical data Manutenzione Maintenance Senza sblocco Without declutch Dati tecnici Technical data Serie GBXSS GBXSS series Serie GBSS GBSS series Manutenzione Maintenance Senza sblocco con finecorsa incorporato Without declutch with integrated limit switch Serie GBFC GBFC series Dati tecnici Technical data 0 0 Manutenzione Maintenance
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Note - Notes
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Riduttori manuali disinseribili – Declutchable handwheel gearbox Descrizione - Description Il riduttore manuale della serie GBD è appositamente progettato per valvole a farfalla, valvole a sfera e similari, in combinazione con attuatori pneumatici. Questo dispositivo permette il funzionamento manuale durante l’installazione ed il collaudo del sistema anche in assenza di fornitura d’aria. Può essere montato direttamente sulla maggior parte dei più comuni attuatori a pignone e cremagliera, e non necessita di una piastra distanziale installata tra sé e l’attuatore pneumatico. The GBD Series Handwheel...
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Riduttori manuali disinseribili – Declutchable handwheel gearbox Quadro lato valvola / Valve Square Quadro lato attuatore / Actuator Square Riduttori disinseribili serie GBD Declutchable handweels GBD series Codice Code Articolo Article Rapporto di trasmissione Gear ratio Rapporto coppia (input/output) Torque ratio (input/output) Max.Momento torcente(Nm) Max.Output Torque(Nm) Quadro lato attuatore Actuator Square Quadro lato valvola Valve Square Grado di protezione Protection grade Attacco a norme Connecting standard Rotazione Rotation Temperatura d’esercizio Temperature range Flangia ISO lato...
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Istruzioni d’uso e manutenzione – Instructions for use and maintenance Introduzione - Introduction SAF produce riduttori di tipi e dimensioni diversi. Il modello GBD è un riduttore a quarto di giro a sgancio con comando manuale per attuatori pneumatici ed elettrici con doppio effetto, ed è destinato al funzionamento manuale della valvola nel caso di mancato funzionamento del sistema automatico dell’attuatore. Attenzione: leggere queste istruzioni prima di installare il riduttore. Il mancato rispetto delle istruzioni sopra descritte può causare il danneggiamento del dispositivo e/o il malfunzionamento...
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Istruzioni d’uso e manutenzione – Instructions for use and maintenance Uso corretto - Correct use Prima dell’installazione, assicurarsi che il riduttore NON venga sovraccaricato durante l’uso normale. A tale scopo verificare che le dimensioni della valvola e la coppia di apertura richiesta non superino i valori indicati per il riduttore. I riduttori possono essere utilizzati solo per il funzionamento manuale. Prior to installation, be sure the gearbox will NOT be overloaded during normal use. For this reason, verify that valve size and required opening torque do not exceed the values given for...
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Istruzioni d’uso e manutenzione – Instructions for use and maintenance 3) Chiudere totalmente la valvola ruotando il volantino in senso orario. Quando non è possibile raggiungere la posizione di completa chiusura, allentare la “vite di regolazione - chiusura” (vedi fig. 2). Continuare a ruotare il volantino finché la valvola non è completamente chiusa. 4) Riavvitare la “vite di regolazione - chiusura” nel riduttore (serrandola a mano) finché non si blocca. Fissare la “vite di regolazione chiusura” con il controdado. 5) Aprire la valvola ruotando il volantino in senso antiorario. Quando non è...
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Istruzioni d’uso e manutenzione – Instructions for use and maintenance The GBD model is a declutchable manual override quarter turn gearbox for double acting pneumatic or electric actuators. For maximum allowable output torque, see technical features table at page 4.2. When switching from automatic to manual operations or during the manual operation of the gearbox in manual mode, it must be made sure the actuator is not operating or able to operate the gearbox as this may lead to damage. The gearbox is delivered in automatic mode (see fig. 3), with the valve operating by actuator. 1) The gearbox...
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Riduttori manuali senza sblocco – Handwheel gearbox without declutch Descrizione - Description Il riduttore manuale della serie GBSS, è un dispositivo di azionamento da un quarto di giro, idoneo per valvole a farfalla, valvole a sfera e similari. La verniciatura a polveri ad elettricità statica del corpo in lega di alluminio garantisce un aspetto eccellente, una forte adesione meccanica e grande resistenza alla corrosione e all’usura. The GBSS Series Handwheel Gearbox, one quarter turn drive device is suitable for butterfly valves, ball valves and similar. The static electricity powder coating...
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Riduttori manuali senza sblocco – Handwheel gearbox without declutch Riduttori senza sblocco serie GBSS Declutchable handweels without declutch GBSS series Grado di protezione Protection grade Attacco a norme Connecting standard Articolo Article Temperatura d’esercizio Temperature range Codice Code Rotazione Rotation Rapporto di trasmissione Gear ratio Rapporto coppia (input/output) Torque ratio (input/output) Max.Momento torcente(Nm) Max.Output Torque(Nm) Quadro lato valvola Valve Square
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Riduttori manuali senza sblocco – Handwheel gearbox without declutch GBXSS Descrizione - Description Il riduttore manuale della serie GBXSS, è un dispositivo di azionamento da un quarto di giro, idoneo per valvole a farfalla, valvole a sfera e similari. Il corpo completamente realizzato in acciaio INOX AISI 304 (o INOX AISI 316, su richiesta) garantisce elevata resistenza alla corrosione e all’usura, ed idoneità in ambienti dove è richiesto il massimo livello di igiene. The GBXSS Series Handwheel Gearbox, one quarter turn drive device is suitable for butterfly valves, ball valves and similar....
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